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authorPaolo Bonzini <pbonzini@redhat.com>2023-03-15 12:34:01 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2023-05-25 10:18:33 +0200
commiteea7cd3fc5139d7523f3c7a67d9c864b944dfacd (patch)
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parent60f4f62efeb174fe7433ce9ebc37836e70ec9b75 (diff)
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monitor: do not use mb_read/mb_set
Instead of relying on magic memory barriers, document the pattern that is being used. It is the one based on Dekker's algorithm, and in this case it is embodied as follows: enqueue request; sleeping = true; smp_mb(); smp_mb(); if (sleeping) kick(); if (!have a request) yield(); Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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