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From: Chandan Rajendra <chandan@linux.ibm.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 02/21] xfs: refactor log recovery item dispatch for pass2 readhead functions
Date: Fri, 01 May 2020 17:40:02 +0530	[thread overview]
Message-ID: <4890365.NoYZ9p2UQH@localhost.localdomain> (raw)
In-Reply-To: <158820766792.467894.3995732139270270438.stgit@magnolia>

On Thursday, April 30, 2020 6:17 AM Darrick J. Wong wrote: 
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> Move the pass2 readhead code into the per-item source code files and use
> the dispatch function to call them.
>

Readahead is issued for buf, inode and dquot items similar to how it is done in
the present code.

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

> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
>  fs/xfs/libxfs/xfs_log_recover.h |    6 ++
>  fs/xfs/xfs_buf_item_recover.c   |   11 +++++
>  fs/xfs/xfs_dquot_item.c         |   34 ++++++++++++++
>  fs/xfs/xfs_inode_item_recover.c |   19 ++++++++
>  fs/xfs/xfs_log_recover.c        |   95 +--------------------------------------
>  5 files changed, 73 insertions(+), 92 deletions(-)
> 
> 
> diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h
> index 38ae9c371edb..1463eba47254 100644
> --- a/fs/xfs/libxfs/xfs_log_recover.h
> +++ b/fs/xfs/libxfs/xfs_log_recover.h
> @@ -29,6 +29,9 @@ struct xlog_recover_item_type {
>  	 * values mean.
>  	 */
>  	enum xlog_recover_reorder (*reorder_fn)(struct xlog_recover_item *item);
> +
> +	/* Start readahead for pass2, if provided. */
> +	void (*ra_pass2_fn)(struct xlog *log, struct xlog_recover_item *item);
>  };
>  
>  extern const struct xlog_recover_item_type xlog_icreate_item_type;
> @@ -90,4 +93,7 @@ struct xlog_recover {
>  #define	XLOG_RECOVER_PASS1	1
>  #define	XLOG_RECOVER_PASS2	2
>  
> +void xlog_buf_readahead(struct xlog *log, xfs_daddr_t blkno, uint len,
> +		const struct xfs_buf_ops *ops);
> +
>  #endif	/* __XFS_LOG_RECOVER_H__ */
> diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c
> index 07ddf58209c3..c756b8e55fde 100644
> --- a/fs/xfs/xfs_buf_item_recover.c
> +++ b/fs/xfs/xfs_buf_item_recover.c
> @@ -32,6 +32,17 @@ xlog_buf_reorder_fn(
>  	return XLOG_REORDER_BUFFER_LIST;
>  }
>  
> +STATIC void
> +xlog_recover_buffer_ra_pass2(
> +	struct xlog                     *log,
> +	struct xlog_recover_item        *item)
> +{
> +	struct xfs_buf_log_format	*buf_f = item->ri_buf[0].i_addr;
> +
> +	xlog_buf_readahead(log, buf_f->blf_blkno, buf_f->blf_len, NULL);
> +}
> +
>  const struct xlog_recover_item_type xlog_buf_item_type = {
>  	.reorder_fn		= xlog_buf_reorder_fn,
> +	.ra_pass2_fn		= xlog_recover_buffer_ra_pass2,
>  };
> diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
> index 3bd5b6c7e235..2a05d1239423 100644
> --- a/fs/xfs/xfs_dquot_item.c
> +++ b/fs/xfs/xfs_dquot_item.c
> @@ -386,7 +386,41 @@ xfs_qm_qoff_logitem_init(
>  	return qf;
>  }
>  
> +STATIC void
> +xlog_recover_dquot_ra_pass2(
> +	struct xlog			*log,
> +	struct xlog_recover_item	*item)
> +{
> +	struct xfs_mount	*mp = log->l_mp;
> +	struct xfs_disk_dquot	*recddq;
> +	struct xfs_dq_logformat	*dq_f;
> +	uint			type;
> +
> +	if (mp->m_qflags == 0)
> +		return;
> +
> +	recddq = item->ri_buf[1].i_addr;
> +	if (recddq == NULL)
> +		return;
> +	if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
> +		return;
> +
> +	type = recddq->d_flags & (XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
> +	ASSERT(type);
> +	if (log->l_quotaoffs_flag & type)
> +		return;
> +
> +	dq_f = item->ri_buf[0].i_addr;
> +	ASSERT(dq_f);
> +	ASSERT(dq_f->qlf_len == 1);
> +
> +	xlog_buf_readahead(log, dq_f->qlf_blkno,
> +			XFS_FSB_TO_BB(mp, dq_f->qlf_len),
> +			&xfs_dquot_buf_ra_ops);
> +}
> +
>  const struct xlog_recover_item_type xlog_dquot_item_type = {
> +	.ra_pass2_fn		= xlog_recover_dquot_ra_pass2,
>  };
>  
>  const struct xlog_recover_item_type xlog_quotaoff_item_type = {
> diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c
> index 478f0a5c08ab..d97d8caa4652 100644
