X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=guestfs-actions.pod;fp=guestfs-actions.pod;h=b3daa0549ef9e8f648e3c1c163f157eceaf77fbd;hb=9222136ac9b2e404dba128b1ac74dacaa8bf1038;hp=1cd4701e255d89af3070bdea2b2b75e300c2f6ca;hpb=2dc9e8a858b62830d15a8186fe575eb7903d2171;p=libguestfs.git

diff --git a/guestfs-actions.pod b/guestfs-actions.pod
index 1cd4701..b3daa05 100644
--- a/guestfs-actions.pod
+++ b/guestfs-actions.pod
@@ -576,6 +576,23 @@ See also C<guestfs_upload>, C<guestfs_cat>.
 
 This function returns 0 on success or -1 on error.
 
+=head2 guestfs_drop_caches
+
+ int guestfs_drop_caches (guestfs_h *handle,
+		int whattodrop);
+
+This instructs the guest kernel to drop its page cache,
+and/or dentries and inode caches.  The parameter C<whattodrop>
+tells the kernel what precisely to drop, see
+L<http://linux-mm.org/Drop_Caches>
+
+Setting C<whattodrop> to 3 should drop everything.
+
+This automatically calls L<sync(2)> before the operation,
+so that the maximum guest memory is freed.
+
+This function returns 0 on success or -1 on error.
+
 =head2 guestfs_exists
 
  int guestfs_exists (guestfs_h *handle,