tools/testing/selftests/sched_ext/enq_last_no_enq_fails.c
Source file repositories/reference/linux-study-clean/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.c
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/sched_ext/enq_last_no_enq_fails.c- Extension
.c- Size
- 1529 bytes
- Lines
- 65
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: implementation source
- Status
- source implementation candidate
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
bpf/bpf.hscx/common.hsys/wait.hunistd.henq_last_no_enq_fails.bpf.skel.hscx_test.h
Detected Declarations
function Copyrightfunction runfunction cleanup
Annotated Snippet
#include <bpf/bpf.h>
#include <scx/common.h>
#include <sys/wait.h>
#include <unistd.h>
#include "enq_last_no_enq_fails.bpf.skel.h"
#include "scx_test.h"
static enum scx_test_status setup(void **ctx)
{
struct enq_last_no_enq_fails *skel;
skel = enq_last_no_enq_fails__open();
SCX_FAIL_IF(!skel, "Failed to open");
SCX_ENUM_INIT(skel);
SCX_FAIL_IF(enq_last_no_enq_fails__load(skel), "Failed to load skel");
*ctx = skel;
return SCX_TEST_PASS;
}
static enum scx_test_status run(void *ctx)
{
struct enq_last_no_enq_fails *skel = ctx;
struct bpf_link *link;
link = bpf_map__attach_struct_ops(skel->maps.enq_last_no_enq_fails_ops);
if (!link) {
SCX_ERR("Incorrectly failed at attaching scheduler");
return SCX_TEST_FAIL;
}
if (!skel->bss->exit_kind) {
SCX_ERR("Incorrectly stayed loaded");
return SCX_TEST_FAIL;
}
bpf_link__destroy(link);
return SCX_TEST_PASS;
}
static void cleanup(void *ctx)
{
struct enq_last_no_enq_fails *skel = ctx;
enq_last_no_enq_fails__destroy(skel);
}
struct scx_test enq_last_no_enq_fails = {
.name = "enq_last_no_enq_fails",
.description = "Verify we eject a scheduler if we specify "
"the SCX_OPS_ENQ_LAST flag without defining "
"ops.enqueue()",
.setup = setup,
.run = run,
.cleanup = cleanup,
};
REGISTER_SCX_TEST(&enq_last_no_enq_fails)
Annotation
- Immediate include surface: `bpf/bpf.h`, `scx/common.h`, `sys/wait.h`, `unistd.h`, `enq_last_no_enq_fails.bpf.skel.h`, `scx_test.h`.
- Detected declarations: `function Copyright`, `function run`, `function cleanup`.
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.