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Diffstat (limited to 'Documentation/kernel-hacking/locking.rst')
| -rw-r--r-- | Documentation/kernel-hacking/locking.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst index a8518ac0d31d..9850c1e52607 100644 --- a/Documentation/kernel-hacking/locking.rst +++ b/Documentation/kernel-hacking/locking.rst @@ -263,7 +263,7 @@ by a hardware interrupt on another CPU. This is where interrupts on that cpu, then grab the lock. :c:func:`spin_unlock_irq()` does the reverse. -The irq handler does not to use :c:func:`spin_lock_irq()`, because +The irq handler does not need to use :c:func:`spin_lock_irq()`, because the softirq cannot run while the irq handler is running: it can use :c:func:`spin_lock()`, which is slightly faster. The only exception would be if a different hardware irq handler uses the same lock: |