Document that zwplug->lock is the outer lock relative to
disk->zone_wplugs_lock.
Cc: Damien Le Moal <dlemoal@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
block/blk-zoned.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index 1575b887fa38..3e42372fa832 100644
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -46,7 +46,8 @@ static const char *const zone_cond_name[] = {
* reference is dropped whenever the zone of the zone write plug is reset,
* finished and when the zone becomes full (last write BIO to the zone
* completes).
- * @lock: Spinlock to atomically manipulate the plug.
+ * @lock: Spinlock to atomically manipulate the plug. Outer lock relative to
+ * disk->zone_wplugs_lock.
* @flags: Flags indicating the plug state.
* @zone_no: The number of the zone the plug is managing.
* @wp_offset: The zone write pointer location relative to the start of the zone
