x86/mm: Reduce untagged_addr() overhead for systems without LAM

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Use alternatives to reduce untagged_addr() overhead.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20230312112612.31869-8-kirill.shutemov%40linux.intel.com

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Kirill A. Shutemov 2023-03-12 14:26:02 +03:00 • committed by Dave Hansen

parent 74c228d20a

commit e0bddc19ba

2 changed files with 37 additions and 12 deletions

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8

arch/x86/include/asm/disabled-features.h

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41

arch/x86/include/asm/uaccess.h

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