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From: "Darrick J. Wong" <djwong@kernel.org>
To: Allison Henderson <allison.henderson@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH v15 19/22] xfs: Remove unused xfs_attr_*_args
Date: Thu, 25 Feb 2021 20:58:55 -0800	[thread overview]
Message-ID: <20210226045855.GX7272@magnolia> (raw)
In-Reply-To: <20210218165348.4754-20-allison.henderson@oracle.com>

On Thu, Feb 18, 2021 at 09:53:45AM -0700, 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
> 
> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>

Looks good to me,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

--D

> ---
>  fs/xfs/libxfs/xfs_attr.c        | 97 +++--------------------------------------
>  fs/xfs/libxfs/xfs_attr.h        | 10 ++---
>  fs/xfs/libxfs/xfs_attr_remote.c |  1 -
>  fs/xfs/xfs_attr_item.c          |  8 ++--
>  4 files changed, 11 insertions(+), 105 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index cec861e..8b62447 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -63,8 +63,6 @@ STATIC int xfs_attr_node_hasname(xfs_da_args_t *args,
>  				 struct xfs_da_state **state);
>  STATIC int xfs_attr_fillstate(xfs_da_state_t *state);
>  STATIC int xfs_attr_refillstate(xfs_da_state_t *state);
> -int xfs_attr_set_iter(struct xfs_delattr_context *dac,
> -		      struct xfs_buf **leaf_bp);
>  
>  int
>  xfs_inode_hasattr(
> @@ -223,67 +221,13 @@ xfs_attr_is_shortform(
>  		ip->i_afp->if_nextents == 0);
>  }
>  
> -/*
> - * Checks to see if a delayed attribute transaction should be rolled.  If so,
> - * also checks for a defer finish.  Transaction is finished and rolled as
> - * needed, and returns true of false if the delayed operation should continue.
> - */
> -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);
> -		if (error)
> -			return error;
> -	} 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)
> -			return error;
> -	} while (true);
> -
> -	return error;
> -}
> -
>  STATIC int
>  xfs_attr_set_fmt(
> -	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;
>  
>  	/*
> @@ -316,7 +260,6 @@ xfs_attr_set_fmt(
>  	 * add.
>  	 */
>  	trace_xfs_attr_set_fmt_return(XFS_DAS_UNINIT, args->dp);
> -	dac->flags |= XFS_DAC_DEFER_FINISH;
>  	return -EAGAIN;
>  }
>  
> @@ -329,10 +272,10 @@ xfs_attr_set_fmt(
>   */
>  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;
>  	struct xfs_da_state		*state = NULL;
> @@ -344,7 +287,7 @@ xfs_attr_set_iter(
>  	switch (dac->dela_state) {
>  	case XFS_DAS_UNINIT:
>  		if (xfs_attr_is_shortform(dp))
> -			return xfs_attr_set_fmt(dac, leaf_bp);
> +			return xfs_attr_set_fmt(dac);
>  
>  		/*
>  		 * After a shortform to leaf conversion, we need to hold the
> @@ -381,7 +324,6 @@ 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;
> @@ -687,32 +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;
> -}
> -
> -/*
> - * Remove the attribute specified in @args.
>   *
>   * This function may return -EAGAIN to signal that the transaction needs to be
>   * rolled.  Callers should continue calling this function until they receive a
> @@ -1297,7 +1213,6 @@ 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;
> @@ -1312,7 +1227,6 @@ 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.
> @@ -1599,7 +1513,6 @@ xfs_attr_node_removename_iter(
>  			if (error)
>  				goto out;
>  
> -			dac->flags |= XFS_DAC_DEFER_FINISH;
>  			dac->dela_state = XFS_DAS_RM_SHRINK;
>  			trace_xfs_attr_node_removename_iter_return(
>  					dac->dela_state, args->dp);
> diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h
> index 4abf02c..f82c0b1 100644
> --- a/fs/xfs/libxfs/xfs_attr.h
> +++ b/fs/xfs/libxfs/xfs_attr.h
> @@ -393,9 +393,8 @@ 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
> @@ -452,11 +451,8 @@ int xfs_inode_hasattr(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 b6554a3..78bb552 100644
> --- a/fs/xfs/libxfs/xfs_attr_remote.c
> +++ b/fs/xfs/libxfs/xfs_attr_remote.c
> @@ -762,7 +762,6 @@ xfs_attr_rmtval_remove(
>  	 * by 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 8c8f72d..13b289b 100644
> --- a/fs/xfs/xfs_attr_item.c
> +++ b/fs/xfs/xfs_attr_item.c
> @@ -291,7 +291,6 @@ int
>  xfs_trans_attr(
>  	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;
> @@ -304,7 +303,7 @@ xfs_trans_attr(
>  	switch (op_flags) {
>  	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));
> @@ -428,8 +427,7 @@ xfs_attr_finish_item(
>  	 */
>  	dac->da_args->trans = tp;
>  
> -	error = xfs_trans_attr(dac, done_item, &dac->leaf_bp,
> -			       attr->xattri_op_flags);
> +	error = xfs_trans_attr(dac, done_item, attr->xattri_op_flags);
>  	if (error != -EAGAIN)
>  		kmem_free(attr);
>  
> @@ -625,7 +623,7 @@ xfs_attri_item_recover(
>  	xfs_trans_ijoin(args.trans, ip, 0);
>  
>  	error = xfs_trans_attr(&attr.xattri_dac, done_item,
> -			       &attr.xattri_dac.leaf_bp, attrp->alfi_op_flags);
> +			       attrp->alfi_op_flags);
>  	if (error == -EAGAIN) {
>  		/*
>  		 * There's more work to do, so make a new xfs_attr_item and add
> -- 
> 2.7.4
> 

