On Tue, 22 Nov 2011, David Daney wrote:
> From: David Daney <david.daney@xxxxxxxxxx>
>
> The file linux/hugetlb.h has many places where dummy symbols were
> defined so that the main source code would contain fewer:
>
> #ifdef CONFIG_HUGETLBFS
>
> or
>
> #ifdef CONFIG_TRANSPARENT_HUGEPAGE
>
> If there were any misuse of these symbols, the only symptom would be
> an OOPS at runtime. Change the BUG() to BUILD_BUG() to catch
> any such abuse at compile time instead.
>
> Signed-off-by: David Daney <david.daney@xxxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
> @@ -186,7 +186,7 @@ static inline void set_file_hugepages(struct file *file)
> #else /* !CONFIG_HUGETLBFS */
>
> #define is_file_hugepages(file) 0
> -#define set_file_hugepages(file) BUG()
> +#define set_file_hugepages(file) BUILD_BUG()
> static inline struct file *hugetlb_file_setup(const char *name, size_t size,
> vm_flags_t acctflag, struct user_struct **user, int creat_flags)
> {
Looks like this symbol can just be removed entirely, it's not referenced
anywhere.
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