f2fs: add f2fs_readonly()

Introduce a simple macro function for readability.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

3 files changed, 7 insertions, 2 deletions

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9182b2710db7..6594ce15a7bb 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 9937ba1a4d24..316bcfe80448 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 8555f7df82c7..3ac305da7cee 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);