HelenOS sources

VFS_MOUNT_CONNECT_ONLY  182 uspace/lib/c/include/ipc/vfs.h 	VFS_MOUNT_CONNECT_ONLY = 2,
VFS_MOUNT_CONNECT_ONLY  182 uspace/lib/posix/include/libc/ipc/vfs.h 	VFS_MOUNT_CONNECT_ONLY = 2,
HelenOS homepage, sources at GitHub