linux-ext4 - Re: [PATCH 2/8] xfs: unlock inode when xfs_ioctl_setattr_get

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Message-ID: <20190426181749.GC34536@bfoster>
Date:   Fri, 26 Apr 2019 14:17:52 -0400
From:   Brian Foster <bfoster@...hat.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH 2/8] xfs: unlock inode when xfs_ioctl_setattr_get_trans
 can't get transaction

On Wed, Apr 17, 2019 at 12:04:39PM -0700, 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>
> ---

Reviewed-by: Brian Foster <bfoster@...hat.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 ae615a79b266..21d6f433c375 100644
> --- a/fs/xfs/xfs_ioctl.c
> +++ b/fs/xfs/xfs_ioctl.c
> @@ -1153,7 +1153,7 @@ 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);
>