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Optimize the latency of lat-sig-install

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This commit is contained in:
Jianfeng Jiang
2024-08-30 09:12:07 +00:00
committed by Tate, Hongliang Tian
parent cf9c71119a
commit fb718fd440
17 changed files with 148 additions and 99 deletions
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3
kernel/src/syscall/futex.rs
View File

@ -3,6 +3,7 @@
use core::time::Duration;
use crate::{
get_current_userspace,
prelude::*,
process::posix_thread::futex::{
futex_op_and_flags_from_u32, futex_requeue, futex_wait, futex_wait_bitset, futex_wake,
@ -45,7 +46,7 @@ pub fn sys_futex(
}
let timeout = {
let time_spec: timespec_t = CurrentUserSpace::get().read_val(timeout_addr)?;
let time_spec: timespec_t = get_current_userspace!().read_val(timeout_addr)?;
Duration::try_from(time_spec)?
};

20
kernel/src/syscall/rt_sigaction.rs
View File

@ -21,20 +21,24 @@ pub fn sys_rt_sigaction(
old_sig_action_addr,
sigset_size
);
let mut sig_dispositions = ctx.process.sig_dispositions().lock();
let old_action = sig_dispositions.get(sig_num);
let old_action_c = old_action.as_c_type();
if old_sig_action_addr != 0 {
ctx.get_user_space()
.write_val(old_sig_action_addr, &old_action_c)?;
}
if sig_action_addr != 0 {
let old_action = if sig_action_addr != 0 {
let sig_action_c = ctx
.get_user_space()
.read_val::<sigaction_t>(sig_action_addr)?;
let sig_action = SigAction::try_from(sig_action_c).unwrap();
trace!("sig action = {:?}", sig_action);
sig_dispositions.set(sig_num, sig_action);
sig_dispositions.set(sig_num, sig_action)
} else {
sig_dispositions.get(sig_num)
};
if old_sig_action_addr != 0 {
let old_action_c = old_action.as_c_type();
ctx.get_user_space()
.write_val(old_sig_action_addr, &old_action_c)?;
}
Ok(SyscallReturn::Return(0))