Re: [PATCH v2 02/18] fsdax: Use dax_page_idle() to document DAX busy page checking

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On Thu, Sep 15, 2022 at 08:35:21PM -0700, Dan Williams wrote:
> In advance of converting DAX pages to be 0-based, use a new
> dax_page_idle() helper to both simplify that future conversion, but also
> document all the kernel locations that are watching for DAX page idle
> events.
> 
> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
> Cc: Jan Kara <jack@xxxxxxx>
> Cc: "Darrick J. Wong" <djwong@xxxxxxxxxx>
> Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: John Hubbard <jhubbard@xxxxxxxxxx>
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
> ---
>  fs/dax.c            |    4 ++--
>  fs/ext4/inode.c     |    3 +--
>  fs/fuse/dax.c       |    5 ++---
>  fs/xfs/xfs_file.c   |    5 ++---
>  include/linux/dax.h |    9 +++++++++
>  5 files changed, 16 insertions(+), 10 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason



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