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| author | Takashi Iwai <tiwai@suse.de> | 2018-08-13 12:12:31 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-08-13 12:12:31 +0200 |
| commit | f5b6c1fcb42fe7d6f2f6eb2220512e2a5f875133 (patch) | |
| tree | 325f29d9788e80a0dd66d907ce38650834060e4b /kernel/softirq.c | |
| parent | 73b383141d296c55bfbc0ce336a4a946627e7780 (diff) | |
| parent | 4aa5db22d35588e1a5d2ee88472348ea73d9fb23 (diff) | |
| download | linux-stable-f5b6c1fcb42fe7d6f2f6eb2220512e2a5f875133.tar.gz linux-stable-f5b6c1fcb42fe7d6f2f6eb2220512e2a5f875133.tar.bz2 linux-stable-f5b6c1fcb42fe7d6f2f6eb2220512e2a5f875133.zip | |
Merge tag 'asoc-v4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v4.19
A fairly big update, including quite a bit of core activity this time
around (which is good to see) along with a fairly large set of new
drivers.
- A new snd_pcm_stop_xrun() helper which is now used in several
drivers.
- Support for providing name prefixes to generic component nodes.
- Quite a few fixes for DPCM as it gains a bit wider use and more
robust testing.
- Generalization of the DIO2125 support to a simple amplifier driver.
- Accessory detection support for the audio graph card.
- DT support for PXA AC'97 devices.
- Quirks for a number of new x86 systems.
- Support for AM Logic Meson, Everest ES7154, Intel systems with
RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707.
Diffstat (limited to 'kernel/softirq.c')
| -rw-r--r-- | kernel/softirq.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index 900dcfee542c..6f584861d329 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -79,12 +79,16 @@ static void wakeup_softirqd(void) /* * If ksoftirqd is scheduled, we do not want to process pending softirqs - * right now. Let ksoftirqd handle this at its own rate, to get fairness. + * right now. Let ksoftirqd handle this at its own rate, to get fairness, + * unless we're doing some of the synchronous softirqs. */ -static bool ksoftirqd_running(void) +#define SOFTIRQ_NOW_MASK ((1 << HI_SOFTIRQ) | (1 << TASKLET_SOFTIRQ)) +static bool ksoftirqd_running(unsigned long pending) { struct task_struct *tsk = __this_cpu_read(ksoftirqd); + if (pending & SOFTIRQ_NOW_MASK) + return false; return tsk && (tsk->state == TASK_RUNNING); } @@ -328,7 +332,7 @@ asmlinkage __visible void do_softirq(void) pending = local_softirq_pending(); - if (pending && !ksoftirqd_running()) + if (pending && !ksoftirqd_running(pending)) do_softirq_own_stack(); local_irq_restore(flags); @@ -355,7 +359,7 @@ void irq_enter(void) static inline void invoke_softirq(void) { - if (ksoftirqd_running()) + if (ksoftirqd_running(local_softirq_pending())) return; if (!force_irqthreads) { @@ -386,7 +390,7 @@ static inline void tick_irq_exit(void) /* Make sure that timer wheel updates are propagated */ if ((idle_cpu(cpu) && !need_resched()) || tick_nohz_full_cpu(cpu)) { - if (!in_interrupt()) + if (!in_irq()) tick_nohz_irq_exit(); } #endif |