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Re: [PATCH] clean up PPC for private futex changes.

From: Jakub Jelinek <jakub at redhat dot com>
To: Steven Munroe <munroesj at us dot ibm dot com>
Cc: Ulrich Drepper <drepper at redhat dot com>, GNU libc hacker <libc-hacker at sources dot redhat dot com>
Date: Tue, 24 Jul 2007 09:15:38 +0200
Subject: Re: [PATCH] clean up PPC for private futex changes.
References: <4697E92C.1010403@us.ibm.com> <46A4D2F3.7060005@redhat.com> <20070723204237.GE4603@sunsite.mff.cuni.cz> <46A52700.50905@us.ibm.com>
Reply-to: Jakub Jelinek <jakub at redhat dot com>

On Mon, Jul 23, 2007 at 05:09:04PM -0500, Steven Munroe wrote:
> But how can header.private_futex be set in the absence of  
> __ASSUME_PRIVATE_FUTEX?

header.private_futex is only ever present when
!defined __ASSUME_PRIVATE_FUTEX
and contains either 0 (when private futexes are not supported)
or FUTEX_PRIVATE_FLAG (== 128, when private futexes are supported).
This is not needed when __ASSUME_PRIVATE_FUTEX is defined - we
assume private futexes are supported and thus header.private_futex
would be always 128.

	Jakub

References:
- [PATCH] clean up PPC for private futex changes.
  - From: Steven Munroe
- Re: [PATCH] clean up PPC for private futex changes.
  - From: Ulrich Drepper
- Re: [PATCH] clean up PPC for private futex changes.
  - From: Jakub Jelinek
- Re: [PATCH] clean up PPC for private futex changes.
  - From: Steven Munroe

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