As we stop storing pid_t's and move to storing struct pid *. We
need a way to get the pid_t from the struct pid to report to user
space what we have stored.
Having a clean well defined way to do this is especially important
as we move to multiple pid spaces as may need to report a different
value to the caller depending on which pid space the caller is in.
Signed-off-by: Eric W. Biederman <ebiederm at xmission.com>
---
include/linux/pid.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 4007114..9fd547f 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -93,6 +93,14 @@ extern struct pid *find_get_pid(int nr);
extern struct pid *alloc_pid(void);
extern void FASTCALL(free_pid(struct pid *pid));
+static inline pid_t pid_nr(struct pid *pid)
+{
+ pid_t nr = 0;
+ if (pid)
+ nr = pid->nr;
+ return nr;
+}
+
#define pid_next(task, type) \
((task)->pids[(type)].node.next)
--
1.4.2.rc3.g7e18e-dirty
