[ofa-general] [GIT PULL] 2.6.21-rc3 please pull rdma-dev.git

Sean Hefty sean.hefty at intel.com
Tue Mar 6 12:24:01 PST 2007


Roland, I added another minor fix to my git tree:

	git://git.openfabrics.org/~shefty/rdma-dev.git for-roland

	rdma_ucm: avoid sending reject if backlog is full

I don't have any other pending changes for 2.6.21, but we're continuing
scalability testing.  This fix is not critical, but does help us scale on larger
clusters (256 nodes).

- Sean
---
    rdma_ucm: avoid sending reject if backlog is full
    
    Change the returned error code to ENOMEM if the connection event
    backlog is full.  This prevents the ib_cm from issuing a reject
    on the connection, which can allow retries to succeed.
    
    Signed-off-by: Sean Hefty <sean.hefty at intel.com>

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index b516b93..c859134 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -266,7 +266,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
 	mutex_lock(&ctx->file->mut);
 	if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
 		if (!ctx->backlog) {
-			ret = -EDQUOT;
+			ret = -ENOMEM;
 			kfree(uevent);
 			goto out;
 		}



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