From: David Miller <davem@davemloft.net>
To: eranian@hpl.hp.com
Cc: paulus@samba.org, hch@infradead.org, akpm@linux-foundation.org,
gregkh@suse.de, mucci@cs.utk.edu, wcohen@redhat.com,
robert.richter@amd.com, linux-kernel@vger.kernel.org,
andi@firstfloor.org
Subject: Re: [perfmon] Re: [perfmon2] perfmon2 merge news
Date: Mon, 19 Nov 2007 16:53:13 -0800 (PST) [thread overview]
Message-ID: <20071119.165313.163834190.davem@davemloft.net> (raw)
In-Reply-To: <20071119224845.GA27766@frankl.hpl.hp.com>
From: Stephane Eranian <eranian@hpl.hp.com>
Date: Mon, 19 Nov 2007 14:48:46 -0800
> Looks like we will have to use bytes (u8) instead. This may have some
> performance impact as well. Several bitmaps are used in the context/interrupt
> routines. Even with u8, there is still a problem with the bitmap*() macros.
> Now, only a small subset of the bitmap() macros are used, so it may be okay
> to duplicate them for u8.
I think it would be fine to just create a set of bitop interfaces that
operate on u32 objects instead of "unsigned long".
Currently perfmon2 does not need the atomic variants at all, and those
could thus be provided entirely under include/asm-generic/bitops/
next prev parent reply other threads:[~2007-11-20 0:53 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-07 0:34 [PATCH] fix up perfmon to build on -mm Greg KH
2007-11-07 10:34 ` Stephane Eranian
2007-11-07 17:07 ` Greg KH
2007-11-07 13:42 ` Stephane Eranian
2007-11-07 17:08 ` Greg KH
2007-11-07 17:33 ` Andrew Morton
2007-11-07 17:41 ` Greg KH
2007-11-07 17:50 ` Stephane Eranian
2007-11-07 17:47 ` Greg KH
2007-11-07 17:57 ` Stephane Eranian
2007-11-07 19:53 ` Greg KH
2007-11-07 20:39 ` Stephane Eranian
2007-11-08 15:27 ` Stephane Eranian
2007-11-09 20:06 ` Andrew Morton
2007-11-09 21:38 ` Greg KH
2007-11-10 20:32 ` Andi Kleen
2007-11-13 15:17 ` perfmon2 merge news Robert Richter
2007-11-13 15:35 ` [perfmon2] " William Cohen
2007-11-13 17:55 ` Stephane Eranian
2007-11-13 18:33 ` [perfmon] " William Cohen
2007-11-13 21:13 ` Stephane Eranian
2007-11-13 21:29 ` Andi Kleen
2007-11-13 21:46 ` Stephane Eranian
2007-11-13 21:50 ` Andi Kleen
2007-11-13 22:22 ` Stephane Eranian
2007-11-13 22:25 ` Andi Kleen
2007-11-13 22:58 ` Stephane Eranian
2007-11-14 2:07 ` Andi Kleen
2007-11-14 13:09 ` Stephane Eranian
2007-11-14 14:24 ` Andi Kleen
2007-11-14 15:44 ` William Cohen
2007-11-14 16:13 ` Stephane Eranian
2007-11-14 18:53 ` Philippe Elie
2007-11-14 19:15 ` Andi Kleen
2007-11-15 0:07 ` Stephane Eranian
2007-11-13 18:47 ` Philip Mucci
2007-11-13 18:59 ` Greg KH
2007-11-13 20:07 ` Andrew Morton
2007-11-13 20:14 ` Greg KH
2007-11-13 20:36 ` Andi Kleen
2007-11-14 0:28 ` Philip Mucci
2007-11-14 1:52 ` Andi Kleen
2007-11-16 9:18 ` Philip Mucci
