diff options
| author | Mikulas Patocka | 2021-06-15 14:17:35 -0400 |
|---|---|---|
| committer | Mike Snitzer | 2021-06-15 15:42:03 -0400 |
| commit | 293128b1ef5ae2cfa7403d54e183fe689ed5d303 (patch) | |
| tree | dd349a4d33751ae24bf01896197e05a72ec2ea49 /include/linux | |
| parent | 8c77f1cb84585efba108df5e67ecc5cbbceef0d9 (diff) | |
dm writecache: have ssd writeback wait if the kcopyd workqueue is busy
Make dm-writecache wait if the kcopyd workqueue is busy (as will
happen if waiting for page allocation or inside submit_bio).
This change improves performance of "mkfs.ext2" by approximately 20%
on one testbed.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dm-kcopyd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/dm-kcopyd.h b/include/linux/dm-kcopyd.h index e42de7750c88..c1707ee5b540 100644 --- a/include/linux/dm-kcopyd.h +++ b/include/linux/dm-kcopyd.h @@ -51,6 +51,7 @@ MODULE_PARM_DESC(name, description) struct dm_kcopyd_client; struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *throttle); void dm_kcopyd_client_destroy(struct dm_kcopyd_client *kc); +void dm_kcopyd_client_flush(struct dm_kcopyd_client *kc); /* * Submit a copy job to kcopyd. This is built on top of the |