diff mbox series

[4/6] dm cache: add cond_resched() to various workqueue loops

Message ID 20230217200737.12481-5-snitzer@kernel.org (mailing list archive)
State Accepted, archived
Delegated to: Mike Snitzer
Headers show
Series dm: some changes just staged for 6.3 | expand

Commit Message

Mike Snitzer Feb. 17, 2023, 8:07 p.m. UTC 
Otherwise on resource constrained systems these workqueues may be too
greedy.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
---
 drivers/md/dm-cache-target.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 23195701dc15..dbbcfa580078 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -1829,6 +1829,7 @@  static void process_deferred_bios(struct work_struct *ws)
 
 		else
 			commit_needed = process_bio(cache, bio) || commit_needed;
+		cond_resched();
 	}
 
 	if (commit_needed)
@@ -1852,6 +1853,7 @@  static void requeue_deferred_bios(struct cache *cache)
 	while ((bio = bio_list_pop(&bios))) {
 		bio->bi_status = BLK_STS_DM_REQUEUE;
 		bio_endio(bio);
+		cond_resched();
 	}
 }
 
@@ -1892,6 +1894,8 @@  static void check_migrations(struct work_struct *ws)
 		r = mg_start(cache, op, NULL);
 		if (r)
 			break;
+
+		cond_resched();
 	}
 }