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author | Jason Gunthorpe <jgg@nvidia.com> | 2021-12-14 20:18:48 -0400 |
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committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-12-14 20:18:48 -0400 |
commit | 4922f0920966c28d674b03479cdcb7f3939bfbbd (patch) | |
tree | 6a8b3972ff853fc0addcfab662d33354124f7fdb /kernel/time/timer.c | |
parent | RDMA/cma: Let cma_resolve_ib_dev() continue search even after empty entry (diff) | |
parent | Linux 5.16-rc5 (diff) | |
download | linux-dev-4922f0920966c28d674b03479cdcb7f3939bfbbd.tar.xz linux-dev-4922f0920966c28d674b03479cdcb7f3939bfbbd.zip |
Merge tag 'v5.16-rc5' into rdma.git for-next
Required due to dependencies in following patches.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'kernel/time/timer.c')
-rw-r--r-- | kernel/time/timer.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/kernel/time/timer.c b/kernel/time/timer.c index e3d2c23c413d..85f1021ad459 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -2054,26 +2054,28 @@ unsigned long msleep_interruptible(unsigned int msecs) EXPORT_SYMBOL(msleep_interruptible); /** - * usleep_range - Sleep for an approximate time - * @min: Minimum time in usecs to sleep - * @max: Maximum time in usecs to sleep + * usleep_range_state - Sleep for an approximate time in a given state + * @min: Minimum time in usecs to sleep + * @max: Maximum time in usecs to sleep + * @state: State of the current task that will be while sleeping * * In non-atomic context where the exact wakeup time is flexible, use - * usleep_range() instead of udelay(). The sleep improves responsiveness + * usleep_range_state() instead of udelay(). The sleep improves responsiveness * by avoiding the CPU-hogging busy-wait of udelay(), and the range reduces * power usage by allowing hrtimers to take advantage of an already- * scheduled interrupt instead of scheduling a new one just for this sleep. */ -void __sched usleep_range(unsigned long min, unsigned long max) +void __sched usleep_range_state(unsigned long min, unsigned long max, + unsigned int state) { ktime_t exp = ktime_add_us(ktime_get(), min); u64 delta = (u64)(max - min) * NSEC_PER_USEC; for (;;) { - __set_current_state(TASK_UNINTERRUPTIBLE); + __set_current_state(state); /* Do not return before the requested sleep time has elapsed */ if (!schedule_hrtimeout_range(&exp, delta, HRTIMER_MODE_ABS)) break; } } -EXPORT_SYMBOL(usleep_range); +EXPORT_SYMBOL(usleep_range_state); |