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Subject[tip:timers/core] hrtimer: Remove task argument from hrtimer_init_sleeper()
Commit-ID:  b74494872555d1f7888dfd9225700a363f4a84fc
Gitweb: https://git.kernel.org/tip/b74494872555d1f7888dfd9225700a363f4a84fc
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Fri, 26 Jul 2019 20:30:49 +0200
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 30 Jul 2019 23:57:51 +0200

hrtimer: Remove task argument from hrtimer_init_sleeper()

All callers hand in 'current' and that's the only task pointer which
actually makes sense. Remove the task argument and set current in the
function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190726185752.791885290@linutronix.de

---
block/blk-mq.c | 2 +-
drivers/staging/android/vsoc.c | 2 +-
include/linux/hrtimer.h | 3 +--
include/linux/wait.h | 2 +-
kernel/futex.c | 2 +-
kernel/time/hrtimer.c | 8 ++++----
net/core/pktgen.c | 2 +-
7 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index b038ec680e84..5f647cb8c695 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3418,7 +3418,7 @@ static bool blk_mq_poll_hybrid_sleep(struct request_queue *q,
hrtimer_init_on_stack(&hs.timer, CLOCK_MONOTONIC, mode);
hrtimer_set_expires(&hs.timer, kt);

- hrtimer_init_sleeper(&hs, current);
+ hrtimer_init_sleeper(&hs);
do {
if (blk_mq_rq_state(rq) == MQ_RQ_COMPLETE)
break;
diff --git a/drivers/staging/android/vsoc.c b/drivers/staging/android/vsoc.c
index 00a1ec7b9154..ce480bcf20d2 100644
--- a/drivers/staging/android/vsoc.c
+++ b/drivers/staging/android/vsoc.c
@@ -442,7 +442,7 @@ static int handle_vsoc_cond_wait(struct file *filp, struct vsoc_cond_wait *arg)
hrtimer_set_expires_range_ns(&to->timer, wake_time,
current->timer_slack_ns);

- hrtimer_init_sleeper(to, current);
+ hrtimer_init_sleeper(to);
}

while (1) {
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 4971100a8cab..3c74f89367c4 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -463,8 +463,7 @@ extern long hrtimer_nanosleep(const struct timespec64 *rqtp,
const enum hrtimer_mode mode,
const clockid_t clockid);

-extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
- struct task_struct *tsk);
+extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl);

extern int schedule_hrtimeout_range(ktime_t *expires, u64 delta,
const enum hrtimer_mode mode);
diff --git a/include/linux/wait.h b/include/linux/wait.h
index b6f77cf60dd7..d57832774ca6 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -489,7 +489,7 @@ do { \
struct hrtimer_sleeper __t; \
\
hrtimer_init_on_stack(&__t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); \
- hrtimer_init_sleeper(&__t, current); \
+ hrtimer_init_sleeper(&__t); \
if ((timeout) != KTIME_MAX) \
hrtimer_start_range_ns(&__t.timer, timeout, \
current->timer_slack_ns, \
diff --git a/kernel/futex.c b/kernel/futex.c
index 6d50728ef2e7..5e9842ea4012 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -490,7 +490,7 @@ futex_setup_timer(ktime_t *time, struct hrtimer_sleeper *timeout,
hrtimer_init_on_stack(&timeout->timer, (flags & FLAGS_CLOCKRT) ?
CLOCK_REALTIME : CLOCK_MONOTONIC,
HRTIMER_MODE_ABS);
- hrtimer_init_sleeper(timeout, current);
+ hrtimer_init_sleeper(timeout);

/*
* If range_ns is 0, calling hrtimer_set_expires_range_ns() is
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 5ee77f1a8a92..de895d86800c 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1639,10 +1639,10 @@ static enum hrtimer_restart hrtimer_wakeup(struct hrtimer *timer)
return HRTIMER_NORESTART;
}

-void hrtimer_init_sleeper(struct hrtimer_sleeper *sl, struct task_struct *task)
+void hrtimer_init_sleeper(struct hrtimer_sleeper *sl)
{
sl->timer.function = hrtimer_wakeup;
- sl->task = task;
+ sl->task = current;
}
EXPORT_SYMBOL_GPL(hrtimer_init_sleeper);

@@ -1669,7 +1669,7 @@ static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mod
{
struct restart_block *restart;

- hrtimer_init_sleeper(t, current);
+ hrtimer_init_sleeper(t);

do {
set_current_state(TASK_INTERRUPTIBLE);
@@ -1930,7 +1930,7 @@ schedule_hrtimeout_range_clock(ktime_t *expires, u64 delta,
hrtimer_init_on_stack(&t.timer, clock_id, mode);
hrtimer_set_expires_range_ns(&t.timer, *expires, delta);

- hrtimer_init_sleeper(&t, current);
+ hrtimer_init_sleeper(&t);

hrtimer_start_expires(&t.timer, mode);

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index bb9915291644..7f3cf2381f27 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2171,7 +2171,7 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
} while (ktime_compare(end_time, spin_until) < 0);
} else {
/* see do_nanosleep */
- hrtimer_init_sleeper(&t, current);
+ hrtimer_init_sleeper(&t);
do {
set_current_state(TASK_INTERRUPTIBLE);
hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS);
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