diff options
Diffstat (limited to 'module/zfs/zvol.c')
| -rw-r--r-- | module/zfs/zvol.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c index d0f7b9912..fef1d299a 100644 --- a/module/zfs/zvol.c +++ b/module/zfs/zvol.c @@ -1468,6 +1468,9 @@ zvol_alloc(dev_t dev, const char *name) blk_queue_make_request(zv->zv_queue, zvol_request); blk_queue_set_write_cache(zv->zv_queue, B_TRUE, B_TRUE); + /* Limit read-ahead to a single page to prevent over-prefetching. */ + blk_queue_set_read_ahead(zv->zv_queue, 1); + /* Disable write merging in favor of the ZIO pipeline. */ queue_flag_set(QUEUE_FLAG_NOMERGES, zv->zv_queue); |