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Restructure code for readability improvement. No functional change.

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Reviewed by: kib
This commit is contained in:
Kirk McKusick 2015-07-19 22:25:16 +00:00
parent de2c95cc00
commit 1b79b9498b
1 changed files with 7 additions and 10 deletions
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17
sys/kern/kern_intr.c
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@ -1231,17 +1231,14 @@ intr_event_execute_handlers(struct proc *p, struct intr_event *ie)
* 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",