If map creation succeeds, previously not multipathed devices are now multipathed. udev may not have noticed this yet, thus trigger path uevents to make it aware of the situation. Likewise, if creating a map fails, the paths in question were likely considered multipath members by udev, too. They will now be marked as failed, so trigger an event in this situation as well. Fixes: https://github.com/opensvc/multipath-tools/issues/103 Suggested-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx> Signed-off-by: Martin Wilck <mwilck@xxxxxxxx> --- libmultipath/configure.c | 11 ++++------- libmultipath/devmapper.c | 9 +++------ libmultipath/structs.h | 1 - 3 files changed, 7 insertions(+), 14 deletions(-) diff --git a/libmultipath/configure.c b/libmultipath/configure.c index bd71e68..2b1dfd2 100644 --- a/libmultipath/configure.c +++ b/libmultipath/configure.c @@ -614,8 +614,6 @@ trigger_paths_udev_change(struct multipath *mpp, bool is_mpath) vector_foreach_slot(pgp->paths, pp, j) trigger_path_udev_change(pp, is_mpath); } - - mpp->needs_paths_uevent = 0; } static int sysfs_set_max_sectors_kb(struct multipath *mpp) @@ -1002,10 +1000,10 @@ int domap(struct multipath *mpp, char *params, int is_daemon) * succeeded */ mpp->force_udev_reload = 0; - if (mpp->action == ACT_CREATE && - (remember_wwid(mpp->wwid) == 1 || - mpp->needs_paths_uevent)) + if (mpp->action == ACT_CREATE) { + remember_wwid(mpp->wwid); trigger_paths_udev_change(mpp, true); + } if (!is_daemon) { /* multipath client mode */ dm_switchgroup(mpp->alias, mpp->bestpg); @@ -1030,8 +1028,7 @@ int domap(struct multipath *mpp, char *params, int is_daemon) } dm_setgeometry(mpp); return DOMAP_OK; - } else if (r == DOMAP_FAIL && mpp->action == ACT_CREATE && - mpp->needs_paths_uevent) + } else if (r == DOMAP_FAIL && mpp->action == ACT_CREATE) trigger_paths_udev_change(mpp, false); return DOMAP_FAIL; diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c index d4dd954..55052cf 100644 --- a/libmultipath/devmapper.c +++ b/libmultipath/devmapper.c @@ -537,7 +537,7 @@ static uint16_t build_udev_flags(const struct multipath *mpp, int reload) MPATH_UDEV_RELOAD_FLAG : 0); } -int dm_addmap_create (struct multipath *mpp, char * params) +int dm_addmap_create (struct multipath *mpp, char *params) { int ro; uint16_t udev_flags = build_udev_flags(mpp, 0); @@ -547,9 +547,7 @@ int dm_addmap_create (struct multipath *mpp, char * params) if (dm_addmap(DM_DEVICE_CREATE, TGT_MPATH, mpp, params, ro, udev_flags)) { - if (unmark_failed_wwid(mpp->wwid) == - WWID_FAILED_CHANGED) - mpp->needs_paths_uevent = 1; + unmark_failed_wwid(mpp->wwid); return 1; } /* @@ -570,8 +568,7 @@ int dm_addmap_create (struct multipath *mpp, char * params) break; } } - if (mark_failed_wwid(mpp->wwid) == WWID_FAILED_CHANGED) - mpp->needs_paths_uevent = 1; + mark_failed_wwid(mpp->wwid); return 0; } diff --git a/libmultipath/structs.h b/libmultipath/structs.h index 2159cb3..6a30c59 100644 --- a/libmultipath/structs.h +++ b/libmultipath/structs.h @@ -467,7 +467,6 @@ struct multipath { int max_sectors_kb; int force_readonly; int force_udev_reload; - int needs_paths_uevent; int ghost_delay; int ghost_delay_tick; int queue_mode; -- 2.47.0
