From: Andreas Dilger <adilger@whamcloud.com>
Date: Sun, 11 Apr 2021 02:04:30 +0000 (-0600)
Subject: LU-14603 ptlrpc: quiet messages for unsupported opcodes
X-Git-Tag: 2.14.52~73
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=a23767580aebfab7f093df562ac7598e85b71b3e

LU-14603 ptlrpc: quiet messages for unsupported opcodes

Reduce message spew for unhandled RPC opcodes.

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I35496168e3aa29ecb06076654ef0aa97ba2540e5
Reviewed-on: https://review.whamcloud.com/43257
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Mike Pershin <mpershin@whamcloud.com>
Reviewed-by: Stephane Thiell <sthiell@stanford.edu>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/target/tgt_handler.c b/lustre/target/tgt_handler.c
index 4fff6a6..c3213ba 100644
--- a/lustre/target/tgt_handler.c
+++ b/lustre/target/tgt_handler.c
@@ -622,8 +622,14 @@ static struct tgt_handler *tgt_handler_find_check(struct ptlrpc_request *req)
 
 	/* opcode was not found in slice */
 	if (unlikely(s->tos_hs == NULL)) {
-		CERROR("%s: no handlers for opcode 0x%x\n", tgt_name(tgt),
-		       opc);
+		static bool printed;
+
+		/* don't spew error messages for unhandled RPCs */
+		if (!printed) {
+			CERROR("%s: no handler for opcode 0x%x from %s\n",
+			       tgt_name(tgt), opc, libcfs_id2str(req->rq_peer));
+			printed = true;
+		}
 		RETURN(ERR_PTR(-ENOTSUPP));
 	}