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| author | Alex Elder | 2013-03-26 00:16:11 +0100 |
|---|---|---|
| committer | Sage Weil | 2013-05-02 06:17:19 +0200 |
| commit | ad885927dee2e72fbfab624c7599cb9d9352cc04 (patch) | |
| tree | ba97df9b6f8eef6a669bd811c9b8f2776e02951d /net/ceph/osd_client.c | |
| parent | libceph: requeue only sent requests when kicking (diff) | |
| download | kernel-qcow2-linux-ad885927dee2e72fbfab624c7599cb9d9352cc04.tar.gz kernel-qcow2-linux-ad885927dee2e72fbfab624c7599cb9d9352cc04.tar.xz kernel-qcow2-linux-ad885927dee2e72fbfab624c7599cb9d9352cc04.zip | |
libceph: keep request lists in tid order
In __map_request(), when adding a request to an osd client's unsent
list, add it to the tail rather than the head. That way the newest
entries (with the highest tid value) will be last.
Maintain an osd's request list in order of increasing tid also.
Finally--to be consistent--maintain an osd client's "notarget" list
in that order as well.
This partially resolves:
http://tracker.ceph.com/issues/4392
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-off-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net/ceph/osd_client.c')
| -rw-r--r-- | net/ceph/osd_client.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 8b84fb4980ba..356f7bc4ae4b 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -619,7 +619,7 @@ static void __kick_osd_requests(struct ceph_osd_client *osdc, BUG_ON(!list_empty(&req->r_req_lru_item)); __register_request(osdc, req); list_add_tail(&req->r_req_lru_item, &osdc->req_unsent); - list_add(&req->r_osd_item, &req->r_osd->o_requests); + list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); __unregister_linger_request(osdc, req); dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid, osd->o_osd); @@ -1035,10 +1035,10 @@ static int __map_request(struct ceph_osd_client *osdc, if (req->r_osd) { __remove_osd_from_lru(req->r_osd); - list_add(&req->r_osd_item, &req->r_osd->o_requests); - list_move(&req->r_req_lru_item, &osdc->req_unsent); + list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); + list_move_tail(&req->r_req_lru_item, &osdc->req_unsent); } else { - list_move(&req->r_req_lru_item, &osdc->req_notarget); + list_move_tail(&req->r_req_lru_item, &osdc->req_notarget); } err = 1; /* osd or pg changed */ |