All of lore.kernel.org
 help / color / mirror / Atom feed
From: Daniel Borkmann <daniel-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
To: Alexei Starovoitov <ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH man] ebpf.2: various updates to address some fixmes
Date: Tue, 28 Jul 2015 19:35:42 +0200	[thread overview]
Message-ID: <55B7BD6E.4080205@iogearbox.net> (raw)
In-Reply-To: <55B7BB08.9070608-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>

On 07/28/2015 07:25 PM, Alexei Starovoitov wrote:
> On 7/28/15 8:29 AM, Daniel Borkmann wrote:
>> +.BR __sync_fetch_and_add()
>> +can be used on map values in case the map has a value_size of sizeof(long).
>> +This is quite often useful for aggregation and accounting of events.
>
> The above is a bit not clear, since both u32 and u64 can be used
> as atomic counters.

Right, it's unclear indeed. Perhaps the sizeof(long) should be dropped and
it should say instead "the map has a value_size of 4 or 8 bytes".

Thanks,
Daniel
--
To unsubscribe from this list: send the line "unsubscribe linux-man" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

  parent reply	other threads:[~2015-07-28 17:35 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-28 15:29 [PATCH man] ebpf.2: various updates to address some fixmes Daniel Borkmann
     [not found] ` <a8aa1bd1ddb4cd90a26887f2ce68d79c1e1e4c1f.1438097188.git.daniel-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2015-07-28 17:25   ` Alexei Starovoitov
     [not found]     ` <55B7BB08.9070608-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-07-28 17:35       ` Daniel Borkmann [this message]
     [not found]         ` <55B7BD6E.4080205-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2015-07-28 18:01           ` Alexei Starovoitov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=55B7BD6E.4080205@iogearbox.net \
    --to=daniel-fec+5ew28dpmcu3hniyyjq@public.gmane.org \
    --cc=ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org \
    --cc=linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.