diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2020-01-24 09:32:51 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:31 +0100 |
| commit | ca2037fba6af039c18ae3219ff2fbacf2ca7c133 (patch) | |
| tree | 8d983870d2c2e80f63ec23d9274bf4ee39d76200 /fs | |
| parent | 5119cfc36f6da62ee7c8f38208afece006a27fcb (diff) | |
btrfs: hold a ref on the root in btrfs_recover_log_trees
We replay the log into arbitrary fs roots, hold a ref on the root while
we're doing this.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/tree-log.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 556aa4a614f5..169270c931a9 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -6163,6 +6163,10 @@ again: tmp_key.offset = (u64)-1; wc.replay_dest = btrfs_get_fs_root(fs_info, &tmp_key, true); + if (!IS_ERR(wc.replay_dest)) { + if (!btrfs_grab_fs_root(wc.replay_dest)) + wc.replay_dest = ERR_PTR(-ENOENT); + } if (IS_ERR(wc.replay_dest)) { ret = PTR_ERR(wc.replay_dest); @@ -6219,6 +6223,7 @@ again: } wc.replay_dest->log_root = NULL; + btrfs_put_fs_root(wc.replay_dest); free_extent_buffer(log->node); free_extent_buffer(log->commit_root); kfree(log); |