All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Dan Smith <danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org
Subject: Re: [PATCH 3/4] Update the UNIX buffer restore code to match the new format saved in the image file
Date: Wed, 11 Nov 2009 15:38:51 -0600	[thread overview]
Message-ID: <20091111213851.GE8761@us.ibm.com> (raw)
In-Reply-To: <1257878856-25520-4-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>

Quoting Dan Smith (danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org):
>  	/* Make sure there's room in the send buffer */
>  	sndbuf = sk->sk_sndbuf;
> -	if (((sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc)) < len) &&
> +	if (((sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc)) < h->lin_len) &&
>  	    capable(CAP_NET_ADMIN))
> -		sk->sk_sndbuf += len;
> +		sk->sk_sndbuf += h->lin_len;
>  	else
>  		sk->sk_sndbuf = sysctl_wmem_max;

Can you explain what's going on here?  'if the size of the send buffer
minus tranmit queue bytes committed is less than linear length,
then if you're privileged you add h->len to sk->sk_sndbuf, but if
either you're not privileged or the length was greater than linear
length, then you add sysctl_wmem_max.'  ?

I realize that's a question on the original code, not on this
patch...

-serge

  parent reply	other threads:[~2009-11-11 21:38 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-10 18:47 Add support for connected INET sockets Dan Smith
2009-11-10 18:47 ` [PATCH 2/4] [RFC] Add c/r support for connected INET sockets (v4) Dan Smith
2009-11-11 20:32   ` Serge E. Hallyn
     [not found] ` <1257878856-25520-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-10 18:47   ` [PATCH 1/4] Unify skb read/write functions and fix for fragmented buffers Dan Smith
     [not found]     ` <1257878856-25520-2-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-11 20:02       ` Serge E. Hallyn
2009-11-16 18:30       ` Oren Laadan
     [not found]         ` <4B019A2C.9090507-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-11-16 18:51           ` Dan Smith
     [not found]             ` <87einyuwum.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-11-16 19:05               ` Oren Laadan
2009-11-10 18:47   ` [PATCH 3/4] Update the UNIX buffer restore code to match the new format saved in the image file Dan Smith
     [not found]     ` <1257878856-25520-4-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-11 21:38       ` Serge E. Hallyn [this message]
     [not found]         ` <20091111213851.GE8761-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-11 21:57           ` Dan Smith
     [not found]             ` <87vdhgvi6b.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-11-12  2:18               ` Serge E. Hallyn
     [not found]                 ` <20091112021824.GA14646-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-12 18:19                   ` Dan Smith
     [not found]                     ` <87k4xvvc5b.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-11-12 19:43                       ` Serge E. Hallyn
2009-11-16 18:35                   ` Oren Laadan
2009-11-11 21:40       ` Serge E. Hallyn
2009-11-10 18:47   ` [PATCH 4/4] Add some content to the readme.txt for socket c/r Dan Smith
2009-11-16 18:38   ` Add support for connected INET sockets Oren Laadan
  -- strict thread matches above, loose matches on Subject: below --
2009-11-17 15:26 Dan Smith
     [not found] ` <1258471590-29768-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-17 15:26   ` [PATCH 3/4] Update the UNIX buffer restore code to match the new format saved in the image file Dan Smith
     [not found]     ` <1258471590-29768-4-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-18  4:39       ` Serge E. Hallyn
     [not found]         ` <20091118043920.GD19841-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-11-18 14:28           ` Dan Smith
     [not found]             ` <876397vrf1.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-11-18 15:16               ` Serge E. Hallyn

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=20091111213851.GE8761@us.ibm.com \
    --to=serue-r/jw6+rmf7hqt0dzr+alfa@public.gmane.org \
    --cc=containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org \
    --cc=danms-r/Jw6+rmf7HQT0dZR+AlfA@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.