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| author | Sebastian Andrzej Siewior <[email protected]> | 2017-09-21 15:21:40 +0000 |
|---|---|---|
| committer | Alex Williamson <[email protected]> | 2017-11-06 18:24:35 +0000 |
| commit | 94e2cc4dba39efbb63e84cd4f7243627c16ceac5 (patch) | |
| tree | 175fe887e65dc3029129904b2130ace1b23ebb70 /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | |
| parent | Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d'... (diff) | |
| download | kernel-94e2cc4dba39efbb63e84cd4f7243627c16ceac5.tar.gz kernel-94e2cc4dba39efbb63e84cd4f7243627c16ceac5.zip | |
iommu/iova: Use raw_cpu_ptr() instead of get_cpu_ptr() for ->fq
get_cpu_ptr() disabled preemption and returns the ->fq object of the
current CPU. raw_cpu_ptr() does the same except that it not disable
preemption which means the scheduler can move it to another CPU after it
obtained the per-CPU object.
In this case this is not bad because the data structure itself is
protected with a spin_lock. This change shouldn't matter however on RT
it does because the sleeping lock can't be accessed with disabled
preemption.
Cc: Joerg Roedel <[email protected]>
Cc: [email protected]
Reported-by: [email protected]
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c')
0 files changed, 0 insertions, 0 deletions