diff mbox series

[01/12] dm-zoned: add debugging message for reading superblocks

Message ID 20200522153901.133375-2-hare@suse.de (mailing list archive)
State Superseded, archived
Delegated to: Mike Snitzer
Headers show
Series dm-zoned: multi-device support | expand

Commit Message

Hannes Reinecke May 22, 2020, 3:38 p.m. UTC 
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/md/dm-zoned-metadata.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Damien Le Moal May 25, 2020, 1:54 a.m. UTC | #1 
On 2020/05/23 0:39, Hannes Reinecke wrote:
> Signed-off-by: Hannes Reinecke <hare@suse.de>
> ---
>  drivers/md/dm-zoned-metadata.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
> index 4a2e351365c5..b0d3ed4ac56a 100644
> --- a/drivers/md/dm-zoned-metadata.c
> +++ b/drivers/md/dm-zoned-metadata.c
> @@ -1105,6 +1105,9 @@ static int dmz_check_sb(struct dmz_metadata *zmd, unsigned int set)
>   */
>  static int dmz_read_sb(struct dmz_metadata *zmd, unsigned int set)
>  {
> +	DMDEBUG("(%s): read superblock set %d dev %s block %llu",
> +		zmd->devname, set, zmd->sb[set].dev->name,
> +		zmd->sb[set].block);

A blank line here would be nice. Cosmetic only, no big deal.

>  	return dmz_rdwr_block(zmd->sb[set].dev, REQ_OP_READ,
>  			      zmd->sb[set].block, zmd->sb[set].mblk->page);
>  }
> 

Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
diff mbox series

Patch

diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 4a2e351365c5..b0d3ed4ac56a 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1105,6 +1105,9 @@  static int dmz_check_sb(struct dmz_metadata *zmd, unsigned int set)
  */
 static int dmz_read_sb(struct dmz_metadata *zmd, unsigned int set)
 {
+	DMDEBUG("(%s): read superblock set %d dev %s block %llu",
+		zmd->devname, set, zmd->sb[set].dev->name,
+		zmd->sb[set].block);
 	return dmz_rdwr_block(zmd->sb[set].dev, REQ_OP_READ,
 			      zmd->sb[set].block, zmd->sb[set].mblk->page);
 }