xfs: fix integer overflow in deferred intent sort comparators

xfs: fix integer overflow in deferred intent sort comparators

xfs_extent_free_diff_items(), xfs_refcount_update_diff_items(), and
xfs_rmap_update_diff_items() subtract two uint32_t group numbers
and return the result as int, which can overflow when the difference
exceeds INT_MAX.

Use cmp_int() instead, as was done in commit 362c49098086 ("xfs:
fix integer overflow in bmap intent sort comparator").

Fixes: c13418e8eb37 ("xfs: give xfs_rmap_intent its own perag reference")
Fixes: f6b384631e1e ("xfs: give xfs_extfree_intent its own perag reference")
Fixes: 00e7b3bac1dc ("xfs: give xfs_refcount_intent its own perag reference")
Signed-off-by: Yuto Ohnuki <ytohnuki@amazon.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>