linux-ext4 - Re: [PATCH 2/4] xfs: unlock inode when xfs_ioctl_setattr_get

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Date:   Sun, 7 Apr 2019 22:48:08 -0700
From:   Allison Henderson <allison.henderson@...cle.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     david@...morbit.com, linux-xfs@...r.kernel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-btrfs@...r.kernel.org
Subject: Re: [PATCH 2/4] xfs: unlock inode when xfs_ioctl_setattr_get_trans
 can't get transaction

Looks ok:
Reviewed-by: Allison Henderson <allison.henderson@...cle.com>

On 4/7/19 1:27 PM, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@...cle.com>
> 
> We passed an inode into xfs_ioctl_setattr_get_trans with join_flags
> indicating which locks are held on that inode.  If we can't allocate a
> transaction then we need to unlock the inode before we bail out.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
> ---
>   fs/xfs/xfs_ioctl.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> 
> diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
> index 6ecdbb3af7de..91938c4f3c67 100644
> --- a/fs/xfs/xfs_ioctl.c
> +++ b/fs/xfs/xfs_ioctl.c
> @@ -1142,7 +1142,7 @@ xfs_ioctl_setattr_get_trans(
>   
>   	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 0, 0, 0, &tp);
>   	if (error)
> -		return ERR_PTR(error);
> +		goto out_unlock;
>   
>   	xfs_ilock(ip, XFS_ILOCK_EXCL);
>   	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | join_flags);
>