> --- a/fs/xfs/xfs_inode_item_recover.c
> +++ b/fs/xfs/xfs_inode_item_recover.c
> @@ -21,5 +21,24 @@
>  #include "xfs_log_priv.h"
>  #include "xfs_log_recover.h"
>  
> +STATIC void
> +xlog_recover_inode_ra_pass2(
> +	struct xlog                     *log,
> +	struct xlog_recover_item        *item)
> +{
> +	if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
> +		struct xfs_inode_log_format	*ilfp = item->ri_buf[0].i_addr;
> +
> +		xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
> +				   &xfs_inode_buf_ra_ops);
> +	} else {
> +		struct xfs_inode_log_format_32	*ilfp = item->ri_buf[0].i_addr;
> +
> +		xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
> +				   &xfs_inode_buf_ra_ops);
> +	}
> +}
> +
>  const struct xlog_recover_item_type xlog_inode_item_type = {
> +	.ra_pass2_fn		= xlog_recover_inode_ra_pass2,
>  };
> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
> index 8ab107680883..b61323cc5a11 100644
> --- a/fs/xfs/xfs_log_recover.c
> +++ b/fs/xfs/xfs_log_recover.c
> @@ -2045,7 +2045,7 @@ xlog_put_buffer_cancelled(
>  	return true;
>  }
>  
> -static void
> +void
>  xlog_buf_readahead(
>  	struct xlog		*log,
>  	xfs_daddr_t		blkno,
> @@ -3912,96 +3912,6 @@ xlog_recover_do_icreate_pass2(
>  				     length, be32_to_cpu(icl->icl_gen));
>  }
>  
> -STATIC void
> -xlog_recover_buffer_ra_pass2(
> -	struct xlog                     *log,
> -	struct xlog_recover_item        *item)
> -{
> -	struct xfs_buf_log_format	*buf_f = item->ri_buf[0].i_addr;
> -
> -	xlog_buf_readahead(log, buf_f->blf_blkno, buf_f->blf_len, NULL);
> -}
> -
> -STATIC void
> -xlog_recover_inode_ra_pass2(
> -	struct xlog                     *log,
> -	struct xlog_recover_item        *item)
> -{
> -	if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
> -		struct xfs_inode_log_format	*ilfp = item->ri_buf[0].i_addr;
> -
> -		xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
> -				   &xfs_inode_buf_ra_ops);
> -	} else {
> -		struct xfs_inode_log_format_32	*ilfp = item->ri_buf[0].i_addr;
> -
> -		xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
> -				   &xfs_inode_buf_ra_ops);
> -	}
> -}
> -
> -STATIC void
> -xlog_recover_dquot_ra_pass2(
> -	struct xlog			*log,
> -	struct xlog_recover_item	*item)
> -{
> -	struct xfs_mount	*mp = log->l_mp;
> -	struct xfs_disk_dquot	*recddq;
> -	struct xfs_dq_logformat	*dq_f;
> -	uint			type;
> -
> -	if (mp->m_qflags == 0)
> -		return;
> -
> -	recddq = item->ri_buf[1].i_addr;
> -	if (recddq == NULL)
> -		return;
> -	if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
> -		return;
> -
> -	type = recddq->d_flags & (XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
> -	ASSERT(type);
> -	if (log->l_quotaoffs_flag & type)
> -		return;
> -
> -	dq_f = item->ri_buf[0].i_addr;
> -	ASSERT(dq_f);
> -	ASSERT(dq_f->qlf_len == 1);
> -
> -	xlog_buf_readahead(log, dq_f->qlf_blkno,
> -			XFS_FSB_TO_BB(mp, dq_f->qlf_len),
> -			&xfs_dquot_buf_ra_ops);
> -}
> -
> -STATIC void
> -xlog_recover_ra_pass2(
> -	struct xlog			*log,
> -	struct xlog_recover_item	*item)
> -{
> -	switch (ITEM_TYPE(item)) {
> -	case XFS_LI_BUF:
> -		xlog_recover_buffer_ra_pass2(log, item);
> -		break;
> -	case XFS_LI_INODE:
> -		xlog_recover_inode_ra_pass2(log, item);
> -		break;
> -	case XFS_LI_DQUOT:
> -		xlog_recover_dquot_ra_pass2(log, item);
> -		break;
> -	case XFS_LI_EFI:
> -	case XFS_LI_EFD:
> -	case XFS_LI_QUOTAOFF:
> -	case XFS_LI_RUI:
> -	case XFS_LI_RUD:
> -	case XFS_LI_CUI:
> -	case XFS_LI_CUD:
> -	case XFS_LI_BUI:
> -	case XFS_LI_BUD:
> -	default:
> -		break;
> -	}
> -}
> -
>  STATIC int
>  xlog_recover_commit_pass1(
>  	struct xlog			*log,
> @@ -4138,7 +4048,8 @@ xlog_recover_commit_trans(
>  			error = xlog_recover_commit_pass1(log, trans, item);
>  			break;
>  		case XLOG_RECOVER_PASS2:
> -			xlog_recover_ra_pass2(log, item);
> +			if (item->ri_type && item->ri_type->ra_pass2_fn)
> +				item->ri_type->ra_pass2_fn(log, item);
>  			list_move_tail(&item->ri_list, &ra_list);
>  			items_queued++;
>  			if (items_queued >= XLOG_RECOVER_COMMIT_QUEUE_MAX) {
> 
> 


