1 files changed, 17 insertions, 0 deletions

diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 777e8fd04304..3e3acb1fdd2f 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -212,6 +212,23 @@ static inline int nilfs_init_acl(struct inode *inode, struct inode *dir)
 
 #define NILFS_ATIME_DISABLE
 
+/* Flags that should be inherited by new inodes from their parent. */
+#define NILFS_FL_INHERITED                                              \
+        (FS_SECRM_FL | FS_UNRM_FL | FS_COMPR_FL | FS_SYNC_FL |          \
+         FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NODUMP_FL | FS_NOATIME_FL |\
+         FS_COMPRBLK_FL | FS_NOCOMP_FL | FS_NOTAIL_FL | FS_DIRSYNC_FL)
+
+/* Mask out flags that are inappropriate for the given type of inode. */
+static inline __u32 nilfs_mask_flags(umode_t mode, __u32 flags)
+{
+        if (S_ISDIR(mode))
+                return flags;
+        else if (S_ISREG(mode))
+                return flags & ~(FS_DIRSYNC_FL | FS_TOPDIR_FL);
+        else
+                return flags & (FS_NODUMP_FL | FS_NOATIME_FL);
+}
+
 /* dir.c */
 extern int nilfs_add_link(struct dentry *, struct inode *);
 extern ino_t nilfs_inode_by_name(struct inode *, const struct qstr *);