[patch 068/127] mm: use false for bool variable

[Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>]

From: Zou Wei <zou_wei@xxxxxxxxxx>
Subject: mm: use false for bool variable

Fixes coccicheck warning:

mm/zbud.c:246:1-20: WARNING: Assignment of 0/1 to bool variable
mm/mremap.c:777:2-8: WARNING: Assignment of 0/1 to bool variable
mm/huge_memory.c:525:9-10: WARNING: return of 0/1 in function
'is_transparent_hugepage' with return type bool

Link: http://lkml.kernel.org/r/1586835930-47076-1-git-send-email-zou_wei@xxxxxxxxxx
Signed-off-by: Zou Wei <zou_wei@xxxxxxxxxx>
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/huge_memory.c |    2 +-
 mm/mremap.c      |    2 +-
 mm/zbud.c        |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

--- a/mm/huge_memory.c~mm-use-false-for-bool-variable
+++ a/mm/huge_memory.c
@@ -522,7 +522,7 @@ void prep_transhuge_page(struct page *pa
 bool is_transparent_hugepage(struct page *page)
 {
 	if (!PageCompound(page))
-		return 0;
+		return false;
 
 	page = compound_head(page);
 	return is_huge_zero_page(page) ||
--- a/mm/mremap.c~mm-use-false-for-bool-variable
+++ a/mm/mremap.c
@@ -785,7 +785,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, a
 out:
 	if (offset_in_page(ret)) {
 		vm_unacct_memory(charged);
-		locked = 0;
+		locked = false;
 	}
 	if (downgraded)
 		up_read(&current->mm->mmap_sem);
--- a/mm/zbud.c~mm-use-false-for-bool-variable
+++ a/mm/zbud.c
@@ -243,7 +243,7 @@ static struct zbud_header *init_zbud_pag
 	zhdr->last_chunks = 0;
 	INIT_LIST_HEAD(&zhdr->buddy);
 	INIT_LIST_HEAD(&zhdr->lru);
-	zhdr->under_reclaim = 0;
+	zhdr->under_reclaim = false;
 	return zhdr;
 }
 
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