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Make zfs_immediate_write_sz a module paramater

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zfs_immediate_write_sz variable is a tunable, but lacks proper
module_param() instrumentation.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1032
This commit is contained in:
Cyril Plisko 2012-10-08 20:02:20 +02:00 committed by Brian Behlendorf
parent 5b7e5b5ab9
commit 15fd274973
1 changed files with 7 additions and 2 deletions
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9
module/zfs/zfs_log.c
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@ -449,7 +449,7 @@ zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
/* /*
* zfs_log_write() handles TX_WRITE transactions. * zfs_log_write() handles TX_WRITE transactions.
*/ */
ssize_t zfs_immediate_write_sz = 32768; long zfs_immediate_write_sz = 32768;
void void
zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
@ -464,7 +464,7 @@ zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
return; return;
immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
? 0 : zfs_immediate_write_sz; ? 0 : (ssize_t)zfs_immediate_write_sz;
slogging = spa_has_slogs(zilog->zl_spa) && slogging = spa_has_slogs(zilog->zl_spa) &&
(zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY);
@ -675,3 +675,8 @@ zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
itx->itx_sync = (zp->z_sync_cnt != 0); itx->itx_sync = (zp->z_sync_cnt != 0);
zil_itx_assign(zilog, itx, tx); zil_itx_assign(zilog, itx, tx);
} }
#if defined(_KERNEL) && defined(HAVE_SPL)
module_param(zfs_immediate_write_sz, long, 0644);
MODULE_PARM_DESC(zfs_immediate_write_sz, "Largest data block to write to zil");
#endif