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authorLuis R. Rodriguez <mcgrof@kernel.org>2018-08-18 00:46:32 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 01:20:29 +0200
commit1a9b4b3d75679fbe8c3bb8fb7e957ea693b6a89c (patch)
treefc1bc338462e660d33b13b4a47c399e0e4ca4f42 /include/asm-generic
parentmm: provide a fallback for PAGE_KERNEL_RO for architectures (diff)
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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/asm-generic')
-rw-r--r--include/asm-generic/pgtable.h4
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