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Subject[PATCH 5/5] mm/mempolicy: vma_migratable can be boolean
Date
This patch makes vma_migratable return bool due to this
particular function only using either one or zero as its return
value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
---
include/linux/mempolicy.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 2696c1f..6978a99 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -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);

/* 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))
- return 0;
+ return false;

#ifndef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
if (vma->vm_flags & VM_HUGETLB)
- return 0;
+ return false;
#endif

/*
@@ -190,8 +190,8 @@ static inline int vma_migratable(struct vm_area_struct *vma)
if (vma->vm_file &&
gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping))
< policy_zone)
- return 0;
- return 1;
+ return false;
+ return true;
}

extern int mpol_misplaced(struct page *, struct vm_area_struct *, unsigned long);
--
1.9.1


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