From: "David S. Miller" <davem@redhat.com>
To: akpm@zip.com.au
Cc: bcrl@redhat.com, hugh@veritas.com, marcelo@conectiva.com.br,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] __free_pages_ok oops
Date: Wed, 06 Feb 2002 22:49:40 -0800 (PST) [thread overview]
Message-ID: <20020206.224940.122062252.davem@redhat.com> (raw)
In-Reply-To: <3C621C74.8A005EB6@zip.com.au>
In-Reply-To: <3C6214F0.A66C89CF@zip.com.au> <20020206.215539.33252283.davem@redhat.com> <3C621C74.8A005EB6@zip.com.au>
From: Andrew Morton <akpm@zip.com.au>
Date: Wed, 06 Feb 2002 22:19:32 -0800
It's only a problem if this is the final put_page(). In the
case of sendfile(), process-context code can be taught to take
a temporary reference on the page, and only release it after the network
stack is known to have finished with the page. sendfile is synchronous, yes?
Userspace can return long before the SKBs are free'd up. That SKB
free doesn't happen until the ACKs come back from the receiver.
next prev parent reply other threads:[~2002-02-07 6:52 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-06 19:06 [PATCH] __free_pages_ok oops Hugh Dickins
2002-02-06 19:47 ` Andrew Morton
2002-02-06 20:15 ` Hugh Dickins
2002-02-06 21:11 ` Andrew Morton
2002-02-07 20:31 ` Manfred Spraul
2002-02-07 5:09 ` Benjamin LaHaise
2002-02-07 5:47 ` Andrew Morton
2002-02-07 5:55 ` David S. Miller
2002-02-07 6:19 ` Andrew Morton
2002-02-07 6:49 ` David S. Miller [this message]
2002-02-07 7:07 ` Andrew Morton
2002-02-07 11:52 ` Hugh Dickins
2002-02-07 12:34 ` Rik van Riel
2002-02-07 12:37 ` David S. Miller
2002-02-07 12:44 ` Rik van Riel
2002-02-07 13:19 ` Hugh Dickins
2002-02-07 13:27 ` Rik van Riel
2002-02-07 13:55 ` Daniel Phillips
2002-02-07 14:28 ` Hugh Dickins
2002-02-07 14:56 ` Rik van Riel
2002-02-07 20:21 ` Hugh Dickins
2002-02-07 20:58 ` Andrea Arcangeli
2002-02-07 21:09 ` Andrew Morton
2002-02-07 22:18 ` Andrea Arcangeli
2002-02-07 22:31 ` Andrew Morton
2002-02-07 23:09 ` Andrea Arcangeli
2002-02-07 23:27 ` Andrew Morton
2002-02-08 17:46 ` Hugh Dickins
2002-02-09 14:14 ` Gerd Knorr
2002-02-09 15:47 ` arjan
2002-02-09 14:33 ` Benjamin LaHaise
2002-02-12 20:19 ` Hugh Dickins
2002-02-13 18:52 ` Marcelo Tosatti
2002-02-14 10:47 ` Hugh Dickins
2002-02-14 11:10 ` Gerd Knorr
2002-02-14 13:10 ` Andrea Arcangeli
2002-02-14 14:01 ` Hugh Dickins
2002-02-14 15:17 ` Andrea Arcangeli
2002-02-14 16:27 ` Linus Torvalds
2002-02-25 18:32 ` Benjamin LaHaise
2002-02-25 19:35 ` Linus Torvalds
2002-02-07 9:48 ` Benjamin LaHaise
-- strict thread matches above, loose matches on Subject: below --
2002-02-09 8:52 alad
2002-02-09 10:46 ` Hugh Dickins
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