nfsd: properly track requested child attributes

Track the union of requested and supported child attributes in the
delegation, and only encode the attributes in that union when sending
add/remove/rename updates.

Since the requested child attributes can now include word1 attributes,
gddr_child_attributes[1] may be non-zero and nfsd4_encode_bitmap4() can
emit a two-word bitmap. Bump the child-attribute bitmap budget in
nfsd4_get_dir_delegation_rsize() from one word to two accordingly, so the
reply-size check before this non-idempotent op accounts for the larger
encoding.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260616-dir-deleg-v7-18-6cbc7eac0ade@kernel.org
Signed-off-by: Chuck Lever <cel@kernel.org>

0 files changed, 0 insertions, 0 deletions