Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

[safe/jmp/linux-2.6] / include / linux / ext3_fs.h

diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 9004794..dd495b8 100644 (file)
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -178,6 +178,30 @@ struct ext3_group_desc
 #define EXT3_FL_USER_VISIBLE           0x0003DFFF /* User visible flags */
 #define EXT3_FL_USER_MODIFIABLE                0x000380FF /* User modifiable flags */
 
+/* Flags that should be inherited by new inodes from their parent. */
+#define EXT3_FL_INHERITED (EXT3_SECRM_FL | EXT3_UNRM_FL | EXT3_COMPR_FL |\
+                          EXT3_SYNC_FL | EXT3_IMMUTABLE_FL | EXT3_APPEND_FL |\
+                          EXT3_NODUMP_FL | EXT3_NOATIME_FL | EXT3_COMPRBLK_FL|\
+                          EXT3_NOCOMPR_FL | EXT3_JOURNAL_DATA_FL |\
+                          EXT3_NOTAIL_FL | EXT3_DIRSYNC_FL)
+
+/* Flags that are appropriate for regular files (all but dir-specific ones). */
+#define EXT3_REG_FLMASK (~(EXT3_DIRSYNC_FL | EXT3_TOPDIR_FL))
+
+/* Flags that are appropriate for non-directories/regular files. */
+#define EXT3_OTHER_FLMASK (EXT3_NODUMP_FL | EXT3_NOATIME_FL)
+
+/* Mask out flags that are inappropriate for the given type of inode. */
+static inline __u32 ext3_mask_flags(umode_t mode, __u32 flags)
+{
+       if (S_ISDIR(mode))
+               return flags;
+       else if (S_ISREG(mode))
+               return flags & EXT3_REG_FLMASK;
+       else
+               return flags & EXT3_OTHER_FLMASK;
+}
+
 /*
  * Inode dynamic state flags
  */