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| author | Peter Williams <pwil3058@bigpond.net.au> | 2007-10-24 18:23:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-24 18:23:51 +0200 |
| commit | 681f3e68541d6f03e3e05d21fe15093578b8b539 (patch) | |
| tree | 82e13a7b15a2bb15233ba964dd1eb352b007cae4 /kernel/sched_rt.c | |
| parent | e1d1484f72127a5580d37c379f6a5b2c2786434c (diff) | |
| download | lwn-681f3e68541d6f03e3e05d21fe15093578b8b539.tar.gz lwn-681f3e68541d6f03e3e05d21fe15093578b8b539.zip | |
sched: isolate SMP balancing code a bit more
At the moment, a lot of load balancing code that is irrelevant to non
SMP systems gets included during non SMP builds.
This patch addresses this issue and reduces the binary size on non
SMP systems:
text data bss dec hex filename
10983 28 1192 12203 2fab sched.o.before
10739 28 1192 11959 2eb7 sched.o.after
Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_rt.c')
| -rw-r--r-- | kernel/sched_rt.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index e9395b7119e6..8abd752a0ebd 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -98,6 +98,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p) p->se.exec_start = 0; } +#ifdef CONFIG_SMP /* * Load-balancing iterator. Note: while the runqueue stays locked * during the whole iteration, the current task might be @@ -202,6 +203,7 @@ move_one_task_rt(struct rq *this_rq, int this_cpu, struct rq *busiest, return iter_move_one_task(this_rq, this_cpu, busiest, sd, idle, &rt_rq_iterator); } +#endif static void task_tick_rt(struct rq *rq, struct task_struct *p) { @@ -245,8 +247,10 @@ const struct sched_class rt_sched_class = { .pick_next_task = pick_next_task_rt, .put_prev_task = put_prev_task_rt, +#ifdef CONFIG_SMP .load_balance = load_balance_rt, .move_one_task = move_one_task_rt, +#endif .set_curr_task = set_curr_task_rt, .task_tick = task_tick_rt, |