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mm: optimize find_exact_vma() to use vma_lookup()
authorLiam R. Howlett <Liam.Howlett@Oracle.com>
Thu, 14 Apr 2022 06:07:15 +0000 (23:07 -0700)
committerLiam R. Howlett <Liam.Howlett@oracle.com>
Tue, 26 Apr 2022 14:36:35 +0000 (10:36 -0400)
commit82417d384ea5c55748a9cdc887fe4e5524c980a2
tree4cc8dd5b7cc3bb2040069b02ea9c2daf8762f2e4tree
parent8c986b6898c2d925e8a4849286dd42a0f466db81commit | diff
mm: optimize find_exact_vma() to use vma_lookup()

Use vma_lookup() to walk the tree to the start value requested.  If the
vma at the start does not match, then the answer is NULL and there is no
need to look at the next vma the way that find_vma() would.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
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