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author | Tejun Heo <tj@kernel.org> | 2010-11-13 10:55:18 (GMT) |
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committer | Tejun Heo <tj@kernel.org> | 2010-11-13 10:55:18 (GMT) |
commit | d4d77629953eabd3c14f6fa5746f6b28babfc55f (patch) | |
tree | 38cce0d4764ecb34a9f7f49332959780e28bb786 /kernel/power | |
parent | 75f1dc0d076d1c1168f2115f1941ea627d38bd5a (diff) | |
download | linux-fsl-qoriq-d4d77629953eabd3c14f6fa5746f6b28babfc55f.tar.xz |
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>
Diffstat (limited to 'kernel/power')
-rw-r--r-- | kernel/power/swap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 513a77f1..b019609 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -907,8 +907,8 @@ int swsusp_check(void) { int error; - hib_resume_bdev = open_by_devnum(swsusp_resume_device, - FMODE_READ, NULL); + hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device, + FMODE_READ, NULL); if (!IS_ERR(hib_resume_bdev)) { set_blocksize(hib_resume_bdev, PAGE_SIZE); clear_page(swsusp_header); |