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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-08-28 13:25:43 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2016-08-28 14:23:26 -0400
commit045d2a6d076a2ecd7043ea543ea198af943f8b16 (patch)
tree19a7f27abb8e531c90b5de29619184d219a9d329 /fs/nfs/callback_proc.c
parente09c978aae5bedfdb379be80363b024b7d82638b (diff)
downloadlinux-045d2a6d076a2ecd7043ea543ea198af943f8b16.tar.bz2
NFSv4.1: Delay callback processing when there are referring triples
If CB_SEQUENCE tells us that the processing of this request depends on the completion of one or more referring triples (see RFC 5661 Section 2.10.6.3), delay the callback processing until after the RPC requests being referred to have completed. If we end up delaying for more than 1/2 second, then fall back to returning NFS4ERR_DELAY in reply to the callback. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/callback_proc.c')
-rw-r--r--fs/nfs/callback_proc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index a4cf6d2c14a4..c35932967722 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -454,8 +454,8 @@ static bool referring_call_exists(struct nfs_client *clp,
((u32 *)&rclist->rcl_sessionid.data)[3],
ref->rc_sequenceid, ref->rc_slotid);
- status = nfs4_slot_seqid_in_use(tbl, ref->rc_slotid,
- ref->rc_sequenceid);
+ status = nfs4_slot_wait_on_seqid(tbl, ref->rc_slotid,
+ ref->rc_sequenceid, HZ >> 1) < 0;
if (status)
goto out;
}