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NFSD: Add nfsd4_encode_fattr4__false()

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Add an encoding helper that encodes a single boolean "false" value.
Attributes that always return "false" can use this helper.

In a subsequent patch, this helper will be called from a bitmask
loop, so it is given a standardized synopsis.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2023-09-18 09:57:26 -04:00
parent c88cb4727a
commit 8c4422881f
1 changed files with 15 additions and 12 deletions
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27
fs/nfsd/nfs4xdr.c
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@ -2954,6 +2954,12 @@ static __be32 nfsd4_encode_fattr4__true(struct xdr_stream *xdr,
return nfsd4_encode_bool(xdr, true);
}
static __be32 nfsd4_encode_fattr4__false(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
return nfsd4_encode_bool(xdr, false);
}
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
@ -3150,10 +3156,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out;
}
if (bmval0 & FATTR4_WORD0_NAMED_ATTR) {
p = xdr_reserve_space(xdr, 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(0);
status = nfsd4_encode_fattr4__false(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_FSID) {
p = xdr_reserve_space(xdr, 16);
@ -3180,10 +3185,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
}
}
if (bmval0 & FATTR4_WORD0_UNIQUE_HANDLES) {
p = xdr_reserve_space(xdr, 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(0);
status = nfsd4_encode_fattr4__false(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_LEASE_TIME) {
p = xdr_reserve_space(xdr, 4);
@ -3240,10 +3244,9 @@ out_acl:
goto out;
}
if (bmval0 & FATTR4_WORD0_CASE_INSENSITIVE) {
p = xdr_reserve_space(xdr, 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(0);
status = nfsd4_encode_fattr4__false(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_CASE_PRESERVING) {
status = nfsd4_encode_fattr4__true(xdr, &args);