Eric W. Biederman 8823c079ba vfs: Add setns support for the mount namespace ... setns support for the mount namespace is a little tricky as an arbitrary decision must be made about what to set fs->root and fs->pwd to, as there is no expectation of a relationship between the two mount namespaces. Therefore I arbitrarily find the root mount point, and follow every mount on top of it to find the top of the mount stack. Then I set fs->root and fs->pwd to that location. The topmost root of the mount stack seems like a reasonable place to be. Bind mount support for the mount namespace inodes has the possibility of creating circular dependencies between mount namespaces. Circular dependencies can result in loops that prevent mount namespaces from every being freed. I avoid creating those circular dependencies by adding a sequence number to the mount namespace and require all bind mounts be of a younger mount namespace into an older mount namespace. Add a helper function proc_ns_inode so it is possible to detect when we are attempting to bind mound a namespace inode. Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>		2012-11-19 05:59:18 -08:00
..
array.c	c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat	2012-05-31 17:49:32 -07:00
base.c	pidns: Make the pidns proc mount/umount logic obvious.	2012-11-19 05:59:10 -08:00
cmdline.c
consoles.c
cpuinfo.c
devices.c
fd.c	don't leak O_CLOEXEC into ->f_flags	2012-09-26 21:10:01 -04:00
fd.h	procfs: Move /proc/pid/fd[info] handling code to fd.[ch]	2012-09-26 21:10:01 -04:00
generic.c	proc: use kzalloc instead of kmalloc and memset	2012-10-06 03:05:18 +09:00
inode.c	proc: no need to initialize proc_inode->fd in proc_get_inode()	2012-10-06 03:05:18 +09:00
internal.h	procfs: Use the proc generic infrastructure for proc/self.	2012-11-19 03:09:34 -08:00
interrupts.c
Kconfig
kcore.c	fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static	2012-03-23 16:58:42 -07:00
kmsg.c
loadavg.c
Makefile	procfs: Use the proc generic infrastructure for proc/self.	2012-11-19 03:09:34 -08:00
meminfo.c
mmu.c
namespaces.c	vfs: Add setns support for the mount namespace	2012-11-19 05:59:18 -08:00
nommu.c
page.c	kpageflags: fix wrong KPF_THP on non-huge compound pages	2012-10-09 16:23:00 +09:00
proc_devtree.c	of: Improve prom_update_property() function	2012-07-11 15:26:51 +10:00
proc_net.c	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
proc_sysctl.c	rbtree: fix incorrect rbtree node insertion in fs/proc/proc_sysctl.c	2012-10-09 16:22:32 +09:00
proc_tty.c
root.c	pidns: Make the pidns proc mount/umount logic obvious.	2012-11-19 05:59:10 -08:00
self.c	procfs: Use the proc generic infrastructure for proc/self.	2012-11-19 03:09:34 -08:00
softirqs.c
stat.c	nohz: Fix idle ticks in cpu summary line of /proc/stat	2012-10-10 14:05:21 +02:00
task_mmu.c	hold task->mempolicy while numa_maps scans.	2012-10-19 14:32:10 -07:00
task_nommu.c	proc: remove mm_for_maps()	2012-05-31 17:49:28 -07:00
uptime.c
version.c
vmcore.c	fadump: Introduce cleanup routine to invalidate /proc/vmcore.	2012-02-23 10:50:02 +11:00