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0e3b210ce1
msm-4.14/fs
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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
..
9p
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
adfs
…
affs
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-14 15:31:03 -07:00
afs
Merge remote-tracking branch 'dh/afs' into for-davem
2015-04-11 15:51:09 -04:00
autofs4
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
2015-02-22 11:43:34 -05:00
befs
fs/befs/linuxvfs.c: remove unnecessary casting
2015-02-17 14:34:50 -08:00
bfs
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
btrfs
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
cachefiles
Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
2015-02-22 11:38:41 -05:00
ceph
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
cifs
mm, mempool: do not allow atomic resizing
2015-04-14 16:49:06 -07:00
coda
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
configfs
configfs: Fix potential NULL d_inode dereference
2015-02-20 04:56:43 -05:00
cramfs
…
debugfs
debugfs: allow bad parent pointers to be passed in
2015-04-03 16:30:12 +02:00
devpts
…
dlm
netlink: make nlmsg_end() and genlmsg_end() void
2015-01-18 01:03:45 -05:00
ecryptfs
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
efivarfs
* Move efivarfs from the misc filesystem section to pseudo filesystem,
2015-01-29 19:16:40 +01:00
efs
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exofs
vfs: remove get_xip_mem
2015-02-16 17:56:03 -08:00
exportfs
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
ext2
dax: use pfn_mkwrite to update c/mtime + freeze protection
2015-04-15 16:35:20 -07:00
ext3
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
ext4
dax: use pfn_mkwrite to update c/mtime + freeze protection
2015-04-15 16:35:20 -07:00
f2fs
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
fat
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
freevxfs
…
fscache
…
fuse
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
gfs2
GFS2: merge window
2015-04-14 16:09:18 -07:00
hfs
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
hfsplus
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-14 15:31:03 -07:00
hostfs
…
hpfs
…
hppfs
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
hugetlbfs
hugetlbfs: accept subpool min_size mount option and setup accordingly
2015-04-15 16:35:18 -07:00
isofs
isofs: Fix bug in the way to check if the year is a leap year
2015-01-07 09:51:49 +01:00
jbd
…
jbd2
jbd2: complain about descriptor block checksum errors
2015-01-19 15:59:58 -05:00
jffs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-04-14 09:50:27 -07:00
jfs
fs, jfs: remove slab object constructor
2015-04-15 16:35:18 -07:00
kernfs
kernfs: handle poll correctly on 'direct_read' files.
2015-03-16 21:51:20 +01:00
lockd
Merge branch 'for-3.20' of git://linux-nfs.org/~bfields/linux
2015-02-12 10:39:41 -08:00
logfs
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minix
…
ncpfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-02-17 14:56:45 -08:00
nfs
Merge branch 'akpm' (patches from Andrew)
2015-04-14 16:49:17 -07:00
nfs_common
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nfsd
nfsd: require an explicit option to enable pNFS
2015-03-30 16:05:26 -04:00
nilfs2
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
nls
…
notify
fanotify: fix event filtering with FAN_ONDIR set
2015-03-12 18:46:08 -07:00
ntfs
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
ocfs2
Merge branch 'akpm' (patches from Andrew)
2015-04-14 16:49:17 -07:00
omfs
…
openpromfs
…
overlayfs
ovl: upper fs should not be R/O
2015-03-18 10:29:48 +01:00
proc
pagemap: do not leak physical addresses to non-privileged userspace
2015-03-17 09:31:30 -07:00
pstore
pstore: Fix the ramoops module parameters update
2015-03-16 11:14:10 -07:00
qnx4
…
qnx6
…
quota
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2015-02-10 15:52:38 -08:00
ramfs
fs: remove mapping->backing_dev_info
2015-01-20 14:03:05 -07:00
reiserfs
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
romfs
fs: remove mapping->backing_dev_info
2015-01-20 14:03:05 -07:00
squashfs
Squashfs: Add LZ4 compression configuration option
2014-11-27 18:48:44 +00:00
sysfs
sysfs: Only accept read/write permissions for file attributes
2015-03-25 13:27:57 +01:00
sysv
…
tracefs
tracing: Have mkdir and rmdir be part of tracefs
2015-02-03 12:48:43 -05:00
ubifs
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
udf
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
ufs
fs/ufs/super.c: fix potential race condition
