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From: Chandan Babu R <chandanrlinux@gmail.com>
To: Allison Henderson <allison.henderson@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH v14 03/15] xfs: Hoist transaction handling in xfs_attr_node_remove_step
Date: Mon, 21 Dec 2020 12:15:43 +0530	[thread overview]
Message-ID: <4105761.l86rmMIxAI@garuda> (raw)
In-Reply-To: <20201218072917.16805-4-allison.henderson@oracle.com>

On Fri, 18 Dec 2020 00:29:05 -0700, Allison Henderson wrote:
> This patch hoists transaction handling in xfs_attr_node_remove to

... "transaction handling in xfs_attr_node_removename"

> xfs_attr_node_remove_step.  This will help keep transaction handling in
> higher level functions instead of buried in subfunctions when we
> introduce delay attributes
> 
> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
> ---
>  fs/xfs/libxfs/xfs_attr.c | 43 ++++++++++++++++++++++---------------------
>  1 file changed, 22 insertions(+), 21 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index e93d76a..1969b88 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -1251,7 +1251,7 @@ xfs_attr_node_remove_step(
>  	struct xfs_da_args	*args,
>  	struct xfs_da_state	*state)
>  {
> -	int			retval, error;
> +	int			error;
>  	struct xfs_inode	*dp = args->dp;

The declaration of "dp" variable can be removed since there are no references
to it left after the removal of the following hunk.

>  
>  
> @@ -1265,25 +1265,6 @@ xfs_attr_node_remove_step(
>  		if (error)
>  			return error;
>  	}
> -	retval = xfs_attr_node_remove_cleanup(args, state);
> -
> -	/*
> -	 * Check to see if the tree needs to be collapsed.
> -	 */
> -	if (retval && (state->path.active > 1)) {
> -		error = xfs_da3_join(state);
> -		if (error)
> -			return error;
> -		error = xfs_defer_finish(&args->trans);
> -		if (error)
> -			return error;
> -		/*
> -		 * Commit the Btree join operation and start a new trans.
> -		 */
> -		error = xfs_trans_roll_inode(&args->trans, dp);
> -		if (error)
> -			return error;
> -	}
>  
>  	return error;
>  }
> @@ -1299,7 +1280,7 @@ xfs_attr_node_removename(
>  	struct xfs_da_args	*args)
>  {
>  	struct xfs_da_state	*state = NULL;
> -	int			error;
> +	int			retval, error;
>  	struct xfs_inode	*dp = args->dp;
>  
>  	trace_xfs_attr_node_removename(args);
> @@ -1312,6 +1293,26 @@ xfs_attr_node_removename(
>  	if (error)
>  		goto out;
>  
> +	retval = xfs_attr_node_remove_cleanup(args, state);
> +
> +	/*
> +	 * Check to see if the tree needs to be collapsed.
> +	 */
> +	if (retval && (state->path.active > 1)) {
> +		error = xfs_da3_join(state);
> +		if (error)
> +			return error;

When a non-zero value is returned by xfs_da3_join(), the code would fail to
free the memory pointed to by "state". Same review comment applies to the two
return statements below.

> +		error = xfs_defer_finish(&args->trans);
> +		if (error)
> +			return error;
> +		/*
> +		 * Commit the Btree join operation and start a new trans.
> +		 */
> +		error = xfs_trans_roll_inode(&args->trans, dp);
> +		if (error)
> +			return error;
> +	}
> +
>  	/*
>  	 * If the result is small enough, push it all into the inode.
>  	 */
> 


-- 
chandan




  reply	other threads:[~2020-12-21  6:46 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-18  7:29 [PATCH v14 00/15] xfs: Delayed Attributes Allison Henderson
2020-12-18  7:29 ` [PATCH v14 01/15] xfs: Add helper xfs_attr_node_remove_step Allison Henderson
2020-12-21  6:45   ` Chandan Babu R
2020-12-21 23:48     ` Allison Henderson
2020-12-22 16:50   ` Brian Foster
2020-12-18  7:29 ` [PATCH v14 02/15] xfs: Add xfs_attr_node_remove_cleanup Allison Henderson
2020-12-21  6:45   ` Chandan Babu R
2020-12-21 23:47     ` Allison Henderson
2020-12-22 16:50   ` Brian Foster
2020-12-18  7:29 ` [PATCH v14 03/15] xfs: Hoist transaction handling in xfs_attr_node_remove_step Allison Henderson
2020-12-21  6:45   ` Chandan Babu R [this message]
2020-12-21 21:51     ` Allison Henderson
2020-12-18  7:29 ` [PATCH v14 04/15] xfs: Add delay ready attr remove routines Allison Henderson
2020-12-22  7:22   ` Chandan Babu R
2020-12-22 15:41     ` Allison Henderson
2020-12-23  4:05       ` Chandan Babu R
2020-12-22 17:11   ` Brian Foster
2020-12-22 17:20     ` Brian Foster
2020-12-22 18:44       ` Brian Foster
2020-12-23  5:20         ` Allison Henderson
2020-12-23 14:16           ` Brian Foster
2020-12-24  8:23             ` Allison Henderson
2021-01-04 17:52               ` Brian Foster
2021-01-05 18:10                 ` Allison Henderson
2021-01-06 14:25                   ` Brian Foster
2020-12-18  7:29 ` [PATCH v14 05/15] xfs: Add delay ready attr set routines Allison Henderson
2020-12-23  8:00   ` Chandan Babu R
2020-12-23 16:31     ` Allison Henderson
2020-12-18  7:29 ` [PATCH v14 06/15] xfs: Add state machine tracepoints Allison Henderson
2021-01-05  4:50   ` Chandan Babu R
2021-01-05 21:06     ` Allison Henderson
2021-01-05  5:28   ` Darrick J. Wong
2021-01-05 21:07     ` Allison Henderson
2020-12-18  7:29 ` [PATCH v14 07/15] xfs: Rename __xfs_attr_rmtval_remove Allison Henderson
2020-12-18  7:29 ` [PATCH v14 08/15] xfs: Handle krealloc errors in xlog_recover_add_to_cont_trans Allison Henderson
2021-01-05  5:38   ` Darrick J. Wong
2021-01-05 20:15     ` Allison Henderson
2020-12-18  7:29 ` [PATCH v14 09/15] xfs: Set up infastructure for deferred attribute operations Allison Henderson
2020-12-18  7:29 ` [PATCH v14 10/15] xfs: Skip flip flags for delayed attrs Allison Henderson
2020-12-18  7:29 ` [PATCH v14 11/15] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2020-12-18  7:29 ` [PATCH v14 12/15] xfs: Remove unused xfs_attr_*_args Allison Henderson
2020-12-18  7:29 ` [PATCH v14 13/15] xfs: Add delayed attributes error tag Allison Henderson
2020-12-18  7:29 ` [PATCH v14 14/15] xfs: Add delattr mount option Allison Henderson
2021-01-05  5:46   ` Darrick J. Wong
2021-01-05 21:49     ` Allison Henderson
2020-12-18  7:29 ` [PATCH v14 15/15] xfs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson
2021-01-05  5:47   ` Darrick J. Wong
2021-01-05 21:07     ` Allison Henderson

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