summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--block/genhd.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 9a289d7..33a3b38 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1565,7 +1565,14 @@ unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask)
/* uncondtionally schedule event check and wait for it to finish */
disk_block_events(disk);
- queue_delayed_work(system_freezable_wq, &ev->dwork, 0);
+ /*
+ * We need to put the work on system_nrt_wq here since there is a
+ * deadlock that happens while probing a usb device while suspending. If
+ * we put work on a freezable workqueue here, a usb probe will wait here
+ * until the workqueue is unfrozen during suspend. Since suspend waits
+ * on all probes to complete, we have a deadlock
+ */
+ queue_delayed_work(system_nrt_wq, &ev->dwork, 0);
flush_delayed_work(&ev->dwork);
__disk_unblock_events(disk, false);
OpenPOWER on IntegriCloud