[PATCH] xfs: Capture state of the right inode in xfs_iflush_done

[PATCH] xfs: Capture state of the right inode in xfs_iflush_done

[Carlos Maiolino]

My previous patch: d3a304b6292168b83b45d624784f973fdc1ca674 check for
XFS_LI_FAILED flag xfs_iflush done, so the failed item can be properly
resubmitted.

In the loop scanning other inodes being completed, it should check the
current item for the XFS_LI_FAILED, and not the initial one.

The state of the initial inode is checked after the loop ends

Kudos to Eric for catching this.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
---
 fs/xfs/xfs_inode_item.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 6d0f74ec31e8..015e8ee793a3 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -745,7 +745,7 @@ xfs_iflush_done(
 		 */
 		iip = INODE_ITEM(blip);
 		if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) ||
-		    lip->li_flags & XFS_LI_FAILED)
+		    blip->li_flags & XFS_LI_FAILED)
 			need_ail++;
 
 		blip = next;
-- 
2.13.5

Re: [PATCH] xfs: Capture state of the right inode in xfs_iflush_done

[Christoph Hellwig]

Oops, yes this fix looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

I wish we could clean this up a bit by making li_bio_list a
real list_head, and then factoring the loop into a helper so that
lip isn't even in scope..

Re: [PATCH] xfs: Capture state of the right inode in xfs_iflush_done

[Eric Sandeen]

On 9/22/17 6:35 AM, Carlos Maiolino wrote:
> My previous patch: d3a304b6292168b83b45d624784f973fdc1ca674 check for
> XFS_LI_FAILED flag xfs_iflush done, so the failed item can be properly
> resubmitted.
> 
> In the loop scanning other inodes being completed, it should check the
> current item for the XFS_LI_FAILED, and not the initial one.
> 
> The state of the initial inode is checked after the loop ends
> 
> Kudos to Eric for catching this.

Coverity, actually, I'm just the messenger.

Fixes-coverity-id: 1417838

-Eric

> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
> ---
>  fs/xfs/xfs_inode_item.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
> index 6d0f74ec31e8..015e8ee793a3 100644
> --- a/fs/xfs/xfs_inode_item.c
> +++ b/fs/xfs/xfs_inode_item.c
> @@ -745,7 +745,7 @@ xfs_iflush_done(
>  		 */
>  		iip = INODE_ITEM(blip);
>  		if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) ||
> -		    lip->li_flags & XFS_LI_FAILED)
> +		    blip->li_flags & XFS_LI_FAILED)
>  			need_ail++;
>  
>  		blip = next;
> 

Re: [PATCH] xfs: Capture state of the right inode in xfs_iflush_done

[Darrick J. Wong]

On Fri, Sep 22, 2017 at 01:35:55PM +0200, Carlos Maiolino wrote:
> My previous patch: d3a304b6292168b83b45d624784f973fdc1ca674 check for
> XFS_LI_FAILED flag xfs_iflush done, so the failed item can be properly
> resubmitted.
> 
> In the loop scanning other inodes being completed, it should check the
> current item for the XFS_LI_FAILED, and not the initial one.
> 
> The state of the initial inode is checked after the loop ends
> 
> Kudos to Eric for catching this.
> 
> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
> ---
>  fs/xfs/xfs_inode_item.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
> index 6d0f74ec31e8..015e8ee793a3 100644
> --- a/fs/xfs/xfs_inode_item.c
> +++ b/fs/xfs/xfs_inode_item.c
> @@ -745,7 +745,7 @@ xfs_iflush_done(
>  		 */
>  		iip = INODE_ITEM(blip);
>  		if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) ||
> -		    lip->li_flags & XFS_LI_FAILED)
> +		    blip->li_flags & XFS_LI_FAILED)

/me grumbles about the braces here, but will just fix that on the way in...
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

>  			need_ail++;
>  
>  		blip = next;
> -- 
> 2.13.5
> 
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Re: [PATCH] xfs: Capture state of the right inode in xfs_iflush_done

[Carlos Maiolino]

On Fri, Sep 22, 2017 at 02:32:16PM +0000, Christoph Hellwig wrote:
> Oops, yes this fix looks good:
> 
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> 
> I wish we could clean this up a bit by making li_bio_list a
> real list_head, and then factoring the loop into a helper so that
> lip isn't even in scope..

Sounds good, Adding it to my todo list.

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-- 
Carlos