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Merge tag '9p-for-5.11-rc1' of git://github.com/martinetd/linux
[linux-2.6-microblaze.git]
/
tools
/
memory-model
/
litmus-tests
/
S+fencewmbonceonce+poacquireonce.litmus
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C S+fencewmbonceonce+poacquireonce
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(*
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* Result: Never
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*
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* Can a smp_wmb(), instead of a release, and an acquire order a prior
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* store against a subsequent store?
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*)
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{
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int x;
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int y;
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}
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P0(int *x, int *y)
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{
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WRITE_ONCE(*x, 2);
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smp_wmb();
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WRITE_ONCE(*y, 1);
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}
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P1(int *x, int *y)
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{
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int r0;
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r0 = smp_load_acquire(y);
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WRITE_ONCE(*x, 1);
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}
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exists (x=2 /\ 1:r0=1)