Re: [PATCH 11/18] xfs: move the di_cowextsize field to struct xfs_inode

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On Wed, Mar 24, 2021 at 11:33:49AM -0700, Darrick J. Wong wrote:
> On Wed, Mar 24, 2021 at 11:31:30AM -0700, Darrick J. Wong wrote:
> > On Wed, Mar 24, 2021 at 03:21:22PM +0100, Christoph Hellwig wrote:
> > > In preparation of removing the historic icinode struct, move the
> > > cowextsize field into the containing xfs_inode structure.  Also
> > > switch to use the xfs_extlen_t instead of a uint32_t.
> > > 
> > > 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 fa21fb84c2d232..9f208d2c8ddb4d 100644
> > > --- a/fs/xfs/libxfs/xfs_inode_buf.c
> > > +++ b/fs/xfs/libxfs/xfs_inode_buf.c
> > > @@ -240,7 +240,7 @@ xfs_inode_from_disk(
> > >  					   be64_to_cpu(from->di_changecount));
> > >  		to->di_crtime = xfs_inode_from_disk_ts(from, from->di_crtime);
> > >  		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);
> > > @@ -319,7 +319,7 @@ xfs_inode_to_disk(
> > >  		to->di_changecount = cpu_to_be64(inode_peek_iversion(inode));
> > >  		to->di_crtime = xfs_inode_to_disk_ts(ip, from->di_crtime);
> > >  		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 6bc78856373e31..77d250dbe96848 100644
> > > --- a/fs/xfs/libxfs/xfs_inode_buf.h
> > > +++ b/fs/xfs/libxfs/xfs_inode_buf.h
> > > @@ -21,7 +21,6 @@ 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 4c930078f45d82..d755fbf3640bee 100644
> > > --- a/fs/xfs/xfs_file.c
> > > +++ b/fs/xfs/xfs_file.c
> > > @@ -1162,7 +1162,7 @@ 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 ccd179900f21cf..b8f38423f8c451 100644
> > > --- a/fs/xfs/xfs_inode.c
> > > +++ b/fs/xfs/xfs_inode.c
> > > @@ -81,7 +81,7 @@ 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);
> > > @@ -754,7 +754,7 @@ xfs_inode_inherit_flags2(
> > >  {
> > >  	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;
> > > @@ -843,7 +843,7 @@ xfs_init_new_inode(
> > >  
> > >  	if (xfs_sb_version_has_v3inode(&mp->m_sb)) {
> > >  		inode_set_iversion(inode, 1);
> > > -		ip->i_d.di_cowextsize = 0;
> > > +		ip->i_cowextsize = 0;
> > >  		ip->i_d.di_crtime = tv;
> > >  	}
> > >  
> > > diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
> > > index 84cc2e74ba1961..36eb33d9bcbdcc 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 */
> > > +	xfs_extlen_t		i_cowextsize;	/* basic cow extent size */
> > >  
> > >  	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 8a1411effd327d..44902fd513eb0b 100644
> > > --- a/fs/xfs/xfs_inode_item.c
> > > +++ b/fs/xfs/xfs_inode_item.c
> > > @@ -388,7 +388,7 @@ xfs_inode_to_log_dinode(
> > >  		to->di_changecount = inode_peek_iversion(inode);
> > >  		to->di_crtime = xfs_inode_to_log_dinode_ts(ip, from->di_crtime);
> > >  		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 ec769219e435e9..e45bce9b11082c 100644
> > > --- a/fs/xfs/xfs_ioctl.c
> > > +++ b/fs/xfs/xfs_ioctl.c
> > > @@ -1121,8 +1121,7 @@ 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;
> > 
> > /me wonders if you wouldn't mind converting these open coded shifts to
> > XFS_FSB_TO_B and XFS_B_TO_FSBT as a new patch at the end of this series?
> 
> Heh, you did already, ignore this question. :)

...and now I go for a record /third/ reply to ask if you wouldn't mind
adding a patch to do the XFS_B_TO_FSBT conversion on xfs_ioctl_setattr?

> --D
> 
> > This patch looks good to me, so
> > Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> > 
> > --D
> > 
> > 
> > >  	fa->fsx_projid = ip->i_projid;
> > >  	if (ifp && (ifp->if_flags & XFS_IFEXTENTS))
> > >  		fa->fsx_nextents = xfs_iext_count(ifp);
> > > @@ -1524,10 +1523,9 @@ 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;
> > >  
> > >  	error = xfs_trans_commit(tp);
> > >  
> > > diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
> > > index ce95cb1a9bc9f5..43f8a89c9786c7 100644
> > > --- a/fs/xfs/xfs_itable.c
> > > +++ b/fs/xfs/xfs_itable.c
> > > @@ -114,7 +114,7 @@ xfs_bulkstat_one_int(
> > >  		buf->bs_btime = dic->di_crtime.tv_sec;
> > >  		buf->bs_btime_nsec = dic->di_crtime.tv_nsec;
> > >  		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 306f13dfbfd856..d8735b3ee0f807 100644
> > > --- a/fs/xfs/xfs_reflink.c
> > > +++ b/fs/xfs/xfs_reflink.c
> > > @@ -934,7 +934,7 @@ xfs_reflink_update_dest(
> > >  	}
> > >  
> > >  	if (cowextsize) {
> > > -		dest->i_d.di_cowextsize = cowextsize;
> > > +		dest->i_cowextsize = cowextsize;
> > >  		dest->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
> > >  	}
> > >  
> > > -- 
> > > 2.30.1
> > > 



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