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* [Cluster-devel] [PATCH] dlm: fix a clerical error when set SCTP_NODELAY
@ 2018-05-02  2:37 Gang He
  2018-05-02 14:58 ` Steven Whitehouse
  0 siblings, 1 reply; 2+ messages in thread
From: Gang He @ 2018-05-02  2:37 UTC (permalink / raw)
  To: cluster-devel.redhat.com

There is a clerical error when turn off Nagle's algorithm in
sctp_connect_to_sock() function, this results in turn off
Nagle's algorithm failure.
After this correction, DLM performance will be improved obviously
when using SCTP procotol.

Signed-off-by: Gang He <ghe@suse.com>
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
---
 fs/dlm/lowcomms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 5243989..8151252 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1080,7 +1080,7 @@ static void sctp_connect_to_sock(struct connection *con)
 	log_print("connecting to %d", con->nodeid);
 
 	/* Turn off Nagle's algorithm */
-	kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&one,
+	kernel_setsockopt(sock, SOL_SCTP, SCTP_NODELAY, (char *)&one,
 			  sizeof(one));
 
 	result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,
-- 
1.8.5.6



^ permalink raw reply related	[flat|nested] 2+ messages in thread

* [Cluster-devel] [PATCH] dlm: fix a clerical error when set SCTP_NODELAY
  2018-05-02  2:37 [Cluster-devel] [PATCH] dlm: fix a clerical error when set SCTP_NODELAY Gang He
@ 2018-05-02 14:58 ` Steven Whitehouse
  0 siblings, 0 replies; 2+ messages in thread
From: Steven Whitehouse @ 2018-05-02 14:58 UTC (permalink / raw)
  To: cluster-devel.redhat.com



On 02/05/18 03:37, Gang He wrote:
> There is a clerical error when turn off Nagle's algorithm in
> sctp_connect_to_sock() function, this results in turn off
> Nagle's algorithm failure.
> After this correction, DLM performance will be improved obviously
> when using SCTP procotol.
>
> Signed-off-by: Gang He <ghe@suse.com>
> Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
> ---
>   fs/dlm/lowcomms.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
> index 5243989..8151252 100644
> --- a/fs/dlm/lowcomms.c
> +++ b/fs/dlm/lowcomms.c
> @@ -1080,7 +1080,7 @@ static void sctp_connect_to_sock(struct connection *con)
>   	log_print("connecting to %d", con->nodeid);
>   
>   	/* Turn off Nagle's algorithm */
> -	kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&one,
> +	kernel_setsockopt(sock, SOL_SCTP, SCTP_NODELAY, (char *)&one,
>   			  sizeof(one));
>   
>   	result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,

Yes, that looks like a fairly obvious fix, so looks good to me,

Steve.



^ permalink raw reply	[flat|nested] 2+ messages in thread

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2018-05-02  2:37 [Cluster-devel] [PATCH] dlm: fix a clerical error when set SCTP_NODELAY Gang He
2018-05-02 14:58 ` Steven Whitehouse

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