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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_idletask.c | |
| parent | e1d1484f72127a5580d37c379f6a5b2c2786434c (diff) | |
| download | linux-stable-681f3e68541d6f03e3e05d21fe15093578b8b539.tar.gz linux-stable-681f3e68541d6f03e3e05d21fe15093578b8b539.tar.bz2 linux-stable-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_idletask.c')
| -rw-r--r-- | kernel/sched_idletask.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c index 586b06ca30aa..bf9c25c15b8b 100644 --- a/kernel/sched_idletask.c +++ b/kernel/sched_idletask.c @@ -37,6 +37,7 @@ static void put_prev_task_idle(struct rq *rq, struct task_struct *prev) { } +#ifdef CONFIG_SMP static unsigned long load_balance_idle(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, @@ -52,6 +53,7 @@ move_one_task_idle(struct rq *this_rq, int this_cpu, struct rq *busiest, { return 0; } +#endif static void task_tick_idle(struct rq *rq, struct task_struct *curr) { @@ -76,8 +78,10 @@ const struct sched_class idle_sched_class = { .pick_next_task = pick_next_task_idle, .put_prev_task = put_prev_task_idle, +#ifdef CONFIG_SMP .load_balance = load_balance_idle, .move_one_task = move_one_task_idle, +#endif .set_curr_task = set_curr_task_idle, .task_tick = task_tick_idle, |