From 83a4366a725c116a00006a70947c39e1d6e3bd96 Mon Sep 17 00:00:00 2001
From: Yuke Peng <pykfirst@gmail.com>
Date: Sun, 25 Aug 2024 15:34:42 +0800
Subject: [PATCH] Remove check_sem in semop

---
 kernel/src/syscall/semop.rs | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/src/syscall/semop.rs b/kernel/src/syscall/semop.rs
index f8c97b083..2e71fc7bf 100644
--- a/kernel/src/syscall/semop.rs
+++ b/kernel/src/syscall/semop.rs
@@ -6,8 +6,7 @@ use super::SyscallReturn;
 use crate::{
     ipc::semaphore::system_v::{
         sem::{sem_op, SemBuf},
-        sem_set::{check_sem, SEMOPM},
-        PermissionMode,
+        sem_set::SEMOPM,
     },
     prelude::*,
     time::timespec_t,
@@ -61,9 +60,6 @@ fn do_sys_semtimedop(
     for i in 0..nsops {
         let sem_buf =
             CurrentUserSpace::get().read_val::<SemBuf>(tsops + size_of::<SemBuf>() * i)?;
-        if sem_buf.sem_op() != 0 {
-            check_sem(sem_id, None, PermissionMode::ALTER)?;
-        }
 
         sem_op(sem_id, sem_buf, timeout, ctx)?;
     }