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| author |   Pavel Emelyanov <xemul@openvz.org> | 2007-10-18 23:40:16 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-19 11:53:40 -0700 |
| commit | 228ebcbe634a30aec35132ea4375721bcc41bec0 (patch) | |
| tree | a875976fd5bde6e2f931aa235c34c88a2738493f /include/linux/sched.h | |
| parent | pid namespaces: changes to show virtual ids to user (diff) | |
| download | linux-dev-228ebcbe634a30aec35132ea4375721bcc41bec0.tar.xz linux-dev-228ebcbe634a30aec35132ea4375721bcc41bec0.zip | |
Uninline find_task_by_xxx set of functions
The find_task_by_something is a set of macros are used to find task by pid
depending on what kind of pid is proposed - global or virtual one. All of
them are wrappers above the most generic one - find_task_by_pid_type_ns() -
and just substitute some args for it.
It turned out, that dereferencing the current->nsproxy->pid_ns construction
and pushing one more argument on the stack inline cause kernel text size to
grow.
This patch moves all this stuff out-of-line into kernel/pid.c. Together
with the next patch it saves a bit less than 400 bytes from the .text
section.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Paul Menage <menage@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 1301c0875370..f4d969e85612 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1523,9 +1523,8 @@ extern struct pid_namespace init_pid_ns; * type and namespace specified * find_task_by_pid_ns(): * finds a task by its pid in the specified namespace - * find_task_by_pid_type(): - * finds a task by its global id with the specified type, e.g. - * by global session id + * find_task_by_vpid(): + * finds a task by its virtual pid * find_task_by_pid(): * finds a task by its global pid * @@ -1535,12 +1534,10 @@ extern struct pid_namespace init_pid_ns; extern struct task_struct *find_task_by_pid_type_ns(int type, int pid, struct pid_namespace *ns); -#define find_task_by_pid_ns(nr, ns) \ - find_task_by_pid_type_ns(PIDTYPE_PID, nr, ns) -#define find_task_by_pid_type(type, nr) \ - find_task_by_pid_type_ns(type, nr, &init_pid_ns) -#define find_task_by_pid(nr) \ - find_task_by_pid_type(PIDTYPE_PID, nr) +extern struct task_struct *find_task_by_pid(pid_t nr); +extern struct task_struct *find_task_by_vpid(pid_t nr); +extern struct task_struct *find_task_by_pid_ns(pid_t nr, + struct pid_namespace *ns); extern void __set_special_pids(pid_t session, pid_t pgrp); |