block: add zone write plug condition to debugfs zone_wplugs

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>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index 3104fda5809b4dd1da716aa660241c60828daef4..bba64b42708260c745fea10bdf00e7776ef3eaf1 100644 (file)
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -2303,19 +2303,21 @@ 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);
 }