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Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 790368d4b866..44fd866772e2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -553,6 +553,20 @@ static int btrfs_free_stale_devices(dev_t devt, struct btrfs_device *skip_device
return ret;
}
+static struct btrfs_fs_devices *find_fsid_by_device(
+ struct btrfs_super_block *disk_super)
+{
+ struct btrfs_fs_devices *fsid_fs_devices;
+ const bool has_metadata_uuid = (btrfs_super_incompat_flags(disk_super) &
+ BTRFS_FEATURE_INCOMPAT_METADATA_UUID);
+
+ /* Find the fs_device by the usual method, if found use it. */
+ fsid_fs_devices = find_fsid(disk_super->fsid,
+ has_metadata_uuid ? disk_super->metadata_uuid : NULL);
+
+ return fsid_fs_devices;
+}
+
/*
* This is only used on mount, and we are protected from competing things
* messing with our fs_devices by the uuid_mutex, thus we do not need the
@@ -673,10 +687,7 @@ static noinline struct btrfs_device *device_list_add(const char *path,
return ERR_PTR(error);
}
- if (has_metadata_uuid)
- fs_devices = find_fsid(disk_super->fsid, disk_super->metadata_uuid);
- else
- fs_devices = find_fsid(disk_super->fsid, NULL);
+ fs_devices = find_fsid_by_device(disk_super);
if (!fs_devices) {
fs_devices = alloc_fs_devices(disk_super->fsid);