diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/rbd.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 09514d9d8a97..93369a1a08e1 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2048,6 +2048,7 @@ static int rbd_obj_read_sync(struct rbd_device *rbd_dev, struct ceph_osd_client *osdc; struct page **pages = NULL; u32 page_count; + size_t size; int ret; page_count = (u32) calc_pages_for(offset, length); @@ -2084,7 +2085,10 @@ static int rbd_obj_read_sync(struct rbd_device *rbd_dev, ret = obj_request->result; if (ret < 0) goto out; - ret = ceph_copy_from_page_vector(pages, buf, 0, obj_request->xferred); + + rbd_assert(obj_request->xferred <= (u64) SIZE_MAX); + size = (size_t) obj_request->xferred; + ret = ceph_copy_from_page_vector(pages, buf, 0, size); if (version) *version = obj_request->version; out: |