By preventing compiler inlining of the integrity and privacy
helpers, stack utilization for the common case (authentication only)
goes way down.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/auth_gss/auth_gss.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 98b2c8bc8f40..45707a306f20 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1724,8 +1724,9 @@ static int gss_cred_is_negative_entry(struct rpc_cred *cred)
goto out;
}
-static int gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
- struct rpc_task *task, struct xdr_stream *xdr)
+static noinline_for_stack int
+gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
+ struct rpc_task *task, struct xdr_stream *xdr)
{
struct rpc_rqst *rqstp = task->tk_rqstp;
struct xdr_buf integ_buf, *snd_buf = &rqstp->rq_snd_buf;
@@ -1816,8 +1817,9 @@ static int gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
return -EAGAIN;
}
-static int gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
- struct rpc_task *task, struct xdr_stream *xdr)
+static noinline_for_stack int
+gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
+ struct rpc_task *task, struct xdr_stream *xdr)
{
struct rpc_rqst *rqstp = task->tk_rqstp;
struct xdr_buf *snd_buf = &rqstp->rq_snd_buf;
@@ -1947,7 +1949,7 @@ static int gss_wrap_req(struct rpc_task *task, struct xdr_stream *xdr)
* proc_req_arg_t arg;
* };
*/
-static int
+static noinline_for_stack int
gss_unwrap_resp_integ(struct rpc_task *task, struct rpc_cred *cred,
struct gss_cl_ctx *ctx, struct rpc_rqst *rqstp,
struct xdr_stream *xdr)
@@ -2021,7 +2023,7 @@ static int gss_wrap_req(struct rpc_task *task, struct xdr_stream *xdr)
goto out;
}
-static int
+static noinline_for_stack int
gss_unwrap_resp_priv(struct rpc_task *task, struct rpc_cred *cred,
struct gss_cl_ctx *ctx, struct rpc_rqst *rqstp,
struct xdr_stream *xdr)
