Commit 4ac5e7a6 authored by Chuck Lever's avatar Chuck Lever
Browse files

SUNRPC: Move the server-side GSS upcall to a noinline function 



Since upcalls are infrequent, ensure the compiler places the upcall
mechanism out-of-line from the I/O path.

Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent e8e38e14

net/sunrpc/auth_gss/svcauth_gss.c

+9 −4
Original line number Diff line number Diff line
@@ -1444,6 +1444,14 @@ static bool use_gss_proxy(struct net *net) 
	return sn->use_gss_proxy;

}



static noinline_for_stack int

svcauth_gss_proc_init(struct svc_rqst *rqstp, struct rpc_gss_wire_cred *gc)

{

	if (!use_gss_proxy(SVC_NET(rqstp)))

		return svcauth_gss_legacy_init(rqstp, gc);

	return svcauth_gss_proxy_init(rqstp, gc);

}



#ifdef CONFIG_PROC_FS



static ssize_t write_gssp(struct file *file, const char __user *buf,
@@ -1600,10 +1608,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp) 
	switch (gc->gc_proc) {

	case RPC_GSS_PROC_INIT:

	case RPC_GSS_PROC_CONTINUE_INIT:

		if (use_gss_proxy(SVC_NET(rqstp)))

			return svcauth_gss_proxy_init(rqstp, gc);

		else

			return svcauth_gss_legacy_init(rqstp, gc);

		return svcauth_gss_proc_init(rqstp, gc);

	case RPC_GSS_PROC_DATA:

	case RPC_GSS_PROC_DESTROY:

		/* Look up the context, and check the verifier: */