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Hugh Dickins authored
When mprotect shifts the boundary between vmas (merging the reprotected area into the vma before or the vma after), make sure that the expanding vma has anon_vma if the shrinking vma had, to cover anon pages imported. Thanks to Andrea for alerting us to this oversight. Cc: <andrea@suse.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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