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-rw-r--r--block/ll_rw_blk.c2
-rw-r--r--block/scsi_ioctl.c4
2 files changed, 5 insertions, 1 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 123003a9047..5873861e1db 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1925,6 +1925,8 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id)
blk_queue_max_hw_segments(q, MAX_HW_SEGMENTS);
blk_queue_max_phys_segments(q, MAX_PHYS_SEGMENTS);
+ q->sg_reserved_size = INT_MAX;
+
/*
* all done
*/
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 65c6a3cba6d..e83f1dbf7c2 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -78,7 +78,9 @@ static int sg_set_timeout(request_queue_t *q, int __user *p)
static int sg_get_reserved_size(request_queue_t *q, int __user *p)
{
- return put_user(q->sg_reserved_size, p);
+ unsigned val = min(q->sg_reserved_size, q->max_sectors << 9);
+
+ return put_user(val, p);
}
static int sg_set_reserved_size(request_queue_t *q, int __user *p)