From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Kerrisk (man-pages)" Subject: Re: [PATCH] mm: msync: require either MS_ASYNC or MS_SYNC Date: Fri, 04 Apr 2014 08:54:20 +0200 Message-ID: <533E571C.4080902@gmail.com> References: <533B04A9.6090405@bbn.com> <20140402111032.GA27551@infradead.org> <1396439119.2726.29.camel@menhir> <533CA0F6.2070100@bbn.com> <533D4B42.4040600@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <533D4B42.4040600@codeaurora.org> Sender: owner-linux-mm@kvack.org To: Christopher Covington Cc: mtk.manpages@gmail.com, Richard Hansen , Steven Whitehouse , Christoph Hellwig , "linux-mm@kvack.org" , lkml , Linux API , Greg Troxel , Peter Zijlstra List-Id: linux-api@vger.kernel.org On 04/03/2014 01:51 PM, Christopher Covington wrote: > On 04/03/2014 04:25 AM, Michael Kerrisk (man-pages) wrote: >=20 >> I think the only reasonable solution is to better document existing >> behavior and what the programmer should do. With that in mind, I've >> drafted the following text for the msync(2) man page: >> >> NOTES >> According to POSIX, exactly one of MS_SYNC and MS_ASYNC must = be >> specified in flags. However, Linux permits a call to msync= () >> that specifies neither of these flags, with semantics that a= re >> (currently) equivalent to specifying MS_ASYNC. (Since Lin= ux >> 2.6.19, MS_ASYNC is in fact a no-op, since the kernel proper= ly >> tracks dirty pages and flushes them to storage as necessary= .) >> Notwithstanding the Linux behavior, portable, future-proof appl= i=E2=80=90 >> cations should ensure that they specify exactly one of MS_SY= NC >> and MS_ASYNC in flags. >=20 > Nit: MS_SYNC or MS_ASYNC Thanks. Reworded. Cheers, Michael --=20 Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org