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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-17 15:52:51 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-17 15:52:51 -0800
commitd65773b22b749252b2805dcf96bdeb951a9481d8 (patch)
tree1839656e894933267e7466e32ba6ad73b24fa60a /fs/btrfs/volumes.c
parentf9156c7288e2d11501ded4d7fe6d9a3a41ee4057 (diff)
parentf84a8bd60e3ee49eacc9ba824babf149ba3dad7e (diff)
Merge branch 'btrfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'btrfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: btrfs: take allocation of ->tree_root into open_ctree() btrfs: let ->s_fs_info point to fs_info, not root... btrfs: consolidate failure exits in btrfs_mount() a bit btrfs: make free_fs_info() call ->kill_sb() unconditional btrfs: merge free_fs_info() calls on fill_super failures btrfs: kill pointless reassignment of ->s_fs_info in btrfs_fill_super() btrfs: make open_ctree() return int btrfs: sanitizing ->fs_info, part 5 btrfs: sanitizing ->fs_info, part 4 btrfs: sanitizing ->fs_info, part 3 btrfs: sanitizing ->fs_info, part 2 btrfs: sanitizing ->fs_info, part 1 btrfs: fix a deadlock in btrfs_scan_one_device() btrfs: fix mount/umount race btrfs: get ->kill_sb() of its own btrfs: preparation to fixing mount/umount race
Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 7ffdb154dae..0b4e2af7954 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -708,8 +708,6 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
u64 devid;
u64 transid;
- mutex_lock(&uuid_mutex);
-
flags |= FMODE_EXCL;
bdev = blkdev_get_by_path(path, flags, holder);
@@ -718,6 +716,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
goto error;
}
+ mutex_lock(&uuid_mutex);
ret = set_blocksize(bdev, 4096);
if (ret)
goto error_close;
@@ -739,9 +738,9 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
brelse(bh);
error_close:
+ mutex_unlock(&uuid_mutex);
blkdev_put(bdev, flags);
error:
- mutex_unlock(&uuid_mutex);
return ret;
}