Set zvol discard_granularity to the volblocksize.

[zfs.git] / module / zfs / zvol.c

diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c
index 32e4f3c..07bda6d 100644 (file)
--- a/module/zfs/zvol.c
+++ b/module/zfs/zvol.c
@@ -1245,6 +1245,7 @@ __zvol_create_minor(const char *name)
 #ifdef HAVE_BLK_QUEUE_DISCARD
        blk_queue_max_discard_sectors(zv->zv_queue,
            (zvol_max_discard_blocks * zv->zv_volblocksize) >> 9);
+       blk_queue_discard_granularity(zv->zv_queue, zv->zv_volblocksize);
        queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, zv->zv_queue);
 #endif
 #ifdef HAVE_BLK_QUEUE_NONROT