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SubjectRe: [PATCH] MM: implement MADV_FREE lazy freeing of anonymous memory
Ulrich Drepper wrote:
> Rik van Riel wrote:
>> I think that maybe for 2.6.22 we should just alias MADV_FREE
>> to run with the MADV_DONTNEED functionality, so that the glibc
>> people can make the change on their side while we figure out
>> what will be the best thing to do on the kernel side.
>
> No need for that. We can later extend glibc to use MADV_FREE and fall
> back on MADV_DONTNEED.

It's trivial to merge the MADV_FREE #defines into the kernel
though, and aliasing MADV_FREE to MADV_DONTNEED for the time
being is a one-liner - just an extra constant into the big
switch statement in sys_madvise().

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