修改两个锁

Author: GnoCiYeH

kernel/Cargo.toml

@@ -82,4 +82,4 @@ debug = true   # Controls whether the compiler passes `-g`
 
 # The release profile, used for `cargo build --release`
 [profile.release]
-debug = true
+debug = false

kernel/src/driver/tty/tty_core.rs

@@ -343,17 +343,17 @@ impl TtyCoreData {
 
     #[inline]
     pub fn termios(&self) -> RwLockReadGuard<'_, Termios> {
-        self.termios.read()
+        self.termios.read_irqsave()
     }
 
     #[inline]
     pub fn termios_write(&self) -> RwLockWriteGuard<Termios> {
-        self.termios.write()
+        self.termios.write_irqsave()
     }
 
     #[inline]
     pub fn set_termios(&self, termios: Termios) {
-        let mut termios_guard = self.termios.write();
+        let mut termios_guard = self.termios.write_irqsave();
         *termios_guard = termios;
     }
 

kernel/src/driver/tty/tty_device.rs

@@ -211,7 +211,7 @@ impl IndexNode for TtyDevice {
 
             // 将数据从buf拷贝到writebuf
 
-            let ret = ld.write(tty.clone(), buf, size, mode)?;
+            let ret = ld.write(tty.clone(), &buf[written..], size, mode)?;
 
             written += ret;
             count -= ret;