linux-kernel - [PATCH 07/18] staging/lustre/osc: get rid of old checksum initial value

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Date:	Sun, 22 Jun 2014 21:32:11 -0400
From:	Oleg Drokin <green@...uxhacker.ru>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org
Cc:	Bobi Jam <bobijam.xu@...el.com>,
	Oleg Drokin <oleg.drokin@...el.com>
Subject: [PATCH 07/18] staging/lustre/osc: get rid of old checksum initial value

From: Bobi Jam <bobijam.xu@...el.com>

Old code residue assumes initial checksum value as ~0, and relies on
that to check whether OST server has calculated bulk data checksum.
That is not the case anymore.

Signed-off-by: Bobi Jam <bobijam.xu@...el.com>
Reviewed-on: http://review.whamcloud.com/10354
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4937
Reviewed-by: Andreas Dilger <andreas.dilger@...el.com>
Reviewed-by: Bob Glossman <bob.glossman@...el.com>
Signed-off-by: Oleg Drokin <oleg.drokin@...el.com>
---
 drivers/staging/lustre/lustre/osc/osc_request.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 5804104..90e8912 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -1570,12 +1570,7 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc)
 			router = libcfs_nid2str(req->rq_bulk->bd_sender);
 		}
 
-		if (server_cksum == ~0 && rc > 0) {
-			CERROR("Protocol error: server %s set the 'checksum' "
-			       "bit, but didn't send a checksum.  Not fatal, "
-			       "but please notify on http://bugs.whamcloud.com/\n",
-			       libcfs_nid2str(peer->nid));
-		} else if (server_cksum != client_cksum) {
+		if (server_cksum != client_cksum) {
 			LCONSOLE_ERROR_MSG(0x133, "%s: BAD READ CHECKSUM: from "
 					   "%s%s%s inode "DFID" object "DOSTID
 					   " extent ["LPU64"-"LPU64"]\n",
-- 
1.9.0

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