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Uninline the task_xid_nr_ns() calls

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Since these are expanded into call to pid_nr_ns() anyway, it's OK to move
the whole routine out-of-line.  This is a cheap way to save ~100 bytes from
vmlinux.  Together with the previous two patches, it saves half-a-kilo from
the vmlinux.

Un-inline other (currently inlined) functions must be done with additional
performance testing.

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>
This commit is contained in:
Pavel Emelyanov 2007-10-18 23:40:19 -07:00 • committed by Linus Torvalds
parent 8990571eb5
commit 2f2a3a46fc
2 changed files with 28 additions and 20 deletions
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24
include/linux/sched.h
View file

@ -1243,11 +1243,7 @@ static inline pid_t task_pid_nr(struct task_struct *tsk)
return tsk->pid; return tsk->pid;
} }
static inline pid_t task_pid_nr_ns(struct task_struct *tsk, pid_t task_pid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
struct pid_namespace *ns)
{
return pid_nr_ns(task_pid(tsk), ns);
}
static inline pid_t task_pid_vnr(struct task_struct *tsk) static inline pid_t task_pid_vnr(struct task_struct *tsk)
{ {
@ -1260,11 +1256,7 @@ static inline pid_t task_tgid_nr(struct task_struct *tsk)
return tsk->tgid; return tsk->tgid;
} }
static inline pid_t task_tgid_nr_ns(struct task_struct *tsk, pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
struct pid_namespace *ns)
{
return pid_nr_ns(task_tgid(tsk), ns);
}
static inline pid_t task_tgid_vnr(struct task_struct *tsk) static inline pid_t task_tgid_vnr(struct task_struct *tsk)
{ {
@ -1277,11 +1269,7 @@ static inline pid_t task_pgrp_nr(struct task_struct *tsk)
return tsk->signal->pgrp; return tsk->signal->pgrp;
} }
static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk, pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
struct pid_namespace *ns)
{
return pid_nr_ns(task_pgrp(tsk), ns);
}
static inline pid_t task_pgrp_vnr(struct task_struct *tsk) static inline pid_t task_pgrp_vnr(struct task_struct *tsk)
{ {
@ -1294,11 +1282,7 @@ static inline pid_t task_session_nr(struct task_struct *tsk)
return tsk->signal->__session; return tsk->signal->__session;
} }
static inline pid_t task_session_nr_ns(struct task_struct *tsk, pid_t task_session_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
struct pid_namespace *ns)
{
return pid_nr_ns(task_session(tsk), ns);
}
static inline pid_t task_session_vnr(struct task_struct *tsk) static inline pid_t task_session_vnr(struct task_struct *tsk)
{ {

24
kernel/pid.c
View file

@ -443,6 +443,30 @@ pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
return nr; return nr;
} }
pid_t task_pid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return pid_nr_ns(task_pid(tsk), ns);
}
EXPORT_SYMBOL(task_pid_nr_ns);
pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return pid_nr_ns(task_tgid(tsk), ns);
}
EXPORT_SYMBOL(task_tgid_nr_ns);
pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return pid_nr_ns(task_pgrp(tsk), ns);
}
EXPORT_SYMBOL(task_pgrp_nr_ns);
pid_t task_session_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return pid_nr_ns(task_session(tsk), ns);
}
EXPORT_SYMBOL(task_session_nr_ns);
/* /*
* Used by proc to find the first pid that is greater then or equal to nr. * Used by proc to find the first pid that is greater then or equal to nr.
* *