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| author | Josef Bacik <josef@toxicpanda.com> | 2020-08-20 11:18:27 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-10-07 12:12:13 +0200 |
| commit | 62cf5391209ac7b258a82316c4d703342863fd37 (patch) | |
| tree | 6bd938e94017d31c9d00f92ca839668103b6e826 /fs/btrfs/volumes.c | |
| parent | 68abf360160ca085bb5109d35692ea0f9581f8d1 (diff) | |
| download | linux-62cf5391209ac7b258a82316c4d703342863fd37.tar.bz2 | |
btrfs: move btrfs_rm_dev_replace_free_srcdev outside of all locks
When closing and freeing the source device we could end up doing our
final blkdev_put() on the bdev, which will grab the bd_mutex. As such
we want to be holding as few locks as possible, so move this call
outside of the dev_replace->lock_finishing_cancel_unmount lock. Since
we're modifying the fs_devices we need to make sure we're holding the
uuid_mutex here, so take that as well.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 9800e966ef6e..503ccc3a091e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2216,7 +2216,6 @@ void btrfs_rm_dev_replace_remove_srcdev(struct btrfs_device *srcdev) void btrfs_rm_dev_replace_free_srcdev(struct btrfs_device *srcdev) { - struct btrfs_fs_info *fs_info = srcdev->fs_info; struct btrfs_fs_devices *fs_devices = srcdev->fs_devices; mutex_lock(&uuid_mutex); |