xfs: set a default CoW extent size of 32 blocks

/*

 * Helper function to extract CoW extent size hint from inode.

 * Between the extent size hint and the CoW extent size hint, we

 * return the greater of the two.

 * return the greater of the two.  If the value is zero (automatic),

 * use the default size.

 */

xfs_extlen_t

xfs_get_cowextsz_hint(

		a = ip->i_d.di_cowextsize;

	b = xfs_get_extsz_hint(ip);

	if (a > b)

	a = max(a, b);

	if (a == 0)

		return XFS_DEFAULT_COWEXTSZ_HINT;

	return a;

	return b;

}

/*

extern struct kmem_zone	*xfs_inode_zone;

/* The default CoW extent size hint. */

#define XFS_DEFAULT_COWEXTSZ_HINT 32

#endif	/* __XFS_INODE_H__ */