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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-03-22 18:22:41 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-03-29 11:38:17 +0300 |
| commit | 2cd1083d79a0a8c223af430ca97884c28a1e2fc0 (patch) | |
| tree | 02b576c3fd3c6c9726cd6cab987f96acf2d68aa7 /drivers/gpu/ipu-v3/ipu-common.c | |
| parent | 993ca6e063a69a0c65ca42ed449b6bc1b3844151 (diff) | |
| download | linux-2cd1083d79a0a8c223af430ca97884c28a1e2fc0.tar.xz | |
iommu/amd: Make amd_iommu_devtable_lock a spin_lock
Before commit 0bb6e243d7fb ("iommu/amd: Support IOMMU_DOMAIN_DMA type
allocation") amd_iommu_devtable_lock had a read_lock() user but now
there are none. In fact, after the mentioned commit we had only
write_lock() user of the lock. Since there is no reason to keep it as
writer lock, change its type to a spin_lock.
I *think* that we might even be able to remove the lock because all its
current user seem to have their own protection.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-common.c')
0 files changed, 0 insertions, 0 deletions