linux-next.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-next-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] RDMA/cxgb4: Add default_llseek to debugfs files.
Date: Wed, 29 Sep 2010 12:27:49 -0500	[thread overview]
Message-ID: <4CA37715.4020302@opengridcomputing.com> (raw)
In-Reply-To: <adawrq431sr.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>

On 09/29/2010 12:19 PM, Roland Dreier wrote:
>   >  @@ -182,6 +182,7 @@ static const struct file_operations qp_debugfs_fops = {
>   >   	.open    = qp_open,
>   >   	.release = qp_release,
>   >   	.read    = debugfs_read,
>   >  +	.llseek  = default_llseek,
>   >   };
>
> I think this could actually be generic_file_llseek (right, Arnd?).
>
> Also could qp_read() and other read methods be simplified by using
> simple_read_from_buffer()?  I don't see anything fancy there, seems like
> the read methods could become one-liners that way.
>
>    

I assume you mean debugs_read()...Like this?

static ssize_t debugfs_read(struct file *file, char __user *buf, size_t 
count,
                             loff_t *ppos)
{
         struct c4iw_debugfs_data *d = file->private_data;

         return simple_read_from_buffer(buf, ppos, d->buf, d->pos);
}


Steve.
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" 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:[~2010-09-29 17:27 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-29 14:11 [PATCH] RDMA/cxgb4: Add default_llseek to debugfs files Steve Wise
     [not found] ` <20100929141112.26944.21931.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
2010-09-29 17:19   ` Roland Dreier
     [not found]     ` <adawrq431sr.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2010-09-29 17:27       ` Steve Wise [this message]
2010-09-29 17:41         ` Roland Dreier
2010-09-29 17:49           ` Steve Wise
2010-09-29 17:50             ` Roland Dreier
2010-09-29 19:17       ` Arnd Bergmann
     [not found]         ` <201009292117.54828.arnd-r2nGTMty4D4@public.gmane.org>
2010-09-29 19:21           ` Roland Dreier
2010-09-29 19:29             ` Arnd Bergmann
2010-09-29 19:40               ` Roland Dreier
2010-09-29 18:52   ` Roland Dreier

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=4CA37715.4020302@opengridcomputing.com \
    --to=swise-7bpotxp6k4+p2yhjcf5u+vpxobypeauw@public.gmane.org \
    --cc=arnd-r2nGTMty4D4@public.gmane.org \
    --cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-next-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=rdreier-FYB4Gu1CFyUAvxtiuMwx3w@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).