| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 068/118] Btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns | Date | Thu, 22 Sep 2016 19:29:28 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Chris Mason <clm@fb.com>
commit cbd60aa7cd17d81a434234268c55192862147439 upstream.
We use a btrfs_log_ctx structure to pass information into the tree log commit, and get error values out. It gets added to a per log-transaction list which we walk when things go bad.
Commit d1433debe added an optimization to skip waiting for the log commit, but didn't take root_log_ctx out of the list. This patch makes sure we remove things before exiting.
Signed-off-by: Chris Mason <clm@fb.com> Fixes: d1433debe7f4346cf9fc0dafc71c3137d2a97bc4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/btrfs/tree-log.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2850,6 +2850,7 @@ int btrfs_sync_log(struct btrfs_trans_ha if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) { blk_finish_plug(&plug); + list_del_init(&root_log_ctx.list); mutex_unlock(&log_root_tree->log_mutex); ret = root_log_ctx.log_ret; goto out;
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