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Message-ID: <20130112185524.GA26170@redhat.com> Date: Sat, 12 Jan 2013 19:55:24 +0100 From: Oleg Nesterov <oleg@...hat.com> To: Andrey Wagin <avagin@...il.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, linux-kernel@...r.kernel.org, criu@...nvz.org, linux-fsdevel@...r.kernel.org, linux-api@...r.kernel.org, Alexander Viro <viro@...iv.linux.org.uk>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, David Howells <dhowells@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Michael Kerrisk <mtk.manpages@...il.com>, Pavel Emelyanov <xemul@...allels.com>, Cyrill Gorcunov <gorcunov@...nvz.org> Subject: Re: [PATCH 2/3] signalfd: add ability to return siginfo in a raw format (v2) On 01/10, Andrey Wagin wrote: > > 2012/12/28 Oleg Nesterov <oleg@...hat.com>: > >> > >> This functionality is required for checkpointing pending signals. > > > > And this should be used along with pread(). > > > > I won't argue, but perhaps we should simply postulate that pread() > > always dumps siginfo in raw format and avoid the new flag? > > I won't argue too:), but I think the flag is more flexiable. The flag > allows to get raw siginfo from read(), it may be useful not only for > checkpoint/restore. pread with offset = 0 is equal to read(), so the > interface with the flag is more clear. OK, I agree. Oleg. -- 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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