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| author | Michael J. Ruhl <michael.j.ruhl@intel.com> | 2017-08-04 13:52:38 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-22 14:22:36 -0400 |
| commit | f2a3bc00a03c2cc9caa40c8867de973fd4e48c6a (patch) | |
| tree | 509797e5304e6d1e3a5165036582b5e0a6ae2a28 /tools/perf/scripts | |
| parent | IB/hfi1: Use host_link_state to read state when DC is shut down (diff) | |
| download | linux-f2a3bc00a03c2cc9caa40c8867de973fd4e48c6a.tar.gz linux-f2a3bc00a03c2cc9caa40c8867de973fd4e48c6a.zip | |
IB/hfi1: Protect context array set/clear with spinlock
The rcd array can be accessed from user context or during interrupts.
Protecting this with a mutex isn't a good idea because the mutex should
not be used from an IRQ.
Protect the allocation and freeing of rcd array elements with a
spinlock.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'tools/perf/scripts')
0 files changed, 0 insertions, 0 deletions