diff options
| author |   Eric W. Biederman <ebiederm@xmission.com> | 2006-10-02 02:17:12 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-02 07:57:13 -0700 |
| commit | 5feb8f5f8403d8874a04aac443692dfe83bd63d2 (patch) | |
| tree | 8dc23051350f9a4bd22c3172dc570e96e73f3e50 /include/linux/pid.h | |
| parent | [PATCH] pid: export the symbols needed to use struct pid * (diff) | |
| download | linux-dev-5feb8f5f8403d8874a04aac443692dfe83bd63d2.tar.xz linux-dev-5feb8f5f8403d8874a04aac443692dfe83bd63d2.zip | |
[PATCH] pid: implement pid_nr
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@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/pid.h')
| -rw-r--r-- | 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 8cf9b11ed264..dba1b2d677a3 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -94,6 +94,14 @@ extern struct pid *find_ge_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) |