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Illumos 4631 - zvol_get_stats triggering too many reads

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4631 zvol_get_stats triggering too many reads

Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Sebastien Roy <sebastien.roy@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/4631
  https://github.com/illumos/illumos-gate/commit/bbfa8ea

Ported-by: Boris Protopopov <bprotopopov@hotmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2612
Closes #2480
This commit is contained in:
Matthew Ahrens
2014-07-15 03:43:18 -04:00
committed by Brian Behlendorf
parent 2fe5011008
commit bd089c5477
3 changed files with 65 additions and 80 deletions
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include/sys/arc.h
+1 -2
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@@ -136,7 +136,6 @@ void arc_buf_info(arc_buf_t *buf, arc_buf_info_t *abi, int state_index);
int arc_buf_size(arc_buf_t *buf);
void arc_release(arc_buf_t *buf, void *tag);
int arc_released(arc_buf_t *buf);
int arc_has_callback(arc_buf_t *buf);
void arc_buf_sigsegv(int sig, siginfo_t *si, void *unused);
void arc_buf_freeze(arc_buf_t *buf);
void arc_buf_thaw(arc_buf_t *buf);
@@ -159,7 +158,7 @@ void arc_remove_prune_callback(arc_prune_t *p);
void arc_freed(spa_t *spa, const blkptr_t *bp);
void arc_set_callback(arc_buf_t *buf, arc_evict_func_t *func, void *private);
int arc_buf_evict(arc_buf_t *buf);
boolean_t arc_clear_callback(arc_buf_t *buf);
void arc_flush(spa_t *spa);
void arc_tempreserve_clear(uint64_t reserve);