Theodore Ts'o c51e428eea 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 Change-Id: I03b43c745f82fce2cd3e0856c42eda70d94a45f8		2020-11-29 16:11:45 +03:00
..
acl.c	BACKPORT: posix_acl: Clear SGID bit when setting file permissions	2017-06-26 20:26:17 +03:00
acl.h
checkpoint.c	f2fs: split sync_node_pages with fsync_node_pages	2016-10-29 23:12:38 +08:00
data.c	f2fs: avoid writing 0'th page in volatile writes	2016-10-29 23:12:38 +08:00
debug.c	f2fs: monitor the number of background checkpoint	2016-10-29 23:12:25 +08:00
dir.c	f2fs: clean up opened code with f2fs_update_dentry	2016-10-29 23:12:36 +08:00
extent_cache.c	f2fs: introduce f2fs_update_data_blkaddr for cleanup	2016-10-29 23:12:32 +08:00
f2fs.h	f2fs: set fsync mark only for the last dnode	2016-10-29 23:12:38 +08:00
file.c	f2fs: set fsync mark only for the last dnode	2016-10-29 23:12:38 +08:00
gc.c	f2fs: split sync_node_pages with fsync_node_pages	2016-10-29 23:12:38 +08:00
gc.h	f2fs: detect idle time depending on user behavior	2016-10-29 23:12:25 +08:00
hash.c
inline.c	fs crypto: move per-file encryption from f2fs tree to fs/crypto	2016-10-29 23:12:35 +08:00
inode.c	fs crypto: move per-file encryption from f2fs tree to fs/crypto	2016-10-29 23:12:35 +08:00
Kconfig	fs crypto: move per-file encryption from f2fs tree to fs/crypto	2016-10-29 23:12:35 +08:00
Makefile	fs crypto: move per-file encryption from f2fs tree to fs/crypto	2016-10-29 23:12:35 +08:00
namei.c	don't pass nameidata to ->create()	2018-12-07 22:28:00 +04:00
node.c	f2fs: set fsync mark only for the last dnode	2016-10-29 23:12:38 +08:00
node.h	f2fs: use wait_for_stable_page to avoid contention	2016-10-29 23:12:28 +08:00
recovery.c	f2fs: set fsync mark only for the last dnode	2016-10-29 23:12:38 +08:00
segment.c	f2fs: unset atomic/volatile flag in f2fs_release_file	2016-10-29 23:12:38 +08:00
segment.h	f2fs: split journal cache from curseg cache	2016-10-29 23:12:31 +08:00
shrinker.c	f2fs: speed up shrinking extent tree entries	2016-10-29 23:12:22 +08:00
super.c	fs: push sync_filesystem() down to the file system's remount_fs()	2020-11-29 16:11:45 +03:00
trace.c	f2fs: trace old block address for CoWed page	2016-10-29 23:12:32 +08:00
trace.h
xattr.c	f2fs: use wait_for_stable_page to avoid contention	2016-10-29 23:12:28 +08:00
xattr.h	f2fs: add missing argument to f2fs_setxattr stub	2016-10-29 23:12:36 +08:00