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MFC r326982

Description

MFC r326982

Document the semantics of atomic_thread_fence operations.

Add atomic_load_<type> and atomic_store_<type>, and explain why they
exist.

Define the synchronizes-with relationship and its effects.

Reorder and revise some of the existing text.  For example, more
precisely describe when ordinary accesses are atomic.

Details

Provenance
alcAuthored on
Parents
rS327223: [mips] fix compilation of TP-WN1043ND kernel configuration
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