commit 74c046400677505aebe9686f111f147c2855cde0
author Jeff Sharkey <jsharkey@android.com> Sat Aug 11 14:12:26 2012 -0700
committer Elliott Hughes <enh@google.com> Tue Aug 14 12:09:25 2012 -0700
tree cee7dc40409ef2c468098369a1ee2b1606902cfd
parent b9c6854cd9d5286f991aec66be3a8a57f5e3e7be

Update MS_ mount flags, define unshare() syscall.

(cherry-pick of 82393decdfc6b0383054fb5d2f54725bbee88b8c.)

Bug: 6925012
Change-Id: I4f962d8975ad62ff4b9983150f9e481796092b9d

libc/include/sched.h

diff --git a/libc/include/sched.h b/libc/include/sched.h
index ca72da7..4d7d8c6 100644
--- a/libc/include/sched.h
+++ b/libc/include/sched.h
@@ -71,6 +71,7 @@
 
 #ifdef _GNU_SOURCE
 extern int clone(int (*fn)(void *), void *child_stack, int flags, void*  arg, ...);
+extern int unshare(int);
 #endif
 
 /* Support for cpu thread affinity */

libc/include/sys/mount.h

diff --git a/libc/include/sys/mount.h b/libc/include/sys/mount.h
index ba88447..207527e 100644
--- a/libc/include/sys/mount.h
+++ b/libc/include/sys/mount.h
@@ -51,7 +51,10 @@
 #define MS_REC          16384
 #define MS_VERBOSE      32768
 #define MS_POSIXACL     (1<<16) /* VFS does not apply the umask */
-#define MS_ONE_SECOND   (1<<17) /* fs has 1 sec a/m/ctime resolution */
+#define MS_UNBINDABLE   (1<<17) /* change to unbindable */
+#define MS_PRIVATE      (1<<18) /* change to private */
+#define MS_SLAVE        (1<<19) /* change to slave */
+#define MS_SHARED       (1<<20) /* change to shared */
 #define MS_ACTIVE       (1<<30)
 #define MS_NOUSER       (1<<31)