From 90643abbadc7e8af8f1d141fcdb1e823d10cd905 Mon Sep 17 00:00:00 2001
From: Ibuki Omatsu <isan.ethen@gmail.com>
Date: Wed, 25 Jun 2025 14:44:51 +0000
Subject: [PATCH] feat: Store caller's PID in Sqe during SYS_CALL

---
 src/scheme/user.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/scheme/user.rs b/src/scheme/user.rs
index fd168bb3bb..e6198eb1df 100644
--- a/src/scheme/user.rs
+++ b/src/scheme/user.rs
@@ -1751,13 +1751,14 @@ impl KernelScheme for UserScheme {
         let inner = self.inner.upgrade().ok_or(Error::new(ENODEV))?;
 
         let mut address = inner.capture_user(payload)?;
+        let ctx = context::current().read().caller_ctx();
 
         let mut sqe = Sqe {
             opcode: Opcode::Call as u8,
             sqe_flags: SqeFlags::empty(),
             _rsvd: 0,
             tag: inner.next_id()?,
-            caller: 0, // TODO?
+            caller: ctx.pid as u64,
             args: [
                 id as u64,
                 address.base() as u64,