fsnotify: Add is_fanotify_link helper

Will need it to dump fanotify objects.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

fsnotify.c

@@ -62,6 +62,12 @@ int is_inotify_link(int lfd)
 	return is_anon_link_type(lfd, "inotify");
 }
 
+/* Checks if file desciptor @lfd is fanotify */
+int is_fanotify_link(int lfd)
+{
+	return is_anon_link_type(lfd, "[fanotify]");
+}
+
 void show_inotify_wd(int fd_inotify_wd, struct cr_options *o)
 {
 	pb_show_plain(fd_inotify_wd, PB_INOTIFY_WD);

include/fsnotify.h

@@ -10,6 +10,7 @@
 #include "crtools.h"
 
 extern int is_inotify_link(int lfd);
+extern int is_fanotify_link(int lfd);
 extern int dump_inotify(struct fd_parms *p, int lfd, const int fdinfo);
 extern int collect_inotify(void);
 extern void show_inotify_wd(int fd_inotify_wd, struct cr_options *o);