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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 v22 12/16] xfs: Remove unused xfs_attr_*_args
Date: Mon, 02 Aug 2021 08:56:53 +0530	[thread overview]
Message-ID: <8735rso7b6.fsf@garuda> (raw)
In-Reply-To: <20210727062053.11129-13-allison.henderson@oracle.com>

On 27 Jul 2021 at 11:50, Allison Henderson wrote:
> Remove xfs_attr_set_args, xfs_attr_remove_args, and xfs_attr_trans_roll.
> These high level loops are now driven by the delayed operations code,
> and can be removed.
>
> Additionally collapse in the leaf_bp parameter of xfs_attr_set_iter
> since we only have one caller that passes dac->leaf_bp

Looks good to me.

Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>

>
> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
> ---
>  fs/xfs/libxfs/xfs_attr.c        | 96 +++--------------------------------------
>  fs/xfs/libxfs/xfs_attr.h        | 10 ++---
>  fs/xfs/libxfs/xfs_attr_remote.c |  1 -
>  fs/xfs/xfs_attr_item.c          |  6 +--
>  4 files changed, 10 insertions(+), 103 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index c447c21..ec03a7b 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -244,67 +244,13 @@ xfs_attr_is_shortform(
>  		ip->i_afp->if_nextents == 0);
>  }
>  
> -/*
> - * Checks to see if a delayed attribute transaction should be rolled.  If so,
> - * transaction is finished or rolled as needed.
> - */
> -STATIC int
> -xfs_attr_trans_roll(
> -	struct xfs_delattr_context	*dac)
> -{
> -	struct xfs_da_args		*args = dac->da_args;
> -	int				error;
> -
> -	if (dac->flags & XFS_DAC_DEFER_FINISH) {
> -		/*
> -		 * The caller wants us to finish all the deferred ops so that we
> -		 * avoid pinning the log tail with a large number of deferred
> -		 * ops.
> -		 */
> -		dac->flags &= ~XFS_DAC_DEFER_FINISH;
> -		error = xfs_defer_finish(&args->trans);
> -	} else
> -		error = xfs_trans_roll_inode(&args->trans, args->dp);
> -
> -	return error;
> -}
> -
> -/*
> - * Set the attribute specified in @args.
> - */
> -int
> -xfs_attr_set_args(
> -	struct xfs_da_args		*args)
> -{
> -	struct xfs_buf			*leaf_bp = NULL;
> -	int				error = 0;
> -	struct xfs_delattr_context	dac = {
> -		.da_args	= args,
> -	};
> -
> -	do {
> -		error = xfs_attr_set_iter(&dac, &leaf_bp);
> -		if (error != -EAGAIN)
> -			break;
> -
> -		error = xfs_attr_trans_roll(&dac);
> -		if (error) {
> -			if (leaf_bp)
> -				xfs_trans_brelse(args->trans, leaf_bp);
> -			return error;
> -		}
> -	} while (true);
> -
> -	return error;
> -}
> -
>  STATIC int
>  xfs_attr_sf_addname(
> -	struct xfs_delattr_context	*dac,
> -	struct xfs_buf			**leaf_bp)
> +	struct xfs_delattr_context	*dac)
>  {
>  	struct xfs_da_args		*args = dac->da_args;
>  	struct xfs_inode		*dp = args->dp;
> +	struct xfs_buf			**leaf_bp = &dac->leaf_bp;
>  	int				error = 0;
>  
>  	/*
> @@ -337,7 +283,6 @@ xfs_attr_sf_addname(
>  	 * add.
>  	 */
