Reduced the lookup entry_timeout to 0

This prevents lookup results from getting  cached in the VFS so the
kernel does not respond to another process with incorrectly cached
dentries.

Test:  atest -c android.appsecurity.cts.ExternalStorageHostTest#testSecondaryUsersInaccessible
Bug: 135341433
Change-Id: I5f9b5d7fc05b77df44f74997672f0036e133b5ab
1 file changed