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authorRoman Zippel2006-03-26 01:38:12 -0800
committerLinus Torvalds2006-03-26 08:57:03 -0800
commit05cfb614ddbf3181540ce09d44d96486f8ba8d6a (patch)
treeaafed98638557a4643141d906fbb2406f0764a94 /kernel/hrtimer.c
parentdf869b630d9d9131c10cf073fb61646048874b2f (diff)
[PATCH] hrtimers: remove data field
The nanosleep cleanup allows to remove the data field of hrtimer. The callback function can use container_of() to get it's own data. Since the hrtimer structure is anyway embedded in other structures, this adds no overhead. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/hrtimer.c')
-rw-r--r--kernel/hrtimer.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 44108de4f028..0237a556eb1f 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -613,21 +613,19 @@ static inline void run_hrtimer_queue(struct hrtimer_base *base)
while ((node = base->first)) {
struct hrtimer *timer;
- int (*fn)(void *);
+ int (*fn)(struct hrtimer *);
int restart;
- void *data;
timer = rb_entry(node, struct hrtimer, node);
if (base->softirq_time.tv64 <= timer->expires.tv64)
break;
fn = timer->function;
- data = timer->data;
set_curr_timer(base, timer);
__remove_hrtimer(timer, base);
spin_unlock_irq(&base->lock);
- restart = fn(data);
+ restart = fn(timer);
spin_lock_irq(&base->lock);
@@ -664,9 +662,10 @@ struct sleep_hrtimer {
int expired;
};
-static int nanosleep_wakeup(void *data)
+static int nanosleep_wakeup(struct hrtimer *timer)
{
- struct sleep_hrtimer *t = data;
+ struct sleep_hrtimer *t =
+ container_of(timer, struct sleep_hrtimer, timer);
t->expired = 1;
wake_up_process(t->task);
@@ -677,7 +676,6 @@ static int nanosleep_wakeup(void *data)
static int __sched do_nanosleep(struct sleep_hrtimer *t, enum hrtimer_mode mode)
{
t->timer.function = nanosleep_wakeup;
- t->timer.data = t;
t->task = current;
t->expired = 0;