>  	trace_xfs_attr_sf_addname_return(XFS_DAS_UNINIT, args->dp);
> -	dac->flags |= XFS_DAC_DEFER_FINISH;
>  	return -EAGAIN;
>  }
>  
> @@ -350,10 +295,10 @@ xfs_attr_sf_addname(
>   */
>  int
>  xfs_attr_set_iter(
> -	struct xfs_delattr_context	*dac,
> -	struct xfs_buf			**leaf_bp)
> +	struct xfs_delattr_context	*dac)
>  {
>  	struct xfs_da_args              *args = dac->da_args;
> +	struct xfs_buf			**leaf_bp = &dac->leaf_bp;
>  	struct xfs_inode		*dp = args->dp;
>  	struct xfs_buf			*bp = NULL;
>  	int				forkoff, error = 0;
> @@ -370,7 +315,7 @@ xfs_attr_set_iter(
>  		 * release the hold once we return with a clean transaction.
>  		 */
>  		if (xfs_attr_is_shortform(dp))
> -			return xfs_attr_sf_addname(dac, leaf_bp);
> +			return xfs_attr_sf_addname(dac);
>  		if (*leaf_bp != NULL) {
>  			xfs_trans_bhold_release(args->trans, *leaf_bp);
>  			*leaf_bp = NULL;
> @@ -396,7 +341,6 @@ xfs_attr_set_iter(
>  				 * be a node, so we'll fall down into the node
>  				 * handling code below
>  				 */
> -				dac->flags |= XFS_DAC_DEFER_FINISH;
>  				trace_xfs_attr_set_iter_return(
>  					dac->dela_state, args->dp);
>  				return -EAGAIN;
> @@ -685,32 +629,6 @@ xfs_has_attr(
>  }
>  
>  /*
> - * Remove the attribute specified in @args.
> - */
> -int
> -xfs_attr_remove_args(
> -	struct xfs_da_args	*args)
> -{
> -	int				error;
> -	struct xfs_delattr_context	dac = {
> -		.da_args	= args,
> -	};
> -
> -	do {
> -		error = xfs_attr_remove_iter(&dac);
> -		if (error != -EAGAIN)
> -			break;
> -
> -		error = xfs_attr_trans_roll(&dac);
> -		if (error)
> -			return error;
> -
> -	} while (true);
> -
> -	return error;
> -}
> -
> -/*
>   * Note: If args->value is NULL the attribute will be removed, just like the
>   * Linux ->setattr API.
>   */
> @@ -1272,7 +1190,6 @@ xfs_attr_node_addname(
>  			 * this. dela_state is still unset by this function at
>  			 * this point.
>  			 */
> -			dac->flags |= XFS_DAC_DEFER_FINISH;
>  			trace_xfs_attr_node_addname_return(
>  					dac->dela_state, args->dp);
>  			return -EAGAIN;
> @@ -1287,7 +1204,6 @@ xfs_attr_node_addname(
>  		error = xfs_da3_split(state);
>  		if (error)
>  			goto out;
> -		dac->flags |= XFS_DAC_DEFER_FINISH;
>  	} else {
>  		/*
>  		 * Addition succeeded, update Btree hashvals.
> @@ -1538,7 +1454,6 @@ xfs_attr_remove_iter(
>  			if (error)
>  				goto out;
>  			dac->dela_state = XFS_DAS_RM_NAME;
> -			dac->flags |= XFS_DAC_DEFER_FINISH;
>  			return -EAGAIN;
>  		}
>  
> @@ -1565,7 +1480,6 @@ xfs_attr_remove_iter(
>  			if (error)
>  				goto out;
>  
> -			dac->flags |= XFS_DAC_DEFER_FINISH;
>  			dac->dela_state = XFS_DAS_RM_SHRINK;
>  			trace_xfs_attr_remove_iter_return(
>  					dac->dela_state, args->dp);
> diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h
> index 72b0ea5..c0c92bd3 100644
> --- a/fs/xfs/libxfs/xfs_attr.h
> +++ b/fs/xfs/libxfs/xfs_attr.h
> @@ -457,9 +457,8 @@ enum xfs_delattr_state {
>  /*
