diff options
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 47 |
1 files changed, 20 insertions, 27 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 4f5a647dbfd2..22085e86a409 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1274,42 +1274,30 @@ static void rbd_obj_request_complete(struct rbd_obj_request *obj_request) complete_all(&obj_request->completion); } -static void rbd_osd_trivial_callback(struct rbd_obj_request *obj_request, - struct ceph_osd_op *op) +static void rbd_osd_trivial_callback(struct rbd_obj_request *obj_request) { dout("%s: obj %p\n", __func__, obj_request); obj_request_done_set(obj_request); } -static void rbd_osd_read_callback(struct rbd_obj_request *obj_request, - struct ceph_osd_op *op) +static void rbd_osd_read_callback(struct rbd_obj_request *obj_request) { - u64 xferred; - /* - * We support a 64-bit length, but ultimately it has to be - * passed to blk_end_request(), which takes an unsigned int. - */ - xferred = le64_to_cpu(op->extent.length); - rbd_assert(xferred < (u64) UINT_MAX); dout("%s: obj %p result %d %llu/%llu\n", __func__, obj_request, - obj_request->result, xferred, obj_request->length); + obj_request->result, obj_request->xferred, obj_request->length); if (obj_request->result == (s32) -ENOENT) { zero_bio_chain(obj_request->bio_list, 0); obj_request->result = 0; - } else if (xferred < obj_request->length && !obj_request->result) { - zero_bio_chain(obj_request->bio_list, xferred); - xferred = obj_request->length; + } else if (obj_request->xferred < obj_request->length && + !obj_request->result) { + zero_bio_chain(obj_request->bio_list, obj_request->xferred); + obj_request->xferred = obj_request->length; } - obj_request->xferred = xferred; obj_request_done_set(obj_request); } -static void rbd_osd_write_callback(struct rbd_obj_request *obj_request, - struct ceph_osd_op *op) +static void rbd_osd_write_callback(struct rbd_obj_request *obj_request) { - - obj_request->xferred = le64_to_cpu(op->extent.length); dout("%s: obj %p result %d %llu/%llu\n", __func__, obj_request, obj_request->result, obj_request->xferred, obj_request->length); @@ -1331,8 +1319,7 @@ static void rbd_osd_write_callback(struct rbd_obj_request *obj_request, * For a simple stat call there's nothing to do. We'll do more if * this is part of a write sequence for a layered image. */ -static void rbd_osd_stat_callback(struct rbd_obj_request *obj_request, - struct ceph_osd_op *op) +static void rbd_osd_stat_callback(struct rbd_obj_request *obj_request) { dout("%s: obj %p\n", __func__, obj_request); obj_request_done_set(obj_request); @@ -1352,7 +1339,6 @@ static void rbd_osd_req_callback(struct ceph_osd_request *osd_req, rbd_assert(!!obj_request->img_request ^ (obj_request->which == BAD_WHICH)); - obj_request->xferred = le32_to_cpu(msg->hdr.data_len); reply_head = msg->front.iov_base; obj_request->result = (s32) le32_to_cpu(reply_head->result); obj_request->version = le64_to_cpu(osd_req->r_reassert_version.version); @@ -1360,22 +1346,29 @@ static void rbd_osd_req_callback(struct ceph_osd_request *osd_req, num_ops = le32_to_cpu(reply_head->num_ops); WARN_ON(num_ops != 1); /* For now */ + /* + * We support a 64-bit length, but ultimately it has to be + * passed to blk_end_request(), which takes an unsigned int. + */ op = &reply_head->ops[0]; + obj_request->xferred = le64_to_cpu(op->extent.length); + rbd_assert(obj_request->xferred < (u64) UINT_MAX); + opcode = le16_to_cpu(op->op); switch (opcode) { case CEPH_OSD_OP_READ: - rbd_osd_read_callback(obj_request, op); + rbd_osd_read_callback(obj_request); break; case CEPH_OSD_OP_WRITE: - rbd_osd_write_callback(obj_request, op); + rbd_osd_write_callback(obj_request); break; case CEPH_OSD_OP_STAT: - rbd_osd_stat_callback(obj_request, op); + rbd_osd_stat_callback(obj_request); break; case CEPH_OSD_OP_CALL: case CEPH_OSD_OP_NOTIFY_ACK: case CEPH_OSD_OP_WATCH: - rbd_osd_trivial_callback(obj_request, op); + rbd_osd_trivial_callback(obj_request); break; default: rbd_warn(NULL, "%s: unsupported op %hu\n", |