[PATCH] mm: Optimize the statement to make it clearer

From: XU pengfei
Date: Thu May 12 2022 - 22:58:06 EST


From: Xu Pengfei <xupengfei@xxxxxxxxxxxx>

Optimize the statement to make it clearer

Signed-off-by: Xu Pengfei <xupengfei@xxxxxxxxxxxx>
---
mm/filemap.c | 4 ++--
mm/mmap.c | 6 +++---
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index 9a1eef6c5d35..f6b2b915052a 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1374,9 +1374,9 @@ static inline int folio_wait_bit_common(struct folio *folio, int bit_nr,
* waiter, but an exclusive one requires WQ_FLAG_DONE.
*/
if (behavior == EXCLUSIVE)
- return wait->flags & WQ_FLAG_DONE ? 0 : -EINTR;
+ return (wait->flags & WQ_FLAG_DONE) ? 0 : -EINTR;

- return wait->flags & WQ_FLAG_WOKEN ? 0 : -EINTR;
+ return (wait->flags & WQ_FLAG_WOKEN) ? 0 : -EINTR;
}

#ifdef CONFIG_MIGRATION
diff --git a/mm/mmap.c b/mm/mmap.c
index 3aa839f81e63..28196b93515a 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2975,9 +2975,9 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
goto out;
}

- prot |= vma->vm_flags & VM_READ ? PROT_READ : 0;
- prot |= vma->vm_flags & VM_WRITE ? PROT_WRITE : 0;
- prot |= vma->vm_flags & VM_EXEC ? PROT_EXEC : 0;
+ prot |= (vma->vm_flags & VM_READ) ? PROT_READ : 0;
+ prot |= (vma->vm_flags & VM_WRITE) ? PROT_WRITE : 0;
+ prot |= (vma->vm_flags & VM_EXEC) ? PROT_EXEC : 0;

flags &= MAP_NONBLOCK;
flags |= MAP_SHARED | MAP_FIXED | MAP_POPULATE;
--
2.18.2