[v2,3/4] libmultipath: only listen for uevents with DEVTYPE=disk

Commit Message

Martin Wilck July 18, 2017, 7:29 a.m. UTC

We are only interested in disks anyway. This saves us checking
for devtype in the uevent processing queue, and is more powerful
than the previous test in the dropped function
uevent_can_discard_by_devpath().

Signed-off-by: Martin Wilck <[e-mail]>
Reviewed-by: Hannes Reinecke <[e-mail]>
Acked-by: Benjamin Marzinski <[e-mail]>
Reviewed-by: "Schremmer, Steven" <[e-mail]>
Reviewed-by: Guan Junxiong <[e-mail]>
---
 libmultipath/uevent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/libmultipath/uevent.c b/libmultipath/uevent.c
index b688ca03..eb44da56 100644
--- a/libmultipath/uevent.c
+++ b/libmultipath/uevent.c
@@ -770,7 +770,7 @@  int uevent_listen(struct udev *udev)
 		goto out;
 	}
 	err = udev_monitor_filter_add_match_subsystem_devtype(monitor, "block",
-							      NULL);
+							      "disk");
 	if (err)
 		condlog(2, "failed to create filter : %s", strerror(-err));
 	err = udev_monitor_enable_receiving(monitor);