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Date: Wed, 21 May 2008 01:56:57 +0100 From: Al Viro <viro@...IV.linux.org.uk> To: Harvey Harrison <harvey.harrison@...il.com> Cc: Al Viro <viro@....linux.org.uk>, mchehab@...radead.org, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, David Miller <davem@...emloft.net> Subject: Re: [PATCH] or51132.c: unaligned On Tue, May 20, 2008 at 05:51:28PM -0700, Harvey Harrison wrote: > > ... and the point of that would be? FWIW, I really don't like the ...p() > > forms - they are hard to distinguish from normal ones visually and any > > possible performance benefit is too small for most of the uses. IOW, > > it's mostly redundant API. > > I sent a patchset getting rid of the p variants earlier today, Dave > Miller made a good point that some arches have well optimized versions > of these as they have specific machine instructions they can use. Thus the "mostly" part - on hot paths the microoptimization is worth the trouble. None of the places in question is on such paths... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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