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NFSD: Add nfsd4_encode_fattr4_maxread()

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Refactor the encoder for FATTR4_MAXREAD into a helper. In a
subsequent patch, this helper will be called from a bitmask loop.

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 09:59:39 -04:00
parent 9c1adaccd1
commit c17195c397
1 changed files with 9 additions and 4 deletions
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13
fs/nfsd/nfs4xdr.c
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@ -3171,6 +3171,12 @@ static __be32 nfsd4_encode_fattr4_maxname(struct xdr_stream *xdr,
return nfsd4_encode_uint32_t(xdr, args->statfs.f_namelen);
}
static __be32 nfsd4_encode_fattr4_maxread(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
return nfsd4_encode_uint64_t(xdr, svc_max_payload(args->rqstp));
}
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
@ -3440,10 +3446,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXREAD) {
p = xdr_reserve_space(xdr, 8);
if (!p)
goto out_resource;
p = xdr_encode_hyper(p, (u64) svc_max_payload(rqstp));
status = nfsd4_encode_fattr4_maxread(xdr, &args);
if (status != nfs_ok)
goto out;
}
if (bmval0 & FATTR4_WORD0_MAXWRITE) {
p = xdr_reserve_space(xdr, 8);