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* [PATCH] dm zoned: remove duplicated nr_rnd_zones increasement
@ 2020-03-22  9:29 Bob Liu
  2020-03-23  2:34 ` Damien Le Moal
  0 siblings, 1 reply; 2+ messages in thread
From: Bob Liu @ 2020-03-22  9:29 UTC (permalink / raw)
  To: dm-devel; +Cc: Damien.LeMoal, linux-block, Dmitry.Fomichev, Bob Liu

zmd->nr_rnd_zones was increased twice by mistake.
The other place:
1131                 zmd->nr_useable_zones++;
1132                 if (dmz_is_rnd(zone)) {
1133                         zmd->nr_rnd_zones++;
					^^^

Signed-off-by: Bob Liu <bob.liu@oracle.com>
---
 drivers/md/dm-zoned-metadata.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 516c7b6..369de15 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1109,7 +1109,6 @@ static int dmz_init_zone(struct blk_zone *blkz, unsigned int idx, void *data)
 	switch (blkz->type) {
 	case BLK_ZONE_TYPE_CONVENTIONAL:
 		set_bit(DMZ_RND, &zone->flags);
-		zmd->nr_rnd_zones++;
 		break;
 	case BLK_ZONE_TYPE_SEQWRITE_REQ:
 	case BLK_ZONE_TYPE_SEQWRITE_PREF:
-- 
2.9.5


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] dm zoned: remove duplicated nr_rnd_zones increasement
  2020-03-22  9:29 [PATCH] dm zoned: remove duplicated nr_rnd_zones increasement Bob Liu
@ 2020-03-23  2:34 ` Damien Le Moal
  0 siblings, 0 replies; 2+ messages in thread
From: Damien Le Moal @ 2020-03-23  2:34 UTC (permalink / raw)
  To: Bob Liu, dm-devel; +Cc: linux-block, Dmitry Fomichev

On 2020/03/22 18:30, Bob Liu wrote:
> zmd->nr_rnd_zones was increased twice by mistake.
> The other place:
> 1131                 zmd->nr_useable_zones++;
> 1132                 if (dmz_is_rnd(zone)) {
> 1133                         zmd->nr_rnd_zones++;
> 					^^^
> 
> Signed-off-by: Bob Liu <bob.liu@oracle.com>

Good catch ! But you need to add a Fixes tag and CC stable.

    Fixes: 3b1a94c88b79 ("dm zoned: drive-managed zoned block device target")
    Cc: stable@vger.kernel.org

Other than that, looks good.

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

> ---
>  drivers/md/dm-zoned-metadata.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
> index 516c7b6..369de15 100644
> --- a/drivers/md/dm-zoned-metadata.c
> +++ b/drivers/md/dm-zoned-metadata.c
> @@ -1109,7 +1109,6 @@ static int dmz_init_zone(struct blk_zone *blkz, unsigned int idx, void *data)
>  	switch (blkz->type) {
>  	case BLK_ZONE_TYPE_CONVENTIONAL:
>  		set_bit(DMZ_RND, &zone->flags);
> -		zmd->nr_rnd_zones++;
>  		break;
>  	case BLK_ZONE_TYPE_SEQWRITE_REQ:
>  	case BLK_ZONE_TYPE_SEQWRITE_PREF:
> 


-- 
Damien Le Moal
Western Digital Research

^ permalink raw reply	[flat|nested] 2+ messages in thread

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