Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
[firefly-linux-kernel-4.4.55.git] / Documentation / filesystems / nilfs2.txt
index 06887d46ccf2795e8a6f46b1528e985a5ac1975b..41c3d332acc90c4be1684546c81c6fedf8278b50 100644 (file)
@@ -25,9 +25,8 @@ available from the following download page.  At least "mkfs.nilfs2",
 cleaner or garbage collector) are required.  Details on the tools are
 described in the man pages included in the package.
 
 cleaner or garbage collector) are required.  Details on the tools are
 described in the man pages included in the package.
 
-Project web page:    http://www.nilfs.org/en/
-Download page:       http://www.nilfs.org/en/download.html
-Git tree web page:   http://www.nilfs.org/git/
+Project web page:    http://nilfs.sourceforge.net/
+Download page:       http://nilfs.sourceforge.net/en/download.html
 List info:           http://vger.kernel.org/vger-lists.html#linux-nilfs
 
 Caveats
 List info:           http://vger.kernel.org/vger-lists.html#linux-nilfs
 
 Caveats
@@ -111,6 +110,13 @@ Table of NILFS2 specific ioctls
                                nilfs_resize utilities and by nilfs_cleanerd
                                daemon.
 
                                nilfs_resize utilities and by nilfs_cleanerd
                                daemon.
 
+ NILFS_IOCTL_SET_SUINFO         Modify segment usage info of requested
+                               segments. This ioctl is used by
+                               nilfs_cleanerd daemon to skip unnecessary
+                               cleaning operation of segments and reduce
+                               performance penalty or wear of flash device
+                               due to redundant move of in-use blocks.
+
  NILFS_IOCTL_GET_SUSTAT         Return segment usage statistics. This ioctl
                                is used in lssu, nilfs_resize utilities and
                                by nilfs_cleanerd daemon.
  NILFS_IOCTL_GET_SUSTAT         Return segment usage statistics. This ioctl
                                is used in lssu, nilfs_resize utilities and
                                by nilfs_cleanerd daemon.