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Btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns

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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: d1433debe7
cc: stable@vger.kernel.org # 3.15+
This commit is contained in:
Chris Mason 2016-09-06 05:37:40 -07:00
parent cb887083d0
commit cbd60aa7cd
1 changed files with 1 additions and 0 deletions
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1
fs/btrfs/tree-log.c
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@ -2867,6 +2867,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
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;