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Illumos 5045 - use atomic_{inc,dec}_* instead of atomic_add_* 

5045 use atomic_{inc,dec}_* instead of atomic_add_*
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>

References:
  https://www.illumos.org/issues/5045
  https://github.com/illumos/illumos-gate/commit/1a5e258

Porting notes:
- All changes to non-ZFS files dropped.
- Changes to zfs_vfsops.c dropped because they were Illumos specific.

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4220
This commit is contained in:
Josef 'Jeff' Sipek 2016-01-13 16:37:41 -08:00 committed by Brian Behlendorf
parent e3e670d006
commit bc89ac8479
7 changed files with 70 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/sys/refcount.h
View File

@ -86,8 +86,8 @@ typedef struct refcount {
#define refcount_destroy_many(rc, number) ((rc)->rc_count = 0)
#define refcount_is_zero(rc) ((rc)->rc_count == 0)
#define refcount_count(rc) ((rc)->rc_count)
#define refcount_add(rc, holder) atomic_add_64_nv(&(rc)->rc_count, 1)
#define refcount_remove(rc, holder) atomic_add_64_nv(&(rc)->rc_count, -1)
#define refcount_add(rc, holder) atomic_inc_64_nv(&(rc)->rc_count)
#define refcount_remove(rc, holder) atomic_dec_64_nv(&(rc)->rc_count)
#define refcount_add_many(rc, number, holder) \
atomic_add_64_nv(&(rc)->rc_count, number)
#define refcount_remove_many(rc, number, holder) \

4
module/zfs/dbuf.c
View File

@ -230,7 +230,7 @@ dbuf_hash_insert(dmu_buf_impl_t *db)
db->db_hash_next = h->hash_table[idx];
h->hash_table[idx] = db;
mutex_exit(DBUF_HASH_MUTEX(h, idx));
atomic_add_64(&dbuf_hash_count, 1);
atomic_inc_64(&dbuf_hash_count);
return (NULL);
}
@ -266,7 +266,7 @@ dbuf_hash_remove(dmu_buf_impl_t *db)
*dbp = db->db_hash_next;
db->db_hash_next = NULL;
mutex_exit(DBUF_HASH_MUTEX(h, idx));
atomic_add_64(&dbuf_hash_count, -1);
atomic_dec_64(&dbuf_hash_count);
}
static arc_evict_func_t dbuf_do_evict;

