starlingx/kernel
Code Issues Proposed changes

Linux std kernel upgrade to align with CentOS 8

Browse Source 
(cherry picked from commit 9111cf409030d92d1ed0d48b00d6ad64f4399bc4)
(re-submit of patch: https://review.opendev.org/#/c/710919/
 starlingx/integ into starlingx/kernel)

The std kernel is upgraded from centos7.6 to centos8
and is divided into two parts:

1.kernel patches
After analysis of the code and patch,
there are nine patches on centos7.6 to update to centos8.
Detailed patch analysis can be found at
https://github.com/StarlingX-Neusoft/Centos8/blob/master/
Kernel_Upgrade_to_4.18-CentOS8_Analysis.xlsx documentation
[STX Kernel-std Patches Details] sheet.

The remaining patches are as follows:
Patch40002: Notification-of-death-of-arbitrary-processes.patch
Patch40004: PCI-Add-ACS-quirk-for-Intel-Fortville-NICs.patch
Patch40005: affine-compute-kernel-threads.patch
Patch40006: Affine-irqs-and-workqueues-with-kthread_cpus.patch
Patch40007: Make-kernel-start-eth-devices-at-offset.patch
Patch40008: intel-iommu-allow-ignoring-Ethernet-device-RMRR-with.patch
Patch40022: US101216-IMA-support-in-Titanium-kernel.patch
Patch40023: US103091-IMA-System-Configuration.patch
Patch40026: turn-off-write-same-in-smartqpi-driver.patch

2.kernel config
Currently, We use the STX version of the kernel config
unmodified from what we used for CentOS 7.6.

3. The -j "% (nproc)" parameter was not added to
lines 1496 and 1499 of the original spec file，
because this parameter causes compilation errors.
pushd tools/iio/
%{make}
popd
pushd tools/gpio/
%{make}
popd

The above patches and config can be successfully built
in the build container centos8.

Change-Id: Ic75feda21eee0530a430658b3368fbdf47767e36
Story: 2006728
Task: 37150
Depends-On: https://review.opendev.org/710907
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Signed-off-by: Dongqi Chen <chen.dq@neusoft.com>
This commit is contained in:
Dongqi Chen
2020-04-16 09:45:27 +08:00
committed by Lin Shuicheng
parent f6ed6f5843
commit d27f1ee36e
39 changed files with 516 additions and 4550 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel-std/centos/build_srpm.data
View File

@@ -1,4 +1,4 @@
COPY_LIST="files/*"
TIS_PATCH_VER=4
TIS_PATCH_VER=1
BUILD_IS_BIG=11
BUILD_IS_SLOW=12

290
kernel-std/centos/meta_patches/Build-logic-and-sources-for-TiC.patch
View File

@@ -5,84 +5,82 @@ Subject: [PATCH] Build logic and sources for TiC
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: zhao.shuai <zhaos@neusoft.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
Signed-off-by: Robin Lu <bin1.lu@intel.com>
---
SPECS/kernel.spec | 73 ++++++++++++++++++++++++++++++++++++++---------
1 file changed, 60 insertions(+), 13 deletions(-)
SPECS/kernel.spec | 78 ++++++++++++++++++++++++++++++++++++++---------
1 file changed, 64 insertions(+), 14 deletions(-)
diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index 852fd10..e42177e 100644
index b11034f..1927d5a 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -5,7 +5,8 @@ Summary: The Linux kernel
@@ -3,6 +3,8 @@
%define dist .el7
Summary: The Linux kernel
-# % define buildid .local
+%define dist .el8_0
+
# For a kernel released for public testing, released_kernel should be 1.
# For internal testing builds during development, it should be 0.
%global released_kernel 1
@@ -31,14 +33,17 @@ Summary: The Linux kernel
%endif
# define buildid .local
+# This is the STX patch release
+%define buildid .%{tis_patch_ver}.tis
# For a kernel released for public testing, released_kernel should be 1.
# For internal testing builds during development, it should be 0.
@@ -14,12 +15,14 @@ Summary: The Linux kernel
%global distro_build 1062
%define rpmversion 3.10.0
-%define pkgrelease 1062.1.2.el7
+%define _pkgrelease 1062.1.2
+%define pkgrelease %{_pkgrelease}.el7
+
%define rpmversion 4.18.0
-%define pkgrelease 80.11.2.el8_0
+%define _pkgrelease 80.11.2
+%define pkgrelease %{_pkgrelease}.el8_0
# allow pkg_release to have configurable %%{?dist} tag
%define specrelease 1062.1.2%{?dist}
%define specrelease 80.11.2%{?dist}
-%define pkg_release %{specrelease}%{?buildid}
+%define pkg_release %{specrelease}%{buildid}
# The kernel tarball/base version
%define rheltarball %{rpmversion}-%{pkgrelease}
@@ -69,7 +72,7 @@ Summary: The Linux kernel
# What parts do we want to build? We must build at least one kernel.
# These are the kernels that are built IF the architecture allows it.
@@ -85,9 +90,9 @@ Summary: The Linux kernel
# Only build the debug kernel (--with dbgonly):
%define with_dbgonly %{?_with_dbgonly: 1} %{?!_with_dbgonly: 0}
# Control whether we perform a compat. check against published ABI.
-%define with_kabichk %{?_without_kabichk: 0} %{?!_without_kabichk: 1}
+%define with_kabichk 0
# Control whether we perform a compat. check against DUP ABI.
%define with_kabidupchk %{?_with_kabidupchk: 1} %{?!_with_kabidupchk: 0}
@@ -92,7 +95,7 @@ Summary: The Linux kernel
# Set debugbuildsenabled to 1 for production (build separate debug kernels)
# and 0 for rawhide (all kernels are debug kernels).
# See also 'make debug' and 'make release'. RHEL only ever does 1.
-%define debugbuildsenabled 1
+%define debugbuildsenabled 0
%define with_gcov %{?_with_gcov: 1} %{?!_with_gcov: 0}
@@ -386,6 +389,7 @@ BuildRequires: bison flex
# required for zfcpdump
BuildRequires: glibc-static
-%define with_kabidupchk %{?_with_kabidupchk: 1} %{?!_with_kabidupchk: 0}
+%define with_kabidupchk 1
#
# Control whether to run an extensive DWARF based kABI check.
# Note that this option needs to have baseline setup in SOURCE300.
@@ -352,6 +357,7 @@ BuildRequires: xmlto
%if %{with_perf} || %{with_tools}
BuildRequires: asciidoc
%endif
+BuildRequires: util-linux
Source0: linux-%{rpmversion}-%{pkgrelease}.tar.xz
@@ -453,6 +457,12 @@ Patch1000: debrand-single-cpu.patch
Patch1001: debrand-rh_taint.patch
Patch1002: debrand-rh-i686-cpu.patch
@@ -412,6 +418,12 @@ Source2001: cpupower.config
# Sources for CentOS debranding
Source9000: centos.pem
+# StarlingX Cloud sources here.
+# Not sure if we need to worry about numerical collisions between
+# SourceX and PatchX, so let's not risk it
+Source30000: kernel-3.10.0-x86_64.config.tis_extra
+Source30000: kernel-x86_64.config.tis_extra
+Source30001: ima_signing_key.pub
+
BuildRoot: %{_tmppath}/kernel-%{KVRA}-root
## Patches needed for building this package
%description
@@ -626,6 +636,13 @@ This package provides debug information for the bpftool package.
Patch1000: debrand-single-cpu.patch
@@ -638,6 +650,13 @@ eBPF sample programs and selftests.
%endif # with_bpftool
%endif # with_bpf_samples
+%ifarch x86_64
+%package unsigned
@@ -94,140 +92,150 @@ index 852fd10..e42177e 100644
%if %{with_gcov}
%package gcov
Summary: gcov graph and source files for coverage data collection.
@@ -791,6 +808,9 @@ cd linux-%{KVRA}
# Drop some necessary files from the source dir into the buildroot
cp $RPM_SOURCE_DIR/kernel-%{version}-*.config .
@@ -918,6 +937,8 @@ cd configs
# Drop some necessary files from the source dir into the buildroot
cp $RPM_SOURCE_DIR/kernel-*.config .
+# Copy any TiS-specific config changes
+cp $RPM_SOURCE_DIR/kernel-%{version}-*.config.tis_extra .
+
ApplyOptionalPatch linux-kernel-test.patch
ApplyOptionalPatch debrand-single-cpu.patch
ApplyOptionalPatch debrand-rh_taint.patch
@@ -835,6 +855,15 @@ for i in *.config
do
mv $i .config
Arch=`head -1 .config | cut -b 3-`
+
+ # Handle StarlingX Cloud customizations. Use -n to match oldnoconfig below. We want this before
+ # the make line below so that the one below removes any dependencies of ones that we
+ # turn off here. We also want it before "make listnewconfig" so that we can set the
+ # config option for new configs introduced in the StarlingX Cloud patches.
+cp $RPM_SOURCE_DIR/kernel-*.config.tis_extra .
cp %{SOURCE41} .
VERSION=%{version} ./generate_all_configs.sh
@@ -939,6 +960,17 @@ do
done
%endif
+# Handle StarlingX Cloud customizations. Use -n to match oldnoconfig below. We want this before
+# the make line below so that the one below removes any dependencies of ones that we
+# turn off here. We also want it before "make listnewconfig" so that we can set the
+# config option for new configs introduced in the StarlingX Cloud patches.
+for i in *.config
+do
+ if [ -f ${i}.tis_extra ]; then
+ scripts/kconfig/merge_config.sh -m -n .config ${i}.tis_extra
+ ../scripts/kconfig/merge_config.sh -m -n .config ${i}.tis_extra
+ fi
+done
+
make %{?cross_opts} ARCH=$Arch listnewconfig | grep -E '^CONFIG_' >.newoptions || true
%if %{listnewconfig_fail}
if [ -s .newoptions ]; then
@@ -908,12 +937,13 @@ BuildKernel() {
cp %{SOURCE42} .
./process_configs.sh -w -c kernel %{rpmversion}
@@ -1003,7 +1035,8 @@ BuildKernel() {
# and now to start the build process
- make %{?cross_opts} -s mrproper
+ make -j"%(nproc)" %{?cross_opts} -s mrproper
cp %{SOURCE11} . # x509.genkey
cp %{SOURCE12} . # extra_certificates
cp %{SOURCE15} . # rheldup3.x509
cp %{SOURCE16} . # rhelkpatch1.x509
+ cp %{SOURCE30001} . # ima_signing_key.pub
- %{make} -s mrproper
+ %{make} -j"%(nproc)" -s mrproper
+ cp %{SOURCE30001} certs/. # ima_signing_key.pub
cp configs/$Config .config
@@ -928,8 +958,8 @@ BuildKernel() {
fi
%endif
%if %{signkernel}%{signmodules}
@@ -1013,8 +1046,8 @@ BuildKernel() {
Arch=`head -1 .config | cut -b 3-`
echo USING ARCH=$Arch
- make -s %{?cross_opts} ARCH=$Arch oldnoconfig >/dev/null
- make -s %{?cross_opts} ARCH=$Arch V=1 %{?_smp_mflags} KCFLAGS="%{?kcflags}" WITH_GCOV="%{?with_gcov}" $MakeTarget %{?sparse_mflags}
+ make -s -j"%(nproc)" %{?cross_opts} ARCH=$Arch oldnoconfig >/dev/null
+ make -s -j"%(nproc)" %{?cross_opts} ARCH=$Arch V=1 %{?_smp_mflags} KCFLAGS="%{?kcflags}" WITH_GCOV="%{?with_gcov}" $MakeTarget %{?sparse_mflags}
if [ "$Flavour" != "kdump" ]; then
make -s %{?cross_opts} ARCH=$Arch V=1 %{?_smp_mflags} KCFLAGS="%{?kcflags}" WITH_GCOV="%{?with_gcov}" modules %{?sparse_mflags} || exit 1
@@ -953,6 +983,8 @@ BuildKernel() {
- %{make} -s ARCH=$Arch oldnoconfig >/dev/null
- %{make} -s ARCH=$Arch V=1 %{?_smp_mflags} KCFLAGS="%{?kcflags}" WITH_GCOV="%{?with_gcov}" $MakeTarget %{?sparse_mflags} %{?kernel_mflags}
+ %{make} -s -j"%(nproc)" ARCH=$Arch oldnoconfig >/dev/null
+ %{make} -s -j"%(nproc)" ARCH=$Arch V=1 %{?_smp_mflags} KCFLAGS="%{?kcflags}" WITH_GCOV="%{?with_gcov}" $MakeTarget %{?sparse_mflags} %{?kernel_mflags}
if [ $DoModules -eq 1 ]; then
%{make} -s ARCH=$Arch V=1 %{?_smp_mflags} KCFLAGS="%{?kcflags}" WITH_GCOV="%{?with_gcov}" modules %{?sparse_mflags} || exit 1
fi
@@ -1059,6 +1092,8 @@ BuildKernel() {
echo "pesigning failed"
exit 1
fi
# EFI SecureBoot signing, x86_64-only
%ifarch x86_64
+ cp $KernelImage vmlinuz.unsigned
+ $CopyKernel vmlinuz.unsigned $RPM_BUILD_ROOT/%{image_install_path}/vmlinuz.unsigned
%pesign -s -i $KernelImage -o $KernelImage.signed -a %{SOURCE13} -c %{SOURCE14} -n %{pesign_name}
mv $KernelImage.signed $KernelImage
%endif
@@ -969,7 +1001,7 @@ BuildKernel() {
if [ "$Flavour" != "kdump" ]; then
# Override $(mod-fw) because we don't want it to install any firmware
# we'll get it from the linux-firmware package and we don't want conflicts
- make -s %{?cross_opts} %{?_smp_mflags} ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT modules_install KERNELRELEASE=$KernelVer mod-fw=
+ make -s -j"%(nproc)" %{?cross_opts} %{?_smp_mflags} ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT modules_install KERNELRELEASE=$KernelVer mod-fw=
%if %{with_gcov}
# install gcov-needed files to $BUILDROOT/$BUILD/...:
# gcov_info->filename is absolute path
@@ -979,7 +1011,7 @@ BuildKernel() {
%endif
mv vmlinuz.signed $SignImage
if [ "$KernelExtension" == "gz" ]; then
gzip -f9 $SignImage
@@ -1078,7 +1113,7 @@ BuildKernel() {
if [ $DoModules -eq 1 ]; then
# Override $(mod-fw) because we don't want it to install any firmware
# we'll get it from the linux-firmware package and we don't want conflicts
- %{make} -s ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT modules_install KERNELRELEASE=$KernelVer mod-fw=
+ %{make} -s -j"%(nproc)" ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT modules_install KERNELRELEASE=$KernelVer mod-fw=
fi
%ifarch %{vdso_arches}
- make -s %{?cross_opts} ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT vdso_install KERNELRELEASE=$KernelVer
+ make -s -j"%(nproc)" %{?cross_opts} ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT vdso_install KERNELRELEASE=$KernelVer
if [ ! -s ldconfig-kernel.conf ]; then
echo > ldconfig-kernel.conf "\
# Placeholder file, no vDSO hwcap entries used in this kernel."
@@ -1188,6 +1220,12 @@ BuildKernel() {
cp signing_key.priv signing_key.priv.sign${Flavour:+.${Flavour}}
cp signing_key.x509 signing_key.x509.sign${Flavour:+.${Flavour}}
+ # STX: Copy these keys as part of the devel package
+ # The Module signing keys are to ensure that only Out-of-tree
+ # built against the StarlingX Kernel get signed and loaded sans warnings
+ cp signing_key.priv ${RPM_BUILD_ROOT}/lib/modules/${KernelVer}/build/
+ cp signing_key.x509 ${RPM_BUILD_ROOT}/lib/modules/${KernelVer}/build/
+
# remove files that will be auto generated by depmod at rpm -i time
for i in alias alias.bin builtin.bin ccwmap dep dep.bin ieee1394map inputmap isapnpmap ofmap pcimap seriomap symbols symbols.bin usbmap softdep devname
do
@@ -1248,15 +1286,15 @@ make %{?cross_opts} %{?_smp_mflags} -C tools/power/cpupower CPUFREQ_BENCH=false
%if %{with_gcov}
@@ -1090,7 +1125,7 @@ BuildKernel() {
%endif
if [ $DoVDSO -ne 0 ]; then
- %{make} -s ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT vdso_install KERNELRELEASE=$KernelVer
+ %{make} -s -j"%(nproc)" ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT vdso_install KERNELRELEASE=$KernelVer
if [ ! -s ldconfig-kernel.conf ]; then
echo > ldconfig-kernel.conf "\
# Placeholder file, no vDSO hwcap entries used in this kernel."
@@ -1408,6 +1443,12 @@ BuildKernel() {
# Save the signing keys so we can sign the modules in __modsign_install_post
cp certs/signing_key.pem certs/signing_key.pem.sign${Flav}
cp certs/signing_key.x509 certs/signing_key.x509.sign${Flav}
+ # STX: Copy these keys as part of the devel package
+ # The Module signing keys are to ensure that only Out-of-tree
+ # built against the StarlingX Kernel get signed and loaded sans warnings
+ cp certs/signing_key.pem ${RPM_BUILD_ROOT}/lib/modules/${KernelVer}/build/
+ chmod 755 ${RPM_BUILD_ROOT}/lib/modules/${KernelVer}/build/signing_key.pem
+ cp certs/signing_key.x509 ${RPM_BUILD_ROOT}/lib/modules/${KernelVer}/build/
fi
%endif
@@ -1482,15 +1523,15 @@ chmod +x tools/power/cpupower/utils/version-gen.sh
%endif
%ifarch x86_64
pushd tools/power/x86/x86_energy_perf_policy/
- make
+ make -j"%(nproc)"
- %{make}
+ %{make} -j"%(nproc)"
popd
pushd tools/power/x86/turbostat
- make
+ make -j"%(nproc)"
- %{make}
+ %{make} -j"%(nproc)"
popd
%endif #turbostat/x86_energy_perf_policy
%endif
pushd tools
-make tmon
+make -j"%(nproc)" tmon
pushd tools/thermal/tmon/
-%{make}
+%{make} -j"%(nproc)"
popd
pushd tools/iio/
%{make}
@@ -1513,11 +1554,11 @@ popd
# in the source tree. We installed them previously to $RPM_BUILD_ROOT/usr
# but there's no way to tell the Makefile to take them from there.
make headers_install
-%{make} -s ARCH=$Arch V=1 samples/bpf/
+%{make} -s -j"%(nproc)" ARCH=$Arch V=1 samples/bpf/
pushd tools/testing/selftests
# We need to install here because we need to call make with ARCH set which
# doesn't seem possible to do in the install section.
-%{make} -s ARCH=$Arch V=1 TARGETS=bpf INSTALL_PATH=%{buildroot}%{_libexecdir}/bpf-samples/selftests install
+%{make} -s -j"%(nproc)" ARCH=$Arch V=1 TARGETS=bpf INSTALL_PATH=%{buildroot}%{_libexecdir}/bpf-samples/selftests install
popd
%endif
@@ -1550,6 +1588,10 @@ fi}\
%{expand:\
%{_sbindir}/new-kernel-pkg --package kernel%{?-v:-%{-v*}} --install %{KVRA}%{?-v:.%{-v*}} || exit $?\
}\
@@ -1819,6 +1860,10 @@ fi\
#
%define kernel_variant_posttrans() \
%{expand:%%posttrans %{?1:%{1}-}core}\
+# If this is a pkg upgrade (ie installed as a patch), set the reboot flag\
+if [ $1 -gt 1 ] ; then\
+ touch /var/run/node_is_patched_rr\
+fi\
%{nil}
#
@@ -1775,6 +1817,11 @@ fi
%kernel_variant_files %{with_debug} debug
%kernel_variant_files %{with_kdump} kdump
if [ -x %{_sbindir}/weak-modules ]\
then\
%{_sbindir}/weak-modules --add-kernel %{KVERREL}%{?1:+%{1}} || exit $?\
@@ -2090,6 +2135,11 @@ fi
%kernel_variant_files %{with_vdso_install} %{with_debug} debug
%kernel_variant_files %{with_vdso_install} %{with_zfcpdump} zfcpdump
+%ifarch x86_64
+%files unsigned
+/boot/vmlinuz.unsigned
+%endif
+
%changelog
* Fri Sep 20 2019 CentOS Sources <bugs@centos.org> - 3.10.0-1062.1.2.el7
- Apply debranding changes
# plz don't put in a version string unless you're going to tag
# and build.
#
--
1.8.3.1
2.18.1