-- 
chandan




  reply	other threads:[~2020-05-01 12:07 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-30  0:47 [PATCH v2 00/21] xfs: refactor log recovery Darrick J. Wong
2020-04-30  0:47 ` [PATCH 01/21] xfs: refactor log recovery item sorting into a generic dispatch structure Darrick J. Wong
2020-04-30  5:53   ` Christoph Hellwig
2020-04-30 15:08     ` Darrick J. Wong
2020-04-30 18:16       ` Darrick J. Wong
2020-05-01  8:08         ` Christoph Hellwig
2020-05-01 10:40   ` Chandan Rajendra
2020-04-30  0:47 ` [PATCH 02/21] xfs: refactor log recovery item dispatch for pass2 readhead functions Darrick J. Wong
2020-05-01 12:10   ` Chandan Rajendra [this message]
2020-04-30  0:47 ` [PATCH 03/21] xfs: refactor log recovery item dispatch for pass1 commit functions Darrick J. Wong
2020-04-30  0:48 ` [PATCH 04/21] xfs: refactor log recovery buffer item dispatch for pass2 " Darrick J. Wong
2020-05-01 13:43   ` Chandan Rajendra
2020-04-30  0:48 ` [PATCH 05/21] xfs: refactor log recovery inode " Darrick J. Wong
2020-05-01 14:03   ` Chandan Rajendra
2020-04-30  0:48 ` [PATCH 06/21] xfs: refactor log recovery dquot " Darrick J. Wong
2020-05-01 14:14   ` Chandan Rajendra
2020-04-30  0:48 ` [PATCH 07/21] xfs: refactor log recovery icreate " Darrick J. Wong
2020-05-01 14:18   ` Chandan Rajendra
2020-04-30  0:48 ` [PATCH 08/21] xfs: remove log recovery quotaoff " Darrick J. Wong
2020-05-01 15:09   ` Chandan Rajendra
2020-05-01 17:41     ` Darrick J. Wong
2020-04-30  0:48 ` [PATCH 09/21] xfs: refactor log recovery EFI " Darrick J. Wong
2020-05-01 10:28   ` Christoph Hellwig
2020-05-01 17:56     ` Darrick J. Wong
2020-04-30  0:48 ` [PATCH 10/21] xfs: refactor log recovery RUI " Darrick J. Wong
2020-04-30  0:48 ` [PATCH 11/21] xfs: refactor log recovery CUI " Darrick J. Wong
2020-04-30  0:48 ` [PATCH 12/21] xfs: refactor log recovery BUI " Darrick J. Wong
2020-04-30  0:48 ` [PATCH 13/21] xfs: refactor recovered EFI log item playback Darrick J. Wong
2020-05-01 10:19   ` Christoph Hellwig
2020-05-01 17:58     ` Darrick J. Wong
2020-04-30  0:49 ` [PATCH 14/21] xfs: refactor recovered RUI " Darrick J. Wong
2020-04-30  0:49 ` [PATCH 15/21] xfs: refactor recovered CUI " Darrick J. Wong
2020-04-30  0:49 ` [PATCH 16/21] xfs: refactor recovered BUI " Darrick J. Wong
2020-04-30  0:49 ` [PATCH 17/21] xfs: refactor releasing finished intents during log recovery Darrick J. Wong
2020-04-30  0:49 ` [PATCH 18/21] xfs: refactor adding recovered intent items to the log Darrick J. Wong
2020-04-30  0:49 ` [PATCH 19/21] xfs: refactor intent item RECOVERED flag into the log item Darrick J. Wong
2020-04-30  0:49 ` [PATCH 20/21] xfs: refactor intent item iop_recover calls Darrick J. Wong
2020-04-30  0:49 ` [PATCH 21/21] xfs: remove unnecessary includes from xfs_log_recover.c Darrick J. Wong
2020-05-01 10:15 ` [PATCH v2 00/21] xfs: refactor log recovery Christoph Hellwig
2020-05-01 16:53   ` Darrick J. Wong
2020-05-01 17:03     ` Christoph Hellwig

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