From c048ddaf332504765696a456ab572d6f041051a2 Mon Sep 17 00:00:00 2001 From: Igor K Date: Fri, 22 Mar 2019 23:25:07 +0300 Subject: [PATCH] Fix vd_path and error in spa_vdev_remove() Make a local copy of the vd_path and preserve the removal error for use in spa_history_log_internal(). This is required because after spa_vdev_exit() there is nothing preventing the vdev state from changing. Reviewed-by: Brian Behlendorf Reviewed-by: Tom Caputi Signed-off-by: Igor Kozhukhov Closes #8522 --- module/zfs/vdev_removal.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/module/zfs/vdev_removal.c b/module/zfs/vdev_removal.c index ff39a0a26d..98bf2194a4 100644 --- a/module/zfs/vdev_removal.c +++ b/module/zfs/vdev_removal.c @@ -2101,10 +2101,10 @@ spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) nvlist_t **spares, **l2cache, *nv; uint64_t txg = 0; uint_t nspares, nl2cache; - int error = 0; + int error = 0, error_log; boolean_t locked = MUTEX_HELD(&spa_namespace_lock); sysevent_t *ev = NULL; - char *vd_type = NULL, *vd_path = NULL; + char *vd_type = NULL, *vd_path = NULL, *vd_path_log = NULL; ASSERT(spa_writeable(spa)); @@ -2164,7 +2164,7 @@ spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) spa->spa_l2cache.sav_sync = B_TRUE; } else if (vd != NULL && vd->vdev_islog) { ASSERT(!locked); - vd_type = "log"; + vd_type = VDEV_TYPE_LOG; vd_path = (vd->vdev_path != NULL) ? vd->vdev_path : "-"; error = spa_vdev_remove_log(vd, &txg); } else if (vd != NULL) { @@ -2177,6 +2177,11 @@ spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) error = SET_ERROR(ENOENT); } + if (vd_path != NULL) + vd_path_log = spa_strdup(vd_path); + + error_log = error; + if (!locked) error = spa_vdev_exit(spa, NULL, txg, error); @@ -2187,10 +2192,12 @@ spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) * Doing that would prevent the txg sync from actually happening, * causing a deadlock. */ - if (error == 0 && vd_type != NULL && vd_path != NULL) { + if (error_log == 0 && vd_type != NULL && vd_path_log != NULL) { spa_history_log_internal(spa, "vdev remove", NULL, - "%s vdev (%s) %s", spa_name(spa), vd_type, vd_path); + "%s vdev (%s) %s", spa_name(spa), vd_type, vd_path_log); } + if (vd_path_log != NULL) + spa_strfree(vd_path_log); if (ev != NULL) spa_event_post(ev);