From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>,
xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org,
linux-aio@kvack.org
Subject: Re: aio completions vs file_accessed race, was: Re: [PATCH 7/8] xfs: split direct I/O and DAX path
Date: Thu, 29 Sep 2016 22:18:34 +0200 [thread overview]
Message-ID: <20160929201834.GA5872@lst.de> (raw)
In-Reply-To: <20160929083824.GA12799@lst.de>
Can you try the patch below? That just moves the file_accessed call
before the I/O, similar to how we handle timestamp updates on the write
side. generic_file_read_iter will also need a similar update.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-fsdevel@vger.kernel.org, linux-aio@kvack.org,
Christoph Hellwig <hch@lst.de>,
xfs@oss.sgi.com
Subject: Re: aio completions vs file_accessed race, was: Re: [PATCH 7/8] xfs: split direct I/O and DAX path
Date: Thu, 29 Sep 2016 22:18:34 +0200 [thread overview]
Message-ID: <20160929201834.GA5872@lst.de> (raw)
In-Reply-To: <20160929083824.GA12799@lst.de>
Can you try the patch below? That just moves the file_accessed call
before the I/O, similar to how we handle timestamp updates on the write
side. generic_file_read_iter will also need a similar update.
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next prev parent reply other threads:[~2016-09-29 20:18 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-22 15:27 xfs: untangle the direct I/O and DAX path, fix DAX locking Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
[not found] ` <1466609236-23801-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-06-22 15:27 ` [PATCH 1/8] xfs: don't pass ioflags around in the ioctl path Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` [PATCH 2/8] xfs: kill ioflags Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` [PATCH 3/8] xfs: remove s_maxbytes enforcement in xfs_file_read_iter Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` [PATCH 4/8] xfs: split xfs_file_read_iter into buffered and direct I/O helpers Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` [PATCH 5/8] xfs: stop using generic_file_read_iter for direct I/O Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` [PATCH 6/8] xfs: direct calls in the direct I/O path Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` [PATCH 7/8] xfs: split direct I/O and DAX path Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
[not found] ` <1466609236-23801-8-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-09-29 2:53 ` Darrick J. Wong
2016-09-29 2:53 ` Darrick J. Wong
2016-09-29 2:53 ` Darrick J. Wong
2016-09-29 8:38 ` aio completions vs file_accessed race, was: " Christoph Hellwig
2016-09-29 8:38 ` Christoph Hellwig
2016-09-29 20:18 ` Christoph Hellwig [this message]
2016-09-29 20:18 ` Christoph Hellwig
2016-09-29 20:18 ` Christoph Hellwig
2016-09-29 20:18 ` Christoph Hellwig
2016-09-29 20:33 ` Darrick J. Wong
2016-09-29 20:33 ` Darrick J. Wong
2016-06-22 15:27 ` [PATCH 8/8] xfs: fix locking for DAX writes Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-23 14:22 ` Boaz Harrosh
2016-06-23 14:22 ` Boaz Harrosh
2016-06-23 23:24 ` xfs: untangle the direct I/O and DAX path, fix DAX locking Dave Chinner
2016-06-23 23:24 ` Dave Chinner
2016-06-23 23:24 ` Dave Chinner
2016-06-24 1:14 ` Dan Williams
2016-06-24 1:14 ` Dan Williams
2016-06-24 7:13 ` Dave Chinner
2016-06-24 7:13 ` Dave Chinner
2016-06-24 7:31 ` Christoph Hellwig
2016-06-24 7:31 ` Christoph Hellwig
2016-06-24 7:26 ` Christoph Hellwig
2016-06-24 7:26 ` Christoph Hellwig
2016-06-24 7:26 ` Christoph Hellwig
2016-06-24 23:00 ` Dave Chinner
2016-06-24 23:00 ` Dave Chinner
2016-06-28 13:10 ` Christoph Hellwig
2016-06-28 13:10 ` Christoph Hellwig
2016-06-28 13:10 ` Christoph Hellwig
[not found] ` <20160628131059.GA30475-jcswGhMUV9g@public.gmane.org>
2016-06-28 13:27 ` Boaz Harrosh
2016-06-28 13:27 ` Boaz Harrosh
2016-06-28 13:27 ` Boaz Harrosh
[not found] ` <57727B27.7060104-/8YdC2HfS5554TAoqtyWWQ@public.gmane.org>
2016-06-28 13:39 ` Christoph Hellwig
2016-06-28 13:39 ` Christoph Hellwig
2016-06-28 13:39 ` Christoph Hellwig
[not found] ` <20160628133928.GB31283-jcswGhMUV9g@public.gmane.org>
2016-06-28 13:56 ` Boaz Harrosh
2016-06-28 13:56 ` Boaz Harrosh
2016-06-28 13:56 ` Boaz Harrosh
[not found] ` <5772820E.2080403-/8YdC2HfS5554TAoqtyWWQ@public.gmane.org>
2016-06-28 15:39 ` Christoph Hellwig
2016-06-28 15:39 ` Christoph Hellwig
2016-06-28 15:39 ` Christoph Hellwig
[not found] ` <20160628153925.GA2643-jcswGhMUV9g@public.gmane.org>
2016-06-29 12:23 ` Boaz Harrosh
2016-06-29 12:23 ` Boaz Harrosh
2016-06-29 12:23 ` Boaz Harrosh
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