[PATCH] mm/msync.c cleanup

This is not problem actually, but sync_page_range() is using for exported
function to filesystems.

The msync_xxx is more readable at least to me.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

mm/msync.c

@@ -22,7 +22,7 @@
  * threads/the swapper from ripping pte's out from under us.
  */
 
-static void sync_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
+static void msync_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 				unsigned long addr, unsigned long end)
 {
 	pte_t *pte;
@@ -50,7 +50,7 @@ static void sync_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	pte_unmap(pte - 1);
 }
 
-static inline void sync_pmd_range(struct vm_area_struct *vma, pud_t *pud,
+static inline void msync_pmd_range(struct vm_area_struct *vma, pud_t *pud,
 				unsigned long addr, unsigned long end)
 {
 	pmd_t *pmd;
@@ -61,11 +61,11 @@ static inline void sync_pmd_range(struct vm_area_struct *vma, pud_t *pud,
 		next = pmd_addr_end(addr, end);
 		if (pmd_none_or_clear_bad(pmd))
 			continue;
-		sync_pte_range(vma, pmd, addr, next);
+		msync_pte_range(vma, pmd, addr, next);
 	} while (pmd++, addr = next, addr != end);
 }
 
-static inline void sync_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
+static inline void msync_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
 				unsigned long addr, unsigned long end)
 {
 	pud_t *pud;
@@ -76,11 +76,11 @@ static inline void sync_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
 		next = pud_addr_end(addr, end);
 		if (pud_none_or_clear_bad(pud))
 			continue;
-		sync_pmd_range(vma, pud, addr, next);
+		msync_pmd_range(vma, pud, addr, next);
 	} while (pud++, addr = next, addr != end);
 }
 
-static void sync_page_range(struct vm_area_struct *vma,
+static void msync_page_range(struct vm_area_struct *vma,
 				unsigned long addr, unsigned long end)
 {
 	struct mm_struct *mm = vma->vm_mm;
@@ -101,13 +101,13 @@ static void sync_page_range(struct vm_area_struct *vma,
 		next = pgd_addr_end(addr, end);
 		if (pgd_none_or_clear_bad(pgd))
 			continue;
-		sync_pud_range(vma, pgd, addr, next);
+		msync_pud_range(vma, pgd, addr, next);
 	} while (pgd++, addr = next, addr != end);
 	spin_unlock(&mm->page_table_lock);
 }
 
 #ifdef CONFIG_PREEMPT
-static inline void filemap_sync(struct vm_area_struct *vma,
+static inline void filemap_msync(struct vm_area_struct *vma,
 				 unsigned long addr, unsigned long end)
 {
 	const size_t chunk = 64 * 1024;	/* bytes */
@@ -117,15 +117,15 @@ static inline void filemap_sync(struct vm_area_struct *vma,
 		next = addr + chunk;
 		if (next > end || next < addr)
 			next = end;
-		sync_page_range(vma, addr, next);
+		msync_page_range(vma, addr, next);
 		cond_resched();
 	} while (addr = next, addr != end);
 }
 #else
-static inline void filemap_sync(struct vm_area_struct *vma,
+static inline void filemap_msync(struct vm_area_struct *vma,
 				 unsigned long addr, unsigned long end)
 {
-	sync_page_range(vma, addr, end);
+	msync_page_range(vma, addr, end);
 }
 #endif
 
@@ -150,7 +150,7 @@ static int msync_interval(struct vm_area_struct *vma,
 		return -EBUSY;
 
 	if (file && (vma->vm_flags & VM_SHARED)) {
-		filemap_sync(vma, addr, end);
+		filemap_msync(vma, addr, end);
 
 		if (flags & MS_SYNC) {
 			struct address_space *mapping = file->f_mapping;