From: Xiubo Li <xiubli@xxxxxxxxxx> The debug logs: 2725523 <7>[ 8771.114348] libceph: [0] got 1 extents 2725524 <7>[ 8771.114353] libceph: [0] ext 0 off 0x66000 len 0x4000 2725525 <7>[ 8771.114370] libceph: prep_next_sparse_read: [0] completed extent array len 1 cursor->resid 0 2725526 <7>[ 8771.114374] libceph: read_partial have 0, left 21, con->v1.in_base_pos 53 2725527 <7>[ 8771.114379] libceph: read_partial have 14, left 7, con->v1.in_base_pos 67 ====> there were still 7 bytes not received 2725528 <7>[ 8771.114382] libceph: read_partial return 0 2725529 <7>[ 8771.114384] libceph: try_read done on 0000000094d53202 ret 0 2725530 <7>[ 8771.114387] libceph: try_write start 0000000094d53202 state 12 2725531 <7>[ 8771.114389] libceph: try_write out_kvec_bytes 0 2725532 <7>[ 8771.114391] libceph: try_write nothing else to write. 2725533 <7>[ 8771.114393] libceph: try_write done on 0000000094d53202 ret 0 2725534 <7>[ 8771.114396] libceph: put_osd 000000009b11f20c 5 -> 4 2725535 <7>[ 8771.114450] libceph: ceph_sock_data_ready 0000000094d53202 state = 12, queueing work 2725536 <7>[ 8771.114454] libceph: get_osd 000000009b11f20c 4 -> 5 2725537 <7>[ 8771.114457] libceph: queue_con_delay 0000000094d53202 0 2725538 <7>[ 8771.114651] libceph: try_read start 0000000094d53202 state 12 2725539 <7>[ 8771.114655] libceph: try_read tag 7 in_base_pos 67 2725540 <7>[ 8771.114657] libceph: read_partial_message con 0000000094d53202 msg 0000000060b8a473 2725541 <7>[ 8771.114660] libceph: read_partial return 1 2725542 <7>[ 8771.114663] libceph: read_partial have 14, left 7, con->v1.in_base_pos 67 ====> the rest 7 bytes came 2725543 <7>[ 8771.114669] libceph: read_partial return 1 2725544 <7>[ 8771.114671] libceph: read_partial_message got msg 0000000060b8a473 164 (4271800174) + 0 (0) + 16408 (2739232014) 2725545 <7>[ 8771.114677] libceph: ===== 0000000060b8a473 73 from osd0 43=osd_opreply len 164+0+16408 (4271800174 0 2739232014) ===== 2725546 <7>[ 8771.114683] libceph: handle_reply msg 0000000060b8a473 tid 99 2725547 <7>[ 8771.114687] libceph: handle_reply req 000000006ba179f6 tid 99 flags 0x400015 pgid 3.2b epoch 53 attempt 0 v 0'0 uv 5984 2725548 <7>[ 8771.114693] libceph: req 000000006ba179f6 tid 99 op 0 rval 0 len 16408 2725549 <7>[ 8771.114697] libceph: handle_reply req 000000006ba179f6 tid 99 result 0 data_len 16408 2725550 <7>[ 8771.114701] libceph: finish_request req 000000006ba179f6 tid 99 ====> the request was successfully finished V3: - rename read_sparse_msg_XX to read_partial_sparse_msg_XX - fix the sparse-read bug in the messager v1 code. V2: - fix the sparse-read bug in the sparse-read code instead Xiubo Li (3): libceph: fail the sparse-read if there still has data in socket libceph: rename read_sparse_msg_XX to read_partial_sparse_msg_XX libceph: just wait for more data to be available on the socket include/linux/ceph/messenger.h | 2 ++ net/ceph/messenger.c | 1 + net/ceph/messenger_v1.c | 29 ++++++++++++++++++++--------- net/ceph/osd_client.c | 5 ++++- 4 files changed, 27 insertions(+), 10 deletions(-) -- 2.43.0
