Mike Marciniszyn 7049de65c9 IB/hfi1: Fix hard lockup due to not using save/restore spin lock ...

Commit b9b06cb6fe
("IB/hfi1: Fix missing lock/unlock in verbs drain callback")
added a spin lock.

Unfortunately, the new lock code can be called from a base
level interrupt state, and an interrupt that can get stacked
will attempt to get the same lock.

Fix by using the flag save/restore spin lock variation.

Cc: stable@vger.kernel.org # 4.6+
Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

2016-05-26 12:21:10 -04:00

..

core

IB/security: Restrict use of the write() interface

2016-04-28 12:03:16 -04:00

hw

IB/hfi1: Fix hard lockup due to not using save/restore spin lock

2016-05-26 12:21:10 -04:00

sw

IB/rdmavt: Use kzalloc_node

2016-05-26 11:23:10 -04:00

ulp

IB/srp: Move common code into the caller

2016-05-12 14:18:57 -04:00

Kconfig

IB/hfi1: Move driver out of staging

2016-05-26 11:35:14 -04:00

Makefile

IB/rdmavt: Create module framework and handle driver registration

2016-03-10 20:37:04 -05:00