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-rw-r--r--include/linux/fs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7b5d6816542b..6ae137c1bdf6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1844,7 +1844,8 @@ struct super_operations {
*/
#define __IS_FLG(inode, flg) ((inode)->i_sb->s_flags & (flg))
-#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY)
+static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & MS_RDONLY; }
+#define IS_RDONLY(inode) sb_rdonly((inode)->i_sb)
#define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \
((inode)->i_flags & S_SYNC))
#define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \