diff options
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index e2f7a708e20d..31ace3dd33e4 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2332,7 +2332,6 @@ static int rbd_img_request_fill(struct rbd_img_request *img_request, (int)type, data_desc); img_offset = img_request->offset; - img_end = rbd_dev->header.image_size; resid = img_request->length; rbd_assert(resid > 0); @@ -2397,13 +2396,20 @@ static int rbd_img_request_fill(struct rbd_img_request *img_request, if (!offset && (length == object_size) && (!img_request_layered_test(img_request) || (rbd_dev->parent_overlap <= - obj_request->img_offset))) + obj_request->img_offset))) { opcode = CEPH_OSD_OP_DELETE; - else if ((offset + length == object_size) || - (obj_request->img_offset + length == img_end)) + } else if ((offset + length == object_size)) { opcode = CEPH_OSD_OP_TRUNCATE; - else - opcode = CEPH_OSD_OP_ZERO; + } else { + down_read(&rbd_dev->header_rwsem); + img_end = rbd_dev->header.image_size; + up_read(&rbd_dev->header_rwsem); + + if (obj_request->img_offset + length == img_end) + opcode = CEPH_OSD_OP_TRUNCATE; + else + opcode = CEPH_OSD_OP_ZERO; + } } else if (img_request_write_test(img_request)) { op_type = OBJ_OP_WRITE; opcode = CEPH_OSD_OP_WRITE; |