From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 1/8] xfs: check for buffer errors before waiting
Date: Fri, 30 Mar 2012 08:17:41 +1100 [thread overview]
Message-ID: <20120329211741.GE692@dastard> (raw)
In-Reply-To: <20120329191203.GB8622@infradead.org>
On Thu, Mar 29, 2012 at 03:12:03PM -0400, Christoph Hellwig wrote:
> The actual fix looks good:
>
>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
>
> But shou;dn't we move the setting of b_error to zero into common buffer
> code instead of adding it to the callers?
We generally do - in xfs_buf_iodone_callbacks() - which covers
pretty much all cached buffer IO.
However, for uncached buffers, it is only zeroed in xfs_buf_alloc().
For single use buffers, this is fine, but for multiple use buffers
like the log uses during recovery for log IO, it doesn't get reset
anywhere because the buffer doesn't go anywhere near common buffer
code between IOs.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
next prev parent reply other threads:[~2012-03-29 21:17 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-29 12:23 [PATCH 0/8] xfs: clean up unit usage in xfs_buf V2 Dave Chinner
2012-03-29 12:23 ` [PATCH 1/8] xfs: check for buffer errors before waiting Dave Chinner
2012-03-29 19:04 ` Mark Tinguely
2012-03-29 21:10 ` Dave Chinner
2012-03-29 21:48 ` Mark Tinguely
2012-03-29 22:07 ` Dave Chinner
2012-03-29 19:12 ` Christoph Hellwig
2012-03-29 21:17 ` Dave Chinner [this message]
2012-03-29 12:23 ` [PATCH 2/8] xfs: fix incorrect b_offset initialisation Dave Chinner
2012-03-29 19:13 ` Christoph Hellwig
2012-03-29 20:43 ` Mark Tinguely
2012-03-29 12:23 ` [PATCH 3/8] xfs: use kmem_zone_zalloc for buffers Dave Chinner
2012-03-29 19:14 ` Christoph Hellwig
2012-03-29 20:45 ` Mark Tinguely
2012-03-29 12:23 ` [PATCH 4/8] xfs: clean up buffer get/read call API Dave Chinner
2012-03-30 19:12 ` Mark Tinguely
2012-03-29 12:23 ` [PATCH 5/8] xfs: kill b_file_offset Dave Chinner
2012-03-30 19:12 ` Mark Tinguely
2012-03-29 12:23 ` [PATCH 6/8] xfs: use blocks for counting length of buffers Dave Chinner
2012-03-29 19:16 ` Christoph Hellwig
2012-03-30 19:13 ` Mark Tinguely
2012-03-29 12:23 ` [PATCH 7/8] xfs: use blocks for storing the desired IO size Dave Chinner
2012-03-30 19:13 ` Mark Tinguely
2012-03-29 12:23 ` [PATCH 8/8] xfs: kill xfs_buf_btoc Dave Chinner
2012-03-29 19:18 ` Christoph Hellwig
2012-03-30 19:13 ` Mark Tinguely
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=20120329211741.GE692@dastard \
--to=david@fromorbit.com \
--cc=hch@infradead.org \
--cc=xfs@oss.sgi.com \
/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