44
kernel-std/centos/meta_patches/Compile-issues.patch
View File

@@ -1,44 +0,0 @@
From 3073ab68b8a27cdaf31213778d029669f50e2632 Mon Sep 17 00:00:00 2001
Message-Id: <3073ab68b8a27cdaf31213778d029669f50e2632.1584644494.git.Jim.Somerville@windriver.com>
In-Reply-To: <55a6b125fab32183cbabee1e436197242f926c0c.1584644493.git.Jim.Somerville@windriver.com>
References: <55a6b125fab32183cbabee1e436197242f926c0c.1584644493.git.Jim.Somerville@windriver.com>
From: "zhao.shuai" <zhaos@neusoft.com>
Date: Tue, 6 Aug 2019 16:18:04 +0800
Subject: [PATCH 2/2] Compile issues
Signed-off-by: zhao.shuai <zhaos@neusoft.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
SPECS/kernel.spec | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index 5f23982..640f872 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -498,6 +498,12 @@ Patch40029: rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
Patch40030: rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
# Workaround for broken bios causing IOMMU issues
Patch40031: Allow-dmar-quirks-for-broken-bioses.patch
+# Fix assorted compilation issues
+Patch40100: fix-compilation-issues.patch
+# Fix CentOS 7.6 upgrade compile error
+Patch40101: fix-CentOS-7.6-upgrade-compile-error.patch
+# Compile fix for disabling CONFIG_MEMCG_KMEM
+Patch40102: compile-fix-for-disabling-CONFIG_MEMCG_KMEM.patch
BuildRoot: %{_tmppath}/kernel-%{KVRA}-root
@@ -882,6 +888,9 @@ ApplyOptionalPatch ipvs-fix-memory-leak-in-ip_vs_ctl.c.patch
ApplyOptionalPatch rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
ApplyOptionalPatch rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
ApplyOptionalPatch Allow-dmar-quirks-for-broken-bioses.patch
+ApplyOptionalPatch fix-compilation-issues.patch
+ApplyOptionalPatch fix-CentOS-7.6-upgrade-compile-error.patch
+ApplyOptionalPatch compile-fix-for-disabling-CONFIG_MEMCG_KMEM.patch
# Any further pre-build tree manipulations happen here.
--
1.8.3.1

77
kernel-std/centos/meta_patches/Kernel-source-patches-for-TiC.patch
View File

@@ -1,101 +1,58 @@
From 55a6b125fab32183cbabee1e436197242f926c0c Mon Sep 17 00:00:00 2001
Message-Id: <55a6b125fab32183cbabee1e436197242f926c0c.1584644493.git.Jim.Somerville@windriver.com>
From ac67546ccbecd3ee18145be31d87d7253048adda Mon Sep 17 00:00:00 2001
Message-Id: <ac67546ccbecd3ee18145be31d87d7253048adda.1566587341.git.Jim.Somerville@windriver.com>
From: "zhao.shuai" <zhaos@neusoft.com>
Date: Mon, 5 Aug 2019 17:55:01 +0800
Subject: [PATCH 1/2] Kernel source patches for TiC
Subject: [PATCH 1/2] Kernel-source-patches-for-TiC
Signed-off-by: zhao.shuai <zhaos@neusoft.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Robin Lu <bin1.lu@intel.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
SPECS/kernel.spec | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
SPECS/kernel.spec | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index 0b2ff2e..5f23982 100644
index 1927d5a..a851036 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -463,6 +463,42 @@ Patch1002: debrand-rh-i686-cpu.patch
Source30000: kernel-3.10.0-x86_64.config.tis_extra
Source30001: ima_signing_key.pub
@@ -433,6 +433,17 @@ Patch1002: debrand-rh-i686-cpu.patch
# empty final patch to facilitate testing of kernel patches
Patch999999: linux-kernel-test.patch
+# StarlingX Cloud patches here.
+Patch40001: Fix-compile-issue-when-transparent-hugepages-are-off.patch
+Patch40002: Notification-of-death-of-arbitrary-processes.patch
+Patch40003: CGTS-3744-route-do-not-cache-fib-route-info-on-local.patch
+Patch40004: PCI-Add-ACS-quirk-for-Intel-Fortville-NICs.patch
+Patch40005: affine-compute-kernel-threads.patch
+Patch40006: Affine-irqs-and-workqueues-with-kthread_cpus.patch
+Patch40007: Make-kernel-start-eth-devices-at-offset.patch
+Patch40008: intel-iommu-allow-ignoring-Ethernet-device-RMRR-with.patch
+Patch40009: memblock-introduce-memblock_alloc_range.patch
+Patch40010: cma-add-placement-specifier-for-cma-kernel-parameter.patch
+Patch40011: x86-enable-DMA-CMA-with-swiotlb.patch
+Patch40013: Enable-building-kernel-with-CONFIG_BLK_DEV_NBD.patch
+Patch40014: x86-make-dma_alloc_coherent-return-zeroed-memory-if-.patch
+Patch40016: Porting-Cacheinfo-from-Kernel-4.10.17.patch
+Patch40017: Fix-cacheinfo-compilation-issues-for-3.10.patch
+Patch40018: cpuidle-menu-stop-seeking-deeper-idle-if-current-sta.patch
+Patch40019: cpuidle-menu-add-per-CPU-PM-QoS-resume-latency-consi.patch
+Patch40020: CPU-PM-expose-pm_qos_resume_latency-for-CPUs.patch
+Patch40021: cpuidle-menu-Avoid-taking-spinlock-for-accessing-QoS.patch
+Patch40022: US101216-IMA-support-in-Titanium-kernel.patch
+Patch40023: US103091-IMA-System-Configuration.patch
+# Fix compile warnings that break the build
+Patch40024: aic94xx-Skip-reading-user-settings-if-flash-is-not-f.patch
+Patch40025: dpt_i2o-fix-build-warning.patch
+# DRBD was choking on write same
+Patch40026: turn-off-write-same-in-smartqpi-driver.patch
+# Fix use-after-free in eventpoll_release_file
+Patch40027: epoll-fix-use-after-free-in-eventpoll_release_file.patch
+# Fix three potential kernel memory leaks
+Patch40028: ipvs-fix-memory-leak-in-ip_vs_ctl.c.patch
+Patch40029: rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
+Patch40030: rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
+# Workaround for broken bios causing IOMMU issues
+Patch40031: Allow-dmar-quirks-for-broken-bioses.patch
+
BuildRoot: %{_tmppath}/kernel-%{KVRA}-root
# END OF PATCH DEFINITIONS
%description
@@ -816,6 +852,37 @@ ApplyOptionalPatch debrand-single-cpu.patch
BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
@@ -900,6 +911,17 @@ ApplyOptionalPatch debrand-single-cpu.patch
ApplyOptionalPatch debrand-rh_taint.patch
ApplyOptionalPatch debrand-rh-i686-cpu.patch
+# StarlingX Cloud patches here.
+ApplyOptionalPatch Fix-compile-issue-when-transparent-hugepages-are-off.patch
+ApplyOptionalPatch Notification-of-death-of-arbitrary-processes.patch
+ApplyOptionalPatch CGTS-3744-route-do-not-cache-fib-route-info-on-local.patch
+ApplyOptionalPatch PCI-Add-ACS-quirk-for-Intel-Fortville-NICs.patch
+ApplyOptionalPatch affine-compute-kernel-threads.patch
+ApplyOptionalPatch Affine-irqs-and-workqueues-with-kthread_cpus.patch
+ApplyOptionalPatch Make-kernel-start-eth-devices-at-offset.patch
+ApplyOptionalPatch intel-iommu-allow-ignoring-Ethernet-device-RMRR-with.patch
+ApplyOptionalPatch memblock-introduce-memblock_alloc_range.patch
+ApplyOptionalPatch cma-add-placement-specifier-for-cma-kernel-parameter.patch
+ApplyOptionalPatch x86-enable-DMA-CMA-with-swiotlb.patch
+ApplyOptionalPatch Enable-building-kernel-with-CONFIG_BLK_DEV_NBD.patch
+ApplyOptionalPatch x86-make-dma_alloc_coherent-return-zeroed-memory-if-.patch
+ApplyOptionalPatch Porting-Cacheinfo-from-Kernel-4.10.17.patch
+ApplyOptionalPatch Fix-cacheinfo-compilation-issues-for-3.10.patch
+ApplyOptionalPatch cpuidle-menu-stop-seeking-deeper-idle-if-current-sta.patch
+ApplyOptionalPatch cpuidle-menu-add-per-CPU-PM-QoS-resume-latency-consi.patch
+ApplyOptionalPatch CPU-PM-expose-pm_qos_resume_latency-for-CPUs.patch
+ApplyOptionalPatch cpuidle-menu-Avoid-taking-spinlock-for-accessing-QoS.patch
+ApplyOptionalPatch US101216-IMA-support-in-Titanium-kernel.patch
+ApplyOptionalPatch US103091-IMA-System-Configuration.patch
+ApplyOptionalPatch aic94xx-Skip-reading-user-settings-if-flash-is-not-f.patch
+ApplyOptionalPatch dpt_i2o-fix-build-warning.patch
+ApplyOptionalPatch turn-off-write-same-in-smartqpi-driver.patch
+ApplyOptionalPatch epoll-fix-use-after-free-in-eventpoll_release_file.patch
+ApplyOptionalPatch ipvs-fix-memory-leak-in-ip_vs_ctl.c.patch
+ApplyOptionalPatch rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
+ApplyOptionalPatch rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
+ApplyOptionalPatch Allow-dmar-quirks-for-broken-bioses.patch
+
# Any further pre-build tree manipulations happen here.
# END OF PATCH APPLICATIONS
chmod +x scripts/checkpatch.pl
# Any further pre-build tree manipulations happen here.
--
1.8.3.1
2.18.1

1
kernel-std/centos/meta_patches/PATCH_ORDER
View File

@@ -1,3 +1,2 @@
Build-logic-and-sources-for-TiC.patch
Kernel-source-patches-for-TiC.patch
Compile-issues.patch

28
kernel-std/centos/patches/Affine-irqs-and-workqueues-with-kthread_cpus.patch
View File

@@ -23,34 +23,36 @@ Signed-off-by: Chris Friesen <chris.friesen@windriver.com>
Signed-off-by: Vu Tran <vu.tran@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
kernel/irq/manage.c | 7 +++++++
kernel/workqueue.c | 4 ++++
2 files changed, 11 insertions(+)
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index e639145..be46349 100644
index 9a8b7ba..eaefb91 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -372,6 +372,13 @@ setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask)
if (cpumask_intersects(mask, nodemask))
cpumask_and(mask, mask, nodemask);
@@ -400,6 +400,13 @@ int irq_setup_affinity(struct irq_desc *desc)
if (cpumask_intersects(&mask, nodemask))
cpumask_and(&mask, &mask, nodemask);
}
+
+ /* This will narrow down the affinity further if we've specified
+ * a reduced cpu_kthread_mask in the boot args.
+ */
+ if (cpumask_intersects(mask, cpu_kthread_mask))
+ cpumask_and(mask, mask, cpu_kthread_mask);
+ if (cpumask_intersects(&mask, cpu_kthread_mask))
+ cpumask_and(&mask, &mask, cpu_kthread_mask);
+
irq_do_set_affinity(&desc->irq_data, mask, false);
return 0;
}
ret = irq_do_set_affinity(&desc->irq_data, &mask, false);
raw_spin_unlock(&mask_lock);
return ret;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 179cbb2..9524a6f 100644
index 78b1920..886fe16 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -5441,6 +5441,8 @@ static int __init init_workqueues(void)
@@ -5707,6 +5707,8 @@ int __init workqueue_init_early(void)
BUG_ON(!(attrs = alloc_workqueue_attrs(GFP_KERNEL)));
attrs->nice = std_nice[i];
@@ -59,7 +61,7 @@ index 179cbb2..9524a6f 100644
unbound_std_wq_attrs[i] = attrs;
/*
@@ -5451,6 +5453,8 @@ static int __init init_workqueues(void)
@@ -5717,6 +5719,8 @@ int __init workqueue_init_early(void)
BUG_ON(!(attrs = alloc_workqueue_attrs(GFP_KERNEL)));
attrs->nice = std_nice[i];
attrs->no_numa = true;
@@ -69,5 +71,5 @@ index 179cbb2..9524a6f 100644
}
--
1.8.3.1
2.18.1

58
kernel-std/centos/patches/CGTS-3744-route-do-not-cache-fib-route-info-on-local.patch
View File

@@ -1,58 +0,0 @@
From 049ff2fee2c00370ddc9c9bb598fe1e89aaced2d Mon Sep 17 00:00:00 2001
Message-Id: <049ff2fee2c00370ddc9c9bb598fe1e89aaced2d.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Allain Legacy <allain.legacy@windriver.com>
Date: Fri, 29 Jan 2016 12:13:40 -0500
Subject: [PATCH 03/26] CGTS-3744: route: do not cache fib route info on local
routes with oif
For local routes that require a particular output interface we do not want to
cache the result. Caching the result causes incorrect behaviour when there are
multiple source addresses on the interface. The end result being that if the
intended recipient is waiting on that interface for the packet he won't receive
it because it will be delivered on the loopback interface and the IP_PKTINFO
ipi_ifindex will be set to the loopback interface as well.
This can be tested by running a program such as "dhcp_release" which attempts
to inject a packet on a particular interface so that it is received by another
program on the same board. The receiving process should see an IP_PKTINFO
ipi_ifndex value of the source interface (e.g., eth1) instead of the loopback
interface (e.g., lo). The packet will still appear on the loopback interface
in tcpdump but the important aspect is that the CMSG info is correct.
Sample dhcp_release command line:
dhcp_release eth1 192.168.204.222 02:11:33:22:44:66
Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
net/ipv4/route.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f19aca2..5246096 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2121,6 +2121,17 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
*/
if (fi && res->prefixlen < 4)
fi = NULL;
+ } else if ((type == RTN_LOCAL) && (orig_oif != 0)) {
+ /*
+ * For local routes that require a particular output interface we do
+ * not want to cache the result. Caching the result causes incorrect
+ * behaviour when there are multiple source addresses on the interface.
+ * The end result being that if the intended recipient is waiting on
+ * that interface for the packet he won't receive it because it will be
+ * delivered on the loopback interface and the IP_PKTINFO ipi_ifindex
+ * will be set to the loopback interface as well.
+ */
+ fi = NULL;
}
fnhe = NULL;
--
1.8.3.1

