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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)
committerMatthew Wilcox (Oracle) <willy@infradead.org>
Wed, 20 Oct 2021 20:00:32 +0000 (16:00 -0400)
commit20f0f0f2f110383d2457a19967e84a325cb1917a
tree341334b5703f5765f44cf317ea241877658c72b4tree
parent74ba35e3736e9086c9f8b8b7d7e8a9b65e46f882commit | 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>
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