libmount: add new debug messages

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/shlibs/mount/src/tab.c b/shlibs/mount/src/tab.c
index 176a7d5a73e5f176c2421e763d07b5c016daeb4d..819b11d327fb2d693d73b5162cd9659f1bb1faaa 100644 (file)
--- a/shlibs/mount/src/tab.c
+++ b/shlibs/mount/src/tab.c
@@ -228,6 +228,9 @@ int mnt_tab_get_root_fs(mnt_tab *tb, mnt_fs **root)
        if (!tb || !root)
                return -1;
 
+       DBG(DEBUG_TAB, fprintf(stderr,
+               "libmount: %s: lookup root fs\n", tb->filename));
+
        mnt_reset_iter(&itr, MNT_ITER_FORWARD);
        while(mnt_tab_next_fs(tb, &itr, &fs) == 0) {
                int id = mnt_fs_get_parent_id(fs);
@@ -263,6 +266,10 @@ int mnt_tab_next_child_fs(mnt_tab *tb, mnt_iter *itr,
        if (!tb || !itr || !parent)
                return -1;
 
+       DBG(DEBUG_TAB, fprintf(stderr,
+               "libmount: %s: lookup next child of %s\n",
+               tb->filename, mnt_fs_get_target(parent)));
+
        parent_id = mnt_fs_get_id(parent);
        if (!parent_id)
                return -1;
@@ -366,6 +373,9 @@ int mnt_tab_find_next_fs(mnt_tab *tb, mnt_iter *itr,
        if (!tb || !itr || !fs || !match_func)
                return -1;
 
+       DBG(DEBUG_TAB, fprintf(stderr,
+               "libmount: %s: lookup next fs\n", tb->filename));
+
        if (!itr->head)
                MNT_ITER_INIT(itr, &tb->ents);