From 712a15ce6c5fdf9c5156a5954cd6c3551547037c Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Fri, 30 Aug 2024 18:50:51 +0300
Subject: speed up ipc_resp a bit

+ Skip unwinding stack and just jump directly to userspace
---
 src/uapi/ipc.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'src/uapi')

diff --git a/src/uapi/ipc.c b/src/uapi/ipc.c
index 0fba899..5f2aad1 100644
--- a/src/uapi/ipc.c
+++ b/src/uapi/ipc.c
@@ -283,13 +283,15 @@ static void leave_rpc(struct tcb *t, struct sys_ret a)
 	if (t->notify_flags)
 		notify(t, 0);
 
-	if (is_rpc(t)) {
+	if (is_rpc(t))
 		use_vmem(t->rpc.vmem);
-		return;
-	}
+	else
+		use_vmem(t->proc.vmem);
 
-	/* notification didn't take, return back to process normally */
-	use_vmem(t->proc.vmem);
+	if (!ctx->notify) {
+		bkl_unlock();
+		ret_userspace_partial();
+	}
 }
 
 /**
-- 
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