2007-11-16 15:15 ` Andi Kleen
2007-11-16 16:00 ` Stephane Eranian
2007-11-16 16:28 ` Andi Kleen
2007-11-16 17:13 ` William Cohen
2007-11-16 21:56 ` Stephane Eranian
2007-11-16 17:36 ` Stephane Eranian
2007-11-16 17:51 ` dean gaudet
2007-11-17 0:29 ` David Miller
2007-11-17 1:07 ` Greg KH
2007-11-16 20:16 ` Philip Mucci
2007-11-17 0:15 ` David Miller
[not found] ` <1d7226b10711161713j675341b7wdb4f050c59a8be0a@mail.gmail.com>
2007-11-17 1:25 ` Greg KH
[not found] ` <1d7226b10711161748n39b7f195q796d85282ef66134@mail.gmail.com>
2007-11-17 2:13 ` Greg KH
2007-11-14 7:24 ` [perfmon] Re: [perfmon2] " Paul Mackerras
2007-11-14 7:40 ` Andrew Morton
2007-11-14 10:38 ` Christoph Hellwig
2007-11-14 10:43 ` Paul Mackerras
2007-11-14 11:00 ` Christoph Hellwig
2007-11-14 11:12 ` David Miller
2007-11-14 11:14 ` David Miller
2007-11-14 11:44 ` Paul Mackerras
2007-11-13 23:49 ` Nick Piggin
2007-11-14 11:58 ` David Miller
2007-11-14 0:25 ` Nick Piggin
2007-11-14 21:30 ` Paul Mackerras
2007-11-14 10:17 ` Nick Piggin
2007-11-14 22:56 ` Chuck Ebbert
2007-11-14 11:03 ` Nick Piggin
2007-11-14 11:52 ` David Miller
2007-11-14 12:03 ` Paul Mackerras
2007-11-14 12:07 ` David Miller
2007-11-14 0:28 ` Nick Piggin
2007-11-14 21:50 ` Paul Mackerras
2007-11-14 23:03 ` David Miller
2007-11-14 23:12 ` Paul Mackerras
2007-11-14 23:21 ` David Miller
2007-11-15 1:11 ` Paul Mackerras
2007-11-15 1:27 ` David Miller
2007-11-15 2:34 ` Paul Mackerras
2007-11-15 7:48 ` Herbert Xu
2007-11-15 8:19 ` Andi Kleen
2007-11-19 13:08 ` David Miller
2007-11-19 20:53 ` Stephane Eranian
2007-11-20 0:55 ` David Miller
2007-11-19 21:43 ` Paul Mackerras
2007-11-19 22:48 ` Stephane Eranian
2007-11-20 0:53 ` David Miller [this message]
2007-12-13 16:00 ` Stephane Eranian
2007-12-14 19:12 ` Frank Ch. Eigler
2007-12-14 21:07 ` Stephane Eranian
2007-12-15 15:54 ` Frank Ch. Eigler
2007-11-15 8:29 ` [perfmon] " Stephane Eranian
2007-11-14 13:51 ` Stephane Eranian
2007-11-14 11:39 ` Paul Mackerras
2007-11-14 11:52 ` David Miller
2007-11-14 13:47 ` Stephane Eranian
2007-11-14 12:38 ` Andi Kleen
2007-11-14 14:13 ` Stephane Eranian
2007-11-14 14:26 ` Andi Kleen
2007-11-15 0:23 ` Paul Mackerras
2007-11-14 19:48 ` David Miller
2007-11-15 4:20 ` dean gaudet
2007-11-15 4:47 ` Paul Mackerras
2007-11-15 5:14 ` dean gaudet
2007-11-15 8:53 ` Stephane Eranian
2007-11-15 17:01 ` [perfmon2] [perfmon] " Dan Terpstra
2007-11-13 21:33 ` [perfmon] Re: [perfmon2] " Stephane Eranian
2007-11-13 21:45 ` Greg KH
2007-11-13 22:27 ` Christoph Hellwig
2007-11-13 20:42 ` Andi Kleen
2007-11-13 18:32 ` Stephane Eranian
2007-11-13 22:29 ` Christoph Hellwig
2007-11-16 18:25 ` PMC core internal API design Mathieu Desnoyers
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