commit d9457dc056249913a7abe8b71dc09e427e590e35
author Jan Kara <jack@suse.cz> Tue Jun 12 16:20:39 2012 +0200
committer Al Viro <viro@zeniv.linux.org.uk> Tue Jul 31 09:45:48 2012 +0400
tree 8f0c6681d4c5802a6f5a124111b9d3958f0b281b
parent 8e8ad8a57c75f3bda2d03a4c4396a9a7024ad275

xfs: Convert to new freezing code

Generic code now blocks all writers from standard write paths. So we add
blocking of all writers coming from ioctl (we get a protection of ioctl against
racing remount read-only as a bonus) and convert xfs_file_aio_write() to a
non-racy freeze protection. We also keep freeze protection on transaction
start to block internal filesystem writes such as removal of preallocated
blocks.

CC: Ben Myers <bpm@sgi.com>
CC: Alex Elder <elder@kernel.org>
CC: xfs@oss.sgi.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>