| /linux/Documentation/i2c/ |
| H A D | i2c-topology.rst | 40 mux-locked or parent-locked muxes.
43 Mux-locked muxes
46 Mux-locked muxes does not lock the entire parent adapter during the
48 adapter are locked. Mux-locked muxes are mostly interesting if the
50 their tasks. Since the parent adapter is not fully locked during the
55 Mux-locked Example
62 | root |--+--| locked | '--------'
87 Mux-locked caveats
90 When using a mux-locked mux, be aware of the following restrictions:
93 If you build a topology with a mux-locked mux being the parent
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| /linux/kernel/locking/ |
| H A D | qspinlock_paravirt.h | 92 try_cmpxchg_acquire(&lock->locked, &old, _Q_LOCKED_VAL)) { in pv_hybrid_queued_unfair_trylock()
124 return !READ_ONCE(lock->locked) && in trylock_clear_pending()
299 if (READ_ONCE(node->locked)) in pv_wait_node()
319 if (!READ_ONCE(node->locked)) { in pv_wait_node()
340 !READ_ONCE(node->locked)); in pv_wait_node()
387 WRITE_ONCE(lock->locked, _Q_SLOW_VAL); in pv_kick_node()
452 if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) { in pv_wait_head_or_lock()
458 WRITE_ONCE(lock->locked, _Q_LOCKED_VAL); in pv_wait_head_or_lock()
466 pv_wait(&lock->locked, _Q_SLOW_VAL); in pv_wait_head_or_lock()
499 __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked) in __pv_queued_spin_unlock_slowpath() argument
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| H A D | mcs_spinlock.h | 53 * on this node->locked until the previous lock holder sets the node->locked
62 node->locked = 0;
74 * Lock acquired, don't need to set node->locked to 1. Threads in mcs_spin_lock()
75 * only spin on its own node->locked value for lock acquisition. in mcs_spin_lock()
77 * and does not proceed to spin on its own node->locked, this in mcs_spin_lock()
79 * audit lock status, then set node->locked value here. in mcs_spin_lock()
86 arch_mcs_spin_lock_contended(&node->locked); in mcs_spin_lock()
110 arch_mcs_spin_unlock_contended(&next->locked); in mcs_spin_unlock()
20 int locked; /* 1 if lock acquired */ global() member
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| /linux/scripts/coccinelle/locks/ |
| H A D | double_lock.cocci | 17 @locked@
42 expression x <= locked.E1;
43 expression locked.E1;
46 position locked.p,p1,p2;
55 position p1 != locked.p1;
56 position locked.p;
58 expression x <= locked.E1;
59 expression E,locked.E1;
78 expression x <= locked.E1;
79 expression locked.E1;
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| H A D | call_kern.cocci | 39 @locked exists@
74 @depends on locked && patch@
81 @depends on locked && !patch@
90 p1 << locked.p1;
91 p2 << locked.p2;
101 p1 << locked.p1;
102 p2 << locked.p2;
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| /linux/tools/testing/selftests/net/forwarding/ |
| H A D | bridge_locked_port.sh | 102 bridge link set dev $swp1 locked on
112 bridge link set dev $swp1 locked off
133 bridge link set dev $swp1 locked on
142 bridge link set dev $swp1 locked off
161 bridge link set dev $swp1 locked on
170 bridge link set dev $swp1 locked off
187 bridge link set dev $swp1 learning on locked on
195 bridge link set dev $swp1 learning on locked on mab on
212 bridge link set dev $swp1 learning off locked off mab off
226 bridge link set dev $swp1 learning on locked on mab on
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| /linux/drivers/net/ethernet/intel/ice/ |
| H A D | ice_dcb_lib.h | 18 int ice_dcb_sw_dflt_cfg(struct ice_pf *pf, bool ets_willing, bool locked);
24 ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked);
26 void ice_pf_dcb_recfg(struct ice_pf *pf, bool locked);
28 int ice_init_pf_dcb(struct ice_pf *pf, bool locked);
96 ice_init_pf_dcb(struct ice_pf *pf, bool __always_unused locked) in ice_init_pf_dcb() argument
105 bool __always_unused locked) in ice_pf_dcb_cfg() argument
134 static inline void ice_pf_dcb_recfg(struct ice_pf *pf, bool locked) { } in ice_pf_dcb_recfg() argument
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| H A D | ice_dcb_lib.c | 283 static void ice_dcb_ena_dis_vsi(struct ice_pf *pf, bool ena, bool locked) in ice_dcb_ena_dis_vsi() argument
297 ice_ena_vsi(vsi, locked); in ice_dcb_ena_dis_vsi()
299 ice_dis_vsi(vsi, locked); in ice_dcb_ena_dis_vsi()
350 int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked) in ice_pf_dcb_cfg() argument
415 if (!locked) in ice_pf_dcb_cfg()
449 if (!locked) in ice_pf_dcb_cfg()
605 static int ice_dcb_init_cfg(struct ice_pf *pf, bool locked) in ice_dcb_init_cfg() argument
620 if (ice_pf_dcb_cfg(pf, newcfg, locked)) in ice_dcb_init_cfg()
634 int ice_dcb_sw_dflt_cfg(struct ice_pf *pf, bool ets_willing, bool locked) in ice_dcb_sw_dflt_cfg() argument
667 ret = ice_pf_dcb_cfg(pf, dcbcfg, locked); in ice_dcb_sw_dflt_cfg()
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| /linux/mm/ |
| H A D | gup.c | 1089 int *locked) in faultin_page() argument
1134 *locked = 0; in faultin_page()
1156 *locked = 0; in faultin_page()
1357 int *locked) in __get_user_pages() argument
1429 PTR_ERR(page) == -EMLINK, locked); in __get_user_pages()
1653 int *locked, in __get_user_pages_locked() argument
1666 if (!*locked) { in __get_user_pages_locked()
1670 *locked = 1; in __get_user_pages_locked()
1693 locked); in __get_user_pages_locked()
1701 VM_WARN_ON_ONCE(!*locked && (ret < 0 || ret >= nr_pages)); in __get_user_pages_locked()
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| H A D | memcontrol-v1.h | 62 bool memcg1_oom_prepare(struct mem_cgroup *memcg, bool *locked);
63 void memcg1_oom_finish(struct mem_cgroup *memcg, bool locked);
105 static inline bool memcg1_oom_prepare(struct mem_cgroup *memcg, bool *locked) in memcg1_oom_prepare() argument
107 *locked = false; in memcg1_oom_prepare()
110 static inline void memcg1_oom_finish(struct mem_cgroup *memcg, bool locked) {} in memcg1_oom_finish() argument
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| H A D | mlock.c | 622 unsigned long locked; in do_mlock() local
636 locked = len >> PAGE_SHIFT; in do_mlock()
641 locked += current->mm->locked_vm; in do_mlock()
642 if ((locked > lock_limit) && (!capable(CAP_IPC_LOCK))) { in do_mlock()
649 locked -= count_mm_mlocked_page_nr(current->mm, in do_mlock()
654 if ((locked <= lock_limit) || capable(CAP_IPC_LOCK)) in do_mlock()
806 unsigned long lock_limit, locked; in user_shm_lock() local
810 locked = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; in user_shm_lock()
815 memlock = inc_rlimit_ucounts(ucounts, UCOUNT_RLIMIT_MEMLOCK, locked); in user_shm_lock()
818 dec_rlimit_ucounts(ucounts, UCOUNT_RLIMIT_MEMLOCK, locked); in user_shm_lock()
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| H A D | hmm.c | 36 bool *locked; member
654 if (hmm_vma_walk->locked) in hmm_do_fault()
673 if (hmm_vma_walk->locked) /* needed by sparse */ in hmm_do_fault()
674 *hmm_vma_walk->locked = false; in hmm_do_fault()
693 static int hmm_range_fault_locked(struct hmm_range *range, bool *locked) in hmm_range_fault_locked() argument
697 .locked = locked, in hmm_range_fault_locked()
793 bool locked = false; in hmm_range_fault_unlocked_timeout() local
803 if (timeout && !locked) in hmm_range_fault_unlocked_timeout()
823 locked = true; in hmm_range_fault_unlocked_timeout()
824 ret = hmm_range_fault_locked(range, &locked); in hmm_range_fault_unlocked_timeout()
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| /linux/drivers/media/dvb-frontends/ |
| H A D | lgs8gxx.c | 295 static int lgs8gxx_is_locked(struct lgs8gxx_state *priv, u8 *locked) in lgs8gxx_is_locked() argument
308 *locked = ((t & 0x80) == 0x80) ? 1 : 0; in lgs8gxx_is_locked()
310 *locked = ((t & 0xC0) == 0xC0) ? 1 : 0; in lgs8gxx_is_locked()
315 static int lgs8gxx_wait_ca_lock(struct lgs8gxx_state *priv, u8 *locked) in lgs8gxx_wait_ca_lock() argument
331 *locked = (ret == 0) ? 1 : 0; in lgs8gxx_wait_ca_lock()
359 u8 *locked) in lgs8gxx_autolock_gi() argument
384 err = lgs8gxx_wait_ca_lock(priv, locked); in lgs8gxx_autolock_gi()
385 if (err || !(*locked)) in lgs8gxx_autolock_gi()
393 *locked = 0; in lgs8gxx_autolock_gi()
403 u8 locked = 0, tmp_gi; in lgs8gxx_auto_detect() local
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| H A D | atbm8830.c | 147 static int is_locked(struct atbm_state *priv, u8 *locked) in is_locked() argument
153 if (locked != NULL) in is_locked()
154 *locked = (status == 1); in is_locked()
261 u8 locked = 0; in atbm8830_set_fe() local
277 is_locked(priv, &locked); in atbm8830_set_fe()
278 if (locked != 0) { in atbm8830_set_fe()
329 u8 locked = 0; in atbm8830_read_status() local
335 is_locked(priv, &locked); in atbm8830_read_status()
336 if (locked) { in atbm8830_read_status()
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| /linux/tools/testing/selftests/bpf/progs/ |
| H A D | bpf_arena_spin_lock.h | |
| /linux/tools/testing/selftests/bpf/libarena/include/ |
| H A D | bpf_arena_spin_lock.h | 33 u8 locked; member
48 u8 locked; member
60 int locked; member
200 WRITE_ONCE(lock->locked, _Q_LOCKED_VAL); in set_locked()
301 (void)smp_cond_load_acquire_label(&lock->locked, !VAL, release_err); in arena_spin_lock_slowpath()
341 node->locked = 0; in arena_spin_lock_slowpath()
379 (void)arch_mcs_spin_lock_contended_label(&node->locked, release_node_err); in arena_spin_lock_slowpath()
442 arch_mcs_spin_unlock_contended(&next->locked); in arena_spin_lock_slowpath()
516 smp_store_release(&lock->locked, 0); in arena_spin_unlock()
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| /linux/drivers/thermal/intel/ |
| H A D | intel_quark_dts_thermal.c | 100 bool locked; member
129 if (!aux_entry->locked) { in soc_dts_enable()
157 if (!aux_entry->locked) { in soc_dts_disable()
206 if (aux_entry->locked) { in update_trip_temp()
316 if (!aux_entry->locked) { in free_soc_dts()
351 aux_entry->locked = !!(out & QRK_DTS_LOCK_BIT); in alloc_soc_dts()
354 if (!aux_entry->locked) { in alloc_soc_dts()
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| /linux/sound/core/seq/ |
| H A D | seq_queue.c | 88 static struct snd_seq_queue *queue_new(int owner, int locked) in queue_new() argument
114 q->locked = locked; in queue_new()
160 struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int info_flags) in snd_seq_queue_alloc() argument
164 q = queue_new(client, locked); in snd_seq_queue_alloc()
339 return (q->owner == client) || (!q->locked && !q->klocked); in check_access()
379 int snd_seq_queue_set_owner(int queueid, int client, int locked) in snd_seq_queue_set_owner() argument
390 q->locked = locked ? 1 : 0; in snd_seq_queue_set_owner()
675 bool locked; in snd_seq_info_queues_read() local
690 locked = q->locked; in snd_seq_info_queues_read()
696 snd_iprintf(buffer, "lock status : %s\n", locked ? "Locked" : "Free"); in snd_seq_info_queues_read()
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| /linux/rust/pin-init/examples/ |
| H A D | mutex.rs | 70 locked: Cell<bool>,
81 locked: Cell::new(false), in new()
89 if self.locked.get() { in new()
92 while self.locked.get() { in lock()
99 self.locked.set(true); in lock()
127 self.mtx.locked.set(false);
71 locked: Cell<bool>, global() field
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| /linux/drivers/watchdog/ |
| H A D | intel_oc_wdt.c | 45 bool locked; member
62 if (oc_wdt->locked) in intel_oc_wdt_start()
126 oc_wdt->locked = !!(val & INTEL_OC_WDT_CTL_LCK); in intel_oc_wdt_setup()
136 if (oc_wdt->locked) { in intel_oc_wdt_setup()
153 } else if (oc_wdt->locked) { in intel_oc_wdt_setup()
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| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-platform-intel-pmc | 15 * bit 31 - global reset is locked
20 in case the register is not locked.
21 The "global reset bit" should be locked on a production
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| /linux/drivers/gpu/drm/i915/ |
| H A D | i915_scheduler.c | 130 struct i915_sched_engine *locked, in lock_sched_engine() argument
136 GEM_BUG_ON(!locked); in lock_sched_engine()
144 while (locked != (sched_engine = READ_ONCE(rq->engine)->sched_engine)) { in lock_sched_engine()
145 spin_unlock(&locked->lock); in lock_sched_engine()
148 locked = sched_engine; in lock_sched_engine()
151 GEM_BUG_ON(locked != sched_engine); in lock_sched_engine()
152 return locked; in lock_sched_engine()
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| /linux/drivers/gpu/drm/i915/gt/ |
| H A D | mock_engine.c | 264 struct intel_engine_cs *engine, *locked; in mock_remove_from_engine() local
273 locked = READ_ONCE(rq->engine); in mock_remove_from_engine()
274 spin_lock_irq(&locked->sched_engine->lock); in mock_remove_from_engine()
275 while (unlikely(locked != (engine = READ_ONCE(rq->engine)))) { in mock_remove_from_engine()
276 spin_unlock(&locked->sched_engine->lock); in mock_remove_from_engine()
278 locked = engine; in mock_remove_from_engine()
281 spin_unlock_irq(&locked->sched_engine->lock); in mock_remove_from_engine()
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| /linux/tools/testing/selftests/mm/ |
| H A D | mlock2-tests.c | 134 bool locked; in is_vma_lock_on_fault()
137 locked = is_vmflag_set(addr, LOCKED); in is_vma_lock_on_fault()
138 if (!locked) in is_vma_lock_on_fault()
154 bool locked; in lock_check()
157 locked = is_vmflag_set(addr, LOCKED); in lock_check()
158 if (!locked) in lock_check()
303 ksft_test_result(!unlock_lock_check(map, true), "%s: No locked memory\n", __func__); in test_munlockall1()
343 ksft_test_result(!unlock_lock_check(map, true), "%s: No locked memory\n", __func__); in test_vma_management()
373 "%s: droppable memory not locked\n", __func__); in test_vma_management()
400 ksft_test_result(!unlock_lock_check(map, false), "%s: droppable memory not locked\ in test_vma_management()
133 bool locked; is_vma_lock_on_fault() local
153 bool locked; lock_check() local
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| /linux/kernel/bpf/ |
| H A D | rqspinlock.c | 409 res_smp_cond_load_acquire(&lock->locked, !VAL || RES_CHECK_TIMEOUT(ts, ret, _Q_LOCKED_MASK)); in resilient_queued_spin_lock_slowpath()
496 node->locked = 0; in resilient_queued_spin_lock_slowpath()
536 val = arch_mcs_spin_lock_contended(&node->locked); in resilient_queued_spin_lock_slowpath()
577 arch_mcs_spin_unlock_contended(&next->locked); in resilient_queued_spin_lock_slowpath()
610 WRITE_ONCE(next->locked, RES_TIMEOUT_VAL); in resilient_queued_spin_lock_slowpath()
650 arch_mcs_spin_unlock_contended(&next->locked); in resilient_queued_spin_lock_slowpath()
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