From: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Subject: [RFC][PATCH 0/6] Allow unsharing pid namespace.
This patchset defines a struct pid_nr and uses this to allow
processes to unshare their pid namespace.
struct pid_nr will hold [pid value, namespace] pair for each
struct pid* in use. The pid value used will be different for
each namespace the struct pid* is in use.
A list of pid_nrs will be added to struct pid and used by the
kernel when using pid values(through pid_nr()).
[PATCH 1/6]:
Add struct pid_nr and associated helper functions.
[PATCH 2/6]:
Reimplement the pid_nr() function using struct pid_nr.
i.e pid_nr() should return the pid_t of a process
depending on the pid namespace of the caller.
[PATCH 3/6]:
Attach a list of struct pid_nrs to the struct pid.
[PATCH 4/6]:
Statically allocate/initialize a struct pid_nr for
swapper process.
[PATCH 5/6]:
Define helper functions used to unshare pid namespace.
[PATCH 6/6]:
Implement unsharing of pid namespace.
Signed-off-by: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Signed-off-by: Cedric Le Goater <[EMAIL PROTECTED]>
Cc: Dave Hansen <[EMAIL PROTECTED]>
Cc: Serge Hallyn <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
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