From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 09/11] xfs: use xfs_ilock_attr_map_shared in xfs_attr_get
Date: Mon, 9 Dec 2013 09:39:02 +1100 [thread overview]
Message-ID: <20131208223902.GJ31386@dastard> (raw)
In-Reply-To: <20131206203129.330138179@bombadil.infradead.org>
On Fri, Dec 06, 2013 at 12:30:15PM -0800, Christoph Hellwig wrote:
> We might not have read in the extent list at this point, so make sure we
> take the ilock exclusively if we have to do so.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
>
> Index: xfs/fs/xfs/xfs_attr.c
> ===================================================================
> --- xfs.orig/fs/xfs/xfs_attr.c 2013-12-06 17:20:27.447331601 +0100
> +++ xfs/fs/xfs/xfs_attr.c 2013-12-06 19:41:05.119158446 +0100
> @@ -164,6 +164,7 @@ xfs_attr_get(
> {
> int error;
> struct xfs_name xname;
> + uint lock_mode;
>
> XFS_STATS_INC(xs_attr_get);
>
> @@ -174,9 +175,9 @@ xfs_attr_get(
> if (error)
> return error;
>
> - xfs_ilock(ip, XFS_ILOCK_SHARED);
> + lock_mode = xfs_ilock_attr_map_shared(ip);
> error = xfs_attr_get_int(ip, &xname, value, valuelenp, flags);
> - xfs_iunlock(ip, XFS_ILOCK_SHARED);
> + xfs_iunlock(ip, lock_mode);
> return(error);
> }
Yup, that should fix the assert problem. :)
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
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:[~2013-12-08 22:39 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-06 20:30 [PATCH 00/11] extent list locking fixes V3 Christoph Hellwig
2013-12-06 20:30 ` [PATCH 01/11] xfs: no need to lock the inode in xfs_find_handle Christoph Hellwig
2013-12-08 22:31 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 02/11] xfs: remove xfs_iunlock_map_shared Christoph Hellwig
2013-12-08 22:31 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 03/11] xfs: rename xfs_ilock_map_shared Christoph Hellwig
2013-12-08 22:33 ` Dave Chinner
2013-12-09 7:03 ` Christoph Hellwig
2013-12-09 7:24 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 04/11] xfs: add xfs_ilock_attr_map_shared Christoph Hellwig
2013-12-08 22:36 ` Dave Chinner
2013-12-09 18:16 ` Christoph Hellwig
2013-12-09 18:52 ` Ben Myers
2013-12-09 22:24 ` Dave Chinner
2013-12-09 22:30 ` Ben Myers
2013-12-10 16:13 ` Christoph Hellwig
2013-12-17 17:33 ` Ben Myers
2013-12-18 10:14 ` [PATCH 04/11 v2] " Christoph Hellwig
2013-12-18 21:47 ` Ben Myers
2013-12-06 20:30 ` [PATCH 05/11] xfs: reinstate the ilock in xfs_readdir Christoph Hellwig
2013-12-08 22:36 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 06/11] xfs: take the ilock around xfs_bmapi_read in xfs_zero_remaining_bytes Christoph Hellwig
2013-12-08 22:36 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 07/11] xfs: use xfs_ilock_data_map_shared in xfs_qm_dqtobp Christoph Hellwig
2013-12-08 22:38 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 08/11] xfs: use xfs_ilock_data_map_shared in xfs_qm_dqiterate Christoph Hellwig
2013-12-08 22:38 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 09/11] xfs: use xfs_ilock_attr_map_shared in xfs_attr_get Christoph Hellwig
2013-12-08 22:39 ` Dave Chinner [this message]
2013-12-06 20:30 ` [PATCH 10/11] xfs: use xfs_ilock_attr_map_shared in xfs_attr_list_int Christoph Hellwig
2013-12-08 22:39 ` Dave Chinner
2013-12-06 20:30 ` [PATCH 11/11] xfs: assert that we hold the ilock for extent map access Christoph Hellwig
2013-12-08 22:40 ` 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=20131208223902.GJ31386@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;
as well as URLs for NNTP newsgroup(s).