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NFSD: Add nfsd4_encode_fattr4_xattr_support()

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Refactor the encoder for FATTR4_XATTR_SUPPORT 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 10:01:59 -04:00
parent f59388a579
commit b3dbf4e4a2
1 changed files with 12 additions and 7 deletions
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19
fs/nfsd/nfs4xdr.c
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@ -3347,6 +3347,14 @@ static __be32 nfsd4_encode_fattr4_sec_label(struct xdr_stream *xdr,
}
#endif
static __be32 nfsd4_encode_fattr4_xattr_support(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
int err = xattr_supports_user_prefix(d_inode(args->dentry));
return nfsd4_encode_bool(xdr, err == 0);
}
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
@ -3362,10 +3370,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
u32 bmval1 = bmval[1];
u32 bmval2 = bmval[2];
struct svc_fh *tempfh = NULL;
__be32 *p, *attrlen_p;
int starting_len = xdr->buf->len;
__be32 *attrlen_p, status;
int attrlen_offset;
__be32 status;
int err;
struct nfsd4_compoundres *resp = rqstp->rq_resp;
u32 minorversion = resp->cstate.minorversion;
@ -3736,11 +3743,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
#endif
if (bmval2 & FATTR4_WORD2_XATTR_SUPPORT) {
p = xdr_reserve_space(xdr, 4);
if (!p)
goto out_resource;
err = xattr_supports_user_prefix(d_inode(dentry));
*p++ = cpu_to_be32(err == 0);
status = nfsd4_encode_fattr4_xattr_support(xdr, &args);
if (status != nfs_ok)
goto out;
}
*attrlen_p = cpu_to_be32(xdr->buf->len - attrlen_offset - XDR_UNIT);