5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit 1beef1473ccaa70a2d54f9e76fba5f534931ea23 ]
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/xdr4.c | 74 ++++++++++++++++++++++++------------------------- 1 file changed, 36 insertions(+), 38 deletions(-)
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c index 0db142e203d2b..9b8a7afb935ca 100644 --- a/fs/lockd/xdr4.c +++ b/fs/lockd/xdr4.c @@ -20,8 +20,6 @@
#include "svcxdr.h"
-#define NLMDBG_FACILITY NLMDBG_XDR - static inline loff_t s64_to_loff_t(__s64 offset) { @@ -110,44 +108,44 @@ svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock) return true; }
-/* - * Encode result of a TEST/TEST_MSG call - */ -static __be32 * -nlm4_encode_testres(__be32 *p, struct nlm_res *resp) +static bool +svcxdr_encode_holder(struct xdr_stream *xdr, const struct nlm_lock *lock) { - s64 start, len; + const struct file_lock *fl = &lock->fl; + s64 start, len;
- dprintk("xdr: before encode_testres (p %p resp %p)\n", p, resp); - if (!(p = nlm4_encode_cookie(p, &resp->cookie))) - return NULL; - *p++ = resp->status; + /* 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_s64(fl->fl_start); + if (fl->fl_end == OFFSET_MAX) + len = 0; + else + len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1); + if (xdr_stream_encode_u64(xdr, start) < 0) + return false; + if (xdr_stream_encode_u64(xdr, len) < 0) + return false; + + return true; +}
- 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; - - start = loff_t_to_s64(fl->fl_start); - if (fl->fl_end == OFFSET_MAX) - len = 0; - else - len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1); - - p = xdr_encode_hyper(p, start); - p = xdr_encode_hyper(p, len); - dprintk("xdr: encode_testres (status %u pid %d type %d start %Ld end %Ld)\n", - resp->status, (int)resp->lock.svid, fl->fl_type, - (long long)fl->fl_start, (long long)fl->fl_end); +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; }
- dprintk("xdr: after encode_testres (p %p resp %p)\n", p, resp); - return p; + return true; }
@@ -338,11 +336,11 @@ nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p) int nlm4svc_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 = nlm4_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