This patch is an attempt to support MADV_FREE for Linux.
Rationale is following as.
Allocators call munmap(2) when user call free(3) if ptr is
in mmaped area. But munmap isn't cheap because it have to
clean up all pte entries, unlinking a vma and returns free pages
to page allocator so that
This patch is an attempt to support MADV_FREE for Linux.
Rationale is following as.
Allocators call munmap(2) when user call free(3) if ptr is
in mmaped area. But munmap isn't cheap because it have to
clean up all pte entries, unlinking a vma and returns free pages
to page allocator so that
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