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由 Linus Torvalds 提交于
Like the mlock() change previously, this makes the stack guard check code use vma->vm_prev to see what the mapping below the current stack is, rather than have to look it up with find_vma(). Also, accept an abutting stack segment, since that happens naturally if you split the stack with mlock or mprotect. Tested-by: NIan Campbell <ijc@hellion.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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