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mm: Optimize find_exact_vma() to use vma_lookup()
authorLiam R. Howlett <Liam.Howlett@Oracle.com>
Thu, 8 Apr 2021 20:15:00 +0000 (16:15 -0400)
committerLiam R. Howlett <Liam.Howlett@oracle.com>
Fri, 11 Feb 2022 03:38:06 +0000 (22:38 -0500)
commitabea5db3ef3e94f0bb90070bb5ac1faa6bc3dddc
treee1a70863ee934847eff4dcc7ace444183991b2cftree
parent9f0906b9190b9d3a55cf3f4d24bb01aa1aece74ecommit | 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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