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Illumos #3561, #3116

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3561 arc_meta_limit should be exposed via kstats
3116 zpool reguid may log negative guids to internal SPA history
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Approved by: Garrett D'Amore <garrett@damore.org>

References:
  https://www.illumos.org/issues/3561
  https://www.illumos.org/issues/3116
  illumos/illumos-gate@20128a0826

Ported-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

Porting Notes:

1. The spa change was accidentally included in the libzfs_core merge.

2. "Add missing arcstats" (1834f2d8b7)
   already implemented these kstats a few years ago.
This commit is contained in:
George Wilson 2013-02-17 12:00:54 -08:00 committed by Brian Behlendorf
parent 330847ff36
commit 23c0a1333c
1 changed files with 5 additions and 5 deletions
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10
module/zfs/arc.c
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@ -479,9 +479,9 @@ static arc_state_t *arc_l2c_only;
#define arc_no_grow ARCSTAT(arcstat_no_grow)
#define arc_tempreserve ARCSTAT(arcstat_tempreserve)
#define arc_loaned_bytes ARCSTAT(arcstat_loaned_bytes)
#define arc_meta_used ARCSTAT(arcstat_meta_used)
#define arc_meta_limit ARCSTAT(arcstat_meta_limit)
#define arc_meta_max ARCSTAT(arcstat_meta_max)
#define arc_meta_limit ARCSTAT(arcstat_meta_limit) /* max size for metadata */
#define arc_meta_used ARCSTAT(arcstat_meta_used) /* size of metadata */
#define arc_meta_max ARCSTAT(arcstat_meta_max) /* max size of metadata */
#define L2ARC_IS_VALID_COMPRESS(_c_) \
((_c_) == ZIO_COMPRESS_LZ4 || (_c_) == ZIO_COMPRESS_EMPTY)
@ -1305,7 +1305,7 @@ arc_space_consume(uint64_t space, arc_space_type_t type)
break;
}
atomic_add_64(&arc_meta_used, space);
ARCSTAT_INCR(arcstat_meta_used, space);
atomic_add_64(&arc_size, space);
}
@ -1334,7 +1334,7 @@ arc_space_return(uint64_t space, arc_space_type_t type)
ASSERT(arc_meta_used >= space);
if (arc_meta_max < arc_meta_used)
arc_meta_max = arc_meta_used;
atomic_add_64(&arc_meta_used, -space);
ARCSTAT_INCR(arcstat_meta_used, -space);
ASSERT(arc_size >= space);
atomic_add_64(&arc_size, -space);
}