man pages: Add a standard EXIT STATUS section to most pages.

[libguestfs.git] / generator / generator_actions.ml

diff --git a/generator/generator_actions.ml b/generator/generator_actions.ml
index ccfecdd..1186c33 100644 (file)
--- a/generator/generator_actions.ml
+++ b/generator/generator_actions.ml
@@ -3006,6 +3006,10 @@ How many blocks are zeroed isn't specified (but it's I<not> enough
 to securely wipe the device).  It should be sufficient to remove
 any partition tables, filesystem superblocks and so on.
 
 to securely wipe the device).  It should be sufficient to remove
 any partition tables, filesystem superblocks and so on.
 

+If blocks are already zero, then this command avoids writing
+zeroes.  This prevents the underlying device from becoming non-sparse
+or growing unnecessarily.
+

 See also: C<guestfs_zero_device>, C<guestfs_scrub_device>,
 C<guestfs_is_zero_device>");
 
 See also: C<guestfs_zero_device>, C<guestfs_scrub_device>,
 C<guestfs_is_zero_device>");
 


@@ -5229,7 +5233,11 @@ is not large enough.");
    "\
 This command writes zeroes over the entire C<device>.  Compare
 with C<guestfs_zero> which just zeroes the first few blocks of
    "\
 This command writes zeroes over the entire C<device>.  Compare
 with C<guestfs_zero> which just zeroes the first few blocks of

-a device.");
+a device.
+
+If blocks are already zero, then this command avoids writing
+zeroes.  This prevents the underlying device from becoming non-sparse
+or growing unnecessarily.");

 
   ("txz_in", (RErr, [FileIn "tarball"; Pathname "directory"], []), 229, [Optional "xz"],
    [InitScratchFS, Always, TestOutput (
 
   ("txz_in", (RErr, [FileIn "tarball"; Pathname "directory"], []), 229, [Optional "xz"],
    [InitScratchFS, Always, TestOutput (