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Illumos #3582, #3584

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3582 zfs_delay() should support a variable resolution
3584 DTrace sdt probes for ZFS txg states

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Dan McDonald <danmcd@nexenta.com>
Reviewed by: Richard Elling <richard.elling@dey-sys.com>
Approved by: Garrett D'Amore <garrett@damore.org>

References:
    https://www.illumos.org/issues/3582
    illumos/illumos-gate@0689f76

Ported by: Ned Bass <bass6@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1775
This commit is contained in:
Adam Leventhal
2013-08-28 16:05:48 -07:00
committed by Brian Behlendorf
parent c1fabe7961
commit 63fd3c6cfd
10 changed files with 87 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/sys/txg_impl.h
+3 -3
View File
@@ -70,7 +70,7 @@ struct tx_cpu {
kmutex_t tc_open_lock; /* protects tx_open_txg */
kmutex_t tc_lock; /* protects the rest of this struct */
kcondvar_t tc_cv[TXG_SIZE];
uint64_t tc_count[TXG_SIZE];
uint64_t tc_count[TXG_SIZE]; /* tx hold count on each txg */
list_t tc_callbacks[TXG_SIZE]; /* commit cb list */
char tc_pad[8]; /* pad to fill 3 cache lines */
};
@@ -87,8 +87,8 @@ struct tx_cpu {
* every cpu (see txg_quiesce()).
*/
typedef struct tx_state {
tx_cpu_t *tx_cpu; /* protects right to enter txg */
kmutex_t tx_sync_lock; /* protects tx_state_t */
tx_cpu_t *tx_cpu; /* protects access to tx_open_txg */
kmutex_t tx_sync_lock; /* protects the rest of this struct */
uint64_t tx_open_txg; /* currently open txg id */
uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */
uint64_t tx_syncing_txg; /* currently syncing txg id */