IB/hfi1: Notify remove MMU/RB callback of calling context

Browse source

Tell the remove MMU/RB callback if it's being called as
part of a memory invalidation or not. This can be important
in preventing a deadlock if the remove callback attempts to
take the map_sem semaphore because the kernel's MMU
invalidation functions have already taken it.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

...

This commit is contained in:

Mitko Haralanov 2016-03-08 11:14:48 -08:00 • committed by Doug Ledford

parent 368f2b59d0

commit 909e2cd004

3 changed files with 11 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

10

drivers/staging/rdma/hfi1/mmu_rb.c

View file

2

drivers/staging/rdma/hfi1/mmu_rb.h

View file

9

drivers/staging/rdma/hfi1/user_exp_rcv.c

View file