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btrfs: drop chunk locks at the end of close_ctree

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The pinned chunks might be left over so we clean them but at this point
of close_ctree, there's noone to race with, the locking can be removed.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-06-22 03:59:40 +02:00
parent d3c0bab563
commit 4958aa6821
1 changed files with 0 additions and 2 deletions
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2
fs/btrfs/disk-io.c
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@ -3944,7 +3944,6 @@ void close_ctree(struct btrfs_fs_info *fs_info)
__btrfs_free_block_rsv(root->orphan_block_rsv);
root->orphan_block_rsv = NULL;
mutex_lock(&fs_info->chunk_mutex);
while (!list_empty(&fs_info->pinned_chunks)) {
struct extent_map *em;
@ -3953,7 +3952,6 @@ void close_ctree(struct btrfs_fs_info *fs_info)
list_del_init(&em->list);
free_extent_map(em);
}
mutex_unlock(&fs_info->chunk_mutex);
}
int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,