[PATCH v3 13/15] block: add zone write plug condition to debugfs zone_wplugs

[Damien Le Moal <dlemoal@kernel.org>]

Modify queue_zone_wplug_show() to include the condition of a zone write
plug to the zone_wplugs debugfs attribute of a zoned block device.
To improve readability and ease of use, rather than the zone condition
raw value, the zone condition name is given using blk_zone_cond_str().

Suggested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 block/blk-zoned.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index 2180d5256f9f..bf6495f0d49f 100644
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -2295,19 +2295,21 @@ static void queue_zone_wplug_show(struct blk_zone_wplug *zwplug,
 	unsigned int zwp_wp_offset, zwp_flags;
 	unsigned int zwp_zone_no, zwp_ref;
 	unsigned int zwp_bio_list_size;
+	enum blk_zone_cond zwp_cond;
 	unsigned long flags;
 
 	spin_lock_irqsave(&zwplug->lock, flags);
 	zwp_zone_no = zwplug->zone_no;
 	zwp_flags = zwplug->flags;
 	zwp_ref = refcount_read(&zwplug->ref);
+	zwp_cond = zwplug->cond;
 	zwp_wp_offset = zwplug->wp_offset;
 	zwp_bio_list_size = bio_list_size(&zwplug->bio_list);
 	spin_unlock_irqrestore(&zwplug->lock, flags);
 
 	seq_printf(m,
-		"Zone no: %u, flags: 0x%x, ref: %u, wp ofst: %u, pending BIO: %u\n",
-		zwp_zone_no, zwp_flags, zwp_ref,
+		"Zone no: %u, flags: 0x%x, ref: %u, cond: %s, wp ofst: %u, pending BIO: %u\n",
+		zwp_zone_no, zwp_flags, zwp_ref, blk_zone_cond_str(zwp_cond),
 		zwp_wp_offset, zwp_bio_list_size);
 }
 
-- 
2.51.0