[lustre-devel] [PATCH 014/151] lustre: ldlm: testcases for multiple modify RPCs feature

[James Simmons]

From: Gregoire Pichon <gregoire.pichon at bull.net>

This patch creates new testcases in the Auster test suite to
test the support of multiple modify RPCs in flight feature.

Two new OBD_FAIL codes are added to allow several failure occurences
of the reint requests or replies. This is needed because the current
fail checks impose the OBD_FAIL_ONCE flag.

WC-bug-id: https://jira.whamcloud.com/browse/LU-5319
Lustre-commit: c2d27a0f1268 ("LU-5319 tests: testcases for multiple modify RPCs feature")
Signed-off-by: Gregoire Pichon <gregoire.pichon at bull.net>
Reviewed-on: http://review.whamcloud.com/14861
Reviewed-by: Jian Yu <yujian at whamcloud.com>
Reviewed-by: Andreas Dilger <adilger at whamcloud.com>
Signed-off-by: James Simmons <jsimmons at infradead.org>
---
 fs/lustre/include/obd_support.h | 2 ++
 fs/lustre/ldlm/ldlm_lib.c       | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/fs/lustre/include/obd_support.h b/fs/lustre/include/obd_support.h
index 3e15cac..7999ac6 100644
--- a/fs/lustre/include/obd_support.h
+++ b/fs/lustre/include/obd_support.h
@@ -189,6 +189,8 @@
 #define OBD_FAIL_MDS_SWAP_LAYOUTS_NET			0x14f
 #define OBD_FAIL_MDS_HSM_ACTION_NET			0x150
 #define OBD_FAIL_MDS_CHANGELOG_INIT			0x151
+#define OBD_FAIL_MDS_REINT_MULTI_NET			0x159
+#define OBD_FAIL_MDS_REINT_MULTI_NET_REP		0x15a
 
 /* layout lock */
 #define OBD_FAIL_MDS_NO_LL_GETATTR			0x170
diff --git a/fs/lustre/ldlm/ldlm_lib.c b/fs/lustre/ldlm/ldlm_lib.c
index 887507d..a3b8df4 100644
--- a/fs/lustre/ldlm/ldlm_lib.c
+++ b/fs/lustre/ldlm/ldlm_lib.c
@@ -689,6 +689,9 @@ int target_pack_pool_reply(struct ptlrpc_request *req)
 		DEBUG_REQ(D_ERROR, req, "dropping reply");
 		return -ECOMM;
 	}
+	if (unlikely(lustre_msg_get_opc(req->rq_reqmsg) == MDS_REINT &&
+		     OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_MULTI_NET_REP)))
+		return -ECOMM;
 
 	if (unlikely(rc)) {
 		DEBUG_REQ(D_NET, req, "processing error (%d)", rc);
-- 
1.8.3.1