Andi,

> +#define MAP_HUGE_2MB    (21 << MAP_HUGE_SHIFT)
> +#define MAP_HUGE_1GB    (30 << MAP_HUGE_SHIFT)
> +#define SHM_HUGE_SHIFT  26
> +#define SHM_HUGE_MASK   0x3f
> +#define SHM_HUGE_2MB    (21 << SHM_HUGE_SHIFT)
> +#define SHM_HUGE_1GB    (30 << SHM_HUGE_SHIFT)

Maybe I am missing something obvious, but does this not conflict with
include/uapi/asm-generic/mman-common.h:

#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
# define MAP_UNINITIALIZED 0x4000000
...

0x4000000 == (1 << 26)
?

Thanks,

Michael

-- 
Michael Kerrisk Linux man-pages maintainer;
http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface", http://blog.man7.org/
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