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authorAndrea Righi <arighi@nvidia.com>2025-02-14 20:40:05 +0100
committerTejun Heo <tj@kernel.org>2025-02-16 06:52:20 -1000
commit0aaaf89df86da28fa4928faa55a529beac1d6cab (patch)
treed7bd7d003bcc123659cc30b6295b2c05c6ce27c7 /tools
parentd73249f88743df63a2bdce0e3153369963113710 (diff)
sched_ext: idle: Introduce SCX_OPS_BUILTIN_IDLE_PER_NODE
Add the new scheduler flag SCX_OPS_BUILTIN_IDLE_PER_NODE, which allows BPF schedulers to select between using a global flat idle cpumask or multiple per-node cpumasks. This only introduces the flag and the mechanism to enable/disable this feature without affecting any scheduling behavior. Cc: Yury Norov [NVIDIA] <yury.norov@gmail.com> Signed-off-by: Andrea Righi <arighi@nvidia.com> Reviewed-by: Yury Norov [NVIDIA] <yury.norov@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/sched_ext/include/scx/compat.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/sched_ext/include/scx/compat.h b/tools/sched_ext/include/scx/compat.h
index b50280e2ba2b..d63cf40be8ee 100644
--- a/tools/sched_ext/include/scx/compat.h
+++ b/tools/sched_ext/include/scx/compat.h
@@ -109,6 +109,9 @@ static inline bool __COMPAT_struct_has_field(const char *type, const char *field
#define SCX_OPS_SWITCH_PARTIAL \
__COMPAT_ENUM_OR_ZERO("scx_ops_flags", "SCX_OPS_SWITCH_PARTIAL")
+#define SCX_OPS_BUILTIN_IDLE_PER_NODE \
+ __COMPAT_ENUM_OR_ZERO("scx_ops_flags", "SCX_OPS_BUILTIN_IDLE_PER_NODE")
+
static inline long scx_hotplug_seq(void)
{
int fd;