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From: "Michael S. Tsirkin" <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Ian Campbell <ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
	Eric Dumazet
	<eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Neil Brown <neilb-l3A5Bk7waGM@public.gmane.org>,
	"J. Bruce Fields"
	<bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>,
	linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 9/9] sunrpc: use SKB fragment destructors to delay completion until page is released by network stack.
Date: Thu, 10 May 2012 14:19:48 +0300	[thread overview]
Message-ID: <20120510111948.GA9609@redhat.com> (raw)
In-Reply-To: <1336056971-7839-9-git-send-email-ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>

On Thu, May 03, 2012 at 03:56:11PM +0100, Ian Campbell wrote:
> diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
> index f6d8c73..1145929 100644
> --- a/net/sunrpc/svcsock.c
> +++ b/net/sunrpc/svcsock.c
> @@ -198,7 +198,8 @@ int svc_send_common(struct socket *sock, struct xdr_buf *xdr,
>  	while (pglen > 0) {
>  		if (slen == size)
>  			flags = 0;
> -		result = kernel_sendpage(sock, *ppage, NULL, base, size, flags);
> +		result = kernel_sendpage(sock, *ppage, xdr->destructor,
> +					 base, size, flags);
>  		if (result > 0)
>  			len += result;
>  		if (result != size)

So I tried triggering this by simply creating an nfs export on localhost
and copying a large file out with dd, but this never seems to trigger
this code.

Any idea how to test?

-- 
MST
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  parent reply	other threads:[~2012-05-10 11:19 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-03 14:55 [PATCH v5 0/9] skb paged fragment destructors Ian Campbell
2012-05-03 14:56 ` [PATCH 1/9] net: add and use SKB_ALLOCSIZE Ian Campbell
2012-05-03 14:56 ` [PATCH 2/9] net: Use SKB_WITH_OVERHEAD in build_skb Ian Campbell
2012-05-03 14:56 ` [PATCH 3/9] chelsio: use SKB_WITH_OVERHEAD Ian Campbell
2012-05-03 14:56 ` [PATCH 4/9] skb: add skb_shinfo_init and use for both alloc_skb, build_skb and skb_recycle Ian Campbell
2012-05-03 14:56 ` [PATCH 5/9] net: pad skb data and shinfo as a whole rather than individually Ian Campbell
2012-05-03 14:56 ` [PATCH 6/9] net: add support for per-paged-fragment destructors Ian Campbell
2012-05-03 14:56 ` [PATCH 7/9] net: add skb_orphan_frags to copy aside frags with destructors Ian Campbell
2012-05-03 15:41   ` Michael S. Tsirkin
2012-05-03 17:55     ` David Miller
2012-05-03 21:10       ` Michael S. Tsirkin
2012-05-04  6:54         ` David Miller
2012-05-04 10:03           ` Michael S. Tsirkin
2012-05-04 10:51             ` Ian Campbell
2012-05-06 17:01           ` Michael S. Tsirkin
2012-05-06 13:54   ` Michael S. Tsirkin
2012-05-07 10:24   ` Michael S. Tsirkin
2012-05-09  9:36     ` Ian Campbell
2012-05-03 14:56 ` [PATCH 8/9] net: add paged frag destructor support to kernel_sendpage Ian Campbell
2012-05-10 11:48   ` Michael S. Tsirkin
2012-05-03 14:56 ` [PATCH 9/9] sunrpc: use SKB fragment destructors to delay completion until page is released by network stack Ian Campbell
     [not found]   ` <1336056971-7839-9-git-send-email-ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
2012-05-10 11:19     ` Michael S. Tsirkin [this message]
     [not found]       ` <20120510111948.GA9609-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-05-10 13:26         ` Ian Campbell

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