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From: Christoph Hellwig <hch@infradead.org>
To: Mike Snitzer <snitzer@redhat.com>
Cc: axboe@kernel.dk, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, tj@kernel.org, hch@infradead.org,
	jmoyer@redhat.com, vgoyal@redhat.com, dm-devel@redhat.com
Subject: Re: [RFC PATCH] block: all callers should check blkdev_issue_flush's return
Date: Tue, 26 Jun 2012 11:51:15 -0400	[thread overview]
Message-ID: <20120626155115.GA17242@infradead.org> (raw)
In-Reply-To: <1340724445-3314-1-git-send-email-snitzer@redhat.com>

On Tue, Jun 26, 2012 at 11:27:25AM -0400, Mike Snitzer wrote:
> It is concerning that a FLUSH may fail but the blkdev_issue_flush
> callers assume it will always succeed.
> 
> Each blkdev_issue_flush caller should come to terms with the reality
> that a FLUSH may fail -- the file_operations' .fsync methods in
> particular.  nilfs2 is the only filesystem that checks
> blkdev_issue_flush's return.

Good spot, but it would be way better if you actually provided patches
to fix this instead of just adding more compiler warnings.


  parent reply	other threads:[~2012-06-26 15:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-26 15:27 [RFC PATCH] block: all callers should check blkdev_issue_flush's return Mike Snitzer
2012-06-26 15:33 ` Jeff Moyer
2012-06-26 15:51 ` Christoph Hellwig [this message]
2012-06-26 15:57   ` Mike Snitzer
2012-07-01  7:28     ` Joel Becker
2012-07-02 14:35       ` Mike Snitzer

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