linux-kernel - Re: [PATCH v2 4/5] dax: use sb_issue_zerout instead of calling dax_clear

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Message-ID: <x49y48e6gu9.fsf@segfault.boston.devel.redhat.com>
Date:	Fri, 15 Apr 2016 11:18:22 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Vishal Verma <vishal.l.verma@...el.com>
Cc:	linux-nvdimm@...1.01.org, Jens Axboe <axboe@...com>,
	Jan Kara <jack@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	Dave Chinner <david@...morbit.com>,
	linux-kernel@...r.kernel.org, xfs@....sgi.com,
	linux-block@...r.kernel.org, linux-mm@...ck.org,
	Matthew Wilcox <matthew.r.wilcox@...el.com>,
	linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH v2 4/5] dax: use sb_issue_zerout instead of calling dax_clear_sectors

Vishal Verma <vishal.l.verma@...el.com> writes:

> From: Matthew Wilcox <matthew.r.wilcox@...el.com>
>
> dax_clear_sectors() cannot handle poisoned blocks.  These must be
> zeroed using the BIO interface instead.  Convert ext2 and XFS to use
> only sb_issue_zerout().
>
> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@...el.com>
> [vishal: Also remove the dax_clear_sectors function entirely]
> Signed-off-by: Vishal Verma <vishal.l.verma@...el.com>

Reviewed-by: Jeff Moyer <jmoyer@...hat.com>