| /linux/drivers/media/mc/ |
| H A D | mc-dev-allocator.c | 31 struct module *owner; member
63 struct module *owner) in __media_device_get() argument
73 /* get module reference for the media_device owner */ in __media_device_get()
74 if (owner != mdi->owner && !try_module_get(mdi->owner)) in __media_device_get()
76 "%s: module %s get owner reference error\n", in __media_device_get()
79 dev_dbg(dev, "%s: module %s got owner reference\n", in __media_device_get()
88 mdi->owner = owner; in __media_device_get()
92 dev_dbg(dev, "%s: Allocated media device for owner %s\n", in __media_device_get()
99 struct module *owner) in media_device_usb_allocate() argument
104 mdev = __media_device_get(&udev->dev, module_name, owner); in media_device_usb_allocate()
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| /linux/arch/s390/lib/ |
| H A D | spinlock.c | 95 int owner; in arch_load_niai4() local
99 " l %[owner],%[lock]" in arch_load_niai4()
100 : [owner] "=d" (owner) : [lock] "R" (*lock) : "memory"); in arch_load_niai4()
101 return owner; in arch_load_niai4()
159 int lockval, ix, node_id, tail_id, old, new, owner, count; in arch_spin_lock_queued() local
200 owner = arch_spin_yield_target(old, node); in arch_spin_lock_queued()
201 if (owner && arch_vcpu_is_preempted(owner - 1)) in arch_spin_lock_queued()
202 smp_yield_cpu(owner - 1); in arch_spin_lock_queued()
212 owner = arch_spin_yield_target(old, node); in arch_spin_lock_queued()
213 if (owner && arch_vcpu_is_preempted(owner - 1)) in arch_spin_lock_queued()
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| /linux/rust/kernel/sync/ |
| H A D | locked_by.rs | 79 owner: *const U, field
97 /// It stores a raw pointer to the owner that is never dereferenced. It is only used to ensure
98 /// that the right owner is being used to access the protected data. If the owner is freed, the
99 /// data becomes inaccessible; if another instance of the owner is allocated *on the same
102 pub fn new<B: Backend>(owner: &Lock<U, B>, data: T) -> Self { in new()
108 owner: owner.data.get(), in new()
116 /// reference) that the owner is locked.
123 /// Panics if `owner` is different from the data protected by the lock used in
125 pub fn access<'a>(&'a self, owner: &'a U) -> &'a T in access()
131 "`U` cannot be a ZST because `owner` wouldn't be unique" in access()
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| /linux/fs/btrfs/ |
| H A D | locking.h | 96 * @owner: The struct where the lockdep map is defined
104 #define btrfs_might_wait_for_event(owner, lock) \ argument
106 rwsem_acquire(&owner->lock##_map, 0, 0, _THIS_IP_); \
107 rwsem_release(&owner->lock##_map, _THIS_IP_); \
113 * @owner: The struct where the lockdep map is defined
121 #define btrfs_lockdep_acquire(owner, lock) \ argument
122 rwsem_acquire_read(&owner->lock##_map, 0, 0, _THIS_IP_)
128 #define btrfs_lockdep_release(owner, lock) \ argument
129 rwsem_release(&owner->lock##_map, _THIS_IP_)
135 #define btrfs_lockdep_inode_acquire(owner, lock) \ argument
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| /linux/kernel/locking/ |
| H A D | spinlock_debug.c | 29 lock->owner = SPINLOCK_OWNER_INIT; in __raw_spin_lock_init()
48 lock->owner = SPINLOCK_OWNER_INIT; in __rwlock_init()
57 struct task_struct *owner = READ_ONCE(lock->owner); in spin_dump() local
59 if (owner == SPINLOCK_OWNER_INIT) in spin_dump()
60 owner = NULL; in spin_dump()
64 printk(KERN_EMERG " lock: %pS, .magic: %08x, .owner: %s/%d, " in spin_dump()
67 owner ? owner->comm : "<none>", in spin_dump()
68 owner ? task_pid_nr(owner) : -1, in spin_dump()
