From: Alex Elder <aelder@sgi.com>
To: Dave Chinner <david@fromorbit.com>
Cc: XFS Mailing List <xfs@oss.sgi.com>
Subject: Re: [PATCH 3/5] xfs: fix xfs_trans_add_item() lockdep warnings
Date: Thu, 15 Jul 2010 13:09:01 -0500 [thread overview]
Message-ID: <1279217341.2054.33.camel@doink> (raw)
In-Reply-To: <1279154300-2018-4-git-send-email-david@fromorbit.com>
On Thu, 2010-07-15 at 10:38 +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> xfs_trans_add_item() is called with ip->i_ilock held, which means it
> is unsafe for memory reclaim to recurse back into the filesystem
> (ilock is required in writeback). Hence the allocation needs to be
> KM_NOFS to avoid recursion.
Looks good.
Reviewed-by: Alex Elder <aelder@sgi.com>
> Lockdep report indicating memory allocation being called with the
> ip->i_ilock held is as follows:
. . .
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
next prev parent reply other threads:[~2010-07-15 18:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-15 0:38 [PATCH 0/5] xfs: reclaim bug fixes Dave Chinner
2010-07-15 0:38 ` [PATCH 1/5] xfs: track AGs with reclaimable inodes in per-ag radix tree Dave Chinner
2010-07-15 18:01 ` Alex Elder
2010-07-16 5:17 ` Christoph Hellwig
2010-07-19 0:17 ` Dave Chinner
2010-07-19 0:24 ` Dave Chinner
2010-07-15 0:38 ` [PATCH 2/5] xfs: simplify and remove xfs_ireclaim Dave Chinner
2010-07-15 18:07 ` Alex Elder
2010-07-16 5:16 ` Christoph Hellwig
2010-07-15 0:38 ` [PATCH 3/5] xfs: fix xfs_trans_add_item() lockdep warnings Dave Chinner
2010-07-15 18:09 ` Alex Elder [this message]
2010-07-16 5:19 ` Christoph Hellwig
2010-07-19 0:24 ` Dave Chinner
2010-07-15 0:38 ` [PATCH 4/5] xfs: use GFP_NOFS for page cache allocation Dave Chinner
2010-07-15 18:10 ` Alex Elder
2010-07-16 5:21 ` Christoph Hellwig
2010-07-15 0:38 ` [PATCH 5/5] xfs: fix memory reclaim recursion deadlock on locked inode buffer Dave Chinner
2010-07-15 18:42 ` Alex Elder
2010-07-16 5:22 ` Christoph Hellwig
2010-07-16 5:23 ` [PATCH 0/5] xfs: reclaim bug fixes Christoph Hellwig
2010-07-19 0:30 ` Dave Chinner
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=1279217341.2054.33.camel@doink \
--to=aelder@sgi.com \
--cc=david@fromorbit.com \
--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