Add device number to kdmflush workqueue name to help debugging CPU usage.
Resulting `ps axfu` snippet:
root 3791 0.0 0.0 0 0 ? I< paź19 0:00 \_ [kdmflush/253:7]
root 3792 0.0 0.0 0 0 ? I< paź19 0:00 \_ [kcryptd_io/253:7]
root 3793 0.0 0.0 0 0 ? I< paź19 0:00 \_ [kcryptd/253:7]
root 3794 0.0 0.0 0 0 ? S paź19 0:00 \_ [dmcrypt_write/253:7]
root 3814 0.0 0.0 0 0 ? I< paź19 0:00 \_ [kdmflush/253:8]
root 3815 0.0 0.0 0 0 ? I< paź19 0:00 \_ [kdmflush/253:9]
root 3816 0.0 0.0 0 0 ? I< paź19 0:00 \_ [kdmflush/253:10]
Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>
Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>
---
drivers/md/dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 76d9da49fda7..30830f737a9c 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1800,7 +1800,7 @@ static struct mapped_device *alloc_dev(int minor)
format_dev_t(md->name, MKDEV(_major, minor));
- md->wq = alloc_workqueue("kdmflush", WQ_MEM_RECLAIM, 0);
+ md->wq = alloc_workqueue("kdmflush/%s", WQ_MEM_RECLAIM, 0, md->name);
if (!md->wq)
goto bad;
--
2.30.2
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