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mmap: use the VMA iterator in count_vma_pages_range()
authorMatthew Wilcox (Oracle) <willy@infradead.org>
Thu, 14 Apr 2022 06:07:13 +0000 (23:07 -0700)
committerakpm <akpm@linux-foundation.org>
Thu, 14 Apr 2022 06:07:13 +0000 (23:07 -0700)
commitf72e74ce131d7c38624bf200e59155b851d5ace5
treef89586911d1510b382d4bdd56e888fd1558d2a92tree
parenta1429fe829f26a55ccf94d857a031e828e2affd9commit | diff
mmap: use the VMA iterator in count_vma_pages_range()

This simplifies the implementation and is faster than using the linked
list.

Link: https://lkml.kernel.org/r/20220404143501.2016403-13-Liam.Howlett@oracle.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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