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
..
cache.c	coda: Cache permisions in struct coda_inode_info in a kuid_t.	2013-02-13 06:00:54 -08:00
cnode.c	coda: switch coda_cnode_make() to sane API as well, clean coda_lookup()	2012-01-10 11:13:16 -05:00
coda_cache.h	take coda-private headers out of include/linux	2011-01-12 20:02:48 -05:00
coda_fs_i.h	coda: Cache permisions in struct coda_inode_info in a kuid_t.	2013-02-13 06:00:54 -08:00
coda_int.h	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
coda_linux.c	coda: Restrict coda messages to the initial user namespace	2013-02-13 06:00:53 -08:00
coda_linux.h	coda_revalidate_inode(): switch to passing inode...	2013-11-09 00:16:21 -05:00
dir.c	coda_revalidate_inode(): switch to passing inode...	2013-11-09 00:16:21 -05:00
file.c	file->f_op is never NULL...	2013-10-24 23:34:54 -04:00
inode.c	fs: push sync_filesystem() down to the file system's remount_fs()	2014-03-13 10:14:33 -04:00
Kconfig	fs/Kconfig: move coda out	2009-01-22 13:16:01 +03:00
Makefile	fs: change to new flag variable	2011-03-17 14:02:57 +01:00
pioctl.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
psdev.c	coda: Restrict coda messages to the initial user namespace	2013-02-13 06:00:53 -08:00
symlink.c	take coda-private headers out of include/linux	2011-01-12 20:02:48 -05:00
sysctl.c	codafs: fix build break when CONFIG_PROC_SYSCTL=n	2011-03-25 17:45:16 -07:00
upcall.c	coda: Restrict coda messages to the initial user namespace	2013-02-13 06:00:53 -08:00