>   * Defines for xfs_delattr_context.flags
>   */
> -#define XFS_DAC_DEFER_FINISH		0x01 /* finish the transaction */
> -#define XFS_DAC_LEAF_ADDNAME_INIT	0x02 /* xfs_attr_leaf_addname init*/
> -#define XFS_DAC_DELAYED_OP_INIT		0x04 /* delayed operations init*/
> +#define XFS_DAC_LEAF_ADDNAME_INIT	0x01 /* xfs_attr_leaf_addname init*/
> +#define XFS_DAC_DELAYED_OP_INIT		0x02 /* delayed operations init*/
>  
>  /*
>   * Context used for keeping track of delayed attribute operations
> @@ -517,11 +516,8 @@ bool xfs_attr_is_leaf(struct xfs_inode *ip);
>  int xfs_attr_get_ilocked(struct xfs_da_args *args);
>  int xfs_attr_get(struct xfs_da_args *args);
>  int xfs_attr_set(struct xfs_da_args *args);
> -int xfs_attr_set_args(struct xfs_da_args *args);
> -int xfs_attr_set_iter(struct xfs_delattr_context *dac,
> -		      struct xfs_buf **leaf_bp);
> +int xfs_attr_set_iter(struct xfs_delattr_context *dac);
>  int xfs_has_attr(struct xfs_da_args *args);
> -int xfs_attr_remove_args(struct xfs_da_args *args);
>  int xfs_attr_remove_iter(struct xfs_delattr_context *dac);
>  bool xfs_attr_namecheck(const void *name, size_t length);
>  void xfs_delattr_context_init(struct xfs_delattr_context *dac,
> diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c
> index 1669043..e29c2b9 100644
> --- a/fs/xfs/libxfs/xfs_attr_remote.c
> +++ b/fs/xfs/libxfs/xfs_attr_remote.c
> @@ -695,7 +695,6 @@ xfs_attr_rmtval_remove(
>  	 * the parent
>  	 */
>  	if (!done) {
> -		dac->flags |= XFS_DAC_DEFER_FINISH;
>  		trace_xfs_attr_rmtval_remove_return(dac->dela_state, args->dp);
>  		return -EAGAIN;
>  	}
> diff --git a/fs/xfs/xfs_attr_item.c b/fs/xfs/xfs_attr_item.c
> index 44c44d9..12a0151 100644
> --- a/fs/xfs/xfs_attr_item.c
> +++ b/fs/xfs/xfs_attr_item.c
> @@ -285,7 +285,6 @@ STATIC int
>  xfs_trans_attr_finish_update(
>  	struct xfs_delattr_context	*dac,
>  	struct xfs_attrd_log_item	*attrdp,
> -	struct xfs_buf			**leaf_bp,
>  	uint32_t			op_flags)
>  {
>  	struct xfs_da_args		*args = dac->da_args;
> @@ -300,7 +299,7 @@ xfs_trans_attr_finish_update(
>  	switch (op) {
>  	case XFS_ATTR_OP_FLAGS_SET:
>  		args->op_flags |= XFS_DA_OP_ADDNAME;
> -		error = xfs_attr_set_iter(dac, leaf_bp);
> +		error = xfs_attr_set_iter(dac);
>  		break;
>  	case XFS_ATTR_OP_FLAGS_REMOVE:
>  		ASSERT(XFS_IFORK_Q(args->dp));
> @@ -424,7 +423,7 @@ xfs_attr_finish_item(
>  	 */
>  	dac->da_args->trans = tp;
>  
> -	error = xfs_trans_attr_finish_update(dac, done_item, &dac->leaf_bp,
> +	error = xfs_trans_attr_finish_update(dac, done_item,
>  					     attr->xattri_op_flags);
>  	if (error != -EAGAIN)
>  		kmem_free(attr);
> @@ -640,7 +639,6 @@ xfs_attri_item_recover(
>  	xfs_trans_ijoin(tp, ip, 0);
>  
>  	ret = xfs_trans_attr_finish_update(&attr->xattri_dac, done_item,
> -					   &attr->xattri_dac.leaf_bp,
>  					   attrp->alfi_op_flags);
>  	if (ret == -EAGAIN) {
>  		/* There's more work to do, so add it to this transaction */