60
kernel-std/centos/patches/CPU-PM-expose-pm_qos_resume_latency-for-CPUs.patch
View File

@@ -1,60 +0,0 @@
From 648072810b35e6251c6503a8e6693deeb6d0a89d Mon Sep 17 00:00:00 2001
From: Alex Shi <alex.shi@linaro.org>
Date: Thu, 12 Jan 2017 21:27:03 +0800
Subject: [PATCH] CPU / PM: expose pm_qos_resume_latency for CPUs
[ commit 37efa4b41ffb31dcdfc3beb97d47992bb2a083e5 from linux-stable ]
The cpu-dma PM QoS constraint impacts all the cpus in the system. There is no way
to let the user to choose a PM QoS constraint per cpu.
The following patch exposes to the userspace a per cpu based sysfs file
in order to let the userspace to change the value of the PM QoS latency
constraint.
This change is inoperative in its form and the cpuidle governors have to
take into account the per cpu latency constraint in addition to the
global cpu-dma latency constraint in order to operate properly.
BTW
The pm_qos_resume_latency usage defined in
Documentation/ABI/testing/sysfs-devices-power
The /sys/devices/.../power/pm_qos_resume_latency_us attribute
contains the PM QoS resume latency limit for the given device,
which is the maximum allowed time it can take to resume the
device, after it has been suspended at run time, from a resume
request to the moment the device will be ready to process I/O,
in microseconds. If it is equal to 0, however, this means that
the PM QoS resume latency may be arbitrary.
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Alex Kozyrev <alex.kozyrev@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/base/cpu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 65e786d..91d620f 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -15,6 +15,7 @@
#include <linux/percpu.h>
#include <linux/acpi.h>
#include <linux/tick.h>
+#include <linux/pm_qos.h>
#include "base.h"
@@ -318,6 +319,7 @@ int register_cpu(struct cpu *cpu, int num)
per_cpu(cpu_sys_devices, num) = &cpu->dev;
if (!error)
register_cpu_under_node(num, cpu_to_node(num));
+ dev_pm_qos_expose_latency_limit(&cpu->dev, 0);
#ifdef CONFIG_KEXEC
if (!error)
--
2.7.4

36
kernel-std/centos/patches/Enable-building-kernel-with-CONFIG_BLK_DEV_NBD.patch
View File

@@ -1,36 +0,0 @@
From aeefa74788f568a9c3b49e18a17fc3d59657bbe0 Mon Sep 17 00:00:00 2001
Message-Id: <aeefa74788f568a9c3b49e18a17fc3d59657bbe0.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Chris Friesen <chris.friesen@windriver.com>
Date: Wed, 11 Jan 2017 13:38:37 -0500
Subject: [PATCH 13/26] Enable building kernel with CONFIG_BLK_DEV_NBD
By default, the CentOS 7.3 kernel will fail to build if
CONFIG_BLK_DEV_NBD is enabled, either as module or builtin.
The issue seems to be due to the use of REQ_TYPE_SPECIAL in the
NBD code. Switching it to use REQ_TYPE_DRV_PRIV instead makes the
problem go away.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/block/nbd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index a40a4f0..e0c6b62 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -616,7 +616,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
fsync_bdev(bdev);
mutex_lock(&nbd->tx_lock);
blk_rq_init(NULL, &sreq);
- sreq.cmd_type = REQ_TYPE_SPECIAL;
+ sreq.cmd_type = REQ_TYPE_DRV_PRIV;
nbd_cmd(&sreq) = NBD_CMD_DISC;
/* Check again after getting mutex back. */
--
1.8.3.1

114
kernel-std/centos/patches/Fix-cacheinfo-compilation-issues-for-3.10.patch
View File

@@ -1,114 +0,0 @@
From f49689ec7d42e30014e2aebd57bff050b187ef22 Mon Sep 17 00:00:00 2001
Message-Id: <f49689ec7d42e30014e2aebd57bff050b187ef22.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Alex Kozyrev <alex.kozyrev@windriver.com>
Date: Wed, 19 Jul 2017 02:25:15 -0500
Subject: [PATCH 17/26] Fix cacheinfo compilation issues for 3.10
Had to revert commit 7cc277b489b4fe91f42eb596b282879c2d13152e:
"Install the callbacks via the state machine and let the core invoke
the callbacks on the already online CPUs. No functional change."
There is no hotplug state machine in 3.10 kernel.
Also implemented cpumap_print_to_pagebuf() function in place.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/base/cacheinfo.c | 65 ++++++++++++++++++++++++++++++++++++------------
1 file changed, 49 insertions(+), 16 deletions(-)
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index eb3af27..c924f7e 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -383,7 +383,12 @@ static ssize_t shared_cpumap_show_func(struct device *dev, bool list, char *buf)
struct cacheinfo *this_leaf = dev_get_drvdata(dev);
const struct cpumask *mask = &this_leaf->shared_cpu_map;
- return cpumap_print_to_pagebuf(list, buf, mask);
+ int len = list?
+ cpulist_scnprintf(buf, PAGE_SIZE-2, mask) :
+ cpumask_scnprintf(buf, PAGE_SIZE-2, mask);
+ buf[len++] = '\n';
+ buf[len] = '\0';
+ return len;
}
static ssize_t shared_cpu_map_show(struct device *dev,
@@ -633,30 +638,58 @@ err:
return rc;
}
-static int cacheinfo_cpu_online(unsigned int cpu)
+static void cache_remove_dev(unsigned int cpu)
{
- int rc = detect_cache_attributes(cpu);
+ if (!cpumask_test_cpu(cpu, &cache_dev_map))
+ return;
+ cpumask_clear_cpu(cpu, &cache_dev_map);
- if (rc)
- return rc;
- rc = cache_add_dev(cpu);
- if (rc)
- free_cache_attributes(cpu);
- return rc;
+ cpu_cache_sysfs_exit(cpu);
}
-static int cacheinfo_cpu_pre_down(unsigned int cpu)
+static int cacheinfo_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
{
- if (cpumask_test_and_clear_cpu(cpu, &cache_dev_map))
- cpu_cache_sysfs_exit(cpu);
+ unsigned int cpu = (unsigned long)hcpu;
+ int rc = 0;
- free_cache_attributes(cpu);
- return 0;
+ switch (action & ~CPU_TASKS_FROZEN) {
+ case CPU_ONLINE:
+ rc = detect_cache_attributes(cpu);
+ if (!rc)
+ rc = cache_add_dev(cpu);
+ break;
+ case CPU_DEAD:
+ cache_remove_dev(cpu);
+ if (per_cpu_cacheinfo(cpu))
+ free_cache_attributes(cpu);
+ break;
+ }
+ return notifier_from_errno(rc);
}
static int __init cacheinfo_sysfs_init(void)
{
- return cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "base/cacheinfo:online",
- cacheinfo_cpu_online, cacheinfo_cpu_pre_down);
+ int cpu, rc = 0;
+
+ cpu_notifier_register_begin();
+
+ for_each_online_cpu(cpu) {
+ rc = detect_cache_attributes(cpu);
+ if (rc)
+ goto out;
+ rc = cache_add_dev(cpu);
+ if (rc) {
+ free_cache_attributes(cpu);
+ pr_err("error populating cacheinfo..cpu%d\n", cpu);
+ goto out;
+ }
+ }
+ __hotcpu_notifier(cacheinfo_cpu_callback, 0);
+
+out:
+ cpu_notifier_register_done();
+ return rc;
}
+
device_initcall(cacheinfo_sysfs_init);
--
1.8.3.1

68
kernel-std/centos/patches/Fix-compile-issue-when-transparent-hugepages-are-off.patch
View File

@@ -1,68 +0,0 @@
From b6ceef1c915827b50ce3f76da4dc47f3eb768b44 Mon Sep 17 00:00:00 2001
Message-Id: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Jim Somerville <Jim.Somerville@windriver.com>
Date: Thu, 15 Dec 2016 14:27:48 -0500
Subject: [PATCH 01/26] Fix compile issue when transparent hugepages are off
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Robin Lu <bin1.lu@intel.com>
---
drivers/gpu/drm/i915/i915_gemfs.c | 4 ++--
fs/proc/task_mmu.c | 2 ++
mm/swap.c | 2 ++
3 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gemfs.c b/drivers/gpu/drm/i915/i915_gemfs.c
index 888b7d3f..efe915c7 100644
--- a/drivers/gpu/drm/i915/i915_gemfs.c
+++ b/drivers/gpu/drm/i915/i915_gemfs.c
@@ -49,7 +49,7 @@ int i915_gemfs_init(struct drm_i915_private *i915)
* memory pressure shmem should split any huge-pages which can be
* shrunk.
*/
-
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
if (has_transparent_hugepage()) {
struct super_block *sb = gemfs->mnt_sb;
/* FIXME: Disabled until we get W/A for read BW issue. */
@@ -63,7 +63,7 @@ int i915_gemfs_init(struct drm_i915_private *i915)
return err;
}
}
-
+#endif
i915->mm.gemfs = gemfs;
return 0;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index e27a1d42..e8a8ba9d 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1116,7 +1116,9 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end,
{
struct vm_area_struct *vma;
struct pagemapread *pm = walk->private;
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
spinlock_t *ptl;
+#endif
pte_t *pte;
int err = 0;
diff --git a/mm/swap.c b/mm/swap.c
index 0982a35..6dcf38c 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -1043,8 +1043,10 @@ void release_pages(struct page **pages, int nr, bool cold)
if (!put_page_testzero(page))
continue;
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
VM_BUG_ON_PAGE(check_mmu_gather &&
trans_huge_mmu_gather_count(page), page);
+#endif
if (PageLRU(page)) {
if (!was_thp)
--
1.8.3.1

8
kernel-std/centos/patches/Make-kernel-start-eth-devices-at-offset.patch
View File

@@ -11,15 +11,17 @@ start naming its "ethX" devices at eth1000 instead of eth0. This
will let us rename to a range starting at eth0.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
net/core/dev.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/net/core/dev.c b/net/core/dev.c
index 92d6c59..238c90d 100644
index b6f9647..b424353 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1090,6 +1090,12 @@ static int __dev_alloc_name(struct net *net, const char *name, char *buf)
@@ -1096,6 +1096,12 @@ static int __dev_alloc_name(struct net *net, const char *name, char *buf)
set_bit(i, inuse);
}
@@ -33,5 +35,5 @@ index 92d6c59..238c90d 100644
free_page((unsigned long) inuse);
}
--
1.8.3.1
2.18.1

141
kernel-std/centos/patches/Notification-of-death-of-arbitrary-processes.patch
View File

@@ -18,30 +18,34 @@ This is exposed to userspace via the prctl() call with the
PR_DO_NOTIFY_TASK_STATE option.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
include/linux/init_task.h | 9 ++
include/linux/sched.h | 6 ++
include/uapi/linux/prctl.h | 18 ++++
include/linux/sched.h | 6 +
include/uapi/linux/prctl.h | 18 +++
init/Kconfig | 15 +++
init/init_task.c | 1 +
kernel/Makefile | 1 +
kernel/death_notify.c | 227 +++++++++++++++++++++++++++++++++++++++++++++
kernel/death_notify.h | 45 +++++++++
kernel/exit.c | 6 ++
kernel/death_notify.c | 226 +++++++++++++++++++++++++++++++++++++
kernel/death_notify.h | 46 ++++++++
kernel/exit.c | 6 +
kernel/fork.c | 4 +
kernel/signal.c | 11 +++
kernel/sys.c | 9 ++
11 files changed, 351 insertions(+)
kernel/signal.c | 11 ++
kernel/sys.c | 8 ++
12 files changed, 351 insertions(+)
create mode 100644 kernel/death_notify.c
create mode 100644 kernel/death_notify.h
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index a05294b..cfb7197 100644
index a454b8a..08ae031 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -77,6 +77,14 @@ extern struct nsproxy init_nsproxy;
.signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \
}
@@ -24,6 +24,15 @@
extern struct files_struct init_files;
extern struct fs_struct init_fs;
extern struct nsproxy init_nsproxy;
+
+#ifdef CONFIG_SIGEXIT
+#define INIT_SIGEXIT(tsk) \
+ .notify = LIST_HEAD_INIT(tsk.notify), \
@@ -51,40 +55,32 @@ index a05294b..cfb7197 100644
+#endif
+
extern struct group_info init_groups;
extern struct cred init_cred;
#define INIT_STRUCT_PID { \
@@ -224,6 +232,7 @@ extern struct task_group root_task_group;
.alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \
.journal_info = NULL, \
.cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
+ INIT_SIGEXIT(tsk) \
.pi_lock = __RAW_SPIN_LOCK_UNLOCKED(tsk.pi_lock), \
.timer_slack_ns = 50000, /* 50 usec default slack */ \
.pids = { \
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d184652..ba6ae5c 100644
index bb3e390..6b954a5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1653,6 +1653,12 @@ struct task_struct {
short il_next;
short pref_node_fork;
@@ -1011,6 +1011,12 @@ struct task_struct {
short il_prev;
short pref_node_fork;
#endif
+#ifdef CONFIG_SIGEXIT
+ /* list of processes to notify on death */
+ struct list_head notify;
+ struct list_head notify;
+ /* list of outstanding monitor requests */
+ struct list_head monitor;
+ struct list_head monitor;
+#endif
#ifdef CONFIG_NUMA_BALANCING
int numa_scan_seq;
unsigned int numa_scan_period;
int numa_scan_seq;
unsigned int numa_scan_period;
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index a817b5c..2cf7776 100644
index b17201e..05a4756 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -55,6 +55,24 @@
#define PR_SET_NAME 15 /* Set process name */
#define PR_GET_NAME 16 /* Get process name */
@@ -63,6 +63,24 @@
# define PR_ENDIAN_LITTLE 1 /* True little endian mode */
# define PR_ENDIAN_PPC_LITTLE 2 /* "PowerPC" pseudo little endian */
+#ifdef CONFIG_SIGEXIT
+#define PR_DO_NOTIFY_TASK_STATE 17 /* Set/get notification for task
@@ -104,14 +100,14 @@ index a817b5c..2cf7776 100644
+};
+#endif
+
/* Get/set process endian */
#define PR_GET_ENDIAN 19
#define PR_SET_ENDIAN 20
/* Get/set process seccomp mode */
#define PR_GET_SECCOMP 21
#define PR_SET_SECCOMP 22
diff --git a/init/Kconfig b/init/Kconfig
index 6ec689c..550cea4 100644
index 9c529c7..6f53e81 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1580,6 +1580,21 @@ config VM_EVENT_COUNTERS
@@ -1547,6 +1547,21 @@ config VM_EVENT_COUNTERS
on EXPERT systems. /proc/vmstat will only show page counts
if VM event counters are disabled.
@@ -133,11 +129,23 @@ index 6ec689c..550cea4 100644
config SLUB_DEBUG
default y
bool "Enable SLUB debugging support" if EXPERT
diff --git a/init/init_task.c b/init/init_task.c
index 74f60ba..c468eeb 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -109,6 +109,7 @@ struct task_struct init_task
.alloc_lock = __SPIN_LOCK_UNLOCKED(init_task.alloc_lock),
.journal_info = NULL,
INIT_CPU_TIMERS(init_task)
+ INIT_SIGEXIT(tsk)
.pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock),
.timer_slack_ns = 50000, /* 50 usec default slack */
.pids = {
diff --git a/kernel/Makefile b/kernel/Makefile
index 2fb90fa..44a82c1 100644
index aebf6a8..2669df3 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -113,6 +113,7 @@ obj-$(CONFIG_TRACEPOINTS) += trace/
@@ -104,6 +104,7 @@ obj-$(CONFIG_TRACEPOINTS) += trace/
obj-$(CONFIG_IRQ_WORK) += irq_work.o
obj-$(CONFIG_CPU_PM) += cpu_pm.o
obj-$(CONFIG_BPF) += bpf/
@@ -147,10 +155,10 @@ index 2fb90fa..44a82c1 100644
diff --git a/kernel/death_notify.c b/kernel/death_notify.c
new file mode 100644
index 0000000..889b929
index 0000000..dc4fc95
--- /dev/null
+++ b/kernel/death_notify.c
@@ -0,0 +1,227 @@
@@ -0,0 +1,226 @@
+/*
+ * kernel/death_notify.c, Process death notification support
+ *
@@ -176,7 +184,6 @@ index 0000000..889b929
+#include <linux/slab.h>
+#include <linux/prctl.h>
+#include <linux/uaccess.h>
+
+#include "death_notify.h"
+
+static void unlink_status_notifier(struct signotifier *n)
@@ -224,7 +231,6 @@ index 0000000..889b929
+ list_add_tail(&node->monitor_list, &current->monitor);
+}
+
+
+/* Returns 0 if arguments are valid, 1 if they are not. */
+static int invalid_args(struct task_state_notify_info *args)
+{
@@ -378,12 +384,13 @@ index 0000000..889b929
+out:
+ return err;
+}
+
diff --git a/kernel/death_notify.h b/kernel/death_notify.h
new file mode 100644
index 0000000..b2b8e8c
index 0000000..1609cb4
--- /dev/null
+++ b/kernel/death_notify.h
@@ -0,0 +1,45 @@
@@ -0,0 +1,46 @@
+/*
+ * kernel/death_notify.h, Process death notification support
+ *
@@ -429,11 +436,12 @@ index 0000000..b2b8e8c
+
+#endif /* CONFIG_SIGEXIT */
+#endif
+
diff --git a/kernel/exit.c b/kernel/exit.c
index 1afa799..a2ea26b 100644
index deaa53a..fd0729f 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -59,6 +59,9 @@
@@ -67,6 +67,9 @@
#include <asm/unistd.h>
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
@@ -441,12 +449,12 @@ index 1afa799..a2ea26b 100644
+#include "death_notify.h"
+#endif
static void exit_mm(struct task_struct * tsk);
@@ -184,6 +187,9 @@ repeat:
static void __unhash_process(struct task_struct *p, bool group_dead)
{
@@ -195,6 +198,9 @@ repeat:
proc_flush_task(p);
tasklist_write_lock_irq();
write_lock_irq(&tasklist_lock);
+#ifdef CONFIG_SIGEXIT
+ release_notify_others(p);
+#endif
@@ -454,10 +462,10 @@ index 1afa799..a2ea26b 100644
__exit_signal(p);
diff --git a/kernel/fork.c b/kernel/fork.c
index c75422b..30dee92 100644
index 3311231..04dca7c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1477,6 +1477,10 @@ static struct task_struct *copy_process(unsigned long clone_flags,
@@ -1796,6 +1796,10 @@ static __latent_entropy struct task_struct *copy_process(
p->sequential_io = 0;
p->sequential_io_avg = 0;
#endif
@@ -469,10 +477,10 @@ index c75422b..30dee92 100644
/* Perform scheduler related setup. Assign this task to a CPU. */
retval = sched_fork(clone_flags, p);
diff --git a/kernel/signal.c b/kernel/signal.c
index 35133a7..3f72ac0 100644
index 8d8a940..ad65719 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -46,6 +46,9 @@
@@ -51,6 +51,9 @@
#include <asm/siginfo.h>
#include <asm/cacheflush.h>
#include "audit.h" /* audit_signal_info() */
@@ -482,7 +490,7 @@ index 35133a7..3f72ac0 100644
/*
* SLAB caches for signal bits.
@@ -1740,6 +1743,10 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
@@ -1803,6 +1806,10 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
__wake_up_parent(tsk, tsk->parent);
spin_unlock_irqrestore(&psig->siglock, flags);
@@ -493,7 +501,7 @@ index 35133a7..3f72ac0 100644
return autoreap;
}
@@ -1811,6 +1818,10 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
@@ -1875,6 +1882,10 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
*/
__wake_up_parent(tsk, parent);
spin_unlock_irqrestore(&sighand->siglock, flags);
@@ -505,21 +513,20 @@ index 35133a7..3f72ac0 100644
static inline int may_ptrace_stop(void)
diff --git a/kernel/sys.c b/kernel/sys.c
index 1fbf388..0bc6b02 100644
index 38509dc..11e5355 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -67,6 +67,10 @@
/* Hardening for Spectre-v1 */
@@ -75,6 +75,9 @@
#include <linux/nospec.h>
#include "uid16.h"
+#ifdef CONFIG_SIGEXIT
+#include "death_notify.h"
+#endif
+
#ifndef SET_UNALIGN_CTL
# define SET_UNALIGN_CTL(a,b) (-EINVAL)
#endif
@@ -2478,6 +2482,11 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
# define SET_UNALIGN_CTL(a, b) (-EINVAL)
@@ -2409,6 +2412,11 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
else
error = PR_MCE_KILL_DEFAULT;
break;
@@ -532,5 +539,5 @@ index 1fbf388..0bc6b02 100644
error = prctl_set_mm(arg2, arg3, arg4, arg5);
break;
--
2.7.4
2.18.1

