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authorChangbin Du <changbin.du@gmail.com>2021-08-14 09:48:31 +0800
committerJonathan Corbet <corbet@lwn.net>2021-08-24 13:28:23 -0600
commitfe450eeb4e6f1c19d088c99d2206ecabb8d0892b (patch)
tree44149f1686658a16877d4191b9f43954ee35b229 /Documentation/kernel-hacking
parentf08fe9d29366c0204c3d571fa0088b1f0efd1a17 (diff)
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Documentation: in_irq() cleanup
Replace the obsolete and ambiguos macro in_irq() with new macro in_hardirq(). Signed-off-by: Changbin Du <changbin.du@gmail.com> Link: https://lore.kernel.org/r/20210814014831.53083-1-changbin.du@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/kernel-hacking')
-rw-r--r--Documentation/kernel-hacking/hacking.rst4
-rw-r--r--Documentation/kernel-hacking/locking.rst4
2 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/kernel-hacking/hacking.rst b/Documentation/kernel-hacking/hacking.rst
index df65c19aa7df..55bd37a2efb0 100644
--- a/Documentation/kernel-hacking/hacking.rst
+++ b/Documentation/kernel-hacking/hacking.rst
@@ -76,8 +76,8 @@ handler is never re-entered: if the same interrupt arrives, it is queued
fast: frequently it simply acknowledges the interrupt, marks a 'software
interrupt' for execution and exits.
-You can tell you are in a hardware interrupt, because
-:c:func:`in_irq()` returns true.
+You can tell you are in a hardware interrupt, because in_hardirq() returns
+true.
.. warning::
diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst
index ed1284c6f078..94232ed1d592 100644
--- a/Documentation/kernel-hacking/locking.rst
+++ b/Documentation/kernel-hacking/locking.rst
@@ -1406,7 +1406,7 @@ bh
half will be running at any time.
Hardware Interrupt / Hardware IRQ
- Hardware interrupt request. in_irq() returns true in a
+ Hardware interrupt request. in_hardirq() returns true in a
hardware interrupt handler.
Interrupt Context
@@ -1418,7 +1418,7 @@ SMP
(``CONFIG_SMP=y``).
Software Interrupt / softirq
- Software interrupt handler. in_irq() returns false;
+ Software interrupt handler. in_hardirq() returns false;
in_softirq() returns true. Tasklets and softirqs both
fall into the category of 'software interrupts'.