Author: mckusick
Date: Sun Jul 19 22:25:16 2015
New Revision: 285705
URL: https://svnweb.freebsd.org/changeset/base/285705
Log:
Restructure code for readability improvement. No functional change.
Reviewed by: kib
Modified:
head/sys/kern/kern_intr.c
Modified: head/sys/kern/kern_intr.c
==============================================================================
--- head/sys/kern/kern_intr.c Sun Jul 19 22:24:33 2015 (r285704)
+++ head/sys/kern/kern_intr.c Sun Jul 19 22:25:16 2015 (r285705)
@@ -1231,17 +1231,14 @@ intr_event_execute_handlers(struct proc
* For software interrupt threads, we only execute
* handlers that have their need flag set. Hardware
* interrupt threads always invoke all of their handlers.
+ *
+ * ih_need can only be 0 or 1. Failed cmpset below
+ * means that there is no request to execute handlers,
+ * so a retry of the cmpset is not needed.
*/
- if ((ie->ie_flags & IE_SOFT) != 0) {
- /*
- * ih_need can only be 0 or 1. Failed cmpset
- * below means that there is no request to
- * execute handlers, so a retry of the cmpset
- * is not needed.
- */
- if (atomic_cmpset_int(&ih->ih_need, 1, 0) == 0)
- continue;
- }
+ if ((ie->ie_flags & IE_SOFT) != 0 &&
+ atomic_cmpset_int(&ih->ih_need, 1, 0) == 0)
+ continue;
/* Execute this handler. */
CTR6(KTR_INTR, "%s: pid %d exec %p(%p) for %s flg=%x",
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