121
module/zfs/fm.c
View File

@ -523,25 +523,25 @@ zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb)
error = nvlist_add_int64_array(nvl, FM_EREPORT_TIME, tv_array, 2);
if (error) {
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
goto out;
}
eid = atomic_inc_64_nv(&zevent_eid);
error = nvlist_add_uint64(nvl, FM_EREPORT_EID, eid);
if (error) {
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
goto out;
}
error = nvlist_size(nvl, &nvl_size, NV_ENCODE_NATIVE);
if (error) {
atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64);
goto out;
}
if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) {
atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64);
error = EOVERFLOW;
goto out;
}
@ -551,7 +551,7 @@ zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb)
ev = zfs_zevent_alloc();
if (ev == NULL) {
atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64);
error = ENOMEM;
goto out;
}
@ -1025,8 +1025,7 @@ fm_payload_set(nvlist_t *payload, ...)
va_end(ap);
if (ret)
atomic_add_64(
&erpt_kstat_data.payload_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.payload_set_failed.value.ui64);
}
/*
@ -1059,24 +1058,24 @@ fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class,
int ret;
if (version != FM_EREPORT_VERS0) {
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
return;
}
(void) snprintf(ereport_class, FM_MAX_CLASS, "%s.%s",
FM_EREPORT_CLASS, erpt_class);
if (nvlist_add_string(ereport, FM_CLASS, ereport_class) != 0) {
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
return;
}
if (nvlist_add_uint64(ereport, FM_EREPORT_ENA, ena)) {
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
}
if (nvlist_add_nvlist(ereport, FM_EREPORT_DETECTOR,
(nvlist_t *)detector) != 0) {
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
}
va_start(ap, detector);
@ -1085,7 +1084,7 @@ fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class,
va_end(ap);
if (ret)
atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64);
}
/*
@ -1108,19 +1107,19 @@ static int
fm_fmri_hc_set_common(nvlist_t *fmri, int version, const nvlist_t *auth)
{
if (version != FM_HC_SCHEME_VERSION) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return (0);
}
if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0 ||
nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_HC) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return (0);
}
if (auth != NULL && nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY,
(nvlist_t *)auth) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return (0);
}
@ -1152,22 +1151,22 @@ fm_fmri_hc_set(nvlist_t *fmri, int version, const nvlist_t *auth,
pairs[i] = fm_nvlist_create(nva);
if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 ||
nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
}
}
va_end(ap);
if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs, npairs) != 0)
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
for (i = 0; i < npairs; i++)
fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN);
if (snvl != NULL) {
if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
}
}
}
@ -1192,20 +1191,20 @@ fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth,
*/
if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n)
!= 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
for (i = 0; i < n; i++) {
if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME,
&hcname) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
@ -1217,8 +1216,8 @@ fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth,
fm_nvlist_destroy(pairs[j],
FM_NVA_RETAIN);
}
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
}
@ -1242,8 +1241,8 @@ fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth,
fm_nvlist_destroy(pairs[j],
FM_NVA_RETAIN);
}
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
}
@ -1254,7 +1253,7 @@ fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth,
*/
if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs,
npairs + n) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
@ -1264,8 +1263,8 @@ fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth,
if (snvl != NULL) {
if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
}
@ -1291,7 +1290,7 @@ fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth,
int err = 0;
if (version != DEV_SCHEME_VERSION0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
@ -1312,7 +1311,7 @@ fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth,
err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0);
if (err)
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
}
@ -1337,35 +1336,35 @@ fm_fmri_cpu_set(nvlist_t *fmri_cpu, int version, const nvlist_t *auth,
uint64_t *failedp = &erpt_kstat_data.fmri_set_failed.value.ui64;
if (version < CPU_SCHEME_VERSION1) {
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
return;
}
if (nvlist_add_uint8(fmri_cpu, FM_VERSION, version) != 0) {
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
return;
}
if (nvlist_add_string(fmri_cpu, FM_FMRI_SCHEME,
FM_FMRI_SCHEME_CPU) != 0) {
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
return;
}
if (auth != NULL && nvlist_add_nvlist(fmri_cpu, FM_FMRI_AUTHORITY,
(nvlist_t *)auth) != 0)
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
if (nvlist_add_uint32(fmri_cpu, FM_FMRI_CPU_ID, cpu_id) != 0)
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
if (cpu_maskp != NULL && nvlist_add_uint8(fmri_cpu, FM_FMRI_CPU_MASK,
*cpu_maskp) != 0)
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
if (serial_idp == NULL || nvlist_add_string(fmri_cpu,
FM_FMRI_CPU_SERIAL_ID, (char *)serial_idp) != 0)
atomic_add_64(failedp, 1);
atomic_inc_64(failedp);
}
/*
@ -1386,49 +1385,47 @@ fm_fmri_mem_set(nvlist_t *fmri, int version, const nvlist_t *auth,
const char *unum, const char *serial, uint64_t offset)
{
if (version != MEM_SCHEME_VERSION0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (!serial && (offset != (uint64_t)-1)) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_MEM) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (auth != NULL) {
if (nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY,
(nvlist_t *)auth) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
}
}
if (nvlist_add_string(fmri, FM_FMRI_MEM_UNUM, unum) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
}
if (serial != NULL) {
if (nvlist_add_string_array(fmri, FM_FMRI_MEM_SERIAL_ID,
(char **)&serial, 1) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
}
if (offset != (uint64_t)-1) {
if (nvlist_add_uint64(fmri, FM_FMRI_MEM_OFFSET,
offset) != 0) {
atomic_add_64(&erpt_kstat_data.
fmri_set_failed.value.ui64, 1);
}
if (offset != (uint64_t)-1 && nvlist_add_uint64(fmri,
FM_FMRI_MEM_OFFSET, offset) != 0) {
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
}
}
}
@ -1438,28 +1435,28 @@ fm_fmri_zfs_set(nvlist_t *fmri, int version, uint64_t pool_guid,
uint64_t vdev_guid)
{
if (version != ZFS_SCHEME_VERSION0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_ZFS) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
return;
}
if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_POOL, pool_guid) != 0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64);
}
if (vdev_guid != 0) {
if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_VDEV, vdev_guid) != 0) {
atomic_add_64(
&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
atomic_inc_64(
&erpt_kstat_data.fmri_set_failed.value.ui64);
}
}
}

4
module/zfs/spa.c
View File

@ -1898,9 +1898,9 @@ spa_load_verify_done(zio_t *zio)
if (error) {
if ((BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)) &&
type != DMU_OT_INTENT_LOG)
atomic_add_64(&sle->sle_meta_count, 1);
atomic_inc_64(&sle->sle_meta_count);
else
atomic_add_64(&sle->sle_data_count, 1);
atomic_inc_64(&sle->sle_data_count);
}
zio_data_buf_free(zio->io_data, zio->io_size);

2
module/zfs/vdev_cache.c
View File

@ -102,7 +102,7 @@ static vdc_stats_t vdc_stats = {
{ "misses", KSTAT_DATA_UINT64 }
};
#define VDCSTAT_BUMP(stat) atomic_add_64(&vdc_stats.stat.value.ui64, 1);
#define VDCSTAT_BUMP(stat) atomic_inc_64(&vdc_stats.stat.value.ui64);
static int
vdev_cache_offset_compare(const void *a1, const void *a2)

4
module/zfs/vdev_label.c
View File

@ -984,7 +984,7 @@ vdev_uberblock_sync_done(zio_t *zio)
uint64_t *good_writes = zio->io_private;
if (zio->io_error == 0 && zio->io_vd->vdev_top->vdev_ms_array != 0)
atomic_add_64(good_writes, 1);
atomic_inc_64(good_writes);
}
/*
@ -1060,7 +1060,7 @@ vdev_label_sync_done(zio_t *zio)
uint64_t *good_writes = zio->io_private;
if (zio->io_error == 0)
atomic_add_64(good_writes, 1);
atomic_inc_64(good_writes);
}
/*

4
module/zfs/zio_inject.c
View File

@ -427,7 +427,7 @@ zio_inject_fault(char *name, int flags, int *id, zinject_record_t *record)
handler->zi_spa = spa;
handler->zi_record = *record;
list_insert_tail(&inject_handlers, handler);
atomic_add_32(&zio_injection_enabled, 1);
atomic_inc_32(&zio_injection_enabled);
rw_exit(&inject_lock);
}
@ -508,7 +508,7 @@ zio_clear_fault(int id)
spa_inject_delref(handler->zi_spa);
kmem_free(handler, sizeof (inject_handler_t));
atomic_add_32(&zio_injection_enabled, -1);
atomic_dec_32(&zio_injection_enabled);
return (0);
}