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alistair23-linux/fs/ext3
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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 ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
acl.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
balloc.c ext3: Avoid underflow of in ext3_trim_fs() 2012-11-19 21:36:12 +01:00
bitmap.c ext3: use memweight() 2012-07-30 17:25:16 -07:00
dir.c fs-ext3-use-rbtree-postorder-iteration-helper-instead-of-opencoding-fix 2014-01-23 16:37:03 -08:00
ext3.h Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2012-05-25 08:14:59 -07:00
ext3_jbd.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
file.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
fsync.c ext3: Fix fsync error handling after filesystem abort. 2013-07-04 19:22:55 +02:00
hash.c ext3: return 32/64-bit dir name hash according to usage type 2012-05-15 23:34:39 +02:00
ialloc.c ext3: remove max_debt in find_group_orlov() 2012-04-11 11:12:44 +02:00
inode.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
ioctl.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
Kconfig ext3: default to ordered mode 2010-07-23 12:50:55 +02:00
Makefile
namei.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
namei.h ext3: ext3_bread usage audit 2012-10-09 23:21:42 +02:00
resize.c Ext3: return ENOMEM rather than EIO if sb_getblk fails 2013-01-21 11:19:57 +01:00
super.c fs: push sync_filesystem() down to the file system's remount_fs() 2014-03-13 10:14:33 -04:00
symlink.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
xattr.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
xattr_security.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr_trusted.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00
xattr_user.c ext3: move headers to fs/ext3/ 2012-03-31 16:03:16 -04:00