12
kernel-std/centos/patches/PCI-Add-ACS-quirk-for-Intel-Fortville-NICs.patch
View File

@@ -10,12 +10,14 @@ Use quirks to determine isolation for now until a later kernel can
properly read the Fortville ACS capabilities.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
drivers/pci/quirks.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 5614e3f..4a0bfed 100644
index 3db73ce..45c4e4d 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4401,6 +4401,10 @@ static const struct pci_dev_acs_enabled {
@@ -26,9 +28,9 @@ index 5614e3f..4a0bfed 100644
+ { PCI_VENDOR_ID_INTEL, 0x1572, pci_quirk_mf_endpoint_acs },
+ { PCI_VENDOR_ID_INTEL, 0x1586, pci_quirk_mf_endpoint_acs },
+ { PCI_VENDOR_ID_INTEL, 0x1583, pci_quirk_mf_endpoint_acs },
/* Intel PCH root ports */
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_spt_pch_acs },
/* QCOM QDF2xxx root ports */
{ PCI_VENDOR_ID_QCOM, 0x0400, pci_quirk_qcom_rp_acs },
{ PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
--
1.8.3.1
2.18.1

2125
kernel-std/centos/patches/Porting-Cacheinfo-from-Kernel-4.10.17.patch
View File

File diff suppressed because it is too large Load Diff

271
kernel-std/centos/patches/US101216-IMA-support-in-Titanium-kernel.patch
View File

@@ -18,70 +18,42 @@ definitions on module deinit
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Robin Lu <bin1.lu@intel.com>
---
fs/namei.c | 2 +-
fs/nfsd/vfs.c | 2 +-
fs/xattr.c | 1 +
include/linux/fs.h | 15 +-----
include/linux/ima.h | 77 ++++++--------------------
include/linux/integrity.h | 22 +++-----
security/security.c | 111 +++++++++++++++++++++++++++++++++++++-
7 files changed, 140 insertions(+), 90 deletions(-)
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
fs/xattr.c | 1 +
include/linux/fs.h | 15 +----
security/security.c | 137 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 140 insertions(+), 13 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c
index 9f90b63..bf91ea0 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3243,7 +3243,7 @@ opened:
error = open_check_o_direct(file);
if (error)
goto exit_fput;
- error = ima_file_check(file, op->acc_mode);
+ error = ima_file_check(file, op->acc_mode, *opened);
if (error)
goto exit_fput;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 00e98c3..cb9250e 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -898,7 +898,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
goto out_nfserr;
}
- host_err = ima_file_check(file, may_flags);
+ host_err = ima_file_check(file, may_flags, 0);
if (host_err) {
fput(file);
goto out_nfserr;
diff --git a/fs/xattr.c b/fs/xattr.c
index e540aca..cc307ec 100644
index 0d6a6a4..7ce4701 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -208,6 +208,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
@@ -295,6 +295,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
*xattr_value = value;
return error;
}
+EXPORT_SYMBOL_GPL(vfs_getxattr_alloc);
/* Compare an extended attribute value with the given value */
int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
ssize_t
__vfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index eb6f994..2dbaf80 100644
index c603897..118e7cd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -681,9 +681,8 @@ struct inode {
struct fsnotify_mark_connector __rcu *i_fsnotify_marks)
#endif
-#if defined(CONFIG_IMA) && defined(CONFIG_X86_64)
@@ -669,9 +669,8 @@ struct inode {
atomic_t i_count;
atomic_t i_dio_count;
atomic_t i_writecount;
-#ifdef CONFIG_IMA
atomic_t i_readcount; /* struct files open RO */
-#endif
+
void *i_private; /* fs or device private pointer */
};
@@ -2852,7 +2851,6 @@ static inline bool inode_is_open_for_write(const struct inode *inode)
const struct file_operations *i_fop; /* former ->i_op->default_file_ops */
struct file_lock_context *i_flctx;
struct address_space i_data;
@@ -2867,7 +2866,6 @@ static inline bool inode_is_open_for_write(const struct inode *inode)
return atomic_read(&inode->i_writecount) > 0;
}
@@ -89,7 +61,7 @@ index eb6f994..2dbaf80 100644
static inline void i_readcount_dec(struct inode *inode)
{
BUG_ON(!atomic_read(&inode->i_readcount));
@@ -2862,16 +2860,7 @@ static inline void i_readcount_inc(struct inode *inode)
@@ -2877,16 +2875,7 @@ static inline void i_readcount_inc(struct inode *inode)
{
atomic_inc(&inode->i_readcount);
}
@@ -106,131 +78,12 @@ index eb6f994..2dbaf80 100644
+
extern int do_pipe_flags(int *, int);
extern int kernel_read(struct file *, loff_t, char *, unsigned long);
diff --git a/include/linux/ima.h b/include/linux/ima.h
index 1b7f268..9fee45c 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -13,64 +13,21 @@
#include <linux/fs.h>
struct linux_binprm;
-#ifdef CONFIG_IMA
-extern int ima_bprm_check(struct linux_binprm *bprm);
-extern int ima_file_check(struct file *file, int mask);
-extern void ima_file_free(struct file *file);
-extern int ima_file_mmap(struct file *file, unsigned long prot);
-extern int ima_module_check(struct file *file);
-
-#else
-static inline int ima_bprm_check(struct linux_binprm *bprm)
-{
- return 0;
-}
-
-static inline int ima_file_check(struct file *file, int mask)
-{
- return 0;
-}
-
-static inline void ima_file_free(struct file *file)
-{
- return;
-}
-
-static inline int ima_file_mmap(struct file *file, unsigned long prot)
-{
- return 0;
-}
-
-static inline int ima_module_check(struct file *file)
-{
- return 0;
-}
-
-#endif /* CONFIG_IMA */
-
-#ifdef CONFIG_IMA_APPRAISE
-extern void ima_inode_post_setattr(struct dentry *dentry);
-extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
+/*
+ * The IMA Kernel module has to redefine these symbols so that
+ * the kernel module can link a dynamic function, as a hook into
+ * the Kernel FS calls (which use these)
+ */
+/* ifdef CONFIG_IMA */
+extern int (*ima_bprm_check)(struct linux_binprm *bprm);
+extern int (*ima_file_check)(struct file *file, int mask, int opened);
+extern void (*ima_file_free)(struct file *file);
+extern int (*ima_file_mmap)(struct file *file, unsigned long prot);
+extern int (*ima_module_check)(struct file *file);
+
+/* ifdef CONFIG_IMA_APPRAISE */
+extern void (*ima_inode_post_setattr)(struct dentry *dentry);
+extern int (*ima_inode_setxattr)(struct dentry *dentry, const char *xattr_name,
const void *xattr_value, size_t xattr_value_len);
-extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name);
-#else
-static inline void ima_inode_post_setattr(struct dentry *dentry)
-{
- return;
-}
-
-static inline int ima_inode_setxattr(struct dentry *dentry,
- const char *xattr_name,
- const void *xattr_value,
- size_t xattr_value_len)
-{
- return 0;
-}
-
-static inline int ima_inode_removexattr(struct dentry *dentry,
- const char *xattr_name)
-{
- return 0;
-}
-#endif /* CONFIG_IMA_APPRAISE */
-#endif /* _LINUX_IMA_H */
+extern int (*ima_inode_removexattr)(struct dentry *dentry, const char *xattr_name);
+#endif
diff --git a/include/linux/integrity.h b/include/linux/integrity.h
index 83222ce..a5040b6 100644
--- a/include/linux/integrity.h
+++ b/include/linux/integrity.h
@@ -21,20 +21,14 @@ enum integrity_status {
};
/* List of EVM protected security xattrs */
-#ifdef CONFIG_INTEGRITY
-extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
-extern void integrity_inode_free(struct inode *inode);
+/*
+ * The Integrity Kernel module has to redefine these symbols so that
+ * the kernel module can link a dynamic function, as a hook into
+ * the Kernel Security subsystem (which use these)
+ */
-#else
-static inline struct integrity_iint_cache *
- integrity_inode_get(struct inode *inode)
-{
- return NULL;
-}
+/* #ifdef CONFIG_INTEGRITY */
+extern struct integrity_iint_cache *(*integrity_inode_get)(struct inode *inode);
+extern void (*integrity_inode_free)(struct inode *inode);
-static inline void integrity_inode_free(struct inode *inode)
-{
- return;
-}
-#endif /* CONFIG_INTEGRITY */
#endif /* _LINUX_INTEGRITY_H */
#define __kernel_read_file_id(id) \
diff --git a/security/security.c b/security/security.c
index f069482..646a0e3 100644
index 5dce670..838a9ef 100644
--- a/security/security.c
+++ b/security/security.c
@@ -161,6 +161,110 @@ EXPORT_SYMBOL(unregister_lsm_notifier);
@@ -227,6 +227,143 @@ EXPORT_SYMBOL(unregister_lsm_notifier);
/* Security operations */
@@ -251,13 +104,20 @@ index f069482..646a0e3 100644
+ return;
+}
+
+static inline void integrity_load_keys_kmod(void)
+{
+}
+
+struct integrity_iint_cache *
+ (*integrity_inode_get)(struct inode *) = &integrity_inode_get_kmod;
+void
+ (*integrity_inode_free)(struct inode*) = &integrity_inode_free_kmod;
+void
+ (*integrity_load_keys)(void) = &integrity_load_keys_kmod;
+
+EXPORT_SYMBOL_GPL(integrity_inode_get);
+EXPORT_SYMBOL_GPL(integrity_inode_free);
+EXPORT_SYMBOL_GPL(integrity_load_keys);
+#endif
+
+#ifndef CONFIG_IMA
@@ -281,11 +141,22 @@ index f069482..646a0e3 100644
+ return 0;
+}
+
+static int ima_module_check_kmod(struct file *file)
+static int ima_read_file_kmod(struct file *file, enum kernel_read_file_id id)
+{
+ return 0;
+}
+
+static int ima_post_read_file_kmod(struct file *file, void *buf, loff_t size,
+ enum kernel_read_file_id id)
+{
+ return 0;
+}
+
+static void ima_post_path_mknod_kmod(struct dentry *dentry)
+{
+ return;
+}
+
+int
+ (*ima_bprm_check)(struct linux_binprm *) = &ima_bprm_check_kmod;
+int
@@ -295,16 +166,28 @@ index f069482..646a0e3 100644
+int
+ (*ima_file_mmap)(struct file*, unsigned long) = &ima_file_mmap_kmod;
+int
+ (*ima_module_check)(struct file *) = &ima_module_check_kmod;
+ (*ima_read_file)(struct file *file, enum kernel_read_file_id id) = &ima_read_file_kmod;
+int
+ (*ima_post_read_file)(struct file *file, void *buf, loff_t size,
+ enum kernel_read_file_id id) = &ima_post_read_file_kmod;
+void
+ (*ima_post_path_mknod)(struct dentry *dentry) = &ima_post_path_mknod_kmod;
+
+EXPORT_SYMBOL_GPL(ima_bprm_check);
+EXPORT_SYMBOL_GPL(ima_file_check);
+EXPORT_SYMBOL_GPL(ima_file_free);
+EXPORT_SYMBOL_GPL(ima_file_mmap);
+EXPORT_SYMBOL_GPL(ima_module_check);
+EXPORT_SYMBOL_GPL(ima_read_file);
+EXPORT_SYMBOL_GPL(ima_post_read_file);
+EXPORT_SYMBOL_GPL(ima_post_path_mknod);
+#endif
+
+#ifndef CONFIG_IMA_APPRAISE
+static bool is_ima_appraise_enabled_kmod(void)
+{
+ return 0;
+}
+
+static void ima_inode_post_setattr_kmod(struct dentry *dentry)
+{
+ return;
@@ -324,6 +207,8 @@ index f069482..646a0e3 100644
+ return 0;
+}
+
+bool
+ (*is_ima_appraise_enabled)(void) = &is_ima_appraise_enabled_kmod;
+void
+ (*ima_inode_post_setattr)(struct dentry *) = &ima_inode_post_setattr_kmod;
+int
@@ -333,43 +218,15 @@ index f069482..646a0e3 100644
+ (*ima_inode_removexattr)(struct dentry *,
+ const char *) = &ima_inode_removexattr_kmod;
+
+EXPORT_SYMBOL_GPL(is_ima_appraise_enabled);
+EXPORT_SYMBOL_GPL(ima_inode_post_setattr);
+EXPORT_SYMBOL_GPL(ima_inode_setxattr);
+EXPORT_SYMBOL_GPL(ima_inode_removexattr);
+#endif
+
int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
int security_binder_set_context_mgr(struct task_struct *mgr)
{
#ifdef CONFIG_SECURITY_YAMA_STACKED
@@ -718,8 +822,11 @@ EXPORT_SYMBOL(security_inode_listsecurity);
void security_inode_getsecid(struct inode *inode, u32 *secid)
{
- security_ops->inode_getsecid(inode, secid);
+ if (unlikely(IS_PRIVATE(inode)))
+ return;
+ security_ops->inode_getsecid(inode, secid);
}
+EXPORT_SYMBOL_GPL(security_inode_getsecid);
int security_inode_copy_up(struct dentry *src, struct cred **new)
{
@@ -1528,6 +1635,7 @@ int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
{
return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
}
+EXPORT_SYMBOL_GPL(security_audit_rule_init);
int security_audit_rule_known(struct audit_krule *krule)
{
@@ -1544,6 +1652,7 @@ int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
{
return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
}
+EXPORT_SYMBOL_GPL(security_audit_rule_match);
#endif /* CONFIG_AUDIT */
return call_int_hook(binder_set_context_mgr, 0, mgr);
--
1.8.3.1
2.18.1

