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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 v24 02/11] xfs: Capture buffers for delayed ops
Date: Fri, 27 Aug 2021 17:03:28 +0530	[thread overview]
Message-ID: <87k0k79l6f.fsf@debian-BULLSEYE-live-builder-AMD64> (raw)
In-Reply-To: <20210824224434.968720-3-allison.henderson@oracle.com>

On 25 Aug 2021 at 04:14, Allison Henderson wrote:
> This patch enables delayed operations to capture held buffers with in
> the xfs_defer_capture. Buffers are then rejoined to the new
> transaction in xlog_finish_defer_ops
>

Looks good to me.

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

> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
> ---
>  fs/xfs/libxfs/xfs_defer.c  | 7 ++++++-
>  fs/xfs/libxfs/xfs_defer.h  | 4 +++-
>  fs/xfs/xfs_bmap_item.c     | 2 +-
>  fs/xfs/xfs_buf.c           | 1 +
>  fs/xfs/xfs_buf.h           | 1 +
>  fs/xfs/xfs_extfree_item.c  | 2 +-
>  fs/xfs/xfs_log_recover.c   | 7 +++++++
>  fs/xfs/xfs_refcount_item.c | 2 +-
>  fs/xfs/xfs_rmap_item.c     | 2 +-
>  9 files changed, 22 insertions(+), 6 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c
> index eff4a127188e..d1d09b6aca55 100644
> --- a/fs/xfs/libxfs/xfs_defer.c
> +++ b/fs/xfs/libxfs/xfs_defer.c
> @@ -639,6 +639,7 @@ xfs_defer_ops_capture(
>  	dfc = kmem_zalloc(sizeof(*dfc), KM_NOFS);
>  	INIT_LIST_HEAD(&dfc->dfc_list);
>  	INIT_LIST_HEAD(&dfc->dfc_dfops);
> +	INIT_LIST_HEAD(&dfc->dfc_buffers);
>  
>  	xfs_defer_create_intents(tp);
>  
> @@ -690,7 +691,8 @@ int
>  xfs_defer_ops_capture_and_commit(
>  	struct xfs_trans		*tp,
>  	struct xfs_inode		*capture_ip,
> -	struct list_head		*capture_list)
> +	struct list_head		*capture_list,
> +	struct xfs_buf			*bp)
>  {
>  	struct xfs_mount		*mp = tp->t_mountp;
>  	struct xfs_defer_capture	*dfc;
> @@ -703,6 +705,9 @@ xfs_defer_ops_capture_and_commit(
>  	if (!dfc)
>  		return xfs_trans_commit(tp);
>  
> +	if (bp && bp->b_transp == tp)
> +		list_add_tail(&bp->b_delay, &dfc->dfc_buffers);
> +
>  	/* Commit the transaction and add the capture structure to the list. */
>  	error = xfs_trans_commit(tp);
>  	if (error) {
> diff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h
> index 05472f71fffe..739f70d72fd5 100644
> --- a/fs/xfs/libxfs/xfs_defer.h
> +++ b/fs/xfs/libxfs/xfs_defer.h
> @@ -74,6 +74,7 @@ struct xfs_defer_capture {
>  
>  	/* Deferred ops state saved from the transaction. */
>  	struct list_head	dfc_dfops;
> +	struct list_head	dfc_buffers;
>  	unsigned int		dfc_tpflags;
>  
>  	/* Block reservations for the data and rt devices. */
> @@ -95,7 +96,8 @@ struct xfs_defer_capture {
>   * This doesn't normally happen except log recovery.
>   */
>  int xfs_defer_ops_capture_and_commit(struct xfs_trans *tp,
> -		struct xfs_inode *capture_ip, struct list_head *capture_list);
> +		struct xfs_inode *capture_ip, struct list_head *capture_list,
> +		struct xfs_buf *bp);
>  void xfs_defer_ops_continue(struct xfs_defer_capture *d, struct xfs_trans *tp,
>  		struct xfs_inode **captured_ipp);
>  void xfs_defer_ops_release(struct xfs_mount *mp, struct xfs_defer_capture *d);
> diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
> index 03159970133f..51ba8ee368ca 100644
> --- a/fs/xfs/xfs_bmap_item.c
> +++ b/fs/xfs/xfs_bmap_item.c
> @@ -532,7 +532,7 @@ xfs_bui_item_recover(
>  	 * Commit transaction, which frees the transaction and saves the inode
