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| author | Anand Jain <anand.jain@oracle.com> | 2018-04-12 05:29:36 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-05-28 19:23:16 +0300 |
| commit | b25e59e2b2ee394a2a7e981b99cbd92ef6c8be85 (patch) | |
| tree | 707e1439dc50eb846d807d2e6b088d50fe7130b9 /fs/btrfs/dev-replace.c | |
| parent | 542c5908abfe84f7b4c1717492ecc92ea0ea328d (diff) | |
| download | linux-b25e59e2b2ee394a2a7e981b99cbd92ef6c8be85.tar.xz | |
btrfs: drop uuid_mutex in btrfs_dev_replace_finishing
btrfs_dev_replace_finishing updates devices (soruce and target) which
are within the btrfs_fs_devices::devices or withint the cloned seed
devices (btrfs_fs_devices::seed::devices), so we don't need the global
uuid_mutex.
The device replace context is also locked by its own locks.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
| -rw-r--r-- | fs/btrfs/dev-replace.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 89946285203d..e2ba0419297a 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -609,7 +609,6 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, ret = btrfs_commit_transaction(trans); WARN_ON(ret); - mutex_lock(&uuid_mutex); /* keep away write_all_supers() during the finishing procedure */ mutex_lock(&fs_info->fs_devices->device_list_mutex); mutex_lock(&fs_info->chunk_mutex); @@ -636,7 +635,6 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, btrfs_dev_replace_write_unlock(dev_replace); mutex_unlock(&fs_info->chunk_mutex); mutex_unlock(&fs_info->fs_devices->device_list_mutex); - mutex_unlock(&uuid_mutex); btrfs_rm_dev_replace_blocked(fs_info); if (tgt_device) btrfs_destroy_dev_replace_tgtdev(fs_info, tgt_device); @@ -687,7 +685,6 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, */ mutex_unlock(&fs_info->chunk_mutex); mutex_unlock(&fs_info->fs_devices->device_list_mutex); - mutex_unlock(&uuid_mutex); /* replace the sysfs entry */ btrfs_sysfs_rm_device_link(fs_info->fs_devices, src_device); |