154
kernel-std/centos/patches/US103091-IMA-System-Configuration.patch
View File

@@ -18,54 +18,44 @@ IMA public key as a compiled data blob, similar to how the Kernel loads
trusted X509 keys into the system truststore (.system_keyring)
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
.gitignore | 1 +
include/keys/system_keyring.h | 2 ++
kernel/Makefile | 42 ++++++++++++++++++++--
kernel/ima_certificate.S | 20 +++++++++++
kernel/system_keyring.c | 82 +++++++++++++++++++++++++++++++++++++++++++
5 files changed, 145 insertions(+), 2 deletions(-)
create mode 100644 kernel/ima_certificate.S
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
diff --git a/.gitignore b/.gitignore
index f73f35f..7148219 100644
--- a/.gitignore
+++ b/.gitignore
@@ -106,3 +106,4 @@ localversion
---
certs/.gitignore | 1 +
certs/Makefile | 45 +++++++++++++++++++-
certs/ima_certificate.S | 20 +++++++++
certs/system_keyring.c | 80 +++++++++++++++++++++++++++++++++++
include/keys/system_keyring.h | 2 +
5 files changed, 146 insertions(+), 2 deletions(-)
create mode 100644 certs/ima_certificate.S
diff --git a/certs/.gitignore b/certs/.gitignore
index f51aea4..3396b4a 100644
--- a/certs/.gitignore
+++ b/certs/.gitignore
@@ -2,3 +2,4 @@
# Generated files
#
x509_certificate_list
+ima_x509_certificate
diff --git a/certs/Makefile b/certs/Makefile
index 5d0999b..3e868ea 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -3,7 +3,7 @@
# Makefile for the linux kernel signature checking certificates.
#
# Red Hat key security
kernel/x509_certificate_list
+kernel/ima_x509_certificate
diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
index 0e49b3c..6b2da90 100644
--- a/include/keys/system_keyring.h
+++ b/include/keys/system_keyring.h
@@ -34,4 +34,6 @@ static inline struct key *get_system_trusted_keyring(void)
#endif /* CONFIG_SYSTEM_TRUSTED_KEYRING */
+extern struct key *ima_keyring;
+
#endif /* _KEYS_SYSTEM_KEYRING_H */
diff --git a/kernel/Makefile b/kernel/Makefile
index 44a82c1..000b9a8 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -57,7 +57,7 @@ obj-$(CONFIG_QUEUED_SPINLOCKS) += qspinlock.o
obj-$(CONFIG_QUEUED_RWLOCKS) += qrwlock.o qrwlock_gen.o
obj-$(CONFIG_LOCK_SPIN_ON_OWNER) += osq_lock.o
obj-$(CONFIG_UID16) += uid16.o
-obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o
+obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o ima_certificate.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_MODULE_SIG) += module_signing.o
obj-$(CONFIG_MODULE_SIG_UEFI) += modsign_uefi.o
@@ -199,7 +199,45 @@ targets += $(obj)/.x509.list
$(obj)/.x509.list:
@echo $(X509_CERTIFICATES) >$@
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o
ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),"")
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o
@@ -29,7 +29,48 @@ $(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREF
$(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))
endif # CONFIG_SYSTEM_TRUSTED_KEYRING
-clean-files := x509_certificate_list .x509.list
+
+###############################################################################
+#
+# We will roll in the IMA X.509 certificate and pull it in the kernel
@@ -89,14 +79,18 @@ index 44a82c1..000b9a8 100644
+endif
+endif
+
+kernel/ima_certificate.o: $(obj)/ima_x509_certificate
+# GCC doesn't include .incbin files in -MD generated dependencies (PR#66871)
+$(obj)/ima_certificate.o: $(obj)/ima_x509_certificate
+
+quiet_cmd_imacert = CERTS $@
+ cmd_imacert = cat $(IMA_X509_CERTIFICATE) >$@ $(foreach IMA_X509,$(IMA_X509_CERTIFICATE),; echo " - Including cert $(IMA_X509)")
+# Cope with signing_key.x509 existing in $(srctree) not $(objtree)
+AFLAGS_ima_certificate.o := -I$(IMA_X509_CERTIFICATE)
+
+targets += $(obj)/ima_x509_certificate
+$(obj)/ima_x509_certificate: $(IMA_X509_CERTIFICATE) $(obj)/.x509.ima
+ $(call if_changed,imacert)
+quiet_cmd_extract_certs = EXTRACT_CERTS $(patsubst "%",%,$(2))
+ cmd_extract_certs = scripts/extract-cert $(2) $@ || ( rm $@; exit 1)
+
+targets += ima_x509_certificate
+$(obj)/ima_x509_certificate: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE
+ $(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))
+
+targets += $(obj)/.x509.ima
+$(obj)/.x509.ima:
@@ -104,14 +98,14 @@ index 44a82c1..000b9a8 100644
+
+
+clean-files := x509_certificate_list .x509.list ima_x509_certificate .x509.ima
endif
ifeq ($(CONFIG_MODULE_SIG),y)
diff --git a/kernel/ima_certificate.S b/kernel/ima_certificate.S
###############################################################################
diff --git a/certs/ima_certificate.S b/certs/ima_certificate.S
new file mode 100644
index 0000000..0c665dd
index 0000000..f163630
--- /dev/null
+++ b/kernel/ima_certificate.S
+++ b/certs/ima_certificate.S
@@ -0,0 +1,20 @@
+#include <linux/export.h>
+#include <linux/init.h>
@@ -122,7 +116,7 @@ index 0000000..0c665dd
+ .globl VMLINUX_SYMBOL(ima_system_certificate)
+VMLINUX_SYMBOL(ima_system_certificate):
+__cert_list_start:
+ .incbin "kernel/ima_x509_certificate"
+ .incbin "certs/ima_x509_certificate"
+__cert_list_end:
+
+ .align 8
@@ -133,13 +127,13 @@ index 0000000..0c665dd
+#else
+ .long __cert_list_end - __cert_list_start
+#endif
diff --git a/kernel/system_keyring.c b/kernel/system_keyring.c
index c15e93f..92beb15 100644
--- a/kernel/system_keyring.c
+++ b/kernel/system_keyring.c
@@ -23,10 +23,15 @@ EXPORT_SYMBOL_GPL(system_trusted_keyring);
#ifdef CONFIG_SYSTEM_BLACKLIST_KEYRING
struct key *system_blacklist_keyring;
diff --git a/certs/system_keyring.c b/certs/system_keyring.c
index 19bd050..02d7a8b 100644
--- a/certs/system_keyring.c
+++ b/certs/system_keyring.c
@@ -27,10 +27,15 @@ static struct key *secondary_trusted_keys;
#ifdef CONFIG_INTEGRITY_PLATFORM_KEYRING
static struct key *platform_trusted_keys;
#endif
+struct key *ima_keyring;
+EXPORT_SYMBOL_GPL(ima_keyring);
@@ -150,12 +144,12 @@ index c15e93f..92beb15 100644
+extern __initconst const u8 ima_system_certificate[];
+extern __initconst const unsigned long ima_system_certificate_size;
+
/*
* Load the compiled-in keys
*/
@@ -57,6 +62,27 @@ static __init int system_trusted_keyring_init(void)
set_bit(KEY_FLAG_TRUSTED_ONLY, &system_blacklist_keyring->flags);
/**
* restrict_link_to_builtin_trusted - Restrict keyring addition by built in CA
*
@@ -126,6 +131,25 @@ static __init int system_trusted_keyring_init(void)
if (key_link(secondary_trusted_keys, builtin_trusted_keys) < 0)
panic("Can't link trusted keyrings\n");
#endif
+ /* Normally (if trusted integrity keyring is disabled), the _ima
+ * keyring needs to be created by user space but that has the
@@ -173,19 +167,16 @@ index c15e93f..92beb15 100644
+ current_cred(),
+ ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+ KEY_USR_VIEW | KEY_USR_READ | KEY_USR_SEARCH),
+ KEY_ALLOC_NOT_IN_QUOTA, NULL);
+ KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
+ if (IS_ERR(ima_keyring))
+ panic("Can't allocate system IMA keyring\n");
+
+ set_bit(KEY_FLAG_TRUSTED_ONLY, &ima_keyring->flags);
return 0;
}
@@ -121,3 +147,59 @@ dodgy_cert:
return 0;
@@ -191,6 +215,62 @@ dodgy_cert:
}
late_initcall(load_system_certificate_list);
+
+/*
+ * Load the compiled-in IMA certificate.
+ */
@@ -221,7 +212,7 @@ index c15e93f..92beb15 100644
+ ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+ KEY_USR_VIEW | KEY_USR_READ),
+ KEY_ALLOC_NOT_IN_QUOTA |
+ KEY_ALLOC_TRUSTED);
+ KEY_ALLOC_BUILT_IN);
+ if (IS_ERR(key)) {
+ pr_err("Problem loading in-kernel X.509 certificate (%ld)\n",
+ PTR_ERR(key));
@@ -241,6 +232,21 @@ index c15e93f..92beb15 100644
+ return 0;
+}
+late_initcall(load_ima_system_certificate);
+
#ifdef CONFIG_SYSTEM_DATA_VERIFICATION
/**
diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
index c7f899e..4f757a7 100644
--- a/include/keys/system_keyring.h
+++ b/include/keys/system_keyring.h
@@ -73,4 +73,6 @@ static inline void set_platform_trusted_keys(struct key *keyring)
#endif /* CONFIG_INTEGRITY_PLATFORM_KEYRING */
+extern struct key *ima_keyring;
+
#endif /* _KEYS_SYSTEM_KEYRING_H */
--
1.8.3.1
2.18.1

149
kernel-std/centos/patches/affine-compute-kernel-threads.patch
View File

@@ -29,23 +29,25 @@ Signed-off-by: Chris Friesen <chris.friesen@windriver.com>
Signed-off-by: Vu Tran <vu.tran@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
Documentation/kernel-parameters.txt | 10 ++++++++++
include/linux/cpumask.h | 2 ++
init/main.c | 6 ++----
kernel/cpu.c | 13 +++++++++++++
kernel/kmod.c | 3 +++
kernel/kthread.c | 4 ++--
6 files changed, 32 insertions(+), 6 deletions(-)
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1806170..2f7feb0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1551,6 +1551,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
kpti [X86-64] Enable kernel page table isolation.
---
Documentation/admin-guide/kernel-parameters.txt | 9 +++++++++
include/linux/cpumask.h | 3 +++
init/main.c | 2 ++
kernel/cpu.c | 14 ++++++++++++++
kernel/kthread.c | 4 ++--
kernel/umh.c | 3 +++
6 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 3ff6f8d..2f4a7ad 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1944,6 +1944,15 @@
Default: on
Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y,
the default is off.
+ kthread_cpus= [KNL, SMP] Only run kernel threads on the specified
+ list of processors. The kernel will start threads
+ on the indicated processors only (unless there
@@ -55,15 +57,14 @@ index 1806170..2f7feb0 100644
+ control where kmod and other user space threads
+ are being spawned. Allows to keep kernel threads
+ away from certain cores unless absoluteluy necessary.
+
kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
Default is 0 (don't ignore, but inject #GP)
kpti= [ARM64] Control page table isolation of user
and kernel address spaces.
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 14b4972..37a6adf 100644
index 57f20a0..4526034 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -52,6 +52,7 @@ extern int nr_cpu_ids;
@@ -54,6 +54,7 @@ extern unsigned int nr_cpu_ids;
* cpu_present_mask - has bit 'cpu' set iff cpu is populated
* cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler
* cpu_active_mask - has bit 'cpu' set iff cpu available to migration
@@ -71,50 +72,52 @@ index 14b4972..37a6adf 100644
*
* If !CONFIG_HOTPLUG_CPU, present == possible, and active == online.
*
@@ -88,6 +89,7 @@ extern const struct cpumask *const cpu_possible_mask;
extern const struct cpumask *const cpu_online_mask;
extern const struct cpumask *const cpu_present_mask;
extern const struct cpumask *const cpu_active_mask;
+extern const struct cpumask *const cpu_kthread_mask;
@@ -90,10 +91,12 @@ extern struct cpumask __cpu_possible_mask;
extern struct cpumask __cpu_online_mask;
extern struct cpumask __cpu_present_mask;
extern struct cpumask __cpu_active_mask;
+extern struct cpumask __cpu_kthread_mask;
#define cpu_possible_mask ((const struct cpumask *)&__cpu_possible_mask)
#define cpu_online_mask ((const struct cpumask *)&__cpu_online_mask)
#define cpu_present_mask ((const struct cpumask *)&__cpu_present_mask)
#define cpu_active_mask ((const struct cpumask *)&__cpu_active_mask)
+#define cpu_kthread_mask ((const struct cpumask *)&__cpu_kthread_mask)
#if NR_CPUS > 1
#define num_online_cpus() cpumask_weight(cpu_online_mask)
diff --git a/init/main.c b/init/main.c
index 085c9c5..089f83d 100644
index 8cce5b1..0c5457a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -959,10 +959,6 @@ static noinline void __init kernel_init_freeable(void)
* init can allocate pages on any node
*/
set_mems_allowed(node_states[N_MEMORY]);
- /*
- * init can run on any cpu.
- */
- set_cpus_allowed_ptr(current, cpu_all_mask);
cad_pid = task_pid(current);
@@ -978,6 +974,8 @@ static noinline void __init kernel_init_freeable(void)
@@ -1135,6 +1135,8 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
+ set_cpus_allowed_ptr(current, cpu_kthread_mask);
+
/* Open the /dev/console on the rootfs, this should never fail */
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
if (ksys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
pr_err("Warning: unable to open an initial console.\n");
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0d9e250..6c156bd 100644
index fb61ee6..4c7b343 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1012,6 +1012,19 @@ static DECLARE_BITMAP(cpu_active_bits, CONFIG_NR_CPUS) __read_mostly;
const struct cpumask *const cpu_active_mask = to_cpumask(cpu_active_bits);
EXPORT_SYMBOL(cpu_active_mask);
@@ -2218,6 +2218,9 @@ EXPORT_SYMBOL_GPL(cpu_bit_bitmap);
const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL;
EXPORT_SYMBOL(cpu_all_bits);
+static DECLARE_BITMAP(cpu_kthread_bits, CONFIG_NR_CPUS) __read_mostly
+ = CPU_BITS_ALL;
+const struct cpumask *const cpu_kthread_mask = to_cpumask(cpu_kthread_bits);
+EXPORT_SYMBOL(cpu_kthread_mask);
+const DECLARE_BITMAP(cpu_kthread_bits, NR_CPUS) = CPU_BITS_ALL;
+EXPORT_SYMBOL(cpu_kthread_bits);
+
#ifdef CONFIG_INIT_ALL_POSSIBLE
struct cpumask __cpu_possible_mask __read_mostly
= {CPU_BITS_ALL};
@@ -2235,6 +2238,17 @@ EXPORT_SYMBOL(__cpu_present_mask);
struct cpumask __cpu_active_mask __read_mostly;
EXPORT_SYMBOL(__cpu_active_mask);
+struct cpumask __cpu_kthread_mask __read_mostly;
+EXPORT_SYMBOL(__cpu_kthread_mask);
+
+static int __init kthread_setup(char *str)
+{
@@ -124,37 +127,23 @@ index 0d9e250..6c156bd 100644
+__setup("kthread_cpus=", kthread_setup);
+
+
void set_cpu_possible(unsigned int cpu, bool possible)
void init_cpu_present(const struct cpumask *src)
{
if (possible)
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 86ab754..4bf584b 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -204,6 +204,9 @@ static int ____call_usermodehelper(void *data)
flush_signal_handlers(current, 1);
spin_unlock_irq(&current->sighand->siglock);
+ /* We can run only where init is allowed to run. */
+ set_cpus_allowed_ptr(current, cpu_kthread_mask);
+
/*
* Our parent is keventd, which runs with elevated scheduling priority.
* Avoid propagating that into the userspace child.
cpumask_copy(&__cpu_present_mask, src);
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 703d910..7ea32eb 100644
index 486dedb..697ec70 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -284,7 +284,7 @@ struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
@@ -338,7 +338,7 @@ struct task_struct *__kthread_create_on_node(int (*threadfn)(void *data),
* The kernel thread should not inherit these properties.
*/
sched_setscheduler_nocheck(create.result, SCHED_NORMAL, &param);
- set_cpus_allowed_ptr(create.result, cpu_all_mask);
+ set_cpus_allowed_ptr(create.result, cpu_kthread_mask);
sched_setscheduler_nocheck(task, SCHED_NORMAL, &param);
- set_cpus_allowed_ptr(task, cpu_all_mask);
+ set_cpus_allowed_ptr(task, cpu_kthread_mask);
}
return create.result;
}
@@ -454,7 +454,7 @@ int kthreadd(void *unused)
kfree(create);
return task;
@@ -561,7 +561,7 @@ int kthreadd(void *unused)
/* Setup a clean context for our children to inherit. */
set_task_comm(tsk, "kthreadd");
ignore_signals(tsk);
@@ -163,6 +152,20 @@ index 703d910..7ea32eb 100644
set_mems_allowed(node_states[N_MEMORY]);
current->flags |= PF_NOFREEZE;
diff --git a/kernel/umh.c b/kernel/umh.c
index c449858..90c3a60 100644
--- a/kernel/umh.c
+++ b/kernel/umh.c
@@ -72,6 +72,9 @@ static int call_usermodehelper_exec_async(void *data)
flush_signal_handlers(current, 1);
spin_unlock_irq(&current->sighand->siglock);
+ /* We can run only where init is allowed to run. */
+ set_cpus_allowed_ptr(current, cpu_kthread_mask);
+
/*
* Our parent (unbound workqueue) runs with elevated scheduling
* priority. Avoid propagating that into the userspace child.
--
1.8.3.1
2.18.1