  reply	other threads:[~2021-02-26  4:59 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-18 16:53 [PATCH v15 00/22] xfs: Delayed Attributes Allison Henderson
2021-02-18 16:53 ` [PATCH v15 01/22] xfs: Add helper xfs_attr_node_remove_step Allison Henderson
2021-02-24 15:03   ` Brian Foster
2021-02-25  6:17     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 02/22] xfs: Add xfs_attr_node_remove_cleanup Allison Henderson
2021-02-24 15:03   ` Brian Foster
2021-02-25  6:17     ` Allison Henderson
2021-02-26  3:00   ` Darrick J. Wong
2021-02-27  0:48     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 03/22] xfs: Hoist transaction handling in xfs_attr_node_remove_step Allison Henderson
2021-02-24 15:04   ` Brian Foster
2021-02-25  6:18     ` Allison Henderson
2021-02-26  3:02   ` Darrick J. Wong
2021-02-27  0:48     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 04/22] xfs: Hoist xfs_attr_set_shortform Allison Henderson
2021-02-24 15:04   ` Brian Foster
2021-02-25  6:18     ` Allison Henderson
2021-02-26  3:03   ` Darrick J. Wong
2021-02-27  0:48     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 05/22] xfs: Add helper xfs_attr_set_fmt Allison Henderson
2021-02-24 15:04   ` Brian Foster
2021-02-25  6:18     ` Allison Henderson
2021-02-26  3:07   ` Darrick J. Wong
2021-02-27  0:49     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 06/22] xfs: Separate xfs_attr_node_addname and xfs_attr_node_addname_work Allison Henderson
2021-02-24 15:04   ` Brian Foster
2021-02-25  6:18     ` Allison Henderson
2021-02-26  4:02   ` Darrick J. Wong
2021-02-27  0:54     ` Allison Henderson
2021-03-01 18:00       ` Darrick J. Wong
2021-03-02  8:26         ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 07/22] xfs: Add helper xfs_attr_node_addname_find_attr Allison Henderson
2021-02-24 15:04   ` Brian Foster
2021-02-25  6:18     ` Allison Henderson
2021-02-26  4:06   ` Darrick J. Wong
2021-02-27  0:54     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 08/22] xfs: Hoist xfs_attr_node_addname Allison Henderson
2021-02-24 18:42   ` Brian Foster
2021-02-25  6:19     ` Allison Henderson
2021-03-01 18:05   ` Darrick J. Wong
2021-03-02  8:26     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 09/22] xfs: Hoist xfs_attr_leaf_addname Allison Henderson
2021-02-24 18:42   ` Brian Foster
2021-02-25  6:19     ` Allison Henderson
2021-02-25 14:20       ` Brian Foster
2021-03-01 18:19   ` Darrick J. Wong
2021-03-02  8:26     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 10/22] xfs: Hoist node transaction handling Allison Henderson
2021-02-24 18:43   ` Brian Foster
2021-02-25  6:20     ` Allison Henderson
2021-03-01 18:20   ` Darrick J. Wong
2021-03-02  8:26     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 11/22] xfs: Add delay ready attr remove routines Allison Henderson
2021-02-24 18:45   ` Brian Foster
2021-02-25  7:01     ` Allison Henderson
2021-02-25 14:22       ` Brian Foster
2021-02-25 22:28         ` Allison Henderson
2021-02-28 15:39           ` Brian Foster
2021-03-02  8:26             ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 12/22] xfs: Add delay ready attr set routines Allison Henderson
2021-03-02  1:39   ` Darrick J. Wong
2021-02-18 16:53 ` [PATCH v15 13/22] xfs: Add state machine tracepoints Allison Henderson
2021-02-26  5:06   ` Darrick J. Wong
2021-02-27  0:57     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 14/22] xfs: Rename __xfs_attr_rmtval_remove Allison Henderson
2021-02-18 16:53 ` [PATCH v15 15/22] xfs: Handle krealloc errors in xlog_recover_add_to_cont_trans Allison Henderson
2021-02-26  5:06   ` Darrick J. Wong
2021-02-27  0:57     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 16/22] xfs: Set up infastructure for deferred attribute operations Allison Henderson
2021-02-26  4:58   ` Darrick J. Wong
2021-02-27  0:56     ` Allison Henderson
2021-03-02  7:13       ` Allison Henderson
2021-03-03 11:50         ` Brian Foster
2021-02-18 16:53 ` [PATCH v15 17/22] xfs: Skip flip flags for delayed attrs Allison Henderson
2021-02-26  5:02   ` Darrick J. Wong
2021-02-27  0:56     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 18/22] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2021-02-26  5:00   ` Darrick J. Wong
2021-02-27  0:57     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 19/22] xfs: Remove unused xfs_attr_*_args Allison Henderson
2021-02-26  4:58   ` Darrick J. Wong [this message]
2021-02-27  0:57     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 20/22] xfs: Add delayed attributes error tag Allison Henderson
2021-02-18 16:53 ` [PATCH v15 21/22] xfs: Add delattr mount option Allison Henderson
2021-02-26  4:29   ` Darrick J. Wong
2021-02-27  0:55     ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 22/22] xfs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson

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