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authorThomas Gleixner <tglx@linutronix.de>2008-02-09 23:24:09 +0100
committerThomas Gleixner <tglx@linutronix.de>2008-02-09 23:24:09 +0100
commitfac84939609a683503947f41eb93e1917d026263 (patch)
tree8bf2df694a2300a277cf097ba778f9b4b28f2122 /drivers/lguest
parentb1d95f4e41d6a5969e3a847ceeae8379f30c84c3 (diff)
downloadblackbird-op-linux-fac84939609a683503947f41eb93e1917d026263.tar.gz
blackbird-op-linux-fac84939609a683503947f41eb93e1917d026263.zip
x86: cpa, strict range check in try_preserve_large_page()
Right now, we check only the first 4k page for static required protections. This does not take overlapping regions into account. So we might end up setting the wrong permissions/protections for other parts of this large page. This can be optimized further, but correctness is the important part. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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