From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org, hch@lst.de
Subject: Re: [PATCH 06/13] xfs: fetch dquots directly during quotacheck
Date: Mon, 23 Apr 2018 19:25:31 +0200 [thread overview]
Message-ID: <20180423172531.GF834@lst.de> (raw)
In-Reply-To: <152440959026.29601.18114675159046762818.stgit@magnolia>
On Sun, Apr 22, 2018 at 08:06:30AM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
>
> Quotacheck only runs during mount, which means that there are no other
> processes in the system that could be doing chown or chproj. Therefore
> there's no potential for racing to attach dquots to the inode so we can
> drop all the ILOCK and race detection bits from quotacheck.
Looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
Btw, one thing I've wondered for a while is if there is any point in
keeping the dquot pointers in the inode at all. With the radix tree
the dquots should be a few indirections and thus very few cache lines
away at any point in time, while saving us all the setup overhead, as
well as shrinking the inode.
next prev parent reply other threads:[~2018-04-23 17:24 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-22 15:05 [PATCH 00/13] xfs-4.18: quota refactor Darrick J. Wong
2018-04-22 15:05 ` [PATCH 01/13] xfs: refactor XFS_QMOPT_DQNEXT out of existence Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:13 ` Christoph Hellwig
2018-04-22 15:06 ` [PATCH 02/13] xfs: refactor dquot cache handling Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:14 ` Christoph Hellwig
2018-04-22 15:06 ` [PATCH 03/13] xfs: delegate dqget input checks to helper function Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:19 ` Christoph Hellwig
2018-04-22 15:06 ` [PATCH 04/13] xfs: remove unnecessary xfs_qm_dqattach parameter Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:19 ` Christoph Hellwig
2018-04-22 15:06 ` [PATCH 05/13] xfs: split out dqget for inodes from regular dqget Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:23 ` Christoph Hellwig
2018-04-23 21:57 ` Darrick J. Wong
2018-04-22 15:06 ` [PATCH 06/13] xfs: fetch dquots directly during quotacheck Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:25 ` Christoph Hellwig [this message]
2018-04-22 15:06 ` [PATCH 07/13] xfs: refactor incore dquot initialization functions Darrick J. Wong
2018-04-23 13:54 ` Brian Foster
2018-04-23 17:27 ` Christoph Hellwig
2018-04-24 16:01 ` Eric Sandeen
2018-04-22 15:06 ` [PATCH 08/13] xfs: refactor xfs_qm_dqtobp and xfs_qm_dqalloc Darrick J. Wong
2018-04-23 17:31 ` Christoph Hellwig
2018-04-24 13:07 ` Brian Foster
2018-04-24 14:08 ` Darrick J. Wong
2018-04-22 15:06 ` [PATCH 09/13] xfs: remove xfs_qm_dqread flags argument Darrick J. Wong
2018-04-23 17:32 ` Christoph Hellwig
2018-04-28 6:38 ` Darrick J. Wong
2018-04-22 15:07 ` [PATCH 10/13] xfs: replace XFS_QMOPT_DQALLOC with XFS_DQGET_{ALLOC, EXISTS} Darrick J. Wong
2018-04-23 17:33 ` Christoph Hellwig
2018-04-24 13:07 ` Brian Foster
2018-04-24 14:08 ` Darrick J. Wong
2018-04-22 15:07 ` [PATCH 11/13] xfs: report failing address when dquot verifier fails Darrick J. Wong
2018-04-23 17:33 ` Christoph Hellwig
2018-04-22 15:07 ` [PATCH 12/13] xfs: rename on-disk dquot counter zap functions Darrick J. Wong
2018-04-23 17:35 ` Christoph Hellwig
2018-04-28 6:47 ` Darrick J. Wong
2018-04-22 15:07 ` [PATCH 13/13] xfs: refactor dquot iteration Darrick J. Wong
2018-04-24 13:08 ` Brian Foster
2018-04-24 14:04 ` Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2018-04-30 5:43 [PATCH v2 00/13] xfs-4.18: quota refactor Darrick J. Wong
2018-04-30 5:43 ` [PATCH 06/13] xfs: fetch dquots directly during quotacheck Darrick J. Wong
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