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Add Module Parameter Regarding Log Size Limit

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* Add Module Parameters Regarding Log Size Limit

zfs_wrlog_data_max
The upper limit of TX_WRITE log data. Once it is reached,
write operation is blocked, until log data is cleared out
after txg sync. It only counts TX_WRITE log with WR_COPIED
or WR_NEED_COPY.

Reviewed-by: Prakash Surya <prakash.surya@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: jxdking <lostking2008@hotmail.com>
Closes #12284
This commit is contained in:
Kevin Jin
2021-07-20 11:40:24 -04:00
committed by GitHub
parent 8172df643b
commit a7bd20e309
8 changed files with 106 additions and 2 deletions
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include/sys/dmu_tx.h
+1
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@@ -124,6 +124,7 @@ typedef struct dmu_tx_stats {
kstat_named_t dmu_tx_dirty_throttle;
kstat_named_t dmu_tx_dirty_delay;
kstat_named_t dmu_tx_dirty_over_max;
kstat_named_t dmu_tx_wrlog_over_max;
kstat_named_t dmu_tx_dirty_frees_delay;
kstat_named_t dmu_tx_quota;
} dmu_tx_stats_t;