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Illumos #3464

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3464 zfs synctask code needs restructuring
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

References:
  https://www.illumos.org/issues/3464
  illumos/illumos-gate@3b2aab1880

Ported-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1495
This commit is contained in:
Matthew Ahrens
2013-09-04 07:00:57 -05:00
committed by Brian Behlendorf
parent 6f1ffb0665
commit 13fe019870
86 changed files with 6425 additions and 6043 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/sys/rrwlock.h
+6 -1
View File
@@ -60,6 +60,7 @@ typedef struct rrwlock {
refcount_t rr_anon_rcount;
refcount_t rr_linked_rcount;
boolean_t rr_writer_wanted;
boolean_t rr_track_all;
} rrwlock_t;
/*
@@ -67,15 +68,19 @@ typedef struct rrwlock {
* 'tag' must be the same in a rrw_enter() as in its
* corresponding rrw_exit().
*/
void rrw_init(rrwlock_t *rrl);
void rrw_init(rrwlock_t *rrl, boolean_t track_all);
void rrw_destroy(rrwlock_t *rrl);
void rrw_enter(rrwlock_t *rrl, krw_t rw, void *tag);
void rrw_enter_read(rrwlock_t *rrl, void *tag);
void rrw_enter_write(rrwlock_t *rrl);
void rrw_exit(rrwlock_t *rrl, void *tag);
boolean_t rrw_held(rrwlock_t *rrl, krw_t rw);
void rrw_tsd_destroy(void *arg);
#define RRW_READ_HELD(x) rrw_held(x, RW_READER)
#define RRW_WRITE_HELD(x) rrw_held(x, RW_WRITER)
#define RRW_LOCK_HELD(x) \
(rrw_held(x, RW_WRITER) || rrw_held(x, RW_READER))
#ifdef __cplusplus
}