The ret from flush_space is ignored so no point in assigning it to a variable.
The ticket variable was used in the initial version of the ticketed ENOSPC
work, however Wang Xiaoguang detected a problem with this and fixed it in
ce129655c9d9 ("btrfs: introduce tickets_id to determine whether asynchronous
metadata reclaim work makes progress").
Signed-off-by: Nikolay Borisov <nbori...@suse.com>
---
fs/btrfs/extent-tree.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index d57f1f161fa2..31924c834049 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5057,10 +5057,7 @@ static void btrfs_async_reclaim_metadata_space(struct
work_struct *work)
flush_state = FLUSH_DELAYED_ITEMS_NR;
do {
- struct reserve_ticket *ticket;
- int ret;
-
- ret = flush_space(fs_info, space_info, to_reclaim, to_reclaim,
+ flush_space(fs_info, space_info, to_reclaim, to_reclaim,
flush_state);
spin_lock(&space_info->lock);
if (list_empty(&space_info->tickets)) {
@@ -5071,8 +5068,6 @@ static void btrfs_async_reclaim_metadata_space(struct
work_struct *work)
to_reclaim = btrfs_calc_reclaim_metadata_size(fs_info,
space_info,
false);
- ticket = list_first_entry(&space_info->tickets,
- struct reserve_ticket, list);
if (last_tickets_id == space_info->tickets_id) {
flush_state++;
} else {
--
2.7.4
--
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