WSL2-Linux-Kernel/include
Boaz Harrosh 0e3b210ce1 dax: use pfn_mkwrite to update c/mtime + freeze protection
From: Yigal Korman <yigal@plexistor.com>

[v1]
Without this patch, c/mtime is not updated correctly when mmap'ed page is
first read from and then written to.

A new xfstest is submitted for testing this (generic/080)

[v2]
Jan Kara has pointed out that if we add the
sb_start/end_pagefault pair in the new pfn_mkwrite we
are then fixing another bug where: A user could start
writing to the page while filesystem is frozen.

Signed-off-by: Yigal Korman <yigal@plexistor.com>
Signed-off-by: Boaz Harrosh <boaz@plexistor.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15 16:35:20 -07:00
..
acpi Merge branch 'device-properties' 2015-04-13 00:35:54 +02:00
asm-generic Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-04-14 21:03:26 -07:00
clocksource
crypto crypto: af_alg - Allow to link sgl 2015-03-23 16:41:37 -04:00
drm drm/ttm: device address space != CPU address space 2015-03-05 09:04:39 +10:00
dt-bindings This is the bulk of pin control changes for the v4.1 development 2015-04-14 17:58:15 -07:00
keys
kvm KVM/ARM changes for v4.1: 2015-04-07 18:09:20 +02:00
linux dax: use pfn_mkwrite to update c/mtime + freeze protection 2015-04-15 16:35:20 -07:00
math-emu
media [media] media: atmel-isi: increase the burst length to improve the performance 2015-03-02 13:27:11 -03:00
memory
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-04-14 18:51:19 -04:00
pcmcia
ras
rdma
rxrpc RxRPC: Handle VERSION Rx protocol packets 2015-04-01 16:31:26 +01:00
scsi libata-eh: Set 'information' field for autosense 2015-03-27 11:59:22 -04:00
soc pm: at91: Workaround DDRSDRC self-refresh bug with LPDDR1 memories. 2015-03-03 19:43:59 +01:00
sound
target target: do not reject FUA CDBs when write cache is enabled but emulate_write_cache is 0 2015-03-19 23:26:46 -07:00
trace mm: cma: add trace events for CMA allocations and freeings 2015-04-15 16:35:19 -07:00
uapi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-04-15 09:00:47 -07:00
video OMAPDSS: fix regression with display sysfs files 2015-02-26 10:23:15 +02:00
xen xen: Remove trailing semicolon from xenbus_register_frontend() definition 2015-03-02 10:38:59 +00:00
Kbuild