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Re: [Qemu-devel] [PATCH 02/10] migration: Add counters of updating the d
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH 02/10] migration: Add counters of updating the dirty bitmap |
Date: |
Tue, 11 Mar 2014 07:09:06 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
On 03/11/2014 06:53 AM, address@hidden wrote:
> From: ChenLiang <address@hidden>
>
> Add counters to log the times of updating the dirty bitmap.
>
> Signed-off-by: ChenLiang <address@hidden>
> Signed-off-by: Gonglei <address@hidden>
> Reviewed-by: Dr. David Alan Gilbert <address@hidden>
> Reviewed-by: Eric Blake <address@hidden>
Wait - how did my Reviewed-by get here? There is no [PATCHv2] in the
subject line to indicate that I reviewed an earlier revision. and the
only other mail I see from me in the archives with the same subject line
is here:
https://lists.gnu.org/archive/html/qemu-devel/2014-02/msg05143.html
where I made a comment, but did NOT give my signature on the patch.
Please follow http://wiki.qemu.org/Contribute/SubmitAPatch when using
Reviewed-by: tags and subject lines. Otherwise, you are making life
harder for yourself and for reviewers.
> ---
> arch_init.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/arch_init.c b/arch_init.c
> index 2ac68c2..37e4aa5 100644
> --- a/arch_init.c
> +++ b/arch_init.c
> @@ -110,6 +110,23 @@ static bool mig_throttle_on;
> static int dirty_rate_high_cnt;
> static void check_guest_throttling(void);
>
> +static uint64_t bitmap_sync_cnt;
> +/* the functions *_bitmap_sync_cnt only run in migrate thread */
> +static inline void reset_bitmap_sync_cnt(void)
Isn't static inline a bit much in a .c file? You generally want inline
functions to appear in .h. For this particular file, I think these
functions are overkill...
>
> + increase_bitmap_sync_cnt();
and that you could just directly write 'bitmap_sync_cnt++' here.
When you send v3, do NOT add my Reviewed-by yet, because I still want to
make sure that the new version is correct.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- Re: [Qemu-devel] [PATCH 09/10] migration: expose the bitmap_sync_cnt to the end user, (continued)