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(parent: 3c86882) | patch
x86: c_p_a() make it more robust against use of PAT bits
authorAndi Kleen <ak@suse.de>
Wed, 30 Jan 2008 12:33:52 +0000 (13:33 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:33:52 +0000 (13:33 +0100)
commit895bdc29956e5c9e9e101b2b1c2f0ed34130f945
treee95aed8be8660bfac8ca73037cd1e0f0c7e2cdadtree | snapshot (tar.gz zip)
parent3c868823413d76bdd80c643603be8ab09dcb4d65commit | diff
x86: c_p_a() make it more robust against use of PAT bits

Use the page table level instead of the PSE bit to check if the PTE
is for a 4K page or not. This makes the code more robust when the PAT
bit is changed because the PAT bit on 4K pages is in the same position
as the PSE bit.

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/mm/pageattr_32.c diff | blob | blame | history
arch/x86/mm/pageattr_64.c diff | blob | blame | history