Introduce a simple macro function for readability.

Signed-off-by: Jaegeuk Kim <jaegeuk....@samsung.com>
---
 fs/f2fs/f2fs.h  | 5 +++++
 fs/f2fs/file.c  | 2 +-
 fs/f2fs/super.c | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9182b27..6594ce1 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -887,6 +887,11 @@ static inline int cond_clear_inode_flag(struct 
f2fs_inode_info *fi, int flag)
        return 0;
 }
 
+static inline int f2fs_readonly(struct super_block *sb)
+{
+       return sb->s_flags & MS_RDONLY;
+}
+
 /*
  * file.c
  */
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9937ba1..316bcfe 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -114,7 +114,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t 
end, int datasync)
                .for_reclaim = 0,
        };
 
-       if (inode->i_sb->s_flags & MS_RDONLY)
+       if (f2fs_readonly(inode->i_sb))
                return 0;
 
        trace_f2fs_sync_file_enter(inode);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 8555f7d..3ac305d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -170,7 +170,7 @@ static int f2fs_freeze(struct super_block *sb)
 {
        int err;
 
-       if (sb->s_flags & MS_RDONLY)
+       if (f2fs_readonly(sb))
                return 0;
 
        err = f2fs_sync_fs(sb, 1);
-- 
1.8.1.3.566.gaa39828

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