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Message-ID: <20120402092627.GC7607@moon> Date: Mon, 2 Apr 2012 13:26:27 +0400 From: Cyrill Gorcunov <gorcunov@...nvz.org> To: Konstantin Khlebnikov <khlebnikov@...nvz.org> Cc: Alan Cox <alan@...rguk.ukuu.org.uk>, Alexey Dobriyan <adobriyan@...il.com>, "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, "viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>, "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>, "drepper@...il.com" <drepper@...il.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org> Subject: Re: [PATCH] nextfd(2) On Mon, Apr 02, 2012 at 12:38:25PM +0400, Konstantin Khlebnikov wrote: > Alan Cox wrote: > >>Can we add "pid" argument to be able to search next fd in other task? > >>Together with sys_kcmp() this will be very useful for checkpoint/restore. > > > >That would raise all sorts of security questions unless protected, plus > >its got races. If you want to do that and you have the rights you can do > >it via procfs anyway. > > Don't worry, I just asked. =) Seems like crtools dumps fd in the target-task context, > so the current version is suitable. Kind of ;) At moment we drain fds from dumpee task context to our tool context and then dump them. Cyrill -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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