xfs: move the di_cowextsize field to struct xfs_inode

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@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

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));

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 */
 };

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);

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;
@@ -844,7 +844,7 @@ 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;
 	}
 

fs/xfs/xfs_inode.h

@@ -58,6 +58,7 @@ typedef struct xfs_inode {
 	xfs_rfsblock_t		i_nblocks;	/* # of direct & btree blocks */
 	prid_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 */
 

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));

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;
 	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);
 

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) {

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;
 	}