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

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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
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include/sys/refcount.h
+2 -2
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) \