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JSON spares state readout 

Spares can be in multiple pools, even if in use. This means that
status check AVAIL/INUSE is a bit tricky. spa_add_spares does not
need to be called, but we do need to do the equivalent. Which is
now done directly.
This commit is contained in:
Fred Weigel 2023-06-27 14:47:31 +00:00 committed by Geoff Amey
parent f7574ccff3
commit b037880efb
1 changed files with 16 additions and 7 deletions
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21
module/zfs/json_stats.c
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@ -170,7 +170,7 @@ stats_filter(jprint_t *jp, const char *name, data_type_t type, void *value)
*/
if ((jp->stackp == 0) &&
(type == DATA_TYPE_NVLIST) &&
(strcmp(name, "vdev_tree") == 0))
(strcmp(name, ZPOOL_CONFIG_VDEV_TREE) == 0))
return (B_TRUE);
/*
@ -347,6 +347,8 @@ vdev_to_json(vdev_t *v, pool_scan_stat_t *ps, jprint_t *jp, uint_t flags)
uint64_t i, n;
vdev_t **a;
const char *s;
uint64_t pool = 0ULL;
if (v == NULL)
return;
jp_printf(jp, "type: %s", v->vdev_ops->vdev_op_type);
@ -380,9 +382,10 @@ vdev_to_json(vdev_t *v, pool_scan_stat_t *ps, jprint_t *jp, uint_t flags)
v->vdev_enc_sysfs_path);
s = vdev_state_string(v);
if (flags & USE_AVAIL) {
if (v->vdev_stat.vs_aux == VDEV_AUX_SPARED)
if (spa_spare_exists(v->vdev_guid, &pool, NULL) &&
(pool != 0ULL))
s = "INUSE";
else if (v->vdev_state == VDEV_STATE_HEALTHY)
else
s = "AVAIL";
}
jp_printf(jp, "state: %s", s);
@ -514,7 +517,8 @@ pss_func_to_string(uint64_t n)
return (s);
}
static const char *pss_state_to_string(uint64_t n)
static const char *
pss_state_to_string(uint64_t n)
{
const char *s = "?";
switch (n) {
@ -614,8 +618,13 @@ json_data(char *buf, size_t size, void *data)
jp_printf(&jp, "state: %s", spa_state_to_name(spa));
if (scl_config_lock) {
spa_add_spares(spa, nvl);
spa_add_l2cache(spa, nvl);
/*
* We could call spa_add_spares(spa, nvl); and
* spa_add_l2cache(spa, nvl); if we needed (that is,
* if there are side effects) -- as it is, spa_add_spares
* is called JUST for a side effect, but we do what is
* needed when spares are displayed.
*/
spa_add_feature_stats(spa, nvl);
}