Re: [RFC PATCH v2 0/2] Fix deadlock in ufs

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On 1/27/2021 7:26 PM, Asutosh Das wrote:
v1 -> v2
Use pm_runtime_get/put APIs.
Assuming that all bsg devices are scsi devices may break.

This patchset attempts to fix a deadlock in ufs.
This deadlock occurs because the ufs host driver tries to resume
its child (wlun scsi device) to send SSU to it during its suspend.

Asutosh Das (2):
   block: bsg: resume scsi device before accessing
   scsi: ufs: Fix deadlock while suspending ufs host

  block/bsg.c               |  8 ++++++++
  drivers/scsi/ufs/ufshcd.c | 18 ++----------------
  2 files changed, 10 insertions(+), 16 deletions(-)


Hi Alan/Bart

Please can you take a look at this series.
Please let me know if you've any better suggestions for this.


Thanks
-asd


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