linux-kernel - Re: [PATCH v2] compat: Fix RT signal mask corruption via sigprocmask

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Message-ID: <CA+55aFyr4_3MN4yZdNMnDr+nKm+VTONiP6SQnAGXoaQ1egr7zQ@mail.gmail.com>
Date:	Thu, 10 May 2012 08:58:21 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jan Kiszka <jan.kiszka@...mens.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michael Tokarev <mjt@....msk.ru>,
	Anthony Liguori <aliguori@...ibm.com>,
	Kevin Wolf <kwolf@...hat.com>
Subject: Re: [PATCH v2] compat: Fix RT signal mask corruption via sigprocmask

On Thu, May 10, 2012 at 8:44 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> I think I'll just edit your patch directly, no need to send me a new version.

Ok, just FYI, this is the incremental diff I ended up with. I'll
commit it as this, but I'm sending it out for people to verify before
I do. Although just from looking at the code generation, it really
does just change those four instructions that do a mask to a single
'movl', so I think it's pretty safe even though I haven't tested it.

                       Linus

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