-static int umountAll = FALSE;
-static int doRemount = FALSE;
-extern const char mtab_file[]; /* Defined in utility.c */
-
-
-
-/* These functions are here because the getmntent functions do not appear
- * to be re-entrant, which leads to all sorts of problems when we try to
- * use them recursively - randolph
- *
- * TODO: Perhaps switch to using Glibc's getmntent_r
- * -Erik
- */
-static void mtab_read(void)
-{
- struct _mtab_entry_t *entry = NULL;
- struct mntent *e;
- FILE *fp;
-
- if (mtab_cache != NULL)
- return;
-
- if ((fp = setmntent(mtab_file, "r")) == NULL) {
- error_msg("Cannot open %s", mtab_file);
- return;
- }
- while ((e = getmntent(fp))) {
- entry = xmalloc(sizeof(struct _mtab_entry_t));
- entry->device = strdup(e->mnt_fsname);
- entry->mountpt = strdup(e->mnt_dir);
- entry->next = mtab_cache;
- mtab_cache = entry;
- }
- endmntent(fp);
-}
-
-static char *mtab_getinfo(const char *match, const char which)
-{
- struct _mtab_entry_t *cur = mtab_cache;
-
- while (cur) {
- if (strcmp(cur->mountpt, match) == 0 ||
- strcmp(cur->device, match) == 0) {
- if (which == MTAB_GETMOUNTPT) {
- return cur->mountpt;
- } else {
-#if !defined CONFIG_FEATURE_MTAB_SUPPORT
- if (strcmp(cur->device, "/dev/root") == 0) {
- /* Adjusts device to be the real root device,
- * or leaves device alone if it can't find it */
- cur->device = find_real_root_device_name(cur->device);
- }
+/* The shared subtree stuff, which went in around 2.6.15. */
+#ifndef MS_UNBINDABLE
+# define MS_UNBINDABLE (1 << 17)
+#endif
+#ifndef MS_PRIVATE
+# define MS_PRIVATE (1 << 18)
+#endif
+#ifndef MS_SLAVE
+# define MS_SLAVE (1 << 19)
+#endif
+#ifndef MS_SHARED
+# define MS_SHARED (1 << 20)
+#endif
+#ifndef MS_RELATIME
+# define MS_RELATIME (1 << 21)
+#endif
+#include "libbb.h"
+#ifndef PATH_MAX
+# define PATH_MAX (4*1024)