From: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
To: glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org,
rdunlap-/UHa2rfvQTnk1uMJSBkQmQ@public.gmane.org
Subject: Re: [PATCH 1/2] net: fix sleeping while atomic problem in sock mem_cgroup.
Date: Fri, 16 Dec 2011 15:35:27 -0500 (EST) [thread overview]
Message-ID: <20111216.153527.844718089764883031.davem@davemloft.net> (raw)
In-Reply-To: <1324032720-13752-1-git-send-email-glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
From: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Date: Fri, 16 Dec 2011 14:51:59 +0400
> We can't scan the proto_list to initialize sock cgroups, as it
> holds a rwlock, and we also want to keep the code generic enough to
> avoid calling the initialization functions of protocols directly,
>
> Convert proto_list_lock into a mutex, so we can sleep and do the
> necessary allocations. This lock is seldom taken, so there shouldn't
> be any performance penalties associated with that
>
> Signed-off-by: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Applied.
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prev parent reply other threads:[~2011-12-16 20:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-16 10:51 [PATCH 1/2] net: fix sleeping while atomic problem in sock mem_cgroup Glauber Costa
[not found] ` <1324032720-13752-1-git-send-email-glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2011-12-16 10:52 ` [PATCH 2/2] net: fix compilation with !CONFIG_NET Glauber Costa
2011-12-16 20:35 ` David Miller
2011-12-16 20:35 ` David Miller [this message]
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