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    SubjectRe: [RFC][PATCH 02/10] mm: Remove likely() from mapping_unevictable()
    Joe Perches <> writes:
    > It'd be better to use
    > if (!mapping)
    > return 0;
    > return test_bit(AS_UNEVICTABLE, &mapping->flags);
    > to avoid the unnecessary !!

    How about

    return mapping && test_bit(AS_UNEVICTABLE, &mapping->flags);



    Yossarian was moved very deeply by the absolute simplicity of
    this clause of Catch-22 and let out a respectful whistle.
    "That's some catch, that Catch-22," he observed.
    "It's the best there is," Doc Daneeka agreed.

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      Last update: 2010-12-10 09:11    [W:0.020 / U:126.348 seconds]
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