diff options
| author | Miao Xie | 2013-05-15 09:48:19 +0200 |
|---|---|---|
| committer | Josef Bacik | 2013-06-14 17:29:37 +0200 |
| commit | cb517eabba4f109810dba2e5f37b0dcf22103065 (patch) | |
| tree | 5c553813bf6fdc41df3912a1146828cba64d3b17 /fs/btrfs/volumes.c | |
| parent | Btrfs: make the snap/subv deletion end more early when the fs is R/O (diff) | |
| download | kernel-qcow2-linux-cb517eabba4f109810dba2e5f37b0dcf22103065.tar.gz kernel-qcow2-linux-cb517eabba4f109810dba2e5f37b0dcf22103065.tar.xz kernel-qcow2-linux-cb517eabba4f109810dba2e5f37b0dcf22103065.zip | |
Btrfs: cleanup the similar code of the fs root read
There are several functions whose code is similar, such as
btrfs_find_last_root()
btrfs_read_fs_root_no_radix()
Besides that, some functions are invoked twice, it is unnecessary,
for example, we are sure that all roots which is found in
btrfs_find_orphan_roots()
have their orphan items, so it is unnecessary to check the orphan
item again.
So cleanup it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 24940085cdac..440de708f9eb 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -5367,7 +5367,6 @@ static struct btrfs_device *add_missing_dev(struct btrfs_root *root, return NULL; list_add(&device->dev_list, &fs_devices->devices); - device->dev_root = root->fs_info->dev_root; device->devid = devid; device->work.func = pending_bios_fn; device->fs_devices = fs_devices; @@ -5593,7 +5592,6 @@ static int read_one_dev(struct btrfs_root *root, } fill_device_from_item(leaf, dev_item, device); - device->dev_root = root->fs_info->dev_root; device->in_fs_metadata = 1; if (device->writeable && !device->is_tgtdev_for_dev_replace) { device->fs_devices->total_rw_bytes += device->total_bytes; @@ -5751,6 +5749,17 @@ error: return ret; } +void btrfs_init_devices_late(struct btrfs_fs_info *fs_info) +{ + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; + struct btrfs_device *device; + + mutex_lock(&fs_devices->device_list_mutex); + list_for_each_entry(device, &fs_devices->devices, dev_list) + device->dev_root = fs_info->dev_root; + mutex_unlock(&fs_devices->device_list_mutex); +} + static void __btrfs_reset_dev_stats(struct btrfs_device *dev) { int i; |