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Zi Yan dd8a67f9a3 mm/huge_memory.c: deposit page table when copying a PMD migration entry
We need to deposit pre-allocated PTE page table when a PMD migration
entry is copied in copy_huge_pmd().  Otherwise, we will leak the
pre-allocated page and cause a NULL pointer dereference later in
zap_huge_pmd().

The missing counters during PMD migration entry copy process are added
as well.

The bug report is here: https://lkml.org/lkml/2017/10/29/214

Link: http://lkml.kernel.org/r/20171030144636.4836-1-zi.yan@sent.com
Fixes: 84c3fc4e9c ("mm: thp: check pmd migration entry in common path")
Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-03 07:39:19 -07:00
Documentation Revert "PM / QoS: Fix device resume latency PM QoS" 2017-10-31 18:35:40 +01:00
arch Revert "x86: do not use cpufreq_quick_get() for /proc/cpuinfo "cpu MHz"" 2017-11-02 14:06:32 -07:00
block License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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crypto License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drivers License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs fs/hugetlbfs/inode.c: fix hwpoison reserve accounting 2017-11-03 07:39:19 -07:00
include License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
init License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
ipc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kernel License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
lib License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
mm mm/huge_memory.c: deposit page table when copying a PMD migration entry 2017-11-03 07:39:19 -07:00
net License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
samples License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
scripts Kbuild: don't pass "-C" to preprocessor when processing linker scripts 2017-11-02 14:10:37 -07:00
security License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
sound License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
tools License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
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.gitignore kbuild: Add support to generate LLVM assembly files 2017-04-25 08:13:52 +09:00
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COPYING
CREDITS selinux/stable-4.14 PR 20170831 2017-09-12 13:21:00 -07:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS MAINTAINERS: Remove Yotam from mlxfw 2017-11-01 12:19:03 +09:00
Makefile License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.