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Check l2cache vdevs pending list inside the vdev_inuse()

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The l2cache device could be added twice because vdev_inuse() does not
check spa_l2cache for added devices. Make l2cache vdevs inuse checking
logic more closer to spare vdevs.

Reviewed-by: George Amanakis <gamanakis@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes #9153 
Closes #12689
This commit is contained in:
Fedor Uporov
2021-11-11 11:54:15 -08:00
committed by GitHub
parent d04b5c9e87
commit 49d42425d6
4 changed files with 45 additions and 12 deletions
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module/zfs/spa.c
+16 -5
View File
@@ -9451,12 +9451,11 @@ spa_upgrade(spa_t *spa, uint64_t version)
txg_wait_synced(spa_get_dsl(spa), 0);
}
boolean_t
spa_has_spare(spa_t *spa, uint64_t guid)
static boolean_t
spa_has_aux_vdev(spa_t *spa, uint64_t guid, spa_aux_vdev_t *sav)
{
int i;
uint64_t spareguid;
spa_aux_vdev_t *sav = &spa->spa_spares;
uint64_t vdev_guid;
for (i = 0; i < sav->sav_count; i++)
if (sav->sav_vdevs[i]->vdev_guid == guid)
@@ -9464,13 +9463,25 @@ spa_has_spare(spa_t *spa, uint64_t guid)
for (i = 0; i < sav->sav_npending; i++) {
if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID,
&spareguid) == 0 && spareguid == guid)
&vdev_guid) == 0 && vdev_guid == guid)
return (B_TRUE);
}
return (B_FALSE);
}
boolean_t
spa_has_l2cache(spa_t *spa, uint64_t guid)
{
return (spa_has_aux_vdev(spa, guid, &spa->spa_l2cache));
}
boolean_t
spa_has_spare(spa_t *spa, uint64_t guid)
{
return (spa_has_aux_vdev(spa, guid, &spa->spa_spares));
}
/*
* Check if a pool has an active shared spare device.
* Note: reference count of an active spare is 2, as a spare and as a replace
module/zfs/vdev_label.c
+19 -4
View File
@@ -933,7 +933,7 @@ vdev_inuse(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason,
/*
* Check to see if this is a spare device. We do an explicit check for
* spa_has_spare() here because it may be on our pending list of spares
* to add. We also check if it is an l2cache device.
* to add.
*/
if (spa_spare_exists(device_guid, &spare_pool, NULL) ||
spa_has_spare(spa, device_guid)) {
@@ -942,7 +942,6 @@ vdev_inuse(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason,
switch (reason) {
case VDEV_LABEL_CREATE:
case VDEV_LABEL_L2CACHE:
return (B_TRUE);
case VDEV_LABEL_REPLACE:
@@ -959,8 +958,24 @@ vdev_inuse(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason,
/*
* Check to see if this is an l2cache device.
*/
if (spa_l2cache_exists(device_guid, NULL))
return (B_TRUE);
if (spa_l2cache_exists(device_guid, NULL) ||
spa_has_l2cache(spa, device_guid)) {
if (l2cache_guid)
*l2cache_guid = device_guid;
switch (reason) {
case VDEV_LABEL_CREATE:
return (B_TRUE);
case VDEV_LABEL_REPLACE:
return (!spa_has_l2cache(spa, device_guid));
case VDEV_LABEL_L2CACHE:
return (spa_has_l2cache(spa, device_guid));
default:
break;
}
}
/*
* We can't rely on a pool's state if it's been imported