tools/memory-model/litmus-tests/S+poonceonces.litmus

Source file repositories/reference/linux-study-clean/tools/memory-model/litmus-tests/S+poonceonces.litmus

File Facts

System
Linux kernel
Corpus path
tools/memory-model/litmus-tests/S+poonceonces.litmus
Extension
.litmus
Size
462 bytes
Lines
29
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

C S+poonceonces

(*
 * Result: Sometimes
 *
 * Starting with a two-process release-acquire chain ordering P0()'s
 * first store against P1()'s final load, if the smp_store_release()
 * is replaced by WRITE_ONCE() and the smp_load_acquire() replaced by
 * READ_ONCE(), is ordering preserved?
 *)

{}

P0(int *x, int *y)
{
	WRITE_ONCE(*x, 2);
	WRITE_ONCE(*y, 1);
}

P1(int *x, int *y)
{
	int r0;

	r0 = READ_ONCE(*y);
	WRITE_ONCE(*x, 1);
}

exists (x=2 /\ 1:r0=1)

Annotation

Implementation Notes