diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2025-05-05 10:33:59 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-06-02 11:23:22 +0200 |
| commit | 10eabeca45fdfa48e8efd2c7fc0fd97314b65266 (patch) | |
| tree | 97f38897c8a8e30fedc3403dffcc91710924b58f | |
| parent | bb13e79cc9ef3b4f18b905df0ab75f6f92725558 (diff) | |
um: chan_kern: use raw spinlock for irqs_to_free_lock
Since this is called deep in the ARCH=um IRQ infrastructure
it must use a raw spinlock. It's not really part of the
driver, but rather the core UML IRQ code.
Link: https://patch.msgid.link/20250505103358.ae7dc659f8b4.I64ca7aece30e0b4b0b5b35ad89cdd63db197c0ce@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | arch/um/drivers/chan_kern.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index e78a99816c86..26442db7d608 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -212,7 +212,7 @@ int enable_chan(struct line *line) * be permanently disabled. This is discovered in IRQ context, but * the freeing of the IRQ must be done later. */ -static DEFINE_SPINLOCK(irqs_to_free_lock); +static DEFINE_RAW_SPINLOCK(irqs_to_free_lock); static LIST_HEAD(irqs_to_free); void free_irqs(void) @@ -222,9 +222,9 @@ void free_irqs(void) struct list_head *ele; unsigned long flags; - spin_lock_irqsave(&irqs_to_free_lock, flags); + raw_spin_lock_irqsave(&irqs_to_free_lock, flags); list_splice_init(&irqs_to_free, &list); - spin_unlock_irqrestore(&irqs_to_free_lock, flags); + raw_spin_unlock_irqrestore(&irqs_to_free_lock, flags); list_for_each(ele, &list) { chan = list_entry(ele, struct chan, free_list); @@ -246,9 +246,9 @@ static void close_one_chan(struct chan *chan, int delay_free_irq) return; if (delay_free_irq) { - spin_lock_irqsave(&irqs_to_free_lock, flags); + raw_spin_lock_irqsave(&irqs_to_free_lock, flags); list_add(&chan->free_list, &irqs_to_free); - spin_unlock_irqrestore(&irqs_to_free_lock, flags); + raw_spin_unlock_irqrestore(&irqs_to_free_lock, flags); } else { if (chan->input && chan->enabled) um_free_irq(chan->line->read_irq, chan); |