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[v2] btrfs: Use bd_dev to generate index when dev_state_hashtable add items.

Message ID 1507686941-46390-1-git-send-email-gujx@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show

Commit Message

Gu Jinxiang Oct. 11, 2017, 1:55 a.m. UTC
From: Gu JinXiang <gujx@cn.fujitsu.com>

Fix bug of
<f8f84b2dfda5> (<btrfs: index check-integrity state hash by a dev_t>).

Description of this bug:
Use MOUNT_OPTIONS="-o check_int" when run xfstest, device can not be
mount successfully. So xfstest can not run.

Signed-off-by: Gu JinXiang <gujx@cn.fujitsu.com>
---
 fs/btrfs/check-integrity.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Nikolay Borisov Oct. 11, 2017, 7:41 a.m. UTC | #1
On 11.10.2017 04:55, Gu Jinxiang wrote:
> From: Gu JinXiang <gujx@cn.fujitsu.com>
> 
> Fix bug of
> <f8f84b2dfda5> (<btrfs: index check-integrity state hash by a dev_t>).
> 
> Description of this bug:
> Use MOUNT_OPTIONS="-o check_int" when run xfstest, device can not be
> mount successfully. So xfstest can not run.

You haven't described what causes the bug but rather how to reproduce it
? Describe what is the difference between using ->bdev and bdev->bd_dev.
And how using one or the other affects the integrity checks and why
those checks fail.

> 
> Signed-off-by: Gu JinXiang <gujx@cn.fujitsu.com>
> ---
>  fs/btrfs/check-integrity.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
> index 9d3854839038..86d79bc4cfb3 100644
> --- a/fs/btrfs/check-integrity.c
> +++ b/fs/btrfs/check-integrity.c
> @@ -613,7 +613,7 @@ static void btrfsic_dev_state_hashtable_add(
>  		struct btrfsic_dev_state_hashtable *h)
>  {
>  	const unsigned int hashval =
> -	    (((unsigned int)((uintptr_t)ds->bdev)) &
> +	    (((unsigned int)((uintptr_t)ds->bdev->bd_dev)) &
>  	     (BTRFSIC_DEV2STATE_HASHTABLE_SIZE - 1));
>  
>  	list_add(&ds->collision_resolving_node, h->table + hashval);
> 
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diff mbox

Patch

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 9d3854839038..86d79bc4cfb3 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -613,7 +613,7 @@  static void btrfsic_dev_state_hashtable_add(
 		struct btrfsic_dev_state_hashtable *h)
 {
 	const unsigned int hashval =
-	    (((unsigned int)((uintptr_t)ds->bdev)) &
+	    (((unsigned int)((uintptr_t)ds->bdev->bd_dev)) &
 	     (BTRFSIC_DEV2STATE_HASHTABLE_SIZE - 1));
 
 	list_add(&ds->collision_resolving_node, h->table + hashval);