X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=Documentation%2Ffilesystems%2Fext4%2Fsuper.rst;h=f6a548e957bb9283ae97ad52f0a268e5255cea54;hp=2eb1ab20498dd40afaa34c68b11b9db89962b813;hb=a2d616b935a0df24bc9375785b19bf30d7fc9c6a;hpb=2c87f7a38f930ef6f6a7bdd04aeb82ce3971b54b

diff --git a/Documentation/filesystems/ext4/super.rst b/Documentation/filesystems/ext4/super.rst
index 2eb1ab20498d..f6a548e957bb 100644
--- a/Documentation/filesystems/ext4/super.rst
+++ b/Documentation/filesystems/ext4/super.rst
@@ -479,7 +479,11 @@ The ext4 superblock is laid out as follows in
      - Filename charset encoding flags.
    * - 0x280
      - \_\_le32
-     - s\_reserved[95]
+     - s\_orphan\_file\_inum
+     - Orphan file inode number.
+   * - 0x284
+     - \_\_le32
+     - s\_reserved[94]
      - Padding to the end of the block.
    * - 0x3FC
      - \_\_le32
@@ -603,6 +607,11 @@ following:
        the journal, JBD2 incompat feature
        (JBD2\_FEATURE\_INCOMPAT\_FAST\_COMMIT) gets
        set (COMPAT\_FAST\_COMMIT).
+   * - 0x1000
+     - Orphan file allocated. This is the special file for more efficient
+       tracking of unlinked but still open inodes. When there may be any
+       entries in the file, we additionally set proper rocompat feature
+       (RO\_COMPAT\_ORPHAN\_PRESENT).
 
 .. _super_incompat:
 
@@ -713,6 +722,10 @@ the following:
      - Filesystem tracks project quotas. (RO\_COMPAT\_PROJECT)
    * - 0x8000
      - Verity inodes may be present on the filesystem. (RO\_COMPAT\_VERITY)
+   * - 0x10000
+     - Indicates orphan file may have valid orphan entries and thus we need
+       to clean them up when mounting the filesystem
+       (RO\_COMPAT\_ORPHAN\_PRESENT).
 
 .. _super_def_hash: