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| author | Richard W.M. Jones <rjones@redhat.com> | 2009-05-14 23:47:17 +0100 |
|---|---|---|
| committer | Richard W.M. Jones <rjones@redhat.com> | 2009-05-14 23:47:17 +0100 |
| commit | d901cc916102f1aaccfb73396b48aa303e5b8cd7 (patch) | |
| tree | 7c2fd470088874ab99b5922393327170e653cf01 /perl | |
| parent | 4aa4ecc380edc509aba886417c67d9c39ab51c9a (diff) | |
| download | libguestfs-d901cc916102f1aaccfb73396b48aa303e5b8cd7.tar.gz libguestfs-d901cc916102f1aaccfb73396b48aa303e5b8cd7.tar.xz libguestfs-d901cc916102f1aaccfb73396b48aa303e5b8cd7.zip | |
Add support for zerofree command.
Diffstat (limited to 'perl')
| -rw-r--r-- | perl/Guestfs.xs | 11 | ||||
| -rw-r--r-- | perl/lib/Sys/Guestfs.pm | 13 |
2 files changed, 24 insertions, 0 deletions
diff --git a/perl/Guestfs.xs b/perl/Guestfs.xs index 973f56e5..e87131bd 100644 --- a/perl/Guestfs.xs +++ b/perl/Guestfs.xs @@ -1787,3 +1787,14 @@ PREINIT: OUTPUT: RETVAL +void +zerofree (g, device) + guestfs_h *g; + char *device; +PREINIT: + int r; + PPCODE: + r = guestfs_zerofree (g, device); + if (r == -1) + croak ("zerofree: %s", guestfs_last_error (g)); + diff --git a/perl/lib/Sys/Guestfs.pm b/perl/lib/Sys/Guestfs.pm index 13c084f7..b11594f2 100644 --- a/perl/lib/Sys/Guestfs.pm +++ b/perl/lib/Sys/Guestfs.pm @@ -1162,6 +1162,19 @@ 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. +=item $h->zerofree ($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. + =cut 1; |