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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2017-03-09 17:24:04 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-09 22:48:47 +0300 |
| commit | 30ec842660bd0d056d4a7028ac5bd4a82b113d4f (patch) | |
| tree | f8f0f172efa283962937149b62a05686595986dd /lib/locking-selftest-wlock-softirq.h | |
| parent | 505a60e225606fbd3d2eadc31ff793d939ba66f1 (diff) | |
| download | linux-30ec842660bd0d056d4a7028ac5bd4a82b113d4f.tar.xz | |
asm-generic: introduce __ARCH_USE_5LEVEL_HACK
We are going to introduce <asm-generic/pgtable-nop4d.h> to provide
abstraction for properly (in opposite to 5level-fixup.h hack) folded
p4d level. The new header will be included from pgtable-nopud.h.
If an architecture uses <asm-generic/nop*d.h>, we cannot use
5level-fixup.h directly to quickly convert the architecture to 5-level
paging as it would conflict with pgtable-nop4d.h.
With this patch an architecture can define __ARCH_USE_5LEVEL_HACK before
inclusion <asm-genenric/nop*d.h> to use 5level-fixup.h.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/locking-selftest-wlock-softirq.h')
0 files changed, 0 insertions, 0 deletions