55
kernel-std/centos/patches/aic94xx-Skip-reading-user-settings-if-flash-is-not-f.patch
View File

@@ -1,55 +0,0 @@
From 6771ec5b24042ea92c2a872d28b41e39c4445c68 Mon Sep 17 00:00:00 2001
Message-Id: <6771ec5b24042ea92c2a872d28b41e39c4445c68.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 6 Jul 2015 13:07:58 +0200
Subject: [PATCH 24/26] aic94xx: Skip reading user settings if flash is not
found
If no user settings are found it's pointless trying to
read them from flash. So skip that step.
This also fixes a compilation warning about uninitialized variables in
aic94xx.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/scsi/aic94xx/aic94xx_sds.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/aic94xx/aic94xx_sds.c b/drivers/scsi/aic94xx/aic94xx_sds.c
index edb43fd..c831e30 100644
--- a/drivers/scsi/aic94xx/aic94xx_sds.c
+++ b/drivers/scsi/aic94xx/aic94xx_sds.c
@@ -983,7 +983,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
{
int err, i;
u32 offs, size;
- struct asd_ll_el *el;
+ struct asd_ll_el *el = NULL;
struct asd_ctrla_phy_settings *ps;
struct asd_ctrla_phy_settings dflt_ps;
@@ -1004,6 +1004,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
size = sizeof(struct asd_ctrla_phy_settings);
ps = &dflt_ps;
+ goto out_process;
}
if (size == 0)
@@ -1028,7 +1029,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
ASD_DPRINTK("couldn't find ctrla phy settings struct\n");
goto out2;
}
-
+out_process:
err = asd_process_ctrla_phy_settings(asd_ha, ps);
if (err) {
ASD_DPRINTK("couldn't process ctrla phy settings\n");
--
1.8.3.1

224
kernel-std/centos/patches/cma-add-placement-specifier-for-cma-kernel-parameter.patch
View File

@@ -1,224 +0,0 @@
From b6eb39977df83c5ceca5b35c041bb2923e5a47d8 Mon Sep 17 00:00:00 2001
Message-Id: <b6eb39977df83c5ceca5b35c041bb2923e5a47d8.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 31 May 2016 16:09:04 -0400
Subject: [PATCH 10/26] cma: add placement specifier for "cma=" kernel
parameter
Commit 5ea3b1b2f8ad9162684431ce6188102ca4c64b7a upstream
Backported-by: Nam Ninh <nam.ninh@windriver.com>
Currently, "cma=" kernel parameter is used to specify the size of CMA,
but we can't specify where it is located. We want to locate CMA below
4GB for devices only supporting 32-bit addressing on 64-bit systems
without iommu.
This enables to specify the placement of CMA by extending "cma=" kernel
parameter.
Examples:
1. locate 64MB CMA below 4GB by "cma=64M@0-4G"
2. locate 64MB CMA exact at 512MB by "cma=64M@512M"
Note that the DMA contiguous memory allocator on x86 assumes that
page_address() works for the pages to allocate. So this change requires
to limit end address of contiguous memory area upto max_pfn_mapped to
prevent from locating it on highmem area by the argument of
dma_contiguous_reserve().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
Documentation/kernel-parameters.txt | 7 +++++--
arch/x86/kernel/setup.c | 2 +-
drivers/base/dma-contiguous.c | 42 ++++++++++++++++++++++++++++---------
include/linux/dma-contiguous.h | 9 +++++---
4 files changed, 44 insertions(+), 16 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 590c8c2..c8f8f82 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -580,8 +580,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Also note the kernel might malfunction if you disable
some critical bits.
- cma=nn[MG] [ARM,KNL]
- Sets the size of kernel global memory area for contiguous
+ cma=nn[MG]@[start[MG][-end[MG]]]
+ [ARM,X86,KNL]
+ Sets the size of kernel global memory area for
+ contiguous memory allocations and optionally the
+ placement constraint by the physical address range of
memory allocations. For more information, see
include/linux/dma-contiguous.h
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 9eca4ac..4e39287 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1298,7 +1298,7 @@ void __init setup_arch(char **cmdline_p)
setup_real_mode();
memblock_set_current_limit(get_max_mapped());
- dma_contiguous_reserve(0);
+ dma_contiguous_reserve(max_pfn_mapped << PAGE_SHIFT);
/*
* NOTE: On x86-32, only from this point on, fixmaps are ready for use.
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index a0f89fc..a7d5bda 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -59,11 +59,22 @@ struct cma *dma_contiguous_default_area;
*/
static const phys_addr_t size_bytes = CMA_SIZE_MBYTES * SZ_1M;
static phys_addr_t size_cmdline = -1;
+static phys_addr_t base_cmdline;
+static phys_addr_t limit_cmdline;
static int __init early_cma(char *p)
{
pr_debug("%s(%s)\n", __func__, p);
size_cmdline = memparse(p, &p);
+ if (*p != '@')
+ return 0;
+ base_cmdline = memparse(p + 1, &p);
+ if (*p != '-') {
+ limit_cmdline = base_cmdline + size_cmdline;
+ return 0;
+ }
+ limit_cmdline = memparse(p + 1, &p);
+
return 0;
}
early_param("cma", early_cma);
@@ -107,11 +118,18 @@ static inline __maybe_unused phys_addr_t cma_early_percent_memory(void)
void __init dma_contiguous_reserve(phys_addr_t limit)
{
phys_addr_t selected_size = 0;
+ phys_addr_t selected_base = 0;
+ phys_addr_t selected_limit = limit;
+ bool fixed = false;
pr_debug("%s(limit %08lx)\n", __func__, (unsigned long)limit);
if (size_cmdline != -1) {
selected_size = size_cmdline;
+ selected_base = base_cmdline;
+ selected_limit = min_not_zero(limit_cmdline, limit);
+ if (base_cmdline + size_cmdline == limit_cmdline)
+ fixed = true;
} else {
#ifdef CONFIG_CMA_SIZE_SEL_MBYTES
selected_size = size_bytes;
@@ -128,10 +146,12 @@ void __init dma_contiguous_reserve(phys_addr_t limit)
pr_debug("%s: reserving %ld MiB for global area\n", __func__,
(unsigned long)selected_size / SZ_1M);
- dma_contiguous_reserve_area(selected_size, 0, limit,
- &dma_contiguous_default_area);
+ dma_contiguous_reserve_area(selected_size, selected_base,
+ selected_limit,
+ &dma_contiguous_default_area,
+ fixed);
}
-};
+}
static DEFINE_MUTEX(cma_mutex);
@@ -187,15 +207,20 @@ core_initcall(cma_init_reserved_areas);
* @base: Base address of the reserved area optional, use 0 for any
* @limit: End address of the reserved memory (optional, 0 for any).
* @res_cma: Pointer to store the created cma region.
+ * @fixed: hint about where to place the reserved area
*
* This function reserves memory from early allocator. It should be
* called by arch specific code once the early allocator (memblock or bootmem)
* has been activated and all other subsystems have already allocated/reserved
* memory. This function allows to create custom reserved areas for specific
* devices.
+ *
+ * If @fixed is true, reserve contiguous area at exactly @base. If false,
+ * reserve in range from @base to @limit.
*/
int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base,
- phys_addr_t limit, struct cma **res_cma)
+ phys_addr_t limit, struct cma **res_cma,
+ bool fixed)
{
struct cma *cma = &cma_areas[cma_area_count];
phys_addr_t alignment;
@@ -221,18 +246,15 @@ int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base,
limit &= ~(alignment - 1);
/* Reserve memory */
- if (base) {
+ if (base && fixed) {
if (memblock_is_region_reserved(base, size) ||
memblock_reserve(base, size) < 0) {
ret = -EBUSY;
goto err;
}
} else {
- /*
- * Use __memblock_alloc_base() since
- * memblock_alloc_base() panic()s.
- */
- phys_addr_t addr = __memblock_alloc_base(size, alignment, limit);
+ phys_addr_t addr = memblock_alloc_range(size, alignment, base,
+ limit);
if (!addr) {
ret = -ENOMEM;
goto err;
diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h
index 1421a95..5e3f586 100644
--- a/include/linux/dma-contiguous.h
+++ b/include/linux/dma-contiguous.h
@@ -88,7 +88,8 @@ static inline void dma_contiguous_set_default(struct cma *cma)
void dma_contiguous_reserve(phys_addr_t addr_limit);
int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base,
- phys_addr_t limit, struct cma **res_cma);
+ phys_addr_t limit, struct cma **res_cma,
+ bool fixed);
/**
* dma_declare_contiguous() - reserve area for contiguous memory handling
@@ -108,7 +109,7 @@ static inline int dma_declare_contiguous(struct device *dev, phys_addr_t size,
{
struct cma *cma;
int ret;
- ret = dma_contiguous_reserve_area(size, base, limit, &cma);
+ ret = dma_contiguous_reserve_area(size, base, limit, &cma, true);
if (ret == 0)
dev_set_cma_area(dev, cma);
@@ -136,7 +137,9 @@ static inline void dma_contiguous_set_default(struct cma *cma) { }
static inline void dma_contiguous_reserve(phys_addr_t limit) { }
static inline int dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base,
- phys_addr_t limit, struct cma **res_cma) {
+ phys_addr_t limit, struct cma **res_cma,
+ bool fixed)
+{
return -ENOSYS;
}
--
1.8.3.1

35
kernel-std/centos/patches/compile-fix-for-disabling-CONFIG_MEMCG_KMEM.patch
View File

@@ -1,35 +0,0 @@
From 66936b9bfda2fa11019bf45298047c7365fdacb4 Mon Sep 17 00:00:00 2001
From: Bart Wensley <barton.wensley@windriver.com>
Date: Mon, 8 Jul 2019 13:32:44 -0500
Subject: [PATCH 1/1] compile fix for disabling CONFIG_MEMCG_KMEM
Signed-off-by: Bart Wensley <barton.wensley@windriver.com>
---
mm/memcontrol.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 175fef9..e475427 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2995,6 +2995,8 @@ static void __mem_cgroup_commit_charge(struct mem_cgroup *memcg,
memcg_check_events(memcg, page);
}
+static DEFINE_MUTEX(memcg_limit_mutex);
+
#ifdef CONFIG_MEMCG_KMEM
/*
* The memcg_slab_mutex is held whenever a per memcg kmem cache is created or
@@ -3375,8 +3377,6 @@ static inline void memcg_resume_kmem_account(void)
current->memcg_kmem_skip_account--;
}
-static DEFINE_MUTEX(memcg_limit_mutex);
-
int __kmem_cache_destroy_memcg_children(struct kmem_cache *s)
{
struct kmem_cache *c;
--
1.8.3.1

92
kernel-std/centos/patches/cpuidle-menu-Avoid-taking-spinlock-for-accessing-QoS.patch
View File

@@ -1,92 +0,0 @@
From c900922b59bc9f2b680f9d1846bf7599d8410de8 Mon Sep 17 00:00:00 2001
Message-Id: <c900922b59bc9f2b680f9d1846bf7599d8410de8.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 24 Feb 2017 13:25:14 +0100
Subject: [PATCH 21/26] cpuidle: menu: Avoid taking spinlock for accessing QoS
values
[commit 6dbf5cea05a7098a69f294c96b6d76f08562cae5 from linux-stable ]
After commit 9908859acaa9 (cpuidle/menu: add per CPU PM QoS resume
latency consideration) the cpuidle menu governor calls
dev_pm_qos_read_value() on CPU devices to read the current resume latency QoS
constraint values for them. That function takes a spinlock to prevent the
device's power.qos pointer from becoming NULL during the access which is a
problem for the RT patchset where spinlocks are converted into mutexes and
the idle loop stops working.
However, it is not even necessary for the menu governor to take
that spinlock, because the power.qos pointer accessed under it
cannot be modified during the access anyway.
For this reason, introduce a "raw" routine for accessing device
QoS resume latency constraints without locking and use it in the
menu governor.
Fixes: 9908859acaa9 (cpuidle/menu: add per CPU PM QoS resume latency consideration)
Acked-by: Alex Shi <alex.shi@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Alex Kozyrev <alex.kozyrev@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/base/power/qos.c | 3 +--
drivers/cpuidle/governors/menu.c | 2 +-
include/linux/pm_qos.h | 6 ++++++
3 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index b2ca302..0cc2a13 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -104,8 +104,7 @@ EXPORT_SYMBOL_GPL(dev_pm_qos_flags);
*/
s32 __dev_pm_qos_read_value(struct device *dev)
{
- return IS_ERR_OR_NULL(dev->power.qos) ?
- 0 : pm_qos_read_value(&dev->power.qos->latency);
+ return dev_pm_qos_raw_read_value(dev);
}
/**
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index fe2dcb8..f9861fd 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -265,7 +265,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
int i;
int multiplier;
struct timespec t;
- int resume_latency = dev_pm_qos_read_value(device);
+ int resume_latency = dev_pm_qos_raw_read_value(device);
if (data->needs_update) {
menu_update(drv, dev);
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 5281e7f..1d8b629 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -217,6 +217,11 @@ static inline s32 dev_pm_qos_requested_flags(struct device *dev)
{
return dev->power.qos->flags_req->data.flr.flags;
}
+static inline s32 dev_pm_qos_raw_read_value(struct device *dev)
+{
+ return IS_ERR_OR_NULL(dev->power.qos) ?
+ 0 : pm_qos_read_value(&dev->power.qos->latency);
+}
#else
static inline int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value)
{ return 0; }
@@ -236,6 +241,7 @@ static inline void dev_pm_qos_hide_latency_tolerance(struct device *dev) {}
static inline s32 dev_pm_qos_requested_latency(struct device *dev) { return 0; }
static inline s32 dev_pm_qos_requested_flags(struct device *dev) { return 0; }
+static inline s32 dev_pm_qos_raw_read_value(struct device *dev) { return 0; }
#endif
#endif
--
1.8.3.1

71
kernel-std/centos/patches/cpuidle-menu-add-per-CPU-PM-QoS-resume-latency-consi.patch
View File

@@ -1,71 +0,0 @@
From e3d73746230638fd50670d67843346ccaebb885b Mon Sep 17 00:00:00 2001
Message-Id: <e3d73746230638fd50670d67843346ccaebb885b.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Alex Shi <alex.shi@linaro.org>
Date: Thu, 12 Jan 2017 21:27:04 +0800
Subject: [PATCH 19/26] cpuidle/menu: add per CPU PM QoS resume latency
consideration
[ commit 9908859acaa95640d4a07991a93f7cd5bfc18e02 from linux-stable ]
There may be special requirements on CPU response time, like if
a interrupt is pinned to a CPU, that CPU should not go into excessively deep
idle states. For this reason, add a mechanism for adding PM QoS resume
latency constraints for individual CPUs and modify the menu governor to take
them into account.
To that end, extend the device PM QoS pm_qos_resume_latency attribute
to CPUs, which is possible, because the exit latency for CPUs is
effectively equivalent to the resume latency for devices.
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Acked-by: Rik van Riel <riel@redhat.com>
[ rjw : Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Alex Kozyrev <alex.kozyrev@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/cpuidle/governors/menu.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index eb9fb0e..fe2dcb8 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -19,6 +19,7 @@
#include <linux/tick.h>
#include <linux/sched.h>
#include <linux/math64.h>
+#include <linux/cpu.h>
#include <linux/module.h>
#define BUCKETS 12
@@ -259,10 +260,12 @@ again:
static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
struct menu_device *data = &__get_cpu_var(menu_devices);
+ struct device *device = get_cpu_device(dev->cpu);
int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
int i;
int multiplier;
struct timespec t;
+ int resume_latency = dev_pm_qos_read_value(device);
if (data->needs_update) {
menu_update(drv, dev);
@@ -271,6 +274,10 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
data->exit_us = 0;
+ /* resume_latency is 0 means no restriction */
+ if (resume_latency && resume_latency < latency_req)
+ latency_req = resume_latency;
+
/* Special case when user has set very strict latency requirement */
if (unlikely(latency_req == 0))
return 0;
--
1.8.3.1

52
kernel-std/centos/patches/cpuidle-menu-stop-seeking-deeper-idle-if-current-sta.patch
View File

@@ -1,52 +0,0 @@
From 3735f7414216e00f72e08c5d85a98e3b649fc085 Mon Sep 17 00:00:00 2001
Message-Id: <3735f7414216e00f72e08c5d85a98e3b649fc085.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Alex Shi <alex.shi@linaro.org>
Date: Thu, 12 Jan 2017 21:27:02 +0800
Subject: [PATCH 18/26] cpuidle/menu: stop seeking deeper idle if current state
is deep enough
[ commit 8e37e1a2a3295f5d99e6dbe99eca24eca7a034ef from linux-stable ]
Obsolete commit 71abbbf856a0 (cpuidle: extend cpuidle and menu
governor to handle dynamic states) wanted to introduce dynamic C-states, but
that idea was dropped long ago. The nonsense deeper C-state checking
remained, though.
Since both target_residency and exit_latency are longer for deeper
idle state, there's no need to waste CPU time on useless checks.
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Acked-by: Rik van Riel <riel@redhat.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Alex Kozyrev <alex.kozyrev@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/cpuidle/governors/menu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index c99fee9..eb9fb0e 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -323,11 +323,11 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
if (s->disabled || su->disable)
continue;
if (s->target_residency > data->predicted_us)
- continue;
+ break;
if (s->exit_latency > latency_req)
- continue;
+ break;
if (s->exit_latency * multiplier > data->predicted_us)
- continue;
+ break;
data->last_state_idx = i;
data->exit_us = s->exit_latency;
--
1.8.3.1

