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| author | Pavel Emelyanov <[email protected]> | 2007-10-19 06:40:02 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2007-10-19 18:53:38 +0000 |
| commit | 8bf9725c29f2589237dd696d06a204230add0ba3 (patch) | |
| tree | abe1a29924a592808250121435dcd12789336e8a /fs/proc/root.c | |
| parent | pid namespaces: move exit_task_namespaces() (diff) | |
| download | kernel-8bf9725c29f2589237dd696d06a204230add0ba3.tar.gz kernel-8bf9725c29f2589237dd696d06a204230add0ba3.zip | |
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 <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Cc: Paul Menage <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'fs/proc/root.c')
0 files changed, 0 insertions, 0 deletions