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authorPavel Emelyanov <xemul@openvz.org>2007-10-18 23:40:19 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 11:53:41 -0700
commit8990571eb573032c1192440febb17132074c5575 (patch)
treec5cceff1dbac91ca12917e12f5768a5ab332ec75 /kernel/pid.c
parentbac0abd6174e427404dd197cdbefece31e97329b (diff)
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Uninline find_pid etc set of functions
The find_pid/_vpid/_pid_ns functions are used to find the struct pid by its id, depending on whic id - global or virtual - is used. The find_vpid() is a macro that pushes the current->nsproxy->pid_ns on the stack to call another function - find_pid_ns(). It turned out, that this dereference together with the push itself cause the kernel text size to grow too much. Move all these out-of-line. Together with the previous patch this saves a bit less that 400 bytes from .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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/pid.c')
-rw-r--r--kernel/pid.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/pid.c b/kernel/pid.c
index bed9e7f80a50..8040533d1a04 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -302,6 +302,18 @@ struct pid * fastcall find_pid_ns(int nr, struct pid_namespace *ns)
}
EXPORT_SYMBOL_GPL(find_pid_ns);
+struct pid *find_vpid(int nr)
+{
+ return find_pid_ns(nr, current->nsproxy->pid_ns);
+}
+EXPORT_SYMBOL_GPL(find_vpid);
+
+struct pid *find_pid(int nr)
+{
+ return find_pid_ns(nr, &init_pid_ns);
+}
+EXPORT_SYMBOL_GPL(find_pid);
+
/*
* attach_pid() must be called with the tasklist_lock write-held.
*/