c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2024-12-26 11:19:32 +03:00
Code Issues Packages Projects Releases Wiki Activity

Honor logbias when writing to ZVOLs.

Browse Source 
The logbias option is not taken into account when writing to ZVOLs. We fix
that by using the same logic as in the zfs filesystem write code
(see zfs_log.c).

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #774
This commit is contained in:
Etienne Dechamps 2012-06-06 11:30:24 +02:00 committed by Brian Behlendorf
parent cac1f230e0
commit ab85f8455b
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
module/zfs/zvol.c
View File

@ -459,11 +459,15 @@ zvol_log_write(zvol_state_t *zv, dmu_tx_t *tx,
uint32_t blocksize = zv->zv_volblocksize;
zilog_t *zilog = zv->zv_zilog;
boolean_t slogging;
ssize_t immediate_write_sz;
if (zil_replaying(zilog, tx))
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 (size) {
itx_t *itx;
@ -475,7 +479,7 @@ zvol_log_write(zvol_state_t *zv, dmu_tx_t *tx,
* Unlike zfs_log_write() we can be called with
* up to DMU_MAX_ACCESS/2 (5MB) writes.
*/
if (blocksize > zvol_immediate_write_sz && !slogging &&
if (blocksize > immediate_write_sz && !slogging &&
size >= blocksize && offset % blocksize == 0) {
write_state = WR_INDIRECT; /* uses dmu_sync */
len = blocksize;