Re: [PATCH] xfs: refactor log recovery check

[Brian Foster <bfoster@redhat.com>]

On Tue, Jul 31, 2018 at 05:06:22PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> Add a predicate to decide if the log is actively in recovery and use
> that instead of open-coding a pagf_init check in the attr leaf verifier.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  fs/xfs/libxfs/xfs_attr_leaf.c |    3 +--
>  fs/xfs/xfs_log.c              |    9 +++++++++
>  fs/xfs/xfs_log.h              |    1 +
>  3 files changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
> index 4e7ef79a83c7..6fc5425b1474 100644
> --- a/fs/xfs/libxfs/xfs_attr_leaf.c
> +++ b/fs/xfs/libxfs/xfs_attr_leaf.c
> @@ -242,7 +242,6 @@ xfs_attr3_leaf_verify(
>  	struct xfs_attr3_icleaf_hdr	ichdr;
>  	struct xfs_mount		*mp = bp->b_target->bt_mount;
>  	struct xfs_attr_leafblock	*leaf = bp->b_addr;
> -	struct xfs_perag		*pag = bp->b_pag;
>  	struct xfs_attr_leaf_entry	*entries;
>  	uint16_t			end;
>  	int				i;
> @@ -270,7 +269,7 @@ xfs_attr3_leaf_verify(
>  	 * because we may have transitioned an empty shortform attr to a leaf
>  	 * if the attr didn't fit in shortform.
>  	 */
> -	if (pag && pag->pagf_init && ichdr.count == 0)
> +	if (!xfs_log_in_recovery(mp) && ichdr.count == 0)
>  		return __this_address;
>  
>  	/*
> diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
> index fd10b1426382..00df4f39093a 100644
> --- a/fs/xfs/xfs_log.c
> +++ b/fs/xfs/xfs_log.c
> @@ -4104,3 +4104,12 @@ xfs_log_check_lsn(
>  
>  	return valid;
>  }
> +
> +bool
> +xfs_log_in_recovery(
> +	struct xfs_mount	*mp)
> +{
> +	struct xlog		*log = mp->m_log;
> +
> +	return log->l_flags & XLOG_ACTIVE_RECOVERY;
> +}
> diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
> index 3c1f6a8b4b70..73a64bf32f6f 100644
> --- a/fs/xfs/xfs_log.h
> +++ b/fs/xfs/xfs_log.h
> @@ -153,5 +153,6 @@ bool	xfs_log_item_in_current_chkpt(struct xfs_log_item *lip);
>  void	xfs_log_work_queue(struct xfs_mount *mp);
>  void	xfs_log_quiesce(struct xfs_mount *mp);
>  bool	xfs_log_check_lsn(struct xfs_mount *, xfs_lsn_t);
> +bool	xfs_log_in_recovery(struct xfs_mount *);
>  
>  #endif	/* __XFS_LOG_H__ */
> --
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