5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit adf98a4850b9ede9fc174c78a885845fb08499a5 ]
Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: J. Bruce Fields bfields@redhat.com Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/lockd/xdr.c | 74 ++++++++++++++++++++++++-------------------------- 1 file changed, 35 insertions(+), 39 deletions(-)
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c index 840fa8ff84269..daf3524040d66 100644 --- a/fs/lockd/xdr.c +++ b/fs/lockd/xdr.c @@ -80,15 +80,6 @@ svcxdr_decode_fhandle(struct xdr_stream *xdr, struct nfs_fh *fh) return true; }
-/* - * Encode and decode owner handle - */ -static inline __be32 * -nlm_encode_oh(__be32 *p, struct xdr_netobj *oh) -{ - return xdr_encode_netobj(p, oh); -} - static bool svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock) { @@ -121,39 +112,44 @@ svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock) return true; }
-/* - * Encode result of a TEST/TEST_MSG call - */ -static __be32 * -nlm_encode_testres(__be32 *p, struct nlm_res *resp) +static bool +svcxdr_encode_holder(struct xdr_stream *xdr, const struct nlm_lock *lock) { - s32 start, len; - - if (!(p = nlm_encode_cookie(p, &resp->cookie))) - return NULL; - *p++ = resp->status; + const struct file_lock *fl = &lock->fl; + s32 start, len;
- if (resp->status == nlm_lck_denied) { - struct file_lock *fl = &resp->lock.fl; - - *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one; - *p++ = htonl(resp->lock.svid); - - /* Encode owner handle. */ - if (!(p = xdr_encode_netobj(p, &resp->lock.oh))) - return NULL; + /* exclusive */ + if (xdr_stream_encode_bool(xdr, fl->fl_type != F_RDLCK) < 0) + return false; + if (xdr_stream_encode_u32(xdr, lock->svid) < 0) + return false; + if (!svcxdr_encode_owner(xdr, &lock->oh)) + return false; + start = loff_t_to_s32(fl->fl_start); + if (fl->fl_end == OFFSET_MAX) + len = 0; + else + len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1); + if (xdr_stream_encode_u32(xdr, start) < 0) + return false; + if (xdr_stream_encode_u32(xdr, len) < 0) + return false;
- start = loff_t_to_s32(fl->fl_start); - if (fl->fl_end == OFFSET_MAX) - len = 0; - else - len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1); + return true; +}
- *p++ = htonl(start); - *p++ = htonl(len); +static bool +svcxdr_encode_testrply(struct xdr_stream *xdr, const struct nlm_res *resp) +{ + if (!svcxdr_encode_stats(xdr, resp->status)) + return false; + switch (resp->status) { + case nlm_lck_denied: + if (!svcxdr_encode_holder(xdr, &resp->lock)) + return false; }
- return p; + return true; }
@@ -345,11 +341,11 @@ nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p) int nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p) { + struct xdr_stream *xdr = &rqstp->rq_res_stream; struct nlm_res *resp = rqstp->rq_resp;
- if (!(p = nlm_encode_testres(p, resp))) - return 0; - return xdr_ressize_check(rqstp, p); + return svcxdr_encode_cookie(xdr, &resp->cookie) && + svcxdr_encode_testrply(xdr, resp); }
int