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Optimize the latency of lmbench-signal-prot

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This commit is contained in:
Jianfeng Jiang
2024-08-27 06:37:02 +00:00
committed by Tate, Hongliang Tian
parent 7b58d97aa2
commit a72c7dadf3
11 changed files with 137 additions and 87 deletions
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6
kernel/src/syscall/kill.rs
View File

@ -36,9 +36,9 @@ pub fn do_sys_kill(filter: ProcessFilter, sig_num: Option<SigNum>, ctx: &Context
});
match filter {
ProcessFilter::Any => kill_all(signal)?,
ProcessFilter::WithPid(pid) => kill(pid, signal)?,
ProcessFilter::WithPgid(pgid) => kill_group(pgid, signal)?,
ProcessFilter::Any => kill_all(signal, ctx)?,
ProcessFilter::WithPid(pid) => kill(pid, signal, ctx)?,
ProcessFilter::WithPgid(pgid) => kill_group(pgid, signal, ctx)?,
}
Ok(())
}

2
kernel/src/syscall/tgkill.rs
View File

@ -28,6 +28,6 @@ pub fn sys_tgkill(tgid: Pid, tid: Tid, sig_num: u8, ctx: &Context) -> Result<Sys
let uid = ctx.posix_thread.credentials().ruid();
UserSignal::new(sig_num, UserSignalKind::Tkill, pid, uid)
});
tgkill(tid, tgid, signal)?;
tgkill(tid, tgid, signal, ctx)?;
Ok(SyscallReturn::Return(0))
}

2
kernel/src/syscall/wait4.rs
View File

@ -27,7 +27,7 @@ pub fn sys_wait4(
return Ok(SyscallReturn::Return(0 as _));
};
let (return_pid, exit_code) = (process.pid(), process.exit_code().unwrap());
let (return_pid, exit_code) = (process.pid(), process.exit_code());
if exit_status_ptr != 0 {
ctx.get_user_space()
.write_val(exit_status_ptr as _, &exit_code)?;