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mm/mempolicy.c: vma_migratable() can return bool

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Make vma_migratable() return bool due to this particular function only
using either one or zero as its return value.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yaowei Bai
2016-05-19 17:11:32 -07:00
committed by Linus Torvalds
parent bb00a789e5
commit 4ee815be1d
1 changed files with 5 additions and 5 deletions
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10
include/linux/mempolicy.h
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@@ -172,14 +172,14 @@ extern int mpol_parse_str(char *str, struct mempolicy **mpol);
extern void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol); extern void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
/* Check if a vma is migratable */ /* Check if a vma is migratable */
static inline int vma_migratable(struct vm_area_struct *vma) static inline bool vma_migratable(struct vm_area_struct *vma)
{ {
if (vma->vm_flags & (VM_IO | VM_PFNMAP)) if (vma->vm_flags & (VM_IO | VM_PFNMAP))
return 0; return false;
#ifndef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION #ifndef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
if (vma->vm_flags & VM_HUGETLB) if (vma->vm_flags & VM_HUGETLB)
return 0; return false;
#endif #endif
/* /*
@@ -190,8 +190,8 @@ static inline int vma_migratable(struct vm_area_struct *vma)
if (vma->vm_file && if (vma->vm_file &&
gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping)) gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping))
< policy_zone) < policy_zone)
return 0; return false;
return 1; return true;
} }
extern int mpol_misplaced(struct page *, struct vm_area_struct *, unsigned long); extern int mpol_misplaced(struct page *, struct vm_area_struct *, unsigned long);