[PATCH v2 6/7] nfsd: drop the ncf_cb_bmap field

Jeff Layton
2024-08-26T12:46:47Z

This is always the same value, and in a later patch we're going to need
to set bits in WORD2. We can simplify this code and save a little space
in the delegation too. Just hardcode the bitmap in the callback encode
function.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/nfsd/nfs4callback.c | 5 ++++-
fs/nfsd/nfs4state.c | 1 -
fs/nfsd/state.h | 1 -
3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index d756f443fc44..988232086589 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -364,10 +364,13 @@ encode_cb_getattr4args(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr,
struct nfs4_delegation *dp =
container_of(fattr, struct nfs4_delegation, dl_cb_fattr);
struct knfsd_fh *fh = &dp->dl_stid.sc_file->fi_fhandle;
+ u32 bmap[1];
+
+ bmap[0] = FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE;

encode_nfs_cb_opnum4(xdr, OP_CB_GETATTR);
encode_nfs_fh4(xdr, fh);
- encode_bitmap4(xdr, fattr->ncf_cb_bmap, ARRAY_SIZE(fattr->ncf_cb_bmap));
+ encode_bitmap4(xdr, bmap, ARRAY_SIZE(bmap));
hdr->nops++;
}

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index b544320246bf..f353aeb4cc0a 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1182,7 +1182,6 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp,
nfsd4_init_cb(&dp->dl_cb_fattr.ncf_getattr, dp->dl_stid.sc_client,
&nfsd4_cb_getattr_ops, NFSPROC4_CLNT_CB_GETATTR);
dp->dl_cb_fattr.ncf_file_modified = false;
- dp->dl_cb_fattr.ncf_cb_bmap[0] = FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE;
get_nfs4_file(fp);
dp->dl_stid.sc_file = fp;
return dp;
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index ec4559ecd193..65691457d9ba 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -137,7 +137,6 @@ struct nfs4_cpntf_state {
struct nfs4_cb_fattr {
struct nfsd4_callback ncf_getattr;
u32 ncf_cb_status;
- u32 ncf_cb_bmap[1];

/* from CB_GETATTR reply */
u64 ncf_cb_change;

--
2.46.0