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Illumos 5047 - don't use atomic_*_nv if you discard the return value

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5047 don't use atomic_*_nv if you discard the return value
Author: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Jason King <jason.brian.king@gmail.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>

References:
  https://www.illumos.org/issues/5047
  https://github.com/illumos/illumos-gate/commit/640c167

Porting Notes:

Several hunks from the original patch where not specific to ZFS
and thus were dropped.

Ported-by: Chris Dunlop <chris@onthe.net.au>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Issue #3172
This commit is contained in:
Josef 'Jeff' Sipek
2015-03-12 11:03:31 +11:00
committed by Brian Behlendorf
parent 7f3e466283
commit 73ad4a9f3c
2 changed files with 5 additions and 5 deletions
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module/zfs/dmu.c
+1 -1
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@@ -283,7 +283,7 @@ dmu_bonus_hold(objset_t *os, uint64_t object, void *tag, dmu_buf_t **dbp)
/* as long as the bonus buf is held, the dnode will be held */
if (refcount_add(&db->db_holds, tag) == 1) {
VERIFY(dnode_add_ref(dn, db));
(void) atomic_inc_32_nv(&dn->dn_dbufs_count);
atomic_inc_32(&dn->dn_dbufs_count);
}
/*