diff mbox series

[v2,11/49] libmultipath: use DM_DEVICE_INFO in dm_mapname()

Message ID 20240712171458.77611-12-mwilck@suse.com (mailing list archive)
State Not Applicable, archived
Delegated to: christophe varoqui
Headers show
Series multipath-tools: devmapper API refactored | expand

Commit Message

Martin Wilck July 12, 2024, 5:14 p.m. UTC 
DM_DEVICE_INFO aka the kernel's DM_DEV_STATUS ioctl, is sufficient to
fetch the map name, and more lightweight than DM_DEVICE_STATUS, which maps to
the kernel's DM_TABLE_STATUS ioctl.

Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 libmultipath/devmapper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 3ee8555..baa1ead 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -1412,7 +1412,7 @@  dm_mapname(int major, int minor)
 	struct dm_task *dmt;
 	int r;
 
-	if (!(dmt = libmp_dm_task_create(DM_DEVICE_STATUS)))
+	if (!(dmt = libmp_dm_task_create(DM_DEVICE_INFO)))
 		return NULL;
 
 	if (!dm_task_set_major(dmt, major) ||
@@ -1422,7 +1422,7 @@  dm_mapname(int major, int minor)
 	dm_task_no_open_count(dmt);
 	r = libmp_dm_task_run(dmt);
 	if (!r) {
-		dm_log_error(2, DM_DEVICE_STATUS, dmt);
+		dm_log_error(2, DM_DEVICE_INFO, dmt);
 		goto bad;
 	}