44
kernel-std/centos/patches/dpt_i2o-fix-build-warning.patch
View File

@@ -1,44 +0,0 @@
From 47b0bf6b68f473392fe04755721f57990a4b111d Mon Sep 17 00:00:00 2001
Message-Id: <47b0bf6b68f473392fe04755721f57990a4b111d.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Thu, 18 Feb 2016 13:59:13 +0530
Subject: [PATCH 25/26] dpt_i2o: fix build warning
We were getting build warning about:
drivers/scsi/dpt_i2o.c:183:29: warning: 'dptids' defined but not used
dptids[] is only used in the MODULE_DEVICE_TABLE so when MODULE is not
defined then dptids[] becomes unused.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
drivers/scsi/dpt_i2o.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 2bce881..cb62223 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -180,11 +180,14 @@ static u8 adpt_read_blink_led(adpt_hba* host)
*============================================================================
*/
+#ifdef MODULE
static struct pci_device_id dptids[] = {
{ PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
{ PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
{ 0, }
};
+#endif
+
MODULE_DEVICE_TABLE(pci,dptids);
static int adpt_detect(struct scsi_host_template* sht)
--
1.8.3.1

52
kernel-std/centos/patches/epoll-fix-use-after-free-in-eventpoll_release_file.patch
View File

@@ -1,52 +0,0 @@
From ebe06187bf2aec10d537ce4595e416035367d703 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <koct9i@gmail.com>
Date: Tue, 17 Jun 2014 06:58:05 +0400
Subject: [PATCH] epoll: fix use-after-free in eventpoll_release_file
This fixes use-after-free of epi->fllink.next inside list loop macro.
This loop actually releases elements in the body. The list is
rcu-protected but here we cannot hold rcu_read_lock because we need to
lock mutex inside.
The obvious solution is to use list_for_each_entry_safe(). RCU-ness
isn't essential because nobody can change this list under us, it's final
fput for this file.
The bug was introduced by ae10b2b4eb01 ("epoll: optimize EPOLL_CTL_DEL
using rcu")
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Stable <stable@vger.kernel.org> # 3.13+
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/eventpoll.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index b73e062..b10b48c 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -910,7 +910,7 @@ static const struct file_operations eventpoll_fops = {
void eventpoll_release_file(struct file *file)
{
struct eventpoll *ep;
- struct epitem *epi;
+ struct epitem *epi, *next;
/*
* We don't want to get "file->f_lock" because it is not
@@ -926,7 +926,7 @@ void eventpoll_release_file(struct file *file)
* Besides, ep_remove() acquires the lock, so we can't hold it here.
*/
mutex_lock(&epmutex);
- list_for_each_entry_rcu(epi, &file->f_ep_links, fllink) {
+ list_for_each_entry_safe(epi, next, &file->f_ep_links, fllink) {
ep = epi->ep;
mutex_lock_nested(&ep->mtx, 0);
ep_remove(ep, epi);
--
2.7.4

66
kernel-std/centos/patches/fix-CentOS-7.6-upgrade-compile-error.patch
View File

@@ -1,66 +0,0 @@
From 84a6fef49cb58415d9790947e65c34b09d99d356 Mon Sep 17 00:00:00 2001
From: "Martin, Chen" <haochuan.z.chen@intel.com>
Date: Mon, 14 Jan 2019 19:58:07 +0000
Subject: [PATCH] fix CentOS 7.6 upgrade compile error
1, fix improper call of part_round_stats and part_inc_in_flight
in drbd_req.c, as CONFIG_BLK_DEV_DRBD=m defined in
kernel-3.10.0-x86_64.config.tis_extra
2, add explicit declaration for trace_bpf_int_jit_compile,
trace_bpf_jit_compile, trace_bpf_jit_free, if pmd_read_atomic not
defined
Signed-off-by: Martin, Chen <haochuan.z.chen@intel.com>
---
drivers/block/drbd/drbd_req.c | 8 ++++----
include/linux/filter.h | 3 +++
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index a6f13f7..cbd0a49 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -39,12 +39,12 @@ static void _drbd_start_io_acct(struct drbd_conf *mdev, struct drbd_request *req
const int rw = bio_data_dir(req->master_bio);
int cpu;
cpu = part_stat_lock();
- part_round_stats(cpu, &mdev->vdisk->part0);
+ part_round_stats(mdev->rq_queue, cpu, &mdev->vdisk->part0);
part_stat_inc(cpu, &mdev->vdisk->part0, ios[rw]);
part_stat_add(cpu, &mdev->vdisk->part0, sectors[rw], req->i.size >> 9);
(void) cpu; /* The macro invocations above want the cpu argument, I do not like
the compiler warning about cpu only assigned but never used... */
- part_inc_in_flight(&mdev->vdisk->part0, rw);
+ part_inc_in_flight(mdev->rq_queue, &mdev->vdisk->part0, rw);
part_stat_unlock();
}
@@ -56,8 +56,8 @@ static void _drbd_end_io_acct(struct drbd_conf *mdev, struct drbd_request *req)
int cpu;
cpu = part_stat_lock();
part_stat_add(cpu, &mdev->vdisk->part0, ticks[rw], duration);
- part_round_stats(cpu, &mdev->vdisk->part0);
- part_dec_in_flight(&mdev->vdisk->part0, rw);
+ part_round_stats(mdev->rq_queue, cpu, &mdev->vdisk->part0);
+ part_dec_in_flight(mdev->rq_queue, &mdev->vdisk->part0, rw);
part_stat_unlock();
}
diff --git a/include/linux/filter.h b/include/linux/filter.h
index cddbb31..15ce55f 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -763,6 +763,9 @@ void bpf_prog_kallsyms_add(struct bpf_prog *fp);
void bpf_prog_kallsyms_del(struct bpf_prog *fp);
#else /* CONFIG_BPF_JIT */
+struct bpf_prog * __weak trace_bpf_int_jit_compile(struct bpf_prog *prog);
+void __weak trace_bpf_jit_compile(struct bpf_prog *prog);
+void __weak trace_bpf_jit_free(struct bpf_prog *fp);
static inline bool bpf_prog_ebpf_jited(const struct bpf_prog *fp)
{
--
1.8.3.1

96
kernel-std/centos/patches/fix-compilation-issues.patch
View File

@@ -1,96 +0,0 @@
From d4187124ed859c36b9055cc240cc0c8181e54725 Mon Sep 17 00:00:00 2001
Message-Id: <d4187124ed859c36b9055cc240cc0c8181e54725.1528311567.git.Jim.Somerville@windriver.com>
From: Jim Somerville <Jim.Somerville@windriver.com>
Date: Thu, 31 May 2018 17:47:26 -0400
Subject: [PATCH 1/1] fix compilation issues
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
arch/x86/mm/kaiser.c | 2 +-
drivers/base/dma-contiguous.c | 2 +-
include/asm-generic/pgtable.h | 20 --------------------
include/linux/huge_mm.h | 2 +-
4 files changed, 3 insertions(+), 23 deletions(-)
diff --git a/arch/x86/mm/kaiser.c b/arch/x86/mm/kaiser.c
index e233c88..5564c8d 100644
--- a/arch/x86/mm/kaiser.c
+++ b/arch/x86/mm/kaiser.c
@@ -621,7 +621,7 @@ static const struct file_operations fops_kaiser_enabled = {
static int __init create_kpti_enabled(void)
{
- if (!xen_pv_domain() && !sme_active())
+ if (!is_xen_pv_domain() && !sme_active())
debugfs_create_file("pti_enabled", S_IRUSR | S_IWUSR,
arch_debugfs_dir, NULL, &fops_kaiser_enabled);
return 0;
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index a7d5bda..403101d 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -287,7 +287,7 @@ struct page *dma_alloc_from_contiguous(struct device *dev, size_t count,
if (align > CONFIG_CMA_ALIGNMENT)
align = CONFIG_CMA_ALIGNMENT;
- pr_debug("%s(cma %p, count %d, align %d)\n", __func__, (void *)cma,
+ pr_debug("%s(cma %p, count %zu, align %d)\n", __func__, (void *)cma,
count, align);
if (!count)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 8aa445d..57e6b74 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -629,10 +629,6 @@ static inline int pmd_trans_splitting(pmd_t pmd)
{
return 0;
}
-static inline int pud_trans_huge(pud_t pud)
-{
- return 0;
-}
static inline int pud_trans_splitting(pud_t pud)
{
return 0;
@@ -644,24 +640,8 @@ static inline int pmd_write(pmd_t pmd)
return 0;
}
#endif /* __HAVE_ARCH_PMD_WRITE */
-#ifndef __HAVE_ARCH_PUD_WRITE
-static inline int pud_write(pud_t pud)
-{
- BUG();
- return 0;
-}
-#endif /* __HAVE_ARCH_PUD_WRITE */
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-#if !defined(CONFIG_TRANSPARENT_HUGEPAGE) || \
- (defined(CONFIG_TRANSPARENT_HUGEPAGE) && \
- !defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD))
-static inline int pud_trans_huge(pud_t pud)
-{
- return 0;
-}
-#endif
-
#ifndef pmd_read_atomic
static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
{
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 26ec982..45af11b 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -362,7 +362,7 @@ static inline int pud_trans_huge_lock(pud_t *pud, struct vm_area_struct *vma,
return 0;
}
-static inline int do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t orig_pmd);
+static inline int do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t orig_pmd)
{
return 0;
}
--
1.8.3.1

40
kernel-std/centos/patches/intel-iommu-allow-ignoring-Ethernet-device-RMRR-with.patch
View File

@@ -20,17 +20,19 @@ Signed-off-by: Nam Ninh <nam.ninh@windriver.com>
Signed-off-by: Nam Ninh <nam.ninh@windriver.com>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
Documentation/Intel-IOMMU.txt | 18 ++++++++++++++++++
Documentation/kernel-parameters.txt | 5 +++++
drivers/iommu/intel-iommu.c | 19 +++++++++++++++++++
Documentation/Intel-IOMMU.txt | 18 ++++++++++++++++++
.../admin-guide/kernel-parameters.txt | 5 +++++
drivers/iommu/intel-iommu.c | 19 +++++++++++++++++++
3 files changed, 42 insertions(+)
diff --git a/Documentation/Intel-IOMMU.txt b/Documentation/Intel-IOMMU.txt
index cf9431d..1dcc349 100644
index 9dae6b4..1080fcb 100644
--- a/Documentation/Intel-IOMMU.txt
+++ b/Documentation/Intel-IOMMU.txt
@@ -32,6 +32,24 @@ regions will fail. Hence BIOS uses RMRR to specify these regions along with
@@ -33,6 +33,24 @@ regions will fail. Hence BIOS uses RMRR to specify these regions along with
devices that need to access these regions. OS is expected to setup
unity mappings for these regions for these devices to access these regions.
@@ -39,7 +41,7 @@ index cf9431d..1dcc349 100644
+
+There are reports of BIOS out there that indicate RMRR regions for things
+like ethernet devices. As per mainline commit c875d2c1b8083 ("iommu/vt-d:
+ Exclude devices using RMRRs from IOMMU API domains") such a device is
+Exclude devices using RMRRs from IOMMU API domains") such a device is
+"fundamentally incompatible" with the IOMMU API and "we must prevent such
+devices from being used by the IOMMU API." However, in the event that
+the RMRR indicated by the BIOS is assumed to be just a reporting error,
@@ -53,13 +55,13 @@ index cf9431d..1dcc349 100644
+may result.
+
How is IOVA generated?
---------------------
----------------------
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2f7feb0..590c8c2 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1315,6 +1315,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 2f4a7ad..c11ebc3 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1651,6 +1651,11 @@
than 32-bit addressing. The default is to look
for translation below 32-bit and if not available
then look in the higher range.
@@ -72,18 +74,18 @@ index 2f7feb0..590c8c2 100644
With this option on every unmap_single operation will
result in a hardware IOTLB flush operation as opposed
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 260597e..6c16b68 100644
index 7e9f1db..a28bafe 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -480,6 +480,7 @@ static int dmar_forcedac;
@@ -485,6 +485,7 @@ static int dmar_forcedac;
static int intel_iommu_strict;
static int intel_iommu_superpage = 1;
static int intel_iommu_ecs = 1;
+static int intel_iommu_ethrmrr = 1;
static int intel_iommu_pasid28;
static int iommu_identity_mapping;
/* We only actually use ECS when PASID support (on the new bit 40)
* is also advertised. Some early implementations — the ones with
@@ -539,6 +540,15 @@ static int __init intel_iommu_setup(char *str)
@@ -569,6 +570,15 @@ static int __init intel_iommu_setup(char *str)
} else if (!strncmp(str, "forcedac", 8)) {
pr_info("Forcing DAC for PCI devices\n");
dmar_forcedac = 1;
@@ -99,7 +101,7 @@ index 260597e..6c16b68 100644
} else if (!strncmp(str, "strict", 6)) {
pr_info("Disable batched IOTLB flush\n");
intel_iommu_strict = 1;
@@ -2820,6 +2830,15 @@ static bool device_is_rmrr_locked(struct device *dev)
@@ -2917,6 +2927,15 @@ static bool device_is_rmrr_locked(struct device *dev)
if (IS_USB_DEVICE(pdev) || IS_GFX_DEVICE(pdev))
return false;
@@ -116,5 +118,5 @@ index 260597e..6c16b68 100644
return true;
--
1.8.3.1
2.18.1

57
kernel-std/centos/patches/ipvs-fix-memory-leak-in-ip_vs_ctl.c.patch
View File

@@ -1,57 +0,0 @@
From e3887b1e84e274be02f992e034e0dba1f53925b6 Mon Sep 17 00:00:00 2001
Message-Id: <e3887b1e84e274be02f992e034e0dba1f53925b6.1566585829.git.Jim.Somerville@windriver.com>
From: Tommi Rantala <tt.rantala@gmail.com>
Date: Thu, 7 May 2015 15:12:21 +0300
Subject: [PATCH 1/3] ipvs: fix memory leak in ip_vs_ctl.c
[ commit f30bf2a5cac6c60ab366c4bc6db913597bf4d6ab in Linus' repo ]
Fix memory leak introduced in commit a0840e2e165a ("IPVS: netns,
ip_vs_ctl local vars moved to ipvs struct."):
unreferenced object 0xffff88005785b800 (size 2048):
comm "(-localed)", pid 1434, jiffies 4294755650 (age 1421.089s)
hex dump (first 32 bytes):
bb 89 0b 83 ff ff ff ff b0 78 f0 4e 00 88 ff ff .........x.N....
04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8262ea8e>] kmemleak_alloc+0x4e/0xb0
[<ffffffff811fba74>] __kmalloc_track_caller+0x244/0x430
[<ffffffff811b88a0>] kmemdup+0x20/0x50
[<ffffffff823276b7>] ip_vs_control_net_init+0x1f7/0x510
[<ffffffff8231d630>] __ip_vs_init+0x100/0x250
[<ffffffff822363a1>] ops_init+0x41/0x190
[<ffffffff82236583>] setup_net+0x93/0x150
[<ffffffff82236cc2>] copy_net_ns+0x82/0x140
[<ffffffff810ab13d>] create_new_namespaces+0xfd/0x190
[<ffffffff810ab49a>] unshare_nsproxy_namespaces+0x5a/0xc0
[<ffffffff810833e3>] SyS_unshare+0x173/0x310
[<ffffffff8265cbd7>] system_call_fastpath+0x12/0x6f
[<ffffffffffffffff>] 0xffffffffffffffff
Fixes: a0840e2e165a ("IPVS: netns, ip_vs_ctl local vars moved to ipvs struct.")
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
net/netfilter/ipvs/ip_vs_ctl.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 02409f3..3738b84 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3843,6 +3843,9 @@ static void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net)
cancel_delayed_work_sync(&ipvs->defense_work);
cancel_work_sync(&ipvs->defense_work.work);
unregister_net_sysctl_table(ipvs->sysctl_hdr);
+
+ if (!net_eq(net, &init_net))
+ kfree(ipvs->sysctl_tbl);
}
#else
--
1.8.3.1

0
kernel-std/centos/patches/kernel-3.10.0-x86_64.config.tis_extra → kernel-std/centos/patches/kernel-x86_64.config.tis_extra
View File

96
kernel-std/centos/patches/memblock-introduce-memblock_alloc_range.patch
View File

