linux-kernel - Re: [PATCH 2/2] x86 TS_RESTORE

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Message-ID: <20080331130106.GA15198@elte.hu>
Date:	Mon, 31 Mar 2008 15:01:06 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Roland McGrath <roland@...hat.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-s390@...r.kernel.org, tony.luck@...el.com,
	linux-ia64@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] x86 TS_RESTORE_SIGMASK


* Roland McGrath <roland@...hat.com> wrote:

> Replace TIF_RESTORE_SIGMASK with TS_RESTORE_SIGMASK and define our own 
> set_restore_sigmask() function.  This saves the costly SMP-safe 
> set_bit operation, which we do not need for the sigmask flag since 
> TIF_SIGPENDING always has to be set too.
> 
> Signed-off-by: Roland McGrath <roland@...hat.com>
> ---
>  arch/x86/ia32/ia32_signal.c      |    2 +-
>  arch/x86/kernel/signal_32.c      |   19 ++++++++++---------
>  arch/x86/kernel/signal_64.c      |   16 +++++++++-------
>  include/asm-x86/thread_info_32.h |   13 +++++++++++--
>  include/asm-x86/thread_info_64.h |   13 +++++++++++--
>  5 files changed, 42 insertions(+), 21 deletions(-)

the x86 bits look nice - but i guess this all wants to go into 2.6.26 
via -mm (or linux-next), due to its cross-arch nature?

	Ingo
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