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dmu_tx kstat cleanup 

A few counters in the dmu_tx kstats are obsolete or no longer
bumped properly.

- The sync task restructuring commit
  13fe019870 removed the code
  that bumpted dmu_tx_quota. The counter is now bumped in two
  cases, instead of just the one case as before (after the result
  of dsl_dataset_check_quota call). The second case is where
  we check the requested reservation against the actual pool size,
  as this is an implicit quota of sorts.

- The write throttle restructuring commit
  e8b96c6007 makes dmu_tx_how and
  dmu_tx_inflight obsolete, so they are removed.

Signed-off-by: Kohsuke Kawaguchi <kk@kohsuke.org>
Signed-off-by: Ned Bass <bass6@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1914
This commit is contained in:
Ned Bass 2014-02-27 16:11:11 -08:00 committed by Brian Behlendorf
parent cecb7487fc
commit 3d920a1567
3 changed files with 2 additions and 4 deletions
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2
include/sys/dmu_tx.h
View File

@ -130,10 +130,8 @@ typedef struct dmu_tx_stats {
kstat_named_t dmu_tx_error;
kstat_named_t dmu_tx_suspended;
kstat_named_t dmu_tx_group;
kstat_named_t dmu_tx_how;
kstat_named_t dmu_tx_memory_reserve;
kstat_named_t dmu_tx_memory_reclaim;
kstat_named_t dmu_tx_memory_inflight;
kstat_named_t dmu_tx_dirty_throttle;
kstat_named_t dmu_tx_dirty_delay;
kstat_named_t dmu_tx_dirty_over_max;

2
module/zfs/dmu_tx.c
View File

@ -48,10 +48,8 @@ dmu_tx_stats_t dmu_tx_stats = {
{ "dmu_tx_error", KSTAT_DATA_UINT64 },
{ "dmu_tx_suspended", KSTAT_DATA_UINT64 },
{ "dmu_tx_group", KSTAT_DATA_UINT64 },
{ "dmu_tx_how", KSTAT_DATA_UINT64 },
{ "dmu_tx_memory_reserve", KSTAT_DATA_UINT64 },
{ "dmu_tx_memory_reclaim", KSTAT_DATA_UINT64 },
{ "dmu_tx_memory_inflight", KSTAT_DATA_UINT64 },
{ "dmu_tx_dirty_throttle", KSTAT_DATA_UINT64 },
{ "dmu_tx_dirty_delay", KSTAT_DATA_UINT64 },
{ "dmu_tx_dirty_over_max", KSTAT_DATA_UINT64 },

2
module/zfs/dsl_dir.c
View File

@ -635,6 +635,7 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree,
asize, est_inflight, &used_on_disk, &ref_rsrv);
if (error) {
mutex_exit(&dd->dd_lock);
DMU_TX_STAT_BUMP(dmu_tx_quota);
return (error);
}
}
@ -683,6 +684,7 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree,
used_on_disk>>10, est_inflight>>10,
quota>>10, asize>>10, retval);
mutex_exit(&dd->dd_lock);
DMU_TX_STAT_BUMP(dmu_tx_quota);
return (SET_ERROR(retval));
}