Messages in this thread | | | Subject | Re: [PATCH] mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge() | From | Mike Kravetz <> | Date | Wed, 11 Mar 2020 11:20:15 -0700 |
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On 3/11/20 10:24 AM, Vlastimil Babka wrote: > Commit f1e61557f023 ("mm: pack compound_dtor and compound_order into one word > in struct page") changed compound_dtor from a pointer to an array index in > order to pack it. To check if page has the hugeltbfs compound_dtor, we can > just compare the index directly without fetching the function pointer. > Said commit did that with PageHuge() and we can do the same with PageHeadHuge() > to make the code a bit smaller and faster. > > Signed-off-by: Vlastimil Babka <vbabka@suse.cz> > Cc: Mike Kravetz <mike.kravetz@oracle.com> > Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Thanks!
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> -- Mike Kravetz
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