WSL2-Linux-Kernel

The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)

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Mike Kravetz e7c5809779 hugetlbfs: revert "Use i_mmap_rwsem to fix page fault/truncate race" This reverts `c86aa7bbfd` The reverted commit caused ABBA deadlocks when file migration raced with file eviction for specific hugetlbfs files. This was discovered with a modified version of the LTP move_pages12 test. The purpose of the reverted patch was to close a long existing race between hugetlbfs file truncation and page faults. After more analysis of the patch and impacted code, it was determined that i_mmap_rwsem can not be used for all required synchronization. Therefore, revert this patch while working an another approach to the underlying issue. Link: http://lkml.kernel.org/r/20190103235452.29335-1-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reported-by: Jan Stancek <jstancek@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Hugh Dickins <hughd@google.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Prakash Sangappa <prakash.sangappa@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-01-08 17:15:11 -08:00
Documentation	zram: idle writeback fixes and cleanup	2019-01-08 17:15:10 -08:00
LICENSES	…
arch	kasan, arm64: use ARCH_SLAB_MINALIGN instead of manual aligning	2019-01-08 17:15:11 -08:00
block	…
certs	kbuild: remove redundant target cleaning on failure	2019-01-06 09:46:51 +09:00
crypto	…
drivers	zram: idle writeback fixes and cleanup	2019-01-08 17:15:10 -08:00
firmware	kbuild: change filechk to surround the given command with { }	2019-01-06 09:46:51 +09:00
fs	hugetlbfs: revert "Use i_mmap_rwsem to fix page fault/truncate race"	2019-01-08 17:15:11 -08:00
include	Kbuild late updates for v4.21	2019-01-06 16:33:10 -08:00
init	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
ipc	…
kernel	fork, memcg: fix cached_stacks case	2019-01-08 17:15:11 -08:00
lib	Kbuild late updates for v4.21	2019-01-06 16:33:10 -08:00
mm	hugetlbfs: revert "Use i_mmap_rwsem to fix page fault/truncate race"	2019-01-08 17:15:11 -08:00
net	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
samples	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2019-01-05 17:53:40 -08:00
scripts	kconfig: rename generated .conf-cfg to conf-cfg	2019-01-06 10:47:09 +09:00
security	…
sound	…
tools	tools/vm/page_owner: use page_owner_sort in the use example	2019-01-08 17:15:11 -08:00
usr	…
virt	…
.clang-format	…
.cocciconfig	…
.get_maintainer.ignore	…
.gitattributes	…
.gitignore	…
.mailmap	…
COPYING	…
CREDITS	…
Kbuild	kbuild: use assignment instead of define ... endef for filechk_* rules	2019-01-06 10:22:35 +09:00
Kconfig	…
MAINTAINERS	chrome platform changes for v4.21	2019-01-06 11:40:06 -08:00
Makefile	Linux 5.0-rc1	2019-01-06 17:08:20 -08:00
README	…

README

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

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

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.