@@ -1,96 +0,0 @@
From b4007dff3d6d7fc27d8b3431213202fb9c34793d Mon Sep 17 00:00:00 2001
Message-Id: <b4007dff3d6d7fc27d8b3431213202fb9c34793d.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 31 May 2016 16:07:55 -0400
Subject: [PATCH 09/26] memblock: introduce memblock_alloc_range()
Commit 2bfc2862c4fe38379a2fb2cfba33fad32ccb4ff4 upstream
Backported-by: Nam Ninh <nam.ninh@windriver.com>
This introduces memblock_alloc_range() which allocates memblock from the
specified range of physical address. I would like to use this function
to specify the location of CMA.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
include/linux/memblock.h | 2 ++
mm/memblock.c | 22 ++++++++++++++++++----
2 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 5a439c9..d6bcbef 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -306,6 +306,8 @@ static inline bool memblock_bottom_up(void) { return false; }
#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
#define MEMBLOCK_ALLOC_ACCESSIBLE 0
+phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
+ phys_addr_t start, phys_addr_t end);
phys_addr_t memblock_alloc_base(phys_addr_t size, phys_addr_t align,
phys_addr_t max_addr);
phys_addr_t __memblock_alloc_base(phys_addr_t size, phys_addr_t align,
diff --git a/mm/memblock.c b/mm/memblock.c
index fbc8071..ff910a4 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1120,9 +1120,9 @@ int __init_memblock memblock_set_node(phys_addr_t base, phys_addr_t size,
}
#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-static phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
- phys_addr_t align, phys_addr_t max_addr,
- int nid, ulong flags)
+static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
+ phys_addr_t align, phys_addr_t start,
+ phys_addr_t end, int nid, ulong flags)
{
phys_addr_t found;
@@ -1132,7 +1132,7 @@ static phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
/* align @size to avoid excessive fragmentation on reserved array */
size = round_up(size, align);
- found = memblock_find_in_range_node(size, align, 0, max_addr, nid,
+ found = memblock_find_in_range_node(size, align, start, end, nid,
flags);
if (found && !memblock_reserve(found, size))
return found;
@@ -1140,6 +1140,20 @@ static phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
return 0;
}
+phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
+ phys_addr_t start, phys_addr_t end)
+{
+ ulong flags = choose_memblock_flags();
+ return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE, flags);
+}
+
+static phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
+ phys_addr_t align, phys_addr_t max_addr,
+ int nid, ulong flags)
+{
+ return memblock_alloc_range_nid(size, align, 0, max_addr, nid, flags);
+}
+
phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid)
{
ulong flags = choose_memblock_flags();
--
1.8.3.1

47
kernel-std/centos/patches/rcu-Don-t-wake-rcuc-X-kthreads-on-NOCB-CPUs.patch
View File

@@ -1,47 +0,0 @@
From fe5869e78860a9150e24ea32c1a131da6af057c8 Mon Sep 17 00:00:00 2001
Message-Id: <fe5869e78860a9150e24ea32c1a131da6af057c8.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 15 Dec 2016 15:37:47 -0800
Subject: [PATCH 15/26] rcu: Don't wake rcuc/X kthreads on NOCB CPUs
[ upstream 630c7ed9ca0608912fa7c8591d05dfc8742dc9e6 in tip repo ]
Chris Friesen notice that rcuc/X kthreads were consuming CPU even on
NOCB CPUs. This makes no sense because the only purpose or these
kthreads is to invoke normal (non-offloaded) callbacks, of which there
will never be any on NOCB CPUs. This problem was due to a bug in
cpu_has_callbacks_ready_to_invoke(), which should have been checking
->nxttail[RCU_NEXT_TAIL] for NULL, but which was instead (incorrectly)
checking ->nxttail[RCU_DONE_TAIL]. Because ->nxttail[RCU_DONE_TAIL] is
never NULL, the only effect is to cause the rcuc/X kthread to execute
when it should not do so.
This commit therefore checks ->nxttail[RCU_NEXT_TAIL], which is NULL
for NOCB CPUs.
Reported-by: Chris Friesen <chris.friesen@windriver.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
kernel/rcutree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index cd68fe3..3276ac1 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -300,7 +300,7 @@ static int
cpu_has_callbacks_ready_to_invoke(struct rcu_data *rdp)
{
return &rdp->nxtlist != rdp->nxttail[RCU_DONE_TAIL] &&
- rdp->nxttail[RCU_DONE_TAIL] != NULL;
+ rdp->nxttail[RCU_NEXT_TAIL] != NULL;
}
/*
--
1.8.3.1

67
kernel-std/centos/patches/rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
View File

@@ -1,67 +0,0 @@
From 598c88638d4f46a38bf3d0669bc042c1ea1e4605 Mon Sep 17 00:00:00 2001
Message-Id: <598c88638d4f46a38bf3d0669bc042c1ea1e4605.1566585829.git.Jim.Somerville@windriver.com>
In-Reply-To: <e3887b1e84e274be02f992e034e0dba1f53925b6.1566585829.git.Jim.Somerville@windriver.com>
References: <e3887b1e84e274be02f992e034e0dba1f53925b6.1566585829.git.Jim.Somerville@windriver.com>
From: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Date: Fri, 9 Feb 2018 11:52:14 +0300
Subject: [PATCH 2/3] rh/ext4: release leaked posix acl in ext4_acl_chmod
[ commit b85d6be0b743a1768b8456d36b52960858fbaa67 in OpenVZ's vzkernel repo ]
Note: only rh7-3.10.0-693.17.1.el7-based kernels are affected.
I.e. starting from rh7-3.10.0-693.17.1.vz7.43.1.
Posix acl is used to convert of an extended attribute, provided by user to ext4
attributes. In particular to i_mode in case of ACL_TYPE_ACCESS request.
IOW, this object is allocated, used for convertion, not stored anywhere and
must be freed.
However posix_acl_update_mode() can zerofy the pointer to support
ext4_set_acl() logic, but then the object is leaked. So, fix it by releasing
new temporary pointer with the same value instead of acl pointer.
In scope of https://jira.sw.ru/browse/PSBM-81384
RHEL bug URL: https://bugzilla.redhat.com/show_bug.cgi?id=1543020
Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Acked-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
fs/ext4/acl.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 917e819..fce029f 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -297,7 +297,7 @@ cleanup:
int
ext4_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl;
+ struct posix_acl *acl, *real_acl;
handle_t *handle;
int retries = 0;
int error;
@@ -315,6 +315,8 @@ ext4_acl_chmod(struct inode *inode)
error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
if (error)
return error;
+
+ real_acl = acl;
retry:
handle = ext4_journal_start(inode, EXT4_HT_XATTR,
ext4_jbd2_credits_xattr(inode));
@@ -341,7 +343,7 @@ out_stop:
ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
out:
- posix_acl_release(acl);
+ posix_acl_release(real_acl);
return error;
}
--
1.8.3.1

79
kernel-std/centos/patches/rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
View File

@@ -1,79 +0,0 @@
From 190fe153e1def764a02d7cb3438f5bc7c0402e48 Mon Sep 17 00:00:00 2001
Message-Id: <190fe153e1def764a02d7cb3438f5bc7c0402e48.1566585829.git.Jim.Somerville@windriver.com>
In-Reply-To: <e3887b1e84e274be02f992e034e0dba1f53925b6.1566585829.git.Jim.Somerville@windriver.com>
References: <e3887b1e84e274be02f992e034e0dba1f53925b6.1566585829.git.Jim.Somerville@windriver.com>
From: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Date: Fri, 9 Feb 2018 11:52:15 +0300
Subject: [PATCH 3/3] rh/ext4: release leaked posix acl in ext4_xattr_set_acl
[ commit b762d904ada70f239f1c2d2d70c4a64cd04c8ade in OpenVZ's vzkernel repo ]
Note: only rh7-3.10.0-693.17.1.el7-based kernels are affcted.
I.e. starting from rh7-3.10.0-693.17.1.vz7.43.1.
Posix acl is used to convert of an extended attribute, provided by user to ext4
attributes. In particular to i_mode in case of ACL_TYPE_ACCESS request.
IOW, this object is allocated, used for convertion, not stored anywhere and
must be freed.
However posix_acl_update_mode() can zerofy the pointer to support
ext4_set_acl() logic, but then the object is leaked. So, fix it by releasing
new temporary pointer with the same value instead of acl pointer.
https://jira.sw.ru/browse/PSBM-81384
RHEL bug URL: https://bugzilla.redhat.com/show_bug.cgi?id=1543020
v2: Added affected kernel version + RHEL bug URL
Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Acked-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
fs/ext4/acl.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index fce029f..046b338 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -405,7 +405,7 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
{
struct inode *inode = dentry->d_inode;
handle_t *handle;
- struct posix_acl *acl;
+ struct posix_acl *acl, *real_acl;
int error, retries = 0;
int update_mode = 0;
umode_t mode = inode->i_mode;
@@ -418,7 +418,7 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
return -EPERM;
if (value) {
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
+ acl = real_acl = posix_acl_from_xattr(&init_user_ns, value, size);
if (IS_ERR(acl))
return PTR_ERR(acl);
else if (acl) {
@@ -427,7 +427,7 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
goto release_and_out;
}
} else
- acl = NULL;
+ acl = real_acl = NULL;
retry:
handle = ext4_journal_start(inode, EXT4_HT_XATTR,
@@ -454,7 +454,7 @@ out_stop:
goto retry;
release_and_out:
- posix_acl_release(acl);
+ posix_acl_release(real_acl);
return error;
}
--
1.8.3.1

10
kernel-std/centos/patches/turn-off-write-same-in-smartqpi-driver.patch
View File

@@ -7,16 +7,18 @@ Date: Tue, 6 Mar 2018 12:54:40 -0500
Subject: [PATCH 26/26] turn off write same in smartqpi driver
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
Signed-off-by: Zhang Zhiguo <zhangzhg@neusoft.com>
---
drivers/scsi/smartpqi/smartpqi_init.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 2c6b546..6968c48 100644
index f40e177..852a9fb 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -5814,6 +5814,7 @@ static struct scsi_host_template pqi_driver_template = {
.slave_alloc = pqi_slave_alloc,
@@ -5803,6 +5803,7 @@ static struct scsi_host_template pqi_driver_template = {
.map_queues = pqi_map_queues,
.sdev_attrs = pqi_sdev_attrs,
.shost_attrs = pqi_shost_attrs,
+ .no_write_same = 1,
@@ -24,5 +26,5 @@ index 2c6b546..6968c48 100644
static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
--
1.8.3.1
2.18.1

156
kernel-std/centos/patches/x86-enable-DMA-CMA-with-swiotlb.patch
View File

@@ -1,156 +0,0 @@
From e27598227a12485c787a57581b1797531941bf51 Mon Sep 17 00:00:00 2001
Message-Id: <e27598227a12485c787a57581b1797531941bf51.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 4 Jun 2014 16:06:50 -0700
Subject: [PATCH 11/26] x86: enable DMA CMA with swiotlb
commit 9c5a3621427da68afe6a078cadf807d2c8cc1d12 upstream.
Ported-by: Nam Ninh <nam.ninh@windriver.com>
The DMA Contiguous Memory Allocator support on x86 is disabled when
swiotlb config option is enabled. So DMA CMA is always disabled on
x86_64 because swiotlb is always enabled. This attempts to support for
DMA CMA with enabling swiotlb config option.
The contiguous memory allocator on x86 is integrated in the function
dma_generic_alloc_coherent() which is .alloc callback in nommu_dma_ops
for dma_alloc_coherent().
x86_swiotlb_alloc_coherent() which is .alloc callback in swiotlb_dma_ops
tries to allocate with dma_generic_alloc_coherent() firstly and then
swiotlb_alloc_coherent() is called as a fallback.
The main part of supporting DMA CMA with swiotlb is that changing
x86_swiotlb_free_coherent() which is .free callback in swiotlb_dma_ops
for dma_free_coherent() so that it can distinguish memory allocated by
dma_generic_alloc_coherent() from one allocated by
swiotlb_alloc_coherent() and release it with dma_generic_free_coherent()
which can handle contiguous memory. This change requires making
is_swiotlb_buffer() global function.
This also needs to change .free callback in the dma_map_ops for amd_gart
and sta2x11, because these dma_ops are also using
dma_generic_alloc_coherent().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
arch/x86/Kconfig | 2 +-
arch/x86/include/asm/swiotlb.h | 7 +++++++
arch/x86/kernel/amd_gart_64.c | 2 +-
arch/x86/kernel/pci-swiotlb.c | 9 ++++++---
arch/x86/pci/sta2x11-fixup.c | 6 ++----
5 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 48ae099..9e841a5 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -47,7 +47,7 @@ config X86
select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if SMP
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_FRAME_POINTERS
- select HAVE_DMA_CONTIGUOUS if !SWIOTLB
+ select HAVE_DMA_CONTIGUOUS
select HAVE_KRETPROBES
select HAVE_OPTPROBES
select HAVE_KPROBES_ON_FTRACE
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index 977f176..ab05d73 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -29,4 +29,11 @@ static inline void pci_swiotlb_late_init(void)
static inline void dma_mark_clean(void *addr, size_t size) {}
+extern void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flags,
+ struct dma_attrs *attrs);
+extern void x86_swiotlb_free_coherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_addr,
+ struct dma_attrs *attrs);
+
#endif /* _ASM_X86_SWIOTLB_H */
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index b574b29..8e3842f 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -512,7 +512,7 @@ gart_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_addr, struct dma_attrs *attrs)
{
gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL);
- free_pages((unsigned long)vaddr, get_order(size));
+ dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
}
static int gart_mapping_error(struct device *dev, dma_addr_t dma_addr)
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 4853440..284d506 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -16,7 +16,7 @@
int swiotlb __read_mostly;
-static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
+void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
struct dma_attrs *attrs)
{
@@ -30,11 +30,14 @@ static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
}
-static void x86_swiotlb_free_coherent(struct device *dev, size_t size,
+void x86_swiotlb_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_addr,
struct dma_attrs *attrs)
{
- swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+ if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
+ swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+ else
+ dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
}
static struct dma_map_ops swiotlb_dma_ops = {
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 9d8a509..5ceda85 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -173,9 +173,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
{
void *vaddr;
- vaddr = dma_generic_alloc_coherent(dev, size, dma_handle, flags, attrs);
- if (!vaddr)
- vaddr = swiotlb_alloc_coherent(dev, size, dma_handle, flags);
+ vaddr = x86_swiotlb_alloc_coherent(dev, size, dma_handle, flags, attrs);
*dma_handle = p2a(*dma_handle, to_pci_dev(dev));
return vaddr;
}
@@ -183,7 +181,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
/* We have our own dma_ops: the same as swiotlb but from alloc (above) */
static struct dma_map_ops sta2x11_dma_ops = {
.alloc = sta2x11_swiotlb_alloc_coherent,
- .free = swiotlb_free_coherent,
+ .free = x86_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
.unmap_page = swiotlb_unmap_page,
.map_sg = swiotlb_map_sg_attrs,
--
1.8.3.1

87
kernel-std/centos/patches/x86-make-dma_alloc_coherent-return-zeroed-memory-if-.patch
View File

@@ -1,87 +0,0 @@
From 2d627fa0c465b3146191ffa7e336bb1eca5d1879 Mon Sep 17 00:00:00 2001
Message-Id: <2d627fa0c465b3146191ffa7e336bb1eca5d1879.1527544850.git.Jim.Somerville@windriver.com>
In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 4 Jun 2014 16:06:48 -0700
Subject: [PATCH 14/26] x86: make dma_alloc_coherent() return zeroed memory if
CMA is enabled
This patchset enhances the DMA Contiguous Memory Allocator on x86.
Currently the DMA CMA is only supported with pci-nommu dma_map_ops and
furthermore it can't be enabled on x86_64. But I would like to allocate
big contiguous memory with dma_alloc_coherent() and tell it to the device
that requires it, regardless of which dma mapping implementation is
actually used in the system.
So this makes it work with swiotlb and intel-iommu dma_map_ops, too. And
this also extends "cma=" kernel parameter to specify placement constraint
by the physical address range of memory allocations. For example, CMA
allocates memory below 4GB by "cma=64M@0-4G", it is required for the
devices only supporting 32-bit addressing on 64-bit systems without iommu.
This patch (of 5):
Calling dma_alloc_coherent() with __GFP_ZERO must return zeroed memory.
But when the contiguous memory allocator (CMA) is enabled on x86 and the
memory region is allocated by dma_alloc_from_contiguous(), it doesn't
return zeroed memory. Because dma_generic_alloc_coherent() forgot to fill
the memory region with zero if it was allocated by
dma_alloc_from_contiguous()
Most implementations of dma_alloc_coherent() return zeroed memory
regardless of whether __GFP_ZERO is specified. So this fixes it by
unconditionally zeroing the allocated memory region.
Alternatively, we could fix dma_alloc_from_contiguous() to return zeroed
out memory and remove memset() from all caller of it. But we can't simply
remove the memset on arm because __dma_clear_buffer() is used there for
ensuring cache flushing and it is used in many places. Of course we can
do redundant memset in dma_alloc_from_contiguous(), but I think this patch
is less impact for fixing this problem.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit d92ef66c4f8fdf7a24736b1ab6c48d32de9bfc07)
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
arch/x86/kernel/pci-dma.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 77a4e62..c84ffe7 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -99,7 +99,7 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_mask = dma_alloc_coherent_mask(dev, flag);
- flag |= __GFP_ZERO;
+ flag &= ~__GFP_ZERO;
again:
page = NULL;
/* CMA can be used only in the context which permits sleeping */
@@ -130,7 +130,7 @@ again:
return NULL;
}
-
+ memset(page_address(page), 0, size);
*dma_addr = addr;
return page_address(page);
}
--
1.8.3.1

2
kernel-std/centos/srpm_path
View File

@@ -1,2 +1,2 @@
mirror:Source/kernel-3.10.0-1062.1.2.el7.src.rpm
mirror:Source/kernel-4.18.0-80.11.2.el8_0.src.rpm