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| author |   Davidlohr Bueso <dave@stgolabs.net> | 2019-11-01 13:00:04 -0700 |
|---|---|---|
| committer |   Sasha Levin <sashal@kernel.org> | 2019-11-21 20:10:45 -0500 |
| commit | 8aea7f82153d6f292add3eb4bd7ba8edcae5c7f7 (patch) | |
| tree | 244565444f8607800b64948edd97ccf12a9e2d7d /tools | |
| parent | drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86 (diff) | |
| download | wireguard-linux-8aea7f82153d6f292add3eb4bd7ba8edcae5c7f7.tar.xz wireguard-linux-8aea7f82153d6f292add3eb4bd7ba8edcae5c7f7.zip | |
drivers/hv: Replace binary semaphore with mutex
At a slight footprint cost (24 vs 32 bytes), mutexes are more optimal
than semaphores; it's also a nicer interface for mutual exclusion,
which is why they are encouraged over binary semaphores, when possible.
Replace the hyperv_mmio_lock, its semantics implies traditional lock
ownership; that is, the lock owner is the same for both lock/unlock
operations. Therefore it is safe to convert.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions