John Stultz fa4a1ff8ab locking: Add task::blocked_lock to serialize blocked_on state ...

So far, we have been able to utilize the mutex::wait_lock
for serializing the blocked_on state, but when we move to
proxying across runqueues, we will need to add more state
and a way to serialize changes to this state in contexts
where we don't hold the mutex::wait_lock.

So introduce the task::blocked_lock, which nests under the
mutex::wait_lock in the locking order, and rework the locking
to use it.

Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://patch.msgid.link/20260324191337.1841376-5-jstultz@google.com

2026-04-03 14:23:39 +02:00

..

irqflag-debug.c

…

lock_events_list.h

Merge tag 'bpf_res_spin_lock' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2025-03-30 13:06:27 -07:00

lock_events.c

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lock_events.h

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lockdep_internals.h

locking/lockdep: Change 'static const' variables to enum values

2025-07-14 21:57:29 -07:00

lockdep_proc.c

locking/lockdep: Avoid struct return in lock_stats()

2025-07-14 21:57:20 -07:00

lockdep_states.h

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lockdep.c

lockdep: Speed up lockdep_unregister_key() with expedited RCU synchronization

2025-07-14 21:57:29 -07:00

locktorture.c

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22 08:26:33 -08:00

Makefile

locking/lockdep: Disable KASAN instrumentation of lockdep.c

2025-03-08 00:55:03 +01:00

mcs_spinlock.h

locking: Allow obtaining result of arch_mcs_spin_lock_contended

2025-03-19 08:03:04 -07:00

mutex-debug.c

locking: Add task::blocked_lock to serialize blocked_on state

2026-04-03 14:23:39 +02:00

mutex.c

locking: Add task::blocked_lock to serialize blocked_on state

2026-04-03 14:23:39 +02:00

mutex.h

locking: Add task::blocked_lock to serialize blocked_on state

2026-04-03 14:23:39 +02:00

osq_lock.c

locking/osq_lock: Use atomic_try_cmpxchg_release() in osq_unlock()

2024-10-25 10:01:50 +02:00

percpu-rwsem.c

locking/percpu-rwsem: add freezable alternative to down_read

2025-04-07 09:37:16 +02:00

qrwlock.c

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qspinlock_paravirt.h

locking/pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase

2024-10-17 21:21:16 -07:00

qspinlock_stat.h

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qspinlock.c

locking: Move common qspinlock helpers to a private header

2025-03-19 08:02:29 -07:00

qspinlock.h

locking: Move common qspinlock helpers to a private header

2025-03-19 08:02:29 -07:00

rtmutex_api.c

locking/mutex: Redo __mutex_init() to reduce generated code size

2025-12-01 06:51:57 +01:00

rtmutex_common.h

locking/local_lock: Introduce local_lock_is_locked().

2025-09-29 09:42:35 +02:00

rtmutex.c

locking/lock_events: Add locking events for rtmutex slow paths

2025-03-08 00:55:03 +01:00

rwbase_rt.c

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rwsem.c

Merge tag 'mm-nonmm-stable-2025-08-03-12-47' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-08-03 16:23:09 -07:00

semaphore.c

hung_task: show the blocker task if the task is hung on semaphore

2025-05-11 17:54:08 -07:00

spinlock_debug.c

locking/spinlock/debug: Fix data-race in do_raw_write_lock

2025-10-21 12:31:55 +02:00

spinlock_rt.c

Merge tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2024-11-19 14:16:06 -08:00

spinlock.c

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test-ww_mutex.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

ww_mutex.h

locking: Add task::blocked_lock to serialize blocked_on state

2026-04-03 14:23:39 +02:00

ww_rt_mutex.c

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