Re: [PATCH] ext4: Unmap metadata when zeroing blocks

[PATCH] ext4: Unmap metadata when zeroing blocks · Jan Kara <jack@suse.cz> · 2016-09-27
Re: [PATCH] ext4: Unmap metadata when zeroing blocks · Lukas Czerner <hidden> · 2016-09-29
Re: [PATCH] ext4: Unmap metadata when zeroing blocks · Jan Kara <jack@suse.cz> · 2016-10-03
Re: [PATCH] ext4: Unmap metadata when zeroing blocks · Theodore Ts'o <tytso@mit.edu> · 2016-09-30

From: Theodore Ts'o <tytso@mit.edu>
Date: 2016-09-30 06:04:04

On Tue, Sep 27, 2016 at 06:15:18PM +0200, Jan Kara wrote:

When zeroing blocks for DAX allocations, we also have to unmap aliases
in the block device mappings. Otherwise writeback can overwrite zeros
with stale data from block device page cache.

Signed-off-by: Jan Kara <jack@suse.cz>

Thanks, applied.

					- Ted

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