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hugetlb_file_setup(): use C, not cpp

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Why macros are always wrong:

  mm/mmap.c: In function 'do_mmap_pgoff':
  mm/mmap.c:953: warning: unused variable 'user'

also, move a couple of struct forward-decls outside `#ifdef
CONFIG_HUGETLB_PAGE' - it's pointless and frequently harmful to make these
conditional (eg, this patch needed `struct user_struct').

Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Adam Litke <agl@us.ibm.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Eric Whitney <eric.whitney@hp.com>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2009-09-24 14:47:45 -07:00 committed by Linus Torvalds
parent c44972f178
commit e9ea0e2d1d
1 changed files with 8 additions and 4 deletions
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12
include/linux/hugetlb.h
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@ -3,15 +3,15 @@
#include <linux/fs.h>
struct ctl_table;
struct user_struct;
#ifdef CONFIG_HUGETLB_PAGE
#include <linux/mempolicy.h>
#include <linux/shm.h>
#include <asm/tlbflush.h>
struct ctl_table;
struct user_struct;
int PageHuge(struct page *page);
static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
@ -187,7 +187,11 @@ static inline void set_file_hugepages(struct file *file)
#define is_file_hugepages(file) 0
#define set_file_hugepages(file) BUG()
#define hugetlb_file_setup(name,size,acct,user,creat) ERR_PTR(-ENOSYS)
static inline struct file *hugetlb_file_setup(const char *name, size_t size,
int acctflag, struct user_struct **user, int creat_flags)
{
return ERR_PTR(-ENOSYS);
}
#endif /* !CONFIG_HUGETLBFS */