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authorAlan Cox <alan@redhat.com>2008-05-23 13:04:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-24 09:56:09 -0700
commit80119ef5c8153e0a6cc5edf00c083dc98a9bd348 (patch)
treea2af11a3991b1bebe9d764ab6d4d28891e86eda2 /drivers
parent6c7c6afbb8c0e60d32a563cae7c6889211e9d9d8 (diff)
mm: fix atomic_t overflow in vm
The atomic_t type is 32bit but a 64bit system can have more than 2^32 pages of virtual address space available. Without this we overflow on ludicrously large mappings Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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