linux/fs/logfs
Tejun Heo d4d7762995 block: clean up blkdev_get() wrappers and their users
After recent blkdev_get() modifications, open_by_devnum() and
open_bdev_exclusive() are simple wrappers around blkdev_get().
Replace them with blkdev_get_by_dev() and blkdev_get_by_path().

blkdev_get_by_dev() is identical to open_by_devnum().
blkdev_get_by_path() is slightly different in that it doesn't
automatically add %FMODE_EXCL to @mode.

All users are converted.  Most conversions are mechanical and don't
introduce any behavior difference.  There are several exceptions.

* btrfs now sets FMODE_EXCL in btrfs_device->mode, so there's no
  reason to OR it explicitly on blkdev_put().

* gfs2, nilfs2 and the generic mount_bdev() now set FMODE_EXCL in
  sb->s_mode.

* With the above changes, sb->s_mode now always should contain
  FMODE_EXCL.  WARN_ON_ONCE() added to kill_block_super() to detect
  errors.

The new blkdev_get_*() functions are with proper docbook comments.
While at it, add function description to blkdev_get() too.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Joern Engel <joern@lazybastard.org>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Jan Kara <jack@suse.cz>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp>
Cc: reiserfs-devel@vger.kernel.org
Cc: xfs-masters@oss.sgi.com
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
2010-11-13 11:55:18 +01:00
..
Kconfig
Makefile
compr.c
dev_bdev.c block: clean up blkdev_get() wrappers and their users 2010-11-13 11:55:18 +01:00
dev_mtd.c logfs: fix a leak in get_sb 2010-10-29 04:16:48 -04:00
dir.c new helper: ihold() 2010-10-25 21:26:11 -04:00
file.c logfs: kill BKL 2010-08-14 00:24:24 +02:00
gc.c logfs: handle powerfail on NAND flash 2010-05-07 19:38:40 +02:00
inode.c Make ->drop_inode() just return whether inode needs to be dropped 2010-08-09 16:48:35 -04:00
journal.c logfs: get rid of magical inodes 2010-08-09 16:48:26 -04:00
logfs.h fs: logfs: Fix up MTD=y build. 2010-11-01 16:34:56 -04:00
logfs_abi.h fix "seperate" typos in comments 2010-05-10 11:56:30 +02:00
readwrite.c convert logfs to ->evict_inode() 2010-08-09 16:48:28 -04:00
segment.c logfs: get rid of magical inodes 2010-08-09 16:48:26 -04:00
super.c switch logfs to ->mount() 2010-10-29 04:16:51 -04:00