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| author | Neil Perrin <Neil.Perrin@Sun.COM> | 2009-08-14 11:18:12 -0600 |
|---|---|---|
| committer | Neil Perrin <Neil.Perrin@Sun.COM> | 2009-08-14 11:18:12 -0600 |
| commit | e09fa4dacfb671e707d50a55ae9b5cc191e1b8cb (patch) | |
| tree | c030579dcc87f0eab65e5e5152a6ca3ac6405dd4 /usr/src/uts/common/fs/zfs/zvol.c | |
| parent | 63f531d1cf94e7ff3e74e15ca709808d96e239f3 (diff) | |
| download | illumos-gate-e09fa4dacfb671e707d50a55ae9b5cc191e1b8cb.tar.gz | |
PSARC 2009/423 ZFS logbias property
6832481 ZFS separate intent log bypass property
Diffstat (limited to 'usr/src/uts/common/fs/zfs/zvol.c')
| -rw-r--r-- | usr/src/uts/common/fs/zfs/zvol.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/usr/src/uts/common/fs/zfs/zvol.c b/usr/src/uts/common/fs/zfs/zvol.c index 678416dfa3..70d9d1b440 100644 --- a/usr/src/uts/common/fs/zfs/zvol.c +++ b/usr/src/uts/common/fs/zfs/zvol.c @@ -990,6 +990,7 @@ zvol_log_write(zvol_state_t *zv, dmu_tx_t *tx, offset_t off, ssize_t resid, uint32_t blocksize = zv->zv_volblocksize; zilog_t *zilog = zv->zv_zilog; boolean_t slogging; + ssize_t immediate_write_sz; if (zil_disable) return; @@ -1001,7 +1002,11 @@ zvol_log_write(zvol_state_t *zv, dmu_tx_t *tx, offset_t off, ssize_t resid, return; } - slogging = spa_has_slogs(zilog->zl_spa); + immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) + ? 0 : zvol_immediate_write_sz; + + slogging = spa_has_slogs(zilog->zl_spa) && + (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); while (resid) { itx_t *itx; @@ -1013,7 +1018,7 @@ zvol_log_write(zvol_state_t *zv, dmu_tx_t *tx, offset_t off, ssize_t resid, * Unlike zfs_log_write() we can be called with * upto DMU_MAX_ACCESS/2 (5MB) writes. */ - if (blocksize > zvol_immediate_write_sz && !slogging && + if (blocksize > immediate_write_sz && !slogging && resid >= blocksize && off % blocksize == 0) { write_state = WR_INDIRECT; /* uses dmu_sync */ len = blocksize; |