Re: [PATCH 06/14] xfs: move the di_cowextsize field to struct xfs_inode

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On Sun, May 24, 2020 at 11:17:49AM +0200, Christoph Hellwig wrote:
> In preparation of removing the historic icinode struct, move the
> cowextsize field into the containing xfs_inode structure.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  fs/xfs/libxfs/xfs_inode_buf.c | 4 ++--
>  fs/xfs/libxfs/xfs_inode_buf.h | 1 -
>  fs/xfs/xfs_file.c             | 2 +-
>  fs/xfs/xfs_inode.c            | 6 +++---
>  fs/xfs/xfs_inode.h            | 1 +
>  fs/xfs/xfs_inode_item.c       | 2 +-
>  fs/xfs/xfs_ioctl.c            | 8 +++-----
>  fs/xfs/xfs_itable.c           | 2 +-
>  fs/xfs/xfs_reflink.c          | 2 +-
>  9 files changed, 13 insertions(+), 15 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
> index e51b15c44bb3e..860e35611e001 100644
> --- a/fs/xfs/libxfs/xfs_inode_buf.c
> +++ b/fs/xfs/libxfs/xfs_inode_buf.c
> @@ -255,7 +255,7 @@ xfs_inode_from_disk(
>  		to->di_crtime.tv_sec = be32_to_cpu(from->di_crtime.t_sec);
>  		to->di_crtime.tv_nsec = be32_to_cpu(from->di_crtime.t_nsec);
>  		to->di_flags2 = be64_to_cpu(from->di_flags2);
> -		to->di_cowextsize = be32_to_cpu(from->di_cowextsize);
> +		ip->i_cowextsize = be32_to_cpu(from->di_cowextsize);
>  	}
>  
>  	error = xfs_iformat_data_fork(ip, from);
> @@ -321,7 +321,7 @@ xfs_inode_to_disk(
>  		to->di_crtime.t_sec = cpu_to_be32(from->di_crtime.tv_sec);
>  		to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.tv_nsec);
>  		to->di_flags2 = cpu_to_be64(from->di_flags2);
> -		to->di_cowextsize = cpu_to_be32(from->di_cowextsize);
> +		to->di_cowextsize = cpu_to_be32(ip->i_cowextsize);
>  		to->di_ino = cpu_to_be64(ip->i_ino);
>  		to->di_lsn = cpu_to_be64(lsn);
>  		memset(to->di_pad2, 0, sizeof(to->di_pad2));
> diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h
> index d420ea835c839..663a97fa78f05 100644
> --- a/fs/xfs/libxfs/xfs_inode_buf.h
> +++ b/fs/xfs/libxfs/xfs_inode_buf.h
> @@ -23,7 +23,6 @@ struct xfs_icdinode {
>  	uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */
>  
>  	uint64_t	di_flags2;	/* more random flags */
> -	uint32_t	di_cowextsize;	/* basic cow extent size for file */
>  
>  	struct timespec64 di_crtime;	/* time created */
>  };
> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
> index 14b533a8ce8e6..b0384306d6622 100644
> --- a/fs/xfs/xfs_file.c
> +++ b/fs/xfs/xfs_file.c
> @@ -1055,7 +1055,7 @@ xfs_file_remap_range(
>  	    (src->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) &&
>  	    pos_out == 0 && len >= i_size_read(inode_out) &&
>  	    !(dest->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE))
> -		cowextsize = src->i_d.di_cowextsize;
> +		cowextsize = src->i_cowextsize;
>  
>  	ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize,
>  			remap_flags);
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index 777dadc3fd531..ef6a4c313ebbd 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -82,7 +82,7 @@ xfs_get_cowextsz_hint(
>  
>  	a = 0;
>  	if (ip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE)
> -		a = ip->i_d.di_cowextsize;
> +		a = ip->i_cowextsize;
>  	b = xfs_get_extsz_hint(ip);
>  
>  	a = max(a, b);
> @@ -842,7 +842,7 @@ xfs_ialloc(
>  	if (xfs_sb_version_has_v3inode(&mp->m_sb)) {
>  		inode_set_iversion(inode, 1);
>  		ip->i_d.di_flags2 = 0;
> -		ip->i_d.di_cowextsize = 0;
> +		ip->i_cowextsize = 0;
>  		ip->i_d.di_crtime = tv;
>  	}
>  
> @@ -901,7 +901,7 @@ xfs_ialloc(
>  		if (pip && (pip->i_d.di_flags2 & XFS_DIFLAG2_ANY)) {
>  			if (pip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) {
>  				ip->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
> -				ip->i_d.di_cowextsize = pip->i_d.di_cowextsize;
> +				ip->i_cowextsize = pip->i_cowextsize;
>  			}
>  			if (pip->i_d.di_flags2 & XFS_DIFLAG2_DAX)
>  				ip->i_d.di_flags2 |= XFS_DIFLAG2_DAX;
> diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
> index af90c6f745549..f6aa97fde63cb 100644
> --- a/fs/xfs/xfs_inode.h
> +++ b/fs/xfs/xfs_inode.h
> @@ -58,6 +58,7 @@ typedef struct xfs_inode {
>  	xfs_rfsblock_t		i_nblocks;	/* # of direct & btree blocks */
>  	uint32_t		i_projid;	/* owner's project id */
>  	xfs_extlen_t		i_extsize;	/* basic/minimum extent size */
> +	uint32_t		i_cowextsize;	/* basic cow extent size */

