linux-next/include/linux/hugetlb_inline.h

#ifndef _LINUX_HUGETLB_INLINE_H
#define _LINUX_HUGETLB_INLINE_H

#ifdef CONFIG_HUGETLB_PAGE

#include <linux/mm.h>

static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
{
	return !!(vma->vm_flags & VM_HUGETLB);
}

#else

static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
{
	return 0;
}

#endif

#endif
hugetlb: move definition of is_vm_hugetlb_page() to hugepage_inline.h is_vm_hugetlb_page() is a widely used inline function to insert hooks into hugetlb code. But we can't use it in pagemap.h because of circular dependency of the header files. This patch removes this limitation. Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> 2010-05-28 08:29:15 +08:00			`#ifndef _LINUX_HUGETLB_INLINE_H`
hwpoison: rename CONFIG CONFIG_HUGETLBFS controls hugetlbfs interface code. OTOH, CONFIG_HUGETLB_PAGE controls hugepage management code. So we should use CONFIG_HUGETLB_PAGE here. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> 2010-06-15 12:18:13 +08:00			`#define _LINUX_HUGETLB_INLINE_H`
hugetlb: move definition of is_vm_hugetlb_page() to hugepage_inline.h is_vm_hugetlb_page() is a widely used inline function to insert hooks into hugetlb code. But we can't use it in pagemap.h because of circular dependency of the header files. This patch removes this limitation. Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> 2010-05-28 08:29:15 +08:00
hwpoison: rename CONFIG CONFIG_HUGETLBFS controls hugetlbfs interface code. OTOH, CONFIG_HUGETLB_PAGE controls hugepage management code. So we should use CONFIG_HUGETLB_PAGE here. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> 2010-06-15 12:18:13 +08:00			`#ifdef CONFIG_HUGETLB_PAGE`
hugetlb: move definition of is_vm_hugetlb_page() to hugepage_inline.h is_vm_hugetlb_page() is a widely used inline function to insert hooks into hugetlb code. But we can't use it in pagemap.h because of circular dependency of the header files. This patch removes this limitation. Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> 2010-05-28 08:29:15 +08:00
			`#include <linux/mm.h>`

			`static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)`
			`{`
mm: don't access vm_flags as 'int' The type of vma->vm_flags is 'unsigned long'. Neither 'int' nor 'unsigned int'. This patch fixes such misuse. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> [ Changed to use a typedef - we'll extend it to cover more cases later, since there has been discussion about making it a 64-bit type.. - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2011-05-26 18:16:19 +08:00			`return !!(vma->vm_flags & VM_HUGETLB);`
hugetlb: move definition of is_vm_hugetlb_page() to hugepage_inline.h is_vm_hugetlb_page() is a widely used inline function to insert hooks into hugetlb code. But we can't use it in pagemap.h because of circular dependency of the header files. This patch removes this limitation. Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> 2010-05-28 08:29:15 +08:00			`}`

			`#else`

			`static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)`
			`{`
			`return 0;`
			`}`

			`#endif`

			`#endif`