87 SPIN_BUG_ON(READ_ONCE(lock->owner) == current, lock, "recursion"); in debug_spin_lock_before()
95 WRITE_ONCE(lock->owner, current); in debug_spin_lock_after()
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| H A D | mutex.c | 49 atomic_long_set(&lock->owner, 0); in __mutex_init()
60 static inline struct task_struct *__owner_task(unsigned long owner) in __owner_task() argument
62 return (struct task_struct *)(owner & ~MUTEX_FLAGS); in __owner_task()
71 static inline unsigned long __owner_flags(unsigned long owner) in __owner_flags() argument
73 return owner & MUTEX_FLAGS; in __owner_flags()
79 unsigned long owner = atomic_long_read(&lock->owner); in mutex_get_owner() local
81 return (unsigned long)__owner_task(owner); in mutex_get_owner()
89 unsigned long owner, curr = (unsigned long)current; in __mutex_trylock_common() local
91 owner = atomic_long_read(&lock->owner); in __mutex_trylock_common()
93 unsigned long flags = __owner_flags(owner); in __mutex_trylock_common()
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| H A D | rwsem.c | 37 * The least significant 2 bits of the owner value has the following
46 * into the owner field. It is cleared after an unlock.
49 * pointer into the owner field with the RWSEM_READER_OWNED bit set.
50 * On unlock, the owner field will largely be left untouched. So
51 * for a free or reader-owned rwsem, the owner value may contain
71 …WARN_ONCE(c, "DEBUG_RWSEMS_WARN_ON(%s): count = 0x%lx, magic = 0x%lx, owner = 0x%lx, curr 0x%lx, l…
74 atomic_long_read(&(sem)->owner), (long)current, \
132 * All writes to owner are protected by WRITE_ONCE() to make sure that
134 * the owner value concurrently without lock. Read from owner, however,
144 atomic_long_set(&sem->owner, (long)current); in rwsem_set_owner()
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| /linux/net/core/ |
| H A D | devmem.c | 42 struct dmabuf_genpool_chunk_owner *owner = chunk->owner; in net_devmem_dmabuf_free_chunk_owner() local
44 kvfree(owner->area.niovs); in net_devmem_dmabuf_free_chunk_owner()
45 kfree(owner); in net_devmem_dmabuf_free_chunk_owner()
50 struct dmabuf_genpool_chunk_owner *owner; in net_devmem_get_dma_addr() local
52 owner = net_devmem_iov_to_chunk_owner(niov); in net_devmem_get_dma_addr()
53 return owner->base_dma_addr + in net_devmem_get_dma_addr()
85 struct dmabuf_genpool_chunk_owner *owner; in net_devmem_alloc_dmabuf() local
92 (void **)&owner); in net_devmem_alloc_dmabuf()
96 offset = dma_addr - owner->base_dma_addr; in net_devmem_alloc_dmabuf()
98 niov = &owner->area.niovs[index]; in net_devmem_alloc_dmabuf()
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| /linux/scripts/coccinelle/api/ |
| H A D | platform_no_drv_owner.cocci | 2 /// Remove .owner field if calls are used which set it automatically
40 - .owner = THIS_MODULE,
49 - .owner = THIS_MODULE,
71 - .owner = THIS_MODULE,
80 - .owner = THIS_MODULE,
93 * .owner@j0 = THIS_MODULE,
104 * .owner@j0 = THIS_MODULE,
115 * .owner@j0 = THIS_MODULE,
126 * .owner@j0 = THIS_MODULE,
136 msg = "No need to set .owner here. The core will do it."
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| /linux/kernel/futex/ |
| H A D | pi.c | 27 pi_state->owner = NULL; in refill_pi_state_cache()
49 struct task_struct *old_owner = pi_state->owner; in pi_state_update_owner()
64 pi_state->owner = new_owner; in pi_state_update_owner()
87 * If pi_state->owner is NULL, the owner is most probably dying in put_pi_state()
90 if (pi_state->owner) { in put_pi_state()
104 * clear pi_state->owner. in put_pi_state()
107 pi_state->owner = NULL; in put_pi_state()
116 * Waiter | pi_state | pi->owner | uTID | uODIED | ?
