Re: [PATCH 1/2] HAVE_SET_RESTORE_SIGMASK
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- To: Russell King <rmk+lkml@xxxxxxxxxxxxxxxx>
- Subject: Re: [PATCH 1/2] HAVE_SET_RESTORE_SIGMASK
- From: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
- Date: Fri, 11 Apr 2008 14:40:34 +0100
- Cc: Roland McGrath <roland@xxxxxxxxxx>, "Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>Andrew Morton" <akpm@xxxxxxxxxxxxxxxxxxxx>, Martin Schwidefsky <schwidefsky@xxxxxxxxxx>, linux-s390@xxxxxxxxxxxxxxx, tony.luck@xxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, miles@xxxxxxx, geert@xxxxxxxxxxxxxx, zippel@xxxxxxxxxxxxxx
- In-reply-to: <20080410203250.GA21589@xxxxxxxxxxxxxxxxxxxxxx>
- List-id: <linux-ia64.vger.kernel.org>
- References: <20080329001230.D013726FA1D@xxxxxxxxxxxxxxxxxxx> <20080329001341.7F93826FA1D@xxxxxxxxxxxxxxxxxxx> <alpine.LFD.1.00.0803281746480.14670@xxxxxxxxxxxxxxxxxxxxxxxxxx> <20080329022408.0DD4726FA1D@xxxxxxxxxxxxxxxxxxx> <20080329031146.6FF7126FA1D@xxxxxxxxxxxxxxxxxxx> <1207741532.27048.64.camel@xxxxxxxxxxxxxxxxxxxxxxx> <20080410203250.GA21589@xxxxxxxxxxxxxxxxxxxxxx>
On Thu, 2008-04-10 at 21:32 +0100, Russell King wrote:
> On Wed, Apr 09, 2008 at 12:45:32PM +0100, David Woodhouse wrote:
> > On Fri, 2008-03-28 at 20:11 -0700, Roland McGrath wrote:
> > > Change all the #ifdef TIF_RESTORE_SIGMASK conditionals in non-arch
> > > code to #ifdef HAVE_SET_RESTORE_SIGMASK.
> >
> > That ifdef was only supposed to be a temporary thing until all
> > architectures had implemented TIF_RESTORE_SIGMASK anyway.
> >
> > It looks like only ARM, v850 and m68k which are still missing it; if
> > those three architectures can catch up, then hopefully it can die off
> > completely quite soon.
>
> Well, we don't have the pselect/ppoll/epoll_wait syscalls and there's
> been no demand for them, so I don't particularly see the point of
> going to the trouble of adding support for something no one's
> interested in using.
You're not likely to see demand for it from users. I believe glibc will
emulate it as best it can (which is not very well), and things will
appear to work.... most of the time.
--
dwmw2
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