Re: [PATCH 2/2] block: use DAX for partition table reads

[Ross Zwisler]

On Fri, Jan 29, 2016 at 07:18:46AM -0800, Dan Williams wrote:
> Avoid populating pagecache when the block device is in DAX mode.
> Otherwise these page cache entries collide with the fsync/msync
> implementation and break data durability guarantees.
> 
> Cc: Jan Kara <jack@xxxxxxxx>
> Cc: Jeff Moyer <jmoyer@xxxxxxxxxx>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Dave Chinner <david@xxxxxxxxxxxxx>
> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Reported-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>

This solves the problem for me, thanks!

Tested-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>