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
..
aops.c	mm: change invalidatepage prototype to accept length	2013-05-21 23:17:23 -04:00
aops.h
attrib.c	ntfs: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:25 +08:00
attrib.h
bitmap.c
bitmap.h
collate.c
collate.h
compress.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
debug.c
debug.h	treewide: use __printf not __attribute__((format(printf,...)))	2011-10-31 17:30:54 -07:00
dir.c	[readdir] convert ntfs	2013-06-29 12:56:48 +04:00
dir.h
endian.h
file.c	fix O_SYNC|O_APPEND syncing the wrong range on write()	2014-02-09 15:18:09 -05:00
index.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
index.h
inode.c	iget/iget5: don't bother with ->i_lock until we find a match	2013-11-09 00:16:31 -05:00
inode.h	ntfs: drop vmtruncate	2012-12-20 18:40:55 -05:00
Kconfig
layout.h	Typos: change aditional to additional.	2012-02-21 11:40:36 +01:00
lcnalloc.c
lcnalloc.h
logfile.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
logfile.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
Makefile	fs: change to new flag variable	2011-03-17 14:02:57 +01:00
malloc.h
mft.c	NTFS: Correct two spelling errors "dealocate" to "deallocate" in mft.c.	2012-02-24 09:17:09 +00:00
mft.h
mst.c
namei.c	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
ntfs.h
quota.c
quota.h
runlist.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
runlist.h
super.c	fs: push sync_filesystem() down to the file system's remount_fs()	2014-03-13 10:14:33 -04:00
sysctl.c
sysctl.h
time.h
types.h
unistr.c
upcase.c
usnjrnl.c
usnjrnl.h
volume.h	userns: Convert ntfs to use kuid and kgid where appropriate	2012-09-21 03:13:15 -07:00