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-rw-r--r--module/zfs/vdev_queue.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/module/zfs/vdev_queue.c b/module/zfs/vdev_queue.c
index 6b3e87291..40cba340a 100644
--- a/module/zfs/vdev_queue.c
+++ b/module/zfs/vdev_queue.c
@@ -393,7 +393,7 @@ vdev_queue_init(vdev_t *vd)
sizeof (zio_t), offsetof(struct zio, io_queue_node));
}
- vq->vq_lastoffset = 0;
+ vq->vq_last_offset = 0;
}
void
@@ -699,9 +699,8 @@ again:
*/
tree = vdev_queue_class_tree(vq, p);
vq->vq_io_search.io_timestamp = 0;
- vq->vq_io_search.io_offset = vq->vq_last_offset + 1;
- VERIFY3P(avl_find(tree, &vq->vq_io_search,
- &idx), ==, NULL);
+ vq->vq_io_search.io_offset = vq->vq_last_offset - 1;
+ VERIFY3P(avl_find(tree, &vq->vq_io_search, &idx), ==, NULL);
zio = avl_nearest(tree, idx, AVL_AFTER);
if (zio == NULL)
zio = avl_first(tree);
@@ -728,7 +727,7 @@ again:
}
vdev_queue_pending_add(vq, zio);
- vq->vq_last_offset = zio->io_offset;
+ vq->vq_last_offset = zio->io_offset + zio->io_size;
return (zio);
}
@@ -806,7 +805,7 @@ vdev_queue_io_done(zio_t *zio)
}
/*
- * As these three methods are only used for load calculations we're not
+ * As these two methods are only used for load calculations we're not
* concerned if we get an incorrect value on 32bit platforms due to lack of
* vq_lock mutex use here, instead we prefer to keep it lock free for
* performance.
@@ -818,15 +817,9 @@ vdev_queue_length(vdev_t *vd)
}
uint64_t
-vdev_queue_lastoffset(vdev_t *vd)
+vdev_queue_last_offset(vdev_t *vd)
{
- return (vd->vdev_queue.vq_lastoffset);
-}
-
-void
-vdev_queue_register_lastoffset(vdev_t *vd, zio_t *zio)
-{
- vd->vdev_queue.vq_lastoffset = zio->io_offset + zio->io_size;
+ return (vd->vdev_queue.vq_last_offset);
}
#if defined(_KERNEL) && defined(HAVE_SPL)