From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Thu, 18 May 2017 10:11:07 -0500 Subject: [PATCH] libmultipath: add comment about resuming The reason for the second resume in my commit "libmultipath: fix suspended devs from failed reloads" is not obvious from the multipath code, so add a comment. Signed-off-by: Benjamin Marzinski --- libmultipath/devmapper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c index 69b634b..ee83e0f 100644 --- a/libmultipath/devmapper.c +++ b/libmultipath/devmapper.c @@ -399,6 +399,9 @@ int dm_addmap_reload(struct multipath *mpp, char *params, int flush) if (r) return r; + /* If the resume failed, dm will leave the device suspended, and + * drop the new table, so doing a second resume will try using + * the original table */ if (dm_is_suspended(mpp->alias)) dm_simplecmd(DM_DEVICE_RESUME, mpp->alias, !flush, 1, udev_flags, 0); -- 2.7.4