138 * thread is found then it indicates that the owner TI
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| /linux/Documentation/locking/ |
| H A D | rt-mutex.rst | 19 A low priority owner of a rt-mutex inherits the priority of a higher
21 boosted owner blocks on a rt-mutex itself it propagates the priority
22 boosting to the owner of the other rt_mutex it gets blocked on. The
34 rtmutex, only the top priority waiter is enqueued into the owner's
37 got a signal), the priority of the owner task is readjusted. The
46 The state of the rt-mutex is tracked via the owner field of the rt-mutex
49 lock->owner holds the task_struct pointer of the owner. Bit 0 is used to
53 owner bit0 Notes
63 possible when bit 0 of lock->owner is 0.
67 we need to set the bit0 before looking at the lock, and the owner may
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| H A D | rt-mutex-design.rst | 108 pi_waiters rbtree of a mutex owner task (described below).
301 Mutex owner and flags
304 The mutex structure contains a pointer to the owner of the mutex. If the
305 mutex is not owned, this owner is set to NULL. Since all architectures
341 The use of rt_mutex_cmpxchg with the flags in the owner field help optimize
394 (de)boosting (the owner of a mutex that a process is blocking on), a flag to
404 that the state of the owner and lock can change when entered into this function.
425 fails). Only when the owner field of the mutex is NULL can the lock be
435 tree of the owner.
446 the "Has Waiters" flag of the mutex's owner field. By setting this flag
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| /linux/fs/xfs/libxfs/ |
| H A D | xfs_rmap.c | 34 * Lookup the first record less than or equal to [bno, len, owner, offset]
41 uint64_t owner, in xfs_rmap_lookup_le() argument
52 cur->bc_rec.r.rm_owner = owner; in xfs_rmap_lookup_le()
72 * Lookup the record exactly matching [bno, len, owner, offset]
80 uint64_t owner, in xfs_rmap_lookup_eq() argument
87 cur->bc_rec.r.rm_owner = owner; in xfs_rmap_lookup_eq()
95 * by [bno, len, owner, offset].
125 uint64_t owner, in xfs_rmap_insert() argument
132 trace_xfs_rmap_insert(rcur, agbno, len, owner, offset, flags); in xfs_rmap_insert()
134 error = xfs_rmap_lookup_eq(rcur, agbno, len, owner, offset, flags, &i); in xfs_rmap_insert()
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| H A D | xfs_rmap.h | 88 uint64_t *owner, in xfs_owner_info_unpack() argument
94 *owner = oinfo->oi_owner; in xfs_owner_info_unpack()
106 uint64_t owner, in xfs_owner_info_pack() argument
110 oinfo->oi_owner = owner; in xfs_owner_info_pack()
127 uint64_t owner, uint64_t offset, unsigned int flags,
130 xfs_extlen_t len, uint64_t owner, uint64_t offset,
133 xfs_extlen_t len, uint64_t owner, uint64_t offset,
190 xfs_extlen_t len, uint64_t owner);
192 xfs_extlen_t len, uint64_t owner);
202 uint64_t owner, uint64_t offset, unsigned int flags,
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| /linux/kernel/bpf/ |
| H A D | bpf_local_storage.c | 27 static int mem_charge(struct bpf_local_storage_map *smap, void *owner, u32 size) in mem_charge() argument
34 return map->ops->map_local_storage_charge(smap, owner, size); in mem_charge()
37 static void mem_uncharge(struct bpf_local_storage_map *smap, void *owner, in mem_uncharge() argument
43 map->ops->map_local_storage_uncharge(smap, owner, size); in mem_uncharge()
47 owner_storage(struct bpf_local_storage_map *smap, void *owner) in owner_storage() argument
51 return map->ops->map_owner_storage_ptr(owner); in owner_storage()
75 bpf_selem_alloc(struct bpf_local_storage_map *smap, void *owner, in bpf_selem_alloc() argument
80 if (charge_mem && mem_charge(smap, owner, smap->elem_size)) in bpf_selem_alloc()
110 mem_uncharge(smap, owner, smap->elem_size); in bpf_selem_alloc()
246 /* reuse_now == true only happens when the storage owner in bpf_selem_free()
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| /linux/tools/testing/selftests/ftrace/test.d/00basic/ |
| H A D | test_ownership.tc | 13 # find another owner and group that is not the original
31 owner=`stat -c "%u" $file`
34 echo "testing $file $owner=$original_owner and $group=$test_group"
35 if [ $owner -ne $original_owner ]; then
42 # Note, the remount does not update ownership so test going to and from owner
43 echo "test owner $file to $other_owner"
45 owner=`stat -c "%u" $file`
46 if [ $owner -ne $other_owner ]; then
51 owner=`stat -c "%u" $file`
52 if [ $owner -ne $original_owner ]; then
|
| /linux/Documentation/mm/ |
| H A D | page_owner.rst | 2 page owner: Tracking about who allocated each page
8 page owner is for the tracking about who allocated each page.
