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Filename Latest commit message Latest commit date
James Morse 7258ae5c5a mm/memory-failure.c: use compound_head() flags for huge pages
memory_failure() chooses a recovery action function based on the page
flags.  For huge pages it uses the tail page flags which don't have
anything interesting set, resulting in:

> Memory failure: 0x9be3b4: Unknown page state
> Memory failure: 0x9be3b4: recovery action for unknown page: Failed

Instead, save a copy of the head page's flags if this is a huge page,
this means if there are no relevant flags for this tail page, we use the
head pages flags instead.  This results in the me_huge_page() recovery
action being called:

> Memory failure: 0x9b7969: recovery action for huge page: Delayed

For hugepages that have not yet been allocated, this allows the hugepage
to be dequeued.

Fixes: 524fca1e73 ("HWPOISON: fix misjudgement of page_action() for errors on mlocked pages")
Link: http://lkml.kernel.org/r/20170524130204.21845-1-james.morse@arm.com
Signed-off-by: James Morse <james.morse@arm.com>
Tested-by: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-17 06:37:05 +09:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 18:09:47 +09:00
block block: Fix a blk_exit_rl() regression 2017-06-14 13:27:50 -06:00
certs
crypto crypto : asymmetric_keys : verify_pefile:zero memory content before freeing 2017-06-09 13:29:50 +10:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 18:09:47 +09:00
drivers MMC host: 2017-06-16 17:49:52 +09:00
firmware
fs A fix from Nic for a race seen in production (including a stable tag). 2017-06-16 18:45:47 +09:00
include A fix from Nic for a race seen in production (including a stable tag). 2017-06-16 18:45:47 +09:00
init
ipc
kernel Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq' 2017-06-15 01:51:33 +02:00
lib Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-06-15 17:54:51 +09:00
mm mm/memory-failure.c: use compound_head() flags for huge pages 2017-06-17 06:37:05 +09:00
net net: don't global ICMP rate limit packets originating from loopback 2017-06-14 15:33:58 -04:00
samples
scripts scripts/gdb: make lx-dmesg command work (reliably) 2017-06-02 15:07:38 -07:00
security selinux: fix double free in selinux_parse_opts_str() 2017-06-13 17:34:22 +10:00
sound ALSA: timer: Fix missing queue indices reset at SNDRV_TIMER_IOCTL_SELECT 2017-06-07 10:25:23 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 18:09:47 +09:00
usr
virt KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages 2017-06-06 15:28:40 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS A few overdue GPIO patches for the v4.12 kernel: 2017-06-11 11:34:27 -07:00
Makefile Linux 4.12-rc5 2017-06-11 16:48:20 -07:00
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.