Eric W. Biederman a2982cc922 vfs: Generalize filesystem nodev handling. ... Introduce a function may_open_dev that tests MNT_NODEV and a new superblock flab SB_I_NODEV. Use this new function in all of the places where MNT_NODEV was previously tested. Add the new SB_I_NODEV s_iflag to proc, sysfs, and mqueuefs as those filesystems should never support device nodes, and a simple superblock flags makes that very hard to get wrong. With SB_I_NODEV set if any device nodes somehow manage to show up on on a filesystem those device nodes will be unopenable. Acked-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>		2016-06-23 15:41:57 -05:00
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compat_mq.c	ipc, kernel: use Linux headers	2014-06-06 16:08:14 -07:00
compat.c	ipc: resolve shadow warnings	2014-10-14 02:18:23 +02:00
ipc_sysctl.c	ipc/msg: increase MSGMNI, remove scaling	2014-12-13 12:42:52 -08:00
Makefile	ipc/msg: increase MSGMNI, remove scaling	2014-12-13 12:42:52 -08:00
mq_sysctl.c	ipc: convert use of typedef ctl_table to struct ctl_table	2014-06-06 16:08:16 -07:00
mqueue.c	vfs: Generalize filesystem nodev handling.	2016-06-23 15:41:57 -05:00
msg.c	Initialize msg/shm IPC objects before doing ipc_addid()	2015-09-30 12:48:40 -04:00
msgutil.c	ipc,msg: drop dst nil validation in copy_msg	2015-11-06 17:50:42 -08:00
namespace.c	ipc: Initialize ipc_namespace->user_ns early.	2016-06-23 15:41:53 -05:00
sem.c	ipc/sem: make semctl setting sempid consistent	2016-03-22 15:36:02 -07:00
shm.c	ipc, shm: make shmem attach/detach wait for mmap_sem killable	2016-05-23 17:04:14 -07:00
syscall.c	get rid of union semop in sys_semctl(2) arguments	2013-03-05 15:14:16 -05:00
util.c	tree wide: use kvfree() than conditional kfree()/vfree()	2016-01-22 17:02:18 -08:00
util.h	tree wide: use kvfree() than conditional kfree()/vfree()	2016-01-22 17:02:18 -08:00