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| author |   Luis R. Rodriguez <mcgrof@kernel.org> | 2018-08-17 15:46:32 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-17 16:20:29 -0700 |
| commit | 1a9b4b3d75679fbe8c3bb8fb7e957ea693b6a89c (patch) | |
| tree | fc1bc338462e660d33b13b4a47c399e0e4ca4f42 /include | |
| parent | mm: provide a fallback for PAGE_KERNEL_RO for architectures (diff) | |
| download | linux-dev-1a9b4b3d75679fbe8c3bb8fb7e957ea693b6a89c.tar.xz linux-dev-1a9b4b3d75679fbe8c3bb8fb7e957ea693b6a89c.zip | |
mm: provide a fallback for PAGE_KERNEL_EXEC for architectures
Some architectures just don't have PAGE_KERNEL_EXEC. The mm/nommu.c and
mm/vmalloc.c code have been using PAGE_KERNEL as a fallback for years.
Move this fallback to asm-generic.
Link: http://lkml.kernel.org/r/20180510185507.2439-3-mcgrof@kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/pgtable.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 62bbd6f23c35..88ebc6102c7c 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -1109,6 +1109,10 @@ static inline bool arch_has_pfn_modify_check(void) # define PAGE_KERNEL_RO PAGE_KERNEL #endif +#ifndef PAGE_KERNEL_EXEC +# define PAGE_KERNEL_EXEC PAGE_KERNEL +#endif + #endif /* !__ASSEMBLY__ */ #ifndef io_remap_pfn_range |