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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 /kernel/ptrace.c | |
| parent | b488893a390edfe027bae7a46e9af8083e740668 (diff) | |
| download | lwn-228ebcbe634a30aec35132ea4375721bcc41bec0.tar.gz lwn-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 'kernel/ptrace.c')
| -rw-r--r-- | kernel/ptrace.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 66e99eb2d8a6..b0ace60ce596 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -444,8 +444,7 @@ struct task_struct *ptrace_get_task_struct(pid_t pid) return ERR_PTR(-EPERM); read_lock(&tasklist_lock); - child = find_task_by_pid_ns(pid, - current->nsproxy->pid_ns); + child = find_task_by_vpid(pid); if (child) get_task_struct(child); |