>  	 * for later replay activities.
>  	 */
> -	error = xfs_defer_ops_capture_and_commit(tp, ip, capture_list);
> +	error = xfs_defer_ops_capture_and_commit(tp, ip, capture_list, NULL);
>  	if (error)
>  		goto err_unlock;
>  
> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> index 047bd6e3f389..29b4655a0a65 100644
> --- a/fs/xfs/xfs_buf.c
> +++ b/fs/xfs/xfs_buf.c
> @@ -233,6 +233,7 @@ _xfs_buf_alloc(
>  	init_completion(&bp->b_iowait);
>  	INIT_LIST_HEAD(&bp->b_lru);
>  	INIT_LIST_HEAD(&bp->b_list);
> +	INIT_LIST_HEAD(&bp->b_delay);
>  	INIT_LIST_HEAD(&bp->b_li_list);
>  	sema_init(&bp->b_sema, 0); /* held, no waiters */
>  	spin_lock_init(&bp->b_lock);
> diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
> index 6b0200b8007d..c51445705dc6 100644
> --- a/fs/xfs/xfs_buf.h
> +++ b/fs/xfs/xfs_buf.h
> @@ -151,6 +151,7 @@ struct xfs_buf {
>  	int			b_io_error;	/* internal IO error state */
>  	wait_queue_head_t	b_waiters;	/* unpin waiters */
>  	struct list_head	b_list;
> +	struct list_head	b_delay;	/* delayed operations list */
>  	struct xfs_perag	*b_pag;		/* contains rbtree root */
>  	struct xfs_mount	*b_mount;
>  	struct xfs_buftarg	*b_target;	/* buffer target (device) */
> diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
> index 3f8a0713573a..046f21338c48 100644
> --- a/fs/xfs/xfs_extfree_item.c
> +++ b/fs/xfs/xfs_extfree_item.c
> @@ -637,7 +637,7 @@ xfs_efi_item_recover(
>  
>  	}
>  
> -	return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list);
> +	return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list, NULL);
>  
>  abort_error:
>  	xfs_trans_cancel(tp);
> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
> index 10562ecbd9ea..6a3c0bb16b69 100644
> --- a/fs/xfs/xfs_log_recover.c
> +++ b/fs/xfs/xfs_log_recover.c
> @@ -2465,6 +2465,7 @@ xlog_finish_defer_ops(
>  	struct list_head	*capture_list)
>  {
>  	struct xfs_defer_capture *dfc, *next;
> +	struct xfs_buf		*bp, *bnext;
>  	struct xfs_trans	*tp;
>  	struct xfs_inode	*ip;
>  	int			error = 0;
> @@ -2489,6 +2490,12 @@ xlog_finish_defer_ops(
>  			return error;
>  		}
>  
> +		list_for_each_entry_safe(bp, bnext, &dfc->dfc_buffers, b_delay) {
> +			xfs_trans_bjoin(tp, bp);
> +			xfs_trans_bhold(tp, bp);
> +			list_del_init(&bp->b_delay);
> +		}
> +
>  		/*
>  		 * Transfer to this new transaction all the dfops we captured
>  		 * from recovering a single intent item.
> diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
> index 46904b793bd4..a6e7351ca4f9 100644
> --- a/fs/xfs/xfs_refcount_item.c
> +++ b/fs/xfs/xfs_refcount_item.c
> @@ -557,7 +557,7 @@ xfs_cui_item_recover(
>  	}
>  
>  	xfs_refcount_finish_one_cleanup(tp, rcur, error);
> -	return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list);
> +	return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list, NULL);
>  
>  abort_error:
>  	xfs_refcount_finish_one_cleanup(tp, rcur, error);
> diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
> index 5f0695980467..8c70a4af80a9 100644
> --- a/fs/xfs/xfs_rmap_item.c
> +++ b/fs/xfs/xfs_rmap_item.c
> @@ -587,7 +587,7 @@ xfs_rui_item_recover(
>  	}
>  
>  	xfs_rmap_finish_one_cleanup(tp, rcur, error);
> -	return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list);
> +	return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list, NULL);
>  
>  abort_error:
>  	xfs_rmap_finish_one_cleanup(tp, rcur, error);