-- 
chandan

  parent reply	other threads:[~2021-08-02  3:26 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27  6:20 [PATCH v22 00/16] Delayed Attributes Allison Henderson
2021-07-27  6:20 ` [PATCH v22 01/16] xfs: allow setting and clearing of log incompat feature flags Allison Henderson
2021-07-27 12:24   ` Chandan Babu R
2021-07-28  9:01     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 02/16] xfs: clear log incompat feature bits when the log is idle Allison Henderson
2021-07-27 12:46   ` Chandan Babu R
2021-07-28  9:02     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 03/16] xfs: refactor xfs_iget calls from log intent recovery Allison Henderson
2021-07-28 11:54   ` Chandan Babu R
2021-07-30  9:17     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 04/16] xfs: Return from xfs_attr_set_iter if there are no more rmtblks to process Allison Henderson
2021-07-27 23:30   ` Darrick J. Wong
2021-07-28  9:01     ` Allison Henderson
2021-07-28 12:18   ` Chandan Babu R
2021-07-30  9:17     ` Allison Henderson
2021-08-09 17:24   ` Darrick J. Wong
2021-07-27  6:20 ` [PATCH v22 05/16] xfs: Add state machine tracepoints Allison Henderson
2021-07-28 13:42   ` Chandan Babu R
2021-07-30  9:17     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 06/16] xfs: Rename __xfs_attr_rmtval_remove Allison Henderson
2021-07-29  7:56   ` Chandan Babu R
2021-07-30  9:17     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 07/16] xfs: Handle krealloc errors in xlog_recover_add_to_cont_trans Allison Henderson
2021-07-29  8:27   ` Chandan Babu R
2021-07-30  9:17     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 08/16] xfs: Set up infrastructure for deferred attribute operations Allison Henderson
2021-07-28  0:56   ` Darrick J. Wong
2021-07-28  9:04     ` Allison Henderson
2021-07-30  4:46   ` Chandan Babu R
2021-07-30  9:17     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 09/16] xfs: Implement attr logging and replay Allison Henderson
2021-07-27  9:38   ` Chandan Babu R
2021-07-28  9:01     ` Allison Henderson
2021-07-28  0:39   ` Darrick J. Wong
2021-07-28  9:05     ` Allison Henderson
2021-07-30 12:21   ` Chandan Babu R
2021-08-02  8:33     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 10/16] RFC xfs: Skip flip flags for delayed attrs Allison Henderson
2021-07-28 19:18   ` Darrick J. Wong
2021-07-31  5:11     ` Allison Henderson
2021-08-02  7:47       ` Allison Henderson
2021-07-30 14:40   ` Chandan Babu R
2021-08-02  8:33     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 11/16] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2021-07-28 19:24   ` Darrick J. Wong
2021-08-02  8:18     ` Allison Henderson
2021-07-30 14:58   ` Chandan Babu R
2021-08-02  8:33     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 12/16] xfs: Remove unused xfs_attr_*_args Allison Henderson
2021-07-28 19:31   ` Darrick J. Wong
2021-08-02  8:11     ` Allison Henderson
2021-08-02  3:26   ` Chandan Babu R [this message]
2021-08-02  8:33     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 13/16] xfs: Add delayed attributes error tag Allison Henderson
2021-08-02  3:27   ` Chandan Babu R
2021-08-02  8:33     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 14/16] xfs: Add delattr mount option Allison Henderson
2021-07-28  0:47   ` Darrick J. Wong
2021-07-28  2:13     ` Dave Chinner
2021-07-28  9:05       ` Allison Henderson
2021-07-28  9:02     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 15/16] xfs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson
2021-08-02  3:27   ` Chandan Babu R
2021-08-02  8:33     ` Allison Henderson
2021-07-27  6:20 ` [PATCH v22 16/16] xfs: Add helper function xfs_attr_leaf_addname Allison Henderson
2021-07-28 19:52   ` Darrick J. Wong
2021-08-02  8:18     ` Allison Henderson

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