Document the extent and huge file flags in the chattr.1.in man page

Signed-off-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/misc/chattr.1.in b/misc/chattr.1.in
index 2334675..960f058 100644 (file)
--- a/misc/chattr.1.in
+++ b/misc/chattr.1.in
@@ -73,12 +73,25 @@ set or reset using
 although it can be displayed by
 .BR lsattr (1).
 .PP
+The 'e' attribute indicates that the file is using extents for mapping
+the blocks on disk.  It may not be set or reset using
+.BR chattr (1),
+although it can be displayed by
+.BR lsattr (1).
+.PP
 The 'I' attribute is used by the htree code to indicate that a directory
 is being indexed using hashed trees.  It may not be set or reset using 
 .BR chattr (1),
 although it can be displayed by
 .BR lsattr (1).
 .PP
+The 'H' attribute indicates the file is storing its blocks in units of the
+filesystem blocksize instead of in units of sectors, and means that the file
+is (or at one time was) larger than 2TB.  It may not be set or reset using
+.BR chattr (1),
+although it can be displayed by
+.BR lsattr (1).
+.PP
 A file with the `i' attribute cannot be modified: it cannot be deleted or
 renamed, no link can be created to this file and no data can be written
 to the file.  Only the superuser or a process possessing the