Delay injection can cause indefinitely hung zios

If we hit the (NSEC_TO_TICK(diff) == 0) condition in zio_delay_interrupt, zio_interrupt is never called and the zio does not progress. Signed-off-by: sara hartse <[email protected]>
openzfs · Feb 14, 2019 · 7fe33b5 · 7fe33b5
1 parent 65282ee
commit 7fe33b5
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/module/zfs/zio.c b/module/zfs/zio.c
@@ -1833,6 +1833,7 @@ zio_delay_interrupt(zio_t *zio)
 			if (NSEC_TO_TICK(diff) == 0) {
 				/* Our delay is less than a jiffy - just spin */
 				zfs_sleep_until(zio->io_target_timestamp);
+				zio_interrupt(zio);
 			} else {
 				/*
 				 * Use taskq_dispatch_delay() in the place of