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| author | Stephen Boyd <swboyd@chromium.org> | 2020-03-18 10:41:32 -0700 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2020-03-20 17:16:19 -0600 |
| commit | 6adb7755996f0bf0f5e5f3996b016bc66f95f372 (patch) | |
| tree | 142c8d057b02c250c77c3ebc00a7a9a6dee9342c /Documentation/kernel-hacking | |
| parent | 769f90f8a9568250f14cce424adcf515b9fa6a78 (diff) | |
| download | linux-6adb7755996f0bf0f5e5f3996b016bc66f95f372.tar.gz linux-6adb7755996f0bf0f5e5f3996b016bc66f95f372.tar.bz2 linux-6adb7755996f0bf0f5e5f3996b016bc66f95f372.zip | |
docs: locking: Add 'need' to hardirq section
Add the missing word to make this sentence read properly.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200318174133.160206-2-swboyd@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/kernel-hacking')
| -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: |