An issue has been observed where epoll file descriptor
list rebuilds every time an interrupt/alarm event is
received.
eal_intr_process_interrupts() should notify pipe fd only
if any source is removed from the source list i.e (rv > 0)
Fixes: 0c7ce182a760 ("eal: add pending interrupt callback unregister")
Cc: sta...@dpdk.org
Signed-off-by: Harman Kalra <hka...@marvell.com>
---
*V2: missing closing bracket in Fixes tag in V1
lib/librte_eal/linux/eal_interrupts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/librte_eal/linux/eal_interrupts.c
b/lib/librte_eal/linux/eal_interrupts.c
index 16e7a7d51..84eeaa1bc 100644
--- a/lib/librte_eal/linux/eal_interrupts.c
+++ b/lib/librte_eal/linux/eal_interrupts.c
@@ -1010,7 +1010,7 @@ eal_intr_process_interrupts(struct epoll_event *events,
int nfds)
}
/* notify the pipe fd waited by epoll_wait to rebuild the wait
list */
- if (rv >= 0 && write(intr_pipe.writefd, "1", 1) < 0) {
+ if (rv > 0 && write(intr_pipe.writefd, "1", 1) < 0) {
rte_spinlock_unlock(&intr_lock);
return -EPIPE;
}
--
2.18.0
