Theodore Ts'o 47f97418d5 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 Git-commit: e57e5b786fcfe069afdfa8ae3abb1287ffe3d687 Git-repo: https://android.googlesource.com/kernel/common.git Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>		2015-09-16 18:20:11 +05:30
..
cluster	ocfs2: convert to idr_alloc()	2013-02-27 19:10:19 -08:00
dlm	ocfs2/dlm: do not get resource spinlock if lockres is new	2014-10-05 14:54:14 -07:00
dlmfs	fs: Limit sys_mount to only request filesystem modules.	2013-03-03 19:36:31 -08:00
Kconfig	…
Makefile	…
acl.c	ocfs2: Handle kuids and kgids in acl/xattr conversions.	2013-02-13 06:00:56 -08:00
acl.h	…
alloc.c	ocfs2: remove kfree() redundant null checks	2013-02-21 17:22:19 -08:00
alloc.h	…
aops.c	ocfs2: fix journal commit deadlock	2015-01-16 06:59:00 -08:00
aops.h	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
blockcheck.c	…
blockcheck.h	…
buffer_head_io.c	ocfs2: do not put bh when buffer_uptodate failed	2014-05-06 07:55:32 -07:00
buffer_head_io.h	…
dcache.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
dcache.h	…
dir.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
dir.h	…
dlmglue.c	aio: remove retry-based AIO	2013-05-07 18:38:27 -07:00
dlmglue.h	…
export.c	fs: encode_fh: return FILEID_INVALID if invalid fid_type	2013-02-26 02:46:10 -05:00
export.h	…
extent_map.c	ocfs2: fix the end cluster offset of FIEMAP	2013-09-26 17:18:28 -07:00
extent_map.h	…
file.c	ocfs2 syncs the wrong range...	2014-03-23 21:38:09 -07:00
file.h	…
heartbeat.c	…
heartbeat.h	…
inode.c	ocfs2: Convert uid and gids between in core and on disk inodes	2013-02-13 06:00:58 -08:00
inode.h	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
ioctl.c	ocfs2: fix error return code in ocfs2_info_handle_freefrag()	2013-04-29 15:54:27 -07:00
ioctl.h	…
journal.c	ocfs2: remove kfree() redundant null checks	2013-02-21 17:22:19 -08:00
journal.h	…
localalloc.c	ocfs2: remove kfree() redundant null checks	2013-02-21 17:22:19 -08:00
localalloc.h	…
locks.c	…
locks.h	…
mmap.c	kill f_vfsmnt	2013-02-26 02:46:10 -05:00
mmap.h	…
move_extents.c	ocfs2: fix NULL dereference for moving extents	2013-04-29 15:54:27 -07:00
move_extents.h	…
namei.c	fs/ocfs2/namei.c: remove unecessary ERROR when removing non-empty directory	2013-06-12 16:29:45 -07:00
namei.h	…
ocfs1_fs_compat.h	…
ocfs2.h	…
ocfs2_fs.h	…
ocfs2_ioctl.h	…
ocfs2_lockid.h	…
ocfs2_lockingver.h	…
ocfs2_trace.h	…
quota.h	…
quota_global.c	ocfs2: fix quota file corruption	2014-03-23 21:38:09 -07:00
quota_local.c	ocfs2: fix quota file corruption	2014-03-23 21:38:09 -07:00
refcounttree.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
refcounttree.h	…
reservations.c	…
reservations.h	…
resize.c	…
resize.h	…
slot_map.c	…
slot_map.h	…
stack_o2cb.c	ocfs2: remove kfree() redundant null checks	2013-02-21 17:22:19 -08:00
stack_user.c	…
stackglue.c	…
stackglue.h	…
suballoc.c	ocfs2: ac->ac_allow_chain_relink=0 won't disable group relink	2013-02-27 19:10:09 -08:00
suballoc.h	ocfs2: ac->ac_allow_chain_relink=0 won't disable group relink	2013-02-27 19:10:09 -08:00
super.c	fs: push sync_filesystem() down to the file system's remount_fs()	2015-09-16 18:20:11 +05:30
super.h	…
symlink.c	ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path	2013-02-26 02:46:12 -05:00
symlink.h	…
sysfile.c	ocfs2: remove kfree() redundant null checks	2013-02-21 17:22:19 -08:00
sysfile.h	…
uptodate.c	…
uptodate.h	…
ver.c	…
ver.h	…
xattr.c	ocfs2: xattr: fix inlined xattr reflink	2013-07-21 18:21:29 -07:00
xattr.h	…