md: improve the is_mddev_idle test fix
Don't use 'unsigned' variable to track sync vs non-sync IO, as the only thing
we want to do with them is a signed comparison, and fix up the comment which
had become quite wrong.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index de72c49..28ac632 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -51,7 +51,7 @@
sector_t size; /* Device size (in blocks) */
mddev_t *mddev; /* RAID array if running */
- unsigned long last_events; /* IO event timestamp */
+ long last_events; /* IO event timestamp */
struct block_device *bdev; /* block device handle */