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| author | JP Kobryn <[email protected]> | 2025-05-15 00:19:35 +0000 |
|---|---|---|
| committer | Tejun Heo <[email protected]> | 2025-05-19 20:29:42 +0000 |
| commit | 748922dcfabdd655d25fb6dd09a60e694a3d35e6 (patch) | |
| tree | bac6da9c031fab4a6d40efa2a4feb0494cda38d6 /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | cgroup: use separate rstat trees for each subsystem (diff) | |
| download | kernel-748922dcfabdd655d25fb6dd09a60e694a3d35e6.tar.gz kernel-748922dcfabdd655d25fb6dd09a60e694a3d35e6.zip | |
cgroup: use subsystem-specific rstat locks to avoid contention
It is possible to eliminate contention between subsystems when
updating/flushing stats by using subsystem-specific locks. Let the existing
rstat locks be dedicated to the cgroup base stats and rename them to
reflect that. Add similar locks to the cgroup_subsys struct for use with
individual subsystems.
Lock initialization is done in the new function ss_rstat_init(ss) which
replaces cgroup_rstat_boot(void). If NULL is passed to this function, the
global base stat locks will be initialized. Otherwise, the subsystem locks
will be initialized.
Change the existing lock helper functions to accept a reference to a css.
Then within these functions, conditionally select the appropriate locks
based on the subsystem affiliation of the given css. Add helper functions
for this selection routine to avoid repeated code.
Signed-off-by: JP Kobryn <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
0 files changed, 0 insertions, 0 deletions