Re: [PATCH v3] dcssblk: add dax_operations support

From: Gerald Schaefer
Date: Thu Apr 20 2017 - 13:06:15 EST


On Wed, 19 Apr 2017 15:32:38 -0700
Dan Williams <dan.j.williams@xxxxxxxxx> wrote:

> Setup a dax_dev to have the same lifetime as the dcssblk block device
> and add a ->direct_access() method that is equivalent to
> dcssblk_direct_access(). Once fs/dax.c has been converted to use
> dax_operations the old dcssblk_direct_access() will be removed.
>
> Reported-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
> ---
> Changes since v2:
> * fix return code in the alloc_dax() failure case (Gerald)
> * assign dax_dev to dev_info and kill local variable (Gerald)
>
> drivers/s390/block/Kconfig | 1 +
> drivers/s390/block/dcssblk.c | 55 +++++++++++++++++++++++++++++++++++-------
> 2 files changed, 47 insertions(+), 9 deletions(-)

Acked-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>