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authorPavel Emelyanov <xemul@openvz.org>2007-10-19 02:40:02 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 14:53:38 -0400
commit8bf9725c29f2589237dd696d06a204230add0ba3 (patch)
treeabe1a29924a592808250121435dcd12789336e8a /kernel/exit.c
parent2e4a707269a409950c3f315010c20f9719c594e2 (diff)
pid namespaces: introduce MS_KERNMOUNT flag
This flag tells the .get_sb callback that this is a kern_mount() call so that it can trust *data pointer to be valid in-kernel one. If this flag is passed from the user process, it is cleared since the *data pointer is not a valid kernel object. Running a few steps forward - this will be needed for proc to create the superblock and store a valid pid namespace on it during the namespace creation. The reason, why the namespace cannot live without proc mount is described in the appropriate patch. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/exit.c')
0 files changed, 0 insertions, 0 deletions