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SubjectRe: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
David Howells <> wrote:

> No, they're not. LL/SC is more flexible than CMPXCHG because under some
> circumstances, you can get away without doing the SC,

Of course, CMPXCHG doesn't have to store either, though it still performs a
locked-write-cycle on x86 if I remember correctly.

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