vasilito
34360e1e4f
P0-P2: Barrier SMP, sigmask/pthread_kill races, robust mutexes, RT scheduling, POSIX sched API P3: PerCpuSched struct, per-CPU wiring, work stealing, load balancing, initial placement P4: 64-shard futex table, REQUEUE, PI futexes (LOCK_PI/UNLOCK_PI/TRYLOCK_PI), robust futexes, vruntime tracking, min-vruntime SCHED_OTHER selection P5: setpriority/getpriority, pthread_setaffinity_np, pthread_setname_np, pthread_setschedparam (Redox) P6: Cache-affine scheduling (last_cpu + vruntime bonus), NUMA topology kernel hints + numad userspace daemon Stability fixes: make_consistent stores 0 (dead TID fix), cond.rs error propagation, SPIN_COUNT adaptive spinning, Sys::open &str fix, PI futex CAS race, proc.rs lock ordering, barrier destroy Patches: 33 kernel + 58 relibc patches, all tracked in recipes Docs: KERNEL-SCHEDULER-MULTITHREAD-IMPROVEMENT-PLAN.md updated, SCHEDULER-REVIEW-FINAL.md created Architecture: NUMA topology parsing stays userspace (numad daemon), kernel stores lightweight NumaTopology hints
22 lines
1.1 KiB
Diff
22 lines
1.1 KiB
Diff
diff --git a/src/syscall/futex.rs b/src/syscall/futex.rs
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--- a/src/syscall/futex.rs
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+++ b/src/syscall/futex.rs
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@@
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- let futex_atomic = futex_atomic_u32(locked_physaddr);
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- let mut current = futex_atomic.load(Ordering::SeqCst);
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+ let futex_atomic = futex_atomic_u32(locked_physaddr);
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+ let mut current = futex_atomic.load(Ordering::SeqCst);
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+ let queue = futexes
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+ .entry(locked_physaddr)
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+ .or_insert_with(FutexQueue::default);
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loop {
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let owner_tid = current & FUTEX_TID_MASK;
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- let queue = futexes
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- .entry(locked_physaddr)
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- .or_insert_with(FutexQueue::default);
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let desired_waiters = if queue.waiters.is_empty() {
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0
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} else {
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FUTEX_WAITERS
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