From: Eric Blake <eblake@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kwolf@redhat.com, jcody@redhat.com, qemu-devel@nongnu.org,
stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 01/20] host-utils: add ffsl
Date: Wed, 12 Dec 2012 16:41:51 -0700 [thread overview]
Message-ID: <50C9163F.30505@redhat.com> (raw)
In-Reply-To: <1355319999-30627-2-git-send-email-pbonzini@redhat.com>
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On 12/12/2012 06:46 AM, Paolo Bonzini wrote:
> We can provide fast versions based on the other functions defined
> by host-utils.h. Some care is required on glibc, which provides
> ffsl already.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> host-utils.h | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
Reviewed-by: Eric Blake <eblake@redhat.com>
>
> diff --git a/host-utils.h b/host-utils.h
> index 821db93..231d580 100644
> --- a/host-utils.h
> +++ b/host-utils.h
> @@ -24,6 +24,7 @@
> */
>
> #include "compiler.h" /* QEMU_GNUC_PREREQ */
> +#include <string.h> /* ffsl */
I never really understood why ffs() is in <strings.h> but ffsl() is in
<string.h>, especially when neither function deals with strings (a
<bitops.h> header would have made more sense), but such is life.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2012-12-12 23:41 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-12 13:46 [Qemu-devel] [PATCH 00/20] Block device mirroring enhancements, 12-12-12 edition Paolo Bonzini
2012-12-12 13:46 ` [Qemu-devel] [PATCH 01/20] host-utils: add ffsl Paolo Bonzini
2012-12-12 23:41 ` Eric Blake [this message]
2012-12-12 13:46 ` [Qemu-devel] [PATCH 02/20] add hierarchical bitmap data type and test cases Paolo Bonzini
2012-12-14 0:04 ` Eric Blake
2013-01-11 18:27 ` Stefan Hajnoczi
2012-12-12 13:46 ` [Qemu-devel] [PATCH 03/20] block: implement dirty bitmap using HBitmap Paolo Bonzini
2012-12-14 0:27 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 04/20] block: make round_to_clusters public Paolo Bonzini
2012-12-14 20:13 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 05/20] mirror: perform COW if the cluster size is bigger than the granularity Paolo Bonzini
2012-12-14 20:21 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 06/20] block: return count of dirty sectors, not chunks Paolo Bonzini
2012-12-14 20:49 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 07/20] block: allow customizing the granularity of the dirty bitmap Paolo Bonzini
2012-12-14 21:27 ` Eric Blake
2012-12-15 9:11 ` Paolo Bonzini
2012-12-12 13:46 ` [Qemu-devel] [PATCH 08/20] mirror: allow customizing the granularity Paolo Bonzini
2012-12-14 22:01 ` Eric Blake
2013-01-14 11:28 ` Stefan Hajnoczi
2012-12-12 13:46 ` [Qemu-devel] [PATCH 09/20] mirror: switch mirror_iteration to AIO Paolo Bonzini
2012-12-14 22:11 ` Eric Blake
2012-12-15 9:09 ` Paolo Bonzini
2012-12-15 13:05 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 10/20] mirror: add buf-size argument to drive-mirror Paolo Bonzini
2012-12-14 22:22 ` Eric Blake
2012-12-15 9:09 ` Paolo Bonzini
2013-01-14 11:41 ` Stefan Hajnoczi
2012-12-12 13:46 ` [Qemu-devel] [PATCH 11/20] mirror: support more than one in-flight AIO operation Paolo Bonzini
2012-12-14 22:32 ` Eric Blake
2013-01-14 12:56 ` Stefan Hajnoczi
2013-01-14 13:28 ` Paolo Bonzini
2012-12-12 13:46 ` [Qemu-devel] [PATCH 12/20] mirror: support arbitrarily-sized iterations Paolo Bonzini
2012-12-14 22:39 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 13/20] oslib: add a wrapper for mmap/munmap Paolo Bonzini
2012-12-14 22:54 ` Eric Blake
2012-12-15 9:06 ` Paolo Bonzini
2012-12-12 13:46 ` [Qemu-devel] [PATCH 14/20] hbitmap: add hbitmap_alloc_with_data and hbitmap_required_size Paolo Bonzini
2012-12-17 17:14 ` Eric Blake
2012-12-17 17:18 ` Paolo Bonzini
2012-12-12 13:46 ` [Qemu-devel] [PATCH 15/20] hbitmap: add hbitmap_copy Paolo Bonzini
2012-12-17 18:25 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 16/20] block: split bdrv_enable_dirty_tracking and bdrv_disable_dirty_tracking Paolo Bonzini
2012-12-20 18:26 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 17/20] block: support a persistent dirty bitmap Paolo Bonzini
2012-12-20 23:03 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 18/20] mirror: add support for " Paolo Bonzini
2012-12-20 23:49 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 19/20] block: choose the default dirty bitmap granularity in bdrv_enable_dirty_tracking Paolo Bonzini
2012-12-20 23:53 ` Eric Blake
2012-12-12 13:46 ` [Qemu-devel] [PATCH 20/20] monitor: add commands to start/stop dirty bitmap Paolo Bonzini
2012-12-21 18:30 ` Eric Blake
2013-01-14 13:02 ` [Qemu-devel] [PATCH 00/20] Block device mirroring enhancements, 12-12-12 edition Stefan Hajnoczi
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