2015-02-17 14:34:51 -08:00
xfs
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
aio.c
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-14 15:31:03 -07:00
anon_inodes.c
…
attr.c
…
bad_inode.c
don't bother with most of the bad_file_ops methods
2015-02-20 04:03:58 -05:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE
2015-04-14 16:49:05 -07:00
binfmt_em86.c
syscalls: implement execveat() system call
2014-12-13 12:42:51 -08:00
binfmt_flat.c
…
binfmt_misc.c
unfuck binfmt_misc.c (broken by commit e6084d4)
2014-12-17 08:27:14 -05:00
binfmt_script.c
syscalls: implement execveat() system call
2014-12-13 12:42:51 -08:00
block_dev.c
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
buffer.c
page_writeback: clean up mess around cancel_dirty_page()
2015-04-14 16:49:01 -07:00
char_dev.c
fs: introduce f_op->mmap_capabilities for nommu mmap support
2015-01-20 14:02:58 -07:00
compat_binfmt_elf.c
…
compat_ioctl.c
Bluetooth: bnep: Add support for get bnep features via ioctl
2015-04-03 23:21:34 +02:00
compat.c
…
coredump.c
coredump: Fix do_coredump() comment
2015-03-06 23:10:29 +01:00
dax.c
dax: use pfn_mkwrite to update c/mtime + freeze protection
2015-04-15 16:35:20 -07:00
dcache.c
dcache: return -ESTALE not -EBUSY on distributed fs race
2015-04-11 22:24:33 -04:00
dcookies.c
…
direct-io.c
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
drop_caches.c
vmscan: per memory cgroup slab shrinkers
2015-02-12 18:54:09 -08:00
eventfd.c
eventfd: don't take the spinlock in eventfd_poll
2015-02-17 14:34:52 -08:00
eventpoll.c
epoll: optimize setting task running after blocking
2015-02-13 21:21:40 -08:00
exec.c
fs: create proper filename objects using getname_kernel()
2015-01-23 00:22:20 -05:00
fcntl.c
vfs: renumber FMODE_NONOTIFY and add to uniqueness check
2015-01-08 15:10:52 -08:00
fhandle.c
…
file_table.c
…
file.c
fs/file.c: replace get_unused_fd() with get_unused_fd_flags(0)
2014-12-10 17:41:10 -08:00
filesystems.c
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fs_pin.c
switch the IO-triggering parts of umount to fs_pin
2015-01-25 23:17:29 -05:00
fs_struct.c
…
fs-writeback.c
fs: add dirtytime_expire_seconds sysctl
2015-03-17 12:23:32 -04:00
inode.c
Merge branch 'lazytime' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-02-17 16:12:34 -08:00
internal.h
trylock_super(): replacement for grab_super_passive()
2015-02-22 11:38:42 -05:00
ioctl.c
fsioctl.c: make generic_block_fiemap() signal-tolerant
2015-02-10 14:30:30 -08:00
Kconfig
dax: does not work correctly with virtual aliasing caches
2015-02-16 17:56:04 -08:00
Kconfig.binfmt
mm: split ET_DYN ASLR from mmap ASLR
2015-04-14 16:49:05 -07:00
libfs.c
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
locks.c
locks: fix file_lock deletion inside loop
2015-03-27 07:18:20 -04:00
Makefile
This adds the new tracefs file system. This has been in linux-next for
2015-04-14 10:22:29 -07:00
mbcache.c
…
mount.h
switch the IO-triggering parts of umount to fs_pin
2015-01-25 23:17:29 -05:00
mpage.c
…
namei.c
remove incorrect comment in lookup_one_len()
2015-04-11 22:24:30 -04:00
namespace.c
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
no-block.c
…
nsfs.c
take the targets of /proc/*/ns/* symlinks to separate fs
2014-12-10 21:30:20 -05:00
open.c
NFS: fix BUG() crash in notify_change() with patch to chown_common()
2015-04-11 22:24:34 -04:00
pipe.c
fs: move struct kiocb to fs.h
2015-03-25 20:28:11 -04:00
pnode.c
mnt: Move the clear of MNT_LOCKED from copy_tree to it's callers.
2014-12-02 10:46:50 -06:00
pnode.h
…
posix_acl.c
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
proc_namespace.c
vfs: add support for a lazytime mount option
2015-02-05 02:45:00 -05:00
read_write.c
switch {compat_,}do_readv_writev() to {compat_,}import_iovec()
2015-04-11 22:27:12 -04:00
readdir.c
…
select.c
all arches, signal: move restart_block to struct task_struct
2015-02-12 18:54:12 -08:00
seq_file.c
bitmap, cpumask, nodemask: remove dedicated formatting functions
2015-02-13 21:21:39 -08:00
signalfd.c
…
splice.c
vmsplice_to_user(): switch to import_iovec()
2015-04-11 22:27:11 -04:00
stack.c
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stat.c
switch security_inode_getattr() to struct path *
2015-04-11 22:24:32 -04:00
statfs.c
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super.c
cleancache: remove limit on the number of cleancache enabled filesystems
2015-04-14 16:49:03 -07:00
sync.c
vfs: add support for a lazytime mount option
2015-02-05 02:45:00 -05:00
timerfd.c
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utimes.c
…
xattr.c
…