From: Greg KH <greg@kroah.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: stable@vger.kernel.org, linux-xfs@vger.kernel.org,
Christoph Hellwig <hch@lst.de>, Jan Stancek <jstancek@redhat.com>,
Dave Chinner <dchinner@redhat.com>,
"Darrick J . Wong" <darrick.wong@oracle.com>
Subject: Re: [PATCH 4.19] iomap: fix sub-page uptodate handling
Date: Thu, 20 May 2021 10:36:13 +0200 [thread overview]
Message-ID: <YKYffZMzHeuxCCiE@kroah.com> (raw)
In-Reply-To: <20210517165724.3150255-1-willy@infradead.org>
On Mon, May 17, 2021 at 05:57:24PM +0100, Matthew Wilcox (Oracle) wrote:
> From: Christoph Hellwig <hch@lst.de>
>
> commit 1cea335d1db1ce6ab71b3d2f94a807112b738a0f upstream
>
> bio completions can race when a page spans more than one file system
> block. Add a spinlock to synchronize marking the page uptodate.
>
> Fixes: 9dc55f1389f9 ("iomap: add support for sub-pagesize buffered I/O without buffer heads")
> Reported-by: Jan Stancek <jstancek@redhat.com>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Dave Chinner <dchinner@redhat.com>
> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> ---
> fs/iomap.c | 34 ++++++++++++++++++++++++----------
> include/linux/iomap.h | 1 +
> 2 files changed, 25 insertions(+), 10 deletions(-)
Now queued up, thnaks.
greg k-h
prev parent reply other threads:[~2021-05-20 8:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-17 16:57 [PATCH 4.19] iomap: fix sub-page uptodate handling Matthew Wilcox (Oracle)
2021-05-20 8:36 ` Greg KH [this message]
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