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由 Linus Torvalds 提交于
If we've split the stack vma, only the lowest one has the guard page. Now that we have a doubly linked list of vma's, checking this is trivial. Tested-by: NIan Campbell <ijc@hellion.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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