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authorTejun Heo <tj@kernel.org>2010-11-13 13:55:18 +0300
committerTejun Heo <tj@kernel.org>2010-11-13 13:55:18 +0300
commitd4d77629953eabd3c14f6fa5746f6b28babfc55f (patch)
tree38cce0d4764ecb34a9f7f49332959780e28bb786 /drivers/block
parent75f1dc0d076d1c1168f2115f1941ea627d38bd5a (diff)
downloadlinux-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 'drivers/block')
-rw-r--r--drivers/block/drbd/drbd_nl.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index fd0346090289..650e43ba4f7c 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -902,8 +902,8 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
}
}
- bdev = open_bdev_exclusive(nbc->dc.backing_dev,
- FMODE_READ | FMODE_WRITE, mdev);
+ bdev = blkdev_get_by_path(nbc->dc.backing_dev,
+ FMODE_READ | FMODE_WRITE | FMODE_EXCL, mdev);
if (IS_ERR(bdev)) {
dev_err(DEV, "open(\"%s\") failed with %ld\n", nbc->dc.backing_dev,
PTR_ERR(bdev));
@@ -920,10 +920,10 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
* should check it for you already; but if you don't, or
* someone fooled it, we need to double check here)
*/
- bdev = open_bdev_exclusive(nbc->dc.meta_dev,
- FMODE_READ | FMODE_WRITE,
- (nbc->dc.meta_dev_idx < 0) ?
- (void *)mdev : (void *)drbd_m_holder);
+ bdev = blkdev_get_by_path(nbc->dc.meta_dev,
+ FMODE_READ | FMODE_WRITE | FMODE_EXCL,
+ (nbc->dc.meta_dev_idx < 0) ?
+ (void *)mdev : (void *)drbd_m_holder);
if (IS_ERR(bdev)) {
dev_err(DEV, "open(\"%s\") failed with %ld\n", nbc->dc.meta_dev,
PTR_ERR(bdev));