You might as well fix this to xfs_extlen_t while you're doing this.

--D

>  
>  	struct xfs_icdinode	i_d;		/* most of ondisk inode */
>  
> diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
> index 8b8c99809f273..ab0d8cf8ceb6a 100644
> --- a/fs/xfs/xfs_inode_item.c
> +++ b/fs/xfs/xfs_inode_item.c
> @@ -343,7 +343,7 @@ xfs_inode_to_log_dinode(
>  		to->di_crtime.t_sec = from->di_crtime.tv_sec;
>  		to->di_crtime.t_nsec = from->di_crtime.tv_nsec;
>  		to->di_flags2 = from->di_flags2;
> -		to->di_cowextsize = from->di_cowextsize;
> +		to->di_cowextsize = ip->i_cowextsize;
>  		to->di_ino = ip->i_ino;
>  		to->di_lsn = lsn;
>  		memset(to->di_pad2, 0, sizeof(to->di_pad2));
> diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
> index aeb1de3aec60f..a9b31ae3c28c0 100644
> --- a/fs/xfs/xfs_ioctl.c
> +++ b/fs/xfs/xfs_ioctl.c
> @@ -1108,8 +1108,7 @@ xfs_fill_fsxattr(
>  
>  	simple_fill_fsxattr(fa, xfs_ip2xflags(ip));
>  	fa->fsx_extsize = ip->i_extsize << ip->i_mount->m_sb.sb_blocklog;
> -	fa->fsx_cowextsize = ip->i_d.di_cowextsize <<
> -			ip->i_mount->m_sb.sb_blocklog;
> +	fa->fsx_cowextsize = ip->i_cowextsize << ip->i_mount->m_sb.sb_blocklog;
>  	fa->fsx_projid = ip->i_projid;
>  	if (ifp && (ifp->if_flags & XFS_IFEXTENTS))
>  		fa->fsx_nextents = xfs_iext_count(ifp);
> @@ -1574,10 +1573,9 @@ xfs_ioctl_setattr(
>  		ip->i_extsize = 0;
>  	if (xfs_sb_version_has_v3inode(&mp->m_sb) &&
>  	    (ip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE))
> -		ip->i_d.di_cowextsize = fa->fsx_cowextsize >>
> -				mp->m_sb.sb_blocklog;
> +		ip->i_cowextsize = fa->fsx_cowextsize >> mp->m_sb.sb_blocklog;
>  	else
> -		ip->i_d.di_cowextsize = 0;
> +		ip->i_cowextsize = 0;
>  
>  	code = xfs_trans_commit(tp);
>  
> diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
> index b0f0c19fd7822..7937af9f2ea77 100644
> --- a/fs/xfs/xfs_itable.c
> +++ b/fs/xfs/xfs_itable.c
> @@ -112,7 +112,7 @@ xfs_bulkstat_one_int(
>  
>  	if (xfs_sb_version_has_v3inode(&mp->m_sb)) {
>  		if (dic->di_flags2 & XFS_DIFLAG2_COWEXTSIZE)
> -			buf->bs_cowextsize_blks = dic->di_cowextsize;
> +			buf->bs_cowextsize_blks = ip->i_cowextsize;
>  	}
>  
>  	switch (ip->i_df.if_format) {
> diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
> index 8598896156e29..0e07fa7e43117 100644
> --- a/fs/xfs/xfs_reflink.c
> +++ b/fs/xfs/xfs_reflink.c
> @@ -942,7 +942,7 @@ xfs_reflink_update_dest(
>  	}
>  
>  	if (cowextsize) {
> -		dest->i_d.di_cowextsize = cowextsize;
> +		dest->i_cowextsize = cowextsize;
>  		dest->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
>  	}
>  
> -- 
> 2.26.2
> 



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