Re: [PATCH 0/7] Device mapper and dm-mpath fixes

[Mike Snitzer <snitzer@redhat.com>]

On Wed, Aug 09 2017 at  2:32pm -0400,
Bart Van Assche <bart.vanassche@wdc.com> wrote:

> Hello Mike,
> 
> The patches in this series are what I came up with while analyzing the
> soft and hard lockups reported by Laurence Oberman. Please consider
> these patches for kernel v4.14.
> 
> Thank you,
> 
> Bart.
> 
> Bart Van Assche (7):
>   dm: Fix the second dec_pending() argument in __split_and_process_bio()
>   dm: Fix printk() rate limiting code
>   dm-mpath: Do not lock up a CPU with requeuing activity
>   dm-mpath: Avoid that building with W=1 causes gcc 7 to complain about
>     fall-through
>   dm-mpath: Complain about unsupported __multipath_map_bio() return
>     values
>   dm-mpath: Retry BLK_STS_RESOURCE errors
>   dm-mpath: Make the dm-sq requeuing behavior consistent with the dm-mq
>     behavior
> 
>  drivers/md/dm-mpath.c         |  8 ++++++--
>  drivers/md/dm-rq.c            |  9 +++++----
>  drivers/md/dm.c               | 12 +-----------
>  include/linux/device-mapper.h | 41 ++++++++++++-----------------------------
>  4 files changed, 24 insertions(+), 46 deletions(-)

Hey Bart,

Thanks for the patches.  I'm currently on a leave of absence to recover
from a nasty fall I had (broke my sacrum and dislocated my left thumb at
the wrist)... so: I won't be getting to these patches for a couple
weeks.

Mike