linux-kernel - Re: [PATCH 0/6] x86: Merge pt

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Date:	Wed, 09 Dec 2009 16:47:29 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Brian Gerst <brgerst@...il.com>
CC:	Ingo Molnar <mingo@...e.hu>, x86@...nel.org,
	torvalds@...ux-foundation.org, jeremy@...p.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] x86: Merge pt_regs using syscalls

On 12/09/2009 04:01 PM, Brian Gerst wrote:
> This patch set converts the 32-bit syscalls that need pt_regs to
> match the same prototype as 64-bit, using regparm(3) and adding 
> the pt_regs pointer as an extra argument.  This allows these
> syscalls to be merged.
> 
> [PATCH 1/6] x86, 32-bit: Add new pt_regs stubs
> [PATCH 2/6] x86: Merge sys_iopl
> [PATCH 3/6] x86: Merge sys_execve
> [PATCH 4/6] x86: Merge sys_sigaltstack
> [PATCH 5/6] x86, 32-bit: Convert sys_vm86 & sys_vm86old
> [PATCH 6/6] x86: Merge sys_clone

I have applied this series to tip:x86/asm with the addition of avoiding
the extra pipeline serialization; assuming it doesn't break anything we
can consider if we can push it for .33.  I really like the series,
though; it is very clean and does the right thing.

	-hpa
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