X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=guestfs-actions.pod;h=109c73eadb5a76bcc111e5cbf9b52f869e225e23;hb=b8e5f51c79f539a740827506cc9da3ffcb6c87f8;hp=53bfa54e1e155686b0cb4e1fd9015f0983206305;hpb=5d628a4a9cc11eb9a61a1dc683aadca9ac378736;p=libguestfs.git

diff --git a/guestfs-actions.pod b/guestfs-actions.pod
index 53bfa54..109c73e 100644
--- a/guestfs-actions.pod
+++ b/guestfs-actions.pod
@@ -1747,3 +1747,21 @@ any partition tables, filesystem superblocks and so on.
 
 This function returns 0 on success or -1 on error.
 
+=head2 guestfs_zerofree
+
+ int guestfs_zerofree (guestfs_h *handle,
+		const char *device);
+
+This runs the I<zerofree> program on C<device>.  This program
+claims to zero unused inodes and disk blocks on an ext2/3
+filesystem, thus making it possible to compress the filesystem
+more effectively.
+
+You should B<not> run this program if the filesystem is
+mounted.
+
+It is possible that using this program can damage the filesystem
+or data on the filesystem.
+
+This function returns 0 on success or -1 on error.
+