-- 
chandan

  reply	other threads:[~2021-08-27 11:33 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-24 22:44 [PATCH v24 00/11] Log Attribute Replay Allison Henderson
2021-08-24 22:44 ` [PATCH v24 01/11] xfs: Return from xfs_attr_set_iter if there are no more rmtblks to process Allison Henderson
2021-08-24 22:44 ` [PATCH v24 02/11] xfs: Capture buffers for delayed ops Allison Henderson
2021-08-27 11:33   ` Chandan Babu R [this message]
2021-08-31 18:03     ` Allison Henderson
2021-08-30 17:44   ` Darrick J. Wong
2021-08-31 17:50     ` Allison Henderson
2021-09-18  0:02       ` Darrick J. Wong
2021-08-24 22:44 ` [PATCH v24 03/11] xfs: Set up infrastructure for log atrribute replay Allison Henderson
2021-08-27 14:17   ` Chandan Babu R
2021-08-31 18:03     ` Allison Henderson
2021-08-31  0:48   ` Dave Chinner
2021-08-31 19:03     ` Allison Henderson
2021-08-31 21:52   ` Dave Chinner
2021-09-01  5:34     ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 04/11] xfs: Implement attr logging and replay Allison Henderson
2021-08-30  7:47   ` Chandan Babu R
2021-08-31 18:11     ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 05/11] RFC xfs: Skip flip flags for delayed attrs Allison Henderson
2021-08-30 10:15   ` Chandan Babu R
2021-08-31 18:11     ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 06/11] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2021-08-30 10:27   ` Chandan Babu R
2021-08-31 18:12     ` Allison Henderson
2021-09-01  3:47   ` Dave Chinner
2021-09-01  5:34     ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 07/11] xfs: Remove unused xfs_attr_*_args Allison Henderson
2021-08-24 22:44 ` [PATCH v24 08/11] xfs: Add log attribute error tag Allison Henderson
2021-08-24 22:44 ` [PATCH v24 09/11] xfs: Add larp debug option Allison Henderson
2021-08-30 12:03   ` Chandan Babu R
2021-08-31 18:12     ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 10/11] xfs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson
2021-08-24 22:44 ` [PATCH v24 11/11] xfs: Add helper function xfs_attr_leaf_addname Allison Henderson
2021-08-30 14:17   ` Chandan Babu R
2021-08-31 18:13     ` Allison Henderson
2021-08-31  0:20 ` [PATCH v24 00/11] Log Attribute Replay Dave Chinner
2021-08-31 18:27   ` Allison Henderson
2021-09-01  6:29     ` Dave Chinner
2021-09-01  7:30 ` [PATCH 0/5] xfs: various logged attribute fixes Dave Chinner
2021-09-01  7:30   ` [PATCH 1/5] xfs: fix fallthrough annotations in xfs_attr_set_iter() Dave Chinner
2021-09-01  7:30   ` [PATCH 2/5] xfs: fix flags passed to kvmalloc() by xfs_attri_init() Dave Chinner
2021-09-01  7:30   ` [PATCH 3/5] xfs: hide log iovec alignment constraints Dave Chinner
2021-09-01  7:30   ` [PATCH 4/5] xfs: fix attribute log iovec sizing Dave Chinner
2021-09-01  7:30   ` [PATCH 5/5] [RFC] xfs: don't commit the first deferred transaction without intents Dave Chinner
2021-09-01 21:43   ` [PATCH 0/5] xfs: various logged attribute fixes Allison Henderson

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