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-rw-r--r--tools/sched_ext/include/scx/common.bpf.h21
-rw-r--r--tools/sched_ext/include/scx/compat.bpf.h19
-rw-r--r--tools/sched_ext/include/scx/user_exit_info.h4
3 files changed, 41 insertions, 3 deletions
diff --git a/tools/sched_ext/include/scx/common.bpf.h b/tools/sched_ext/include/scx/common.bpf.h
index f538c75db183..27749c51c3ec 100644
--- a/tools/sched_ext/include/scx/common.bpf.h
+++ b/tools/sched_ext/include/scx/common.bpf.h
@@ -7,7 +7,13 @@
#ifndef __SCX_COMMON_BPF_H
#define __SCX_COMMON_BPF_H
+#ifdef LSP
+#define __bpf__
+#include "../vmlinux/vmlinux.h"
+#else
#include "vmlinux.h"
+#endif
+
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <asm-generic/errno.h>
@@ -35,8 +41,8 @@ void scx_bpf_dispatch_vtime(struct task_struct *p, u64 dsq_id, u64 slice, u64 vt
u32 scx_bpf_dispatch_nr_slots(void) __ksym;
void scx_bpf_dispatch_cancel(void) __ksym;
bool scx_bpf_consume(u64 dsq_id) __ksym;
-void scx_bpf_dispatch_from_dsq_set_slice(struct bpf_iter_scx_dsq *it__iter, u64 slice) __ksym;
-void scx_bpf_dispatch_from_dsq_set_vtime(struct bpf_iter_scx_dsq *it__iter, u64 vtime) __ksym;
+void scx_bpf_dispatch_from_dsq_set_slice(struct bpf_iter_scx_dsq *it__iter, u64 slice) __ksym __weak;
+void scx_bpf_dispatch_from_dsq_set_vtime(struct bpf_iter_scx_dsq *it__iter, u64 vtime) __ksym __weak;
bool scx_bpf_dispatch_from_dsq(struct bpf_iter_scx_dsq *it__iter, struct task_struct *p, u64 dsq_id, u64 enq_flags) __ksym __weak;
bool scx_bpf_dispatch_vtime_from_dsq(struct bpf_iter_scx_dsq *it__iter, struct task_struct *p, u64 dsq_id, u64 enq_flags) __ksym __weak;
u32 scx_bpf_reenqueue_local(void) __ksym;
@@ -65,7 +71,7 @@ s32 scx_bpf_pick_any_cpu(const cpumask_t *cpus_allowed, u64 flags) __ksym;
bool scx_bpf_task_running(const struct task_struct *p) __ksym;
s32 scx_bpf_task_cpu(const struct task_struct *p) __ksym;
struct rq *scx_bpf_cpu_rq(s32 cpu) __ksym;
-struct cgroup *scx_bpf_task_cgroup(struct task_struct *p) __ksym;
+struct cgroup *scx_bpf_task_cgroup(struct task_struct *p) __ksym __weak;
/*
* Use the following as @it__iter when calling
@@ -309,6 +315,15 @@ void bpf_cpumask_copy(struct bpf_cpumask *dst, const struct cpumask *src) __ksym
u32 bpf_cpumask_any_distribute(const struct cpumask *cpumask) __ksym;
u32 bpf_cpumask_any_and_distribute(const struct cpumask *src1,
const struct cpumask *src2) __ksym;
+u32 bpf_cpumask_weight(const struct cpumask *cpumask) __ksym;
+
+/*
+ * Access a cpumask in read-only mode (typically to check bits).
+ */
+const struct cpumask *cast_mask(struct bpf_cpumask *mask)
+{
+ return (const struct cpumask *)mask;
+}
/* rcu */
void bpf_rcu_read_lock(void) __ksym;
diff --git a/tools/sched_ext/include/scx/compat.bpf.h b/tools/sched_ext/include/scx/compat.bpf.h
index 3d2fe1208900..e5afe9efd3f3 100644
--- a/tools/sched_ext/include/scx/compat.bpf.h
+++ b/tools/sched_ext/include/scx/compat.bpf.h
@@ -15,6 +15,25 @@
__ret; \
})
+/* v6.12: 819513666966 ("sched_ext: Add cgroup support") */
+#define __COMPAT_scx_bpf_task_cgroup(p) \
+ (bpf_ksym_exists(scx_bpf_task_cgroup) ? \
+ scx_bpf_task_cgroup((p)) : NULL)
+
+/* v6.12: 4c30f5ce4f7a ("sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()") */
+#define __COMPAT_scx_bpf_dispatch_from_dsq_set_slice(it, slice) \
+ (bpf_ksym_exists(scx_bpf_dispatch_from_dsq_set_slice) ? \
+ scx_bpf_dispatch_from_dsq_set_slice((it), (slice)) : (void)0)
+#define __COMPAT_scx_bpf_dispatch_from_dsq_set_vtime(it, vtime) \
+ (bpf_ksym_exists(scx_bpf_dispatch_from_dsq_set_vtime) ? \
+ scx_bpf_dispatch_from_dsq_set_vtime((it), (vtime)) : (void)0)
+#define __COMPAT_scx_bpf_dispatch_from_dsq(it, p, dsq_id, enq_flags) \
+ (bpf_ksym_exists(scx_bpf_dispatch_from_dsq) ? \
+ scx_bpf_dispatch_from_dsq((it), (p), (dsq_id), (enq_flags)) : false)
+#define __COMPAT_scx_bpf_dispatch_vtime_from_dsq(it, p, dsq_id, enq_flags) \
+ (bpf_ksym_exists(scx_bpf_dispatch_vtime_from_dsq) ? \
+ scx_bpf_dispatch_vtime_from_dsq((it), (p), (dsq_id), (enq_flags)) : false)
+
/*
* Define sched_ext_ops. This may be expanded to define multiple variants for
* backward compatibility. See compat.h::SCX_OPS_LOAD/ATTACH().
diff --git a/tools/sched_ext/include/scx/user_exit_info.h b/tools/sched_ext/include/scx/user_exit_info.h
index 891693ee604e..8ce2734402e1 100644
--- a/tools/sched_ext/include/scx/user_exit_info.h
+++ b/tools/sched_ext/include/scx/user_exit_info.h
@@ -25,7 +25,11 @@ struct user_exit_info {
#ifdef __bpf__
+#ifdef LSP
+#include "../vmlinux/vmlinux.h"
+#else
#include "vmlinux.h"
+#endif
#include <bpf/bpf_core_read.h>
#define UEI_DEFINE(__name) \