From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: w@1wt.eu, netdev@vger.kernel.org
Subject: Re: [PATCH net-next] net: splice: avoid high order page splitting
Date: Sun, 06 Jan 2013 21:07:43 -0800 (PST) [thread overview]
Message-ID: <20130106.210743.46446075597784928.davem@davemloft.net> (raw)
In-Reply-To: <1357457478.1678.5928.camel@edumazet-glaptop>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 05 Jan 2013 23:31:18 -0800
> From: Eric Dumazet <edumazet@google.com>
>
> splice() can handle pages of any order, but network code tries hard to
> split them in PAGE_SIZE units. Not quite successfully anyway, as
> __splice_segment() assumed poff < PAGE_SIZE. This is true for
> the skb->data part, not necessarily for the fragments.
>
> This patch removes this logic to give the pages as they are in the skb.
>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
Applied.
next prev parent reply other threads:[~2013-01-07 5:07 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-05 21:49 Major network performance regression in 3.7 Willy Tarreau
2013-01-05 23:18 ` Eric Dumazet
2013-01-05 23:29 ` Willy Tarreau
2013-01-06 0:02 ` Eric Dumazet
2013-01-06 0:50 ` Willy Tarreau
2013-01-06 1:21 ` Eric Dumazet
2013-01-06 1:30 ` Willy Tarreau
2013-01-06 1:40 ` Eric Dumazet
2013-01-06 1:51 ` Eric Dumazet
2013-01-06 2:16 ` Eric Dumazet
2013-01-06 2:18 ` Willy Tarreau
2013-01-06 2:22 ` Eric Dumazet
2013-01-06 2:32 ` Willy Tarreau
2013-01-06 2:44 ` Eric Dumazet
2013-01-06 2:52 ` Willy Tarreau
2013-01-06 7:31 ` [PATCH net-next] net: splice: avoid high order page splitting Eric Dumazet
2013-01-07 5:07 ` David Miller [this message]
2013-01-06 7:35 ` Major network performance regression in 3.7 Eric Dumazet
2013-01-06 9:24 ` Willy Tarreau
2013-01-06 10:25 ` Willy Tarreau
2013-01-06 11:46 ` Romain Francoise
2013-01-06 11:53 ` Willy Tarreau
2013-01-06 12:01 ` Willy Tarreau
2013-01-06 14:59 ` Eric Dumazet
2013-01-06 15:51 ` Willy Tarreau
2013-01-06 16:39 ` Eric Dumazet
2013-01-06 16:44 ` Willy Tarreau
2013-01-06 17:10 ` Eric Dumazet
2013-01-06 17:35 ` Willy Tarreau
2013-01-06 18:39 ` Eric Dumazet
2013-01-06 18:43 ` Eric Dumazet
2013-01-06 18:51 ` Eric Dumazet
2013-01-06 19:00 ` Eric Dumazet
2013-01-06 19:34 ` Willy Tarreau
2013-01-06 19:39 ` Eric Dumazet
2013-01-06 19:53 ` Willy Tarreau
2013-01-07 4:21 ` [PATCH] tcp: fix MSG_SENDPAGE_NOTLAST logic Eric Dumazet
2013-01-07 4:59 ` David Miller
2013-01-06 21:49 ` Major network performance regression in 3.7 John Stoffel
2013-01-06 21:52 ` Willy Tarreau
2013-01-06 21:55 ` John Stoffel
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