linux-kernel - Re: [PATCH 21/21] posix_types: Remove fd

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Message-ID: <16325.1328736262@redhat.com>
Date:	Wed, 08 Feb 2012 21:24:22 +0000
From:	David Howells <dhowells@...hat.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	dhowells@...hat.com, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 21/21] posix_types: Remove fd_set macros

H. Peter Anvin <hpa@...or.com> wrote:

> Anyway, select() paraphernalia goes in <sys/time.h> (as opposed to
> <time.h>), poll() paraphernalia goes in <sys/poll.h>, and the linux/*
> files mimics that.

That doesn't seem to be so - at least not for my copy of glibc:

/usr/include/sys/select.h:/* fd_set for select and pselect.  */
/usr/include/sys/select.h:  } fd_set;
/usr/include/sys/select.h:#define       FD_ISSET(fd, fdsetp)    __FD_ISSET (fd, fdsetp)

Besides, this is inside the kernel.  The I/O polling architecture definitions
(which includes select) ought to be in one place there, not spread out all
over the place.

David
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