xfs: use a union for i_cowextsize and i_flushiter
The i_cowextsize field is only used for v3 inodes, and the i_flushiter
field is only used for v1/v2 inodes. Use a union to pack the inode a
littler better after adding a few missing guards around their usage.
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>
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 06d779c..e483c38 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3483,8 +3483,10 @@ xfs_iflush(
xfs_inode_to_disk(ip, dip, iip->ili_item.li_lsn);
/* Wrap, we never let the log put out DI_MAX_FLUSH */
- if (ip->i_flushiter == DI_MAX_FLUSH)
- ip->i_flushiter = 0;
+ if (!xfs_sb_version_has_v3inode(&mp->m_sb)) {
+ if (ip->i_flushiter == DI_MAX_FLUSH)
+ ip->i_flushiter = 0;
+ }
xfs_iflush_fork(ip, dip, iip, XFS_DATA_FORK);
if (XFS_IFORK_Q(ip))
