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Re: [PATCH] net: add per device sg_max_frags for skb

From David Miller <davem@davemloft.net>
Newsgroups linux.kernel
Subject Re: [PATCH] net: add per device sg_max_frags for skb
Date 2016-01-13 16:40 +0100
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References <qODIo-67Q-63@gated-at.bofh.it> <qQu7U-vr-21@gated-at.bofh.it> <qQuAW-X1-7@gated-at.bofh.it>
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From: Eric Dumazet <edumazet@google.com>
Date: Wed, 13 Jan 2016 06:19:11 -0800

> 2) TCP stack has coalescing support. write(2) or sendmsg(2) should
> append data into the last skb in write queue, and still use 32 KB
> frags.

Another way to get pathological SKBs is to do lots of tiny sendpage()
calls over discontiguous areas of the file.

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[PATCH] net: add per device sg_max_frags for skb Hans Westgaard Ry <hans.westgaard.ry@oracle.com> - 2016-01-06 14:20 +0100
  RE: [PATCH] net: add per device sg_max_frags for skb David Laight <David.Laight@ACULAB.COM> - 2016-01-06 15:10 +0100
    Re: [PATCH] net: add per device sg_max_frags for skb Hans Westgaard Ry <hans.westgaard.ry@oracle.com> - 2016-01-08 11:00 +0100
      RE: [PATCH] net: add per device sg_max_frags for skb David Laight <David.Laight@ACULAB.COM> - 2016-01-08 11:40 +0100
      Re: [PATCH] net: add per device sg_max_frags for skb Hannes Frederic Sowa <hannes@stressinduktion.org> - 2016-01-08 12:50 +0100
        Re: [PATCH] net: add per device sg_max_frags for skb Hans Westgaard Ry <hans.westgaard.ry@oracle.com> - 2016-01-13 15:00 +0100
          Re: [PATCH] net: add per device sg_max_frags for skb Eric Dumazet <edumazet@google.com> - 2016-01-13 15:30 +0100
          Re: [PATCH] net: add per device sg_max_frags for skb Eric Dumazet <edumazet@google.com> - 2016-01-13 15:30 +0100
            Re: [PATCH] net: add per device sg_max_frags for skb Hannes Frederic Sowa <hannes@stressinduktion.org> - 2016-01-13 16:10 +0100
            Re: [PATCH] net: add per device sg_max_frags for skb David Miller <davem@davemloft.net> - 2016-01-13 16:40 +0100
              Re: [PATCH] net: add per device sg_max_frags for skb Eric Dumazet <edumazet@google.com> - 2016-01-13 16:50 +0100
          Re: [PATCH] net: add per device sg_max_frags for skb ebiederm@xmission.com (Eric W. Biederman) - 2016-01-13 22:20 +0100
  Re: [PATCH] net: add per device sg_max_frags for skb Eric Dumazet <eric.dumazet@gmail.com> - 2016-01-06 15:10 +0100
    Re: [PATCH] net: add per device sg_max_frags for skb Hans Westgaard Ry <hans.westgaard.ry@oracle.com> - 2016-01-08 11:10 +0100

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