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alistair23-linux/fs/f2fs
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Theodore Ts'o 02b9984d64 fs: push sync_filesystem() down to the file system's remount_fs() 
Previously, the no-op "mount -o mount /dev/xxx" operation when the
file system is already mounted read-write causes an implied,
unconditional syncfs().  This seems pretty stupid, and it's certainly
documented or guaraunteed to do this, nor is it particularly useful,
except in the case where the file system was mounted rw and is getting
remounted read-only.

However, it's possible that there might be some file systems that are
actually depending on this behavior.  In most file systems, it's
probably fine to only call sync_filesystem() when transitioning from
read-write to read-only, and there are some file systems where this is
not needed at all (for example, for a pseudo-filesystem or something
like romfs).

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: linux-fsdevel@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Cc: Jan Kara <jack@suse.cz>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Anders Larsen <al@alarsen.net>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: Petr Vandrovec <petr@vandrovec.name>
Cc: xfs@oss.sgi.com
Cc: linux-btrfs@vger.kernel.org
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Cc: codalist@coda.cs.cmu.edu
Cc: linux-ext4@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: fuse-devel@lists.sourceforge.net
Cc: cluster-devel@redhat.com
Cc: linux-mtd@lists.infradead.org
Cc: jfs-discussion@lists.sourceforge.net
Cc: linux-nfs@vger.kernel.org
Cc: linux-nilfs@vger.kernel.org
Cc: linux-ntfs-dev@lists.sourceforge.net
Cc: ocfs2-devel@oss.oracle.com
Cc: reiserfs-devel@vger.kernel.org
2014-03-13 10:14:33 -04:00
..
acl.c f2fs: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
acl.h f2fs: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
checkpoint.c f2fs: introduce NODE_MAPPING for code consistency 2014-01-22 18:41:08 +09:00
data.c Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block 2014-01-30 11:19:05 -08:00
debug.c f2fs: introduce NODE_MAPPING for code consistency 2014-01-22 18:41:08 +09:00
dir.c f2fs: move a branch for code redability 2014-01-22 18:41:07 +09:00
f2fs.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-01-28 08:38:04 -08:00
file.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-01-28 08:38:04 -08:00
gc.c f2fs: remove the needless parameter of f2fs_wait_on_page_writeback 2014-01-14 17:45:54 +09:00
gc.h f2fs: add a sysfs entry to control max_victim_search 2014-01-08 13:45:08 +09:00
hash.c
inline.c f2fs: remove the needless parameter of f2fs_wait_on_page_writeback 2014-01-14 17:45:54 +09:00
inode.c f2fs: clean checkpatch warnings 2014-01-20 10:27:12 +09:00
Kconfig f2fs: introduce CONFIG_F2FS_CHECK_FS for BUG_ON control 2013-10-29 15:43:01 +09:00
Makefile f2fs: key functions to handle inline data 2013-12-26 20:40:09 +09:00
namei.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-01-28 08:38:04 -08:00
node.c f2fs: drop obsolete node page when it is truncated 2014-01-23 08:04:21 +09:00
node.h f2fs: update several comments 2013-12-23 10:26:03 +09:00
recovery.c f2fs: clean checkpatch warnings 2014-01-20 10:27:12 +09:00
segment.c f2fs: add help function META_MAPPING 2014-01-22 18:41:07 +09:00
segment.h f2fs: clean checkpatch warnings 2014-01-20 10:27:12 +09:00
super.c fs: push sync_filesystem() down to the file system's remount_fs() 2014-03-13 10:14:33 -04:00
xattr.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-01-28 08:38:04 -08:00
xattr.h f2fs: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00