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authorChris Mason <chris.mason@oracle.com>2008-05-08 15:05:58 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:02 -0400
commitc1c4d91c38e6e5b29543b02d4a4fb7f007e44f70 (patch)
tree09f42fd06864114dc5ab6676c4ed6aee9e9e024e /fs/btrfs/volumes.c
parenta68d5933a0e409592860229b35230c8e87155472 (diff)
Btrfs: Only open block devices once during mount -o subvol=
btrfs_open_devices needed a check to see if the device was already open. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 55da5f0c56e..aa001b08ced 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -196,6 +196,9 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
mutex_lock(&uuid_mutex);
list_for_each(cur, head) {
device = list_entry(cur, struct btrfs_device, dev_list);
+ if (device->bdev)
+ continue;
+
bdev = open_bdev_excl(device->name, flags, holder);
if (IS_ERR(bdev)) {