22 page owner can also be used for various purposes. For example, accurate
24 each page. It is already implemented and activated if page owner is
32 page owner is disabled by default. So, if you'd like to use it, you need
34 with page owner and page owner is disabled in runtime due to not enabling
36 doesn't require memory to store owner information, so there is no runtime
37 memory overhead. And, page owner inserts just two unlikely branches into
39 like as the kernel without page owner. These two unlikely branches should
44 Although enabling page owner increases kernel size by several kilobytes,
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| /linux/drivers/gpu/drm/imagination/ |
| H A D | pvr_stream_defs.c | 13 #define PVR_STREAM_DEF_SET(owner, member, _size, _array_size, _feature) \ argument
14 { .offset = offsetof(struct owner, member), \
19 #define PVR_STREAM_DEF(owner, member, member_size) \ argument
20 PVR_STREAM_DEF_SET(owner, member, PVR_STREAM_SIZE_ ## member_size, 0, PVR_FEATURE_NONE)
22 #define PVR_STREAM_DEF_FEATURE(owner, member, member_size, feature) \ argument
23 PVR_STREAM_DEF_SET(owner, member, PVR_STREAM_SIZE_ ## member_size, 0, feature)
25 #define PVR_STREAM_DEF_NOT_FEATURE(owner, member, member_size, feature) \ argument
26 PVR_STREAM_DEF_SET(owner, member, PVR_STREAM_SIZE_ ## member_size, 0, \
29 #define PVR_STREAM_DEF_ARRAY(owner, member) \ argument
30 PVR_STREAM_DEF_SET(owner, member, PVR_STREAM_SIZE_ARRAY, \
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| /linux/drivers/regulator/ |
| H A D | lp8788-ldo.c | 193 .owner = THIS_MODULE,
206 .owner = THIS_MODULE,
219 .owner = THIS_MODULE,
232 .owner = THIS_MODULE,
245 .owner = THIS_MODULE,
258 .owner = THIS_MODULE,
271 .owner = THIS_MODULE,
284 .owner = THIS_MODULE,
297 .owner = THIS_MODULE,
310 .owner = THIS_MODULE,
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| /linux/drivers/misc/ |
| H A D | ntsync.c | 62 pid_t owner; member
106 __u32 owner; member
230 static bool is_signaled(struct ntsync_obj *obj, __u32 owner) in is_signaled() argument
238 if (obj->u.mutex.owner && obj->u.mutex.owner != owner) in is_signaled()
272 if (!is_signaled(q->entries[i].obj, q->owner)) { in try_wake_all()
291 obj->u.mutex.owner = q->owner; in try_wake_all()
353 if (mutex->u.mutex.owner && mutex->u.mutex.owner != q->owner) in try_wake_any_mutex()
361 mutex->u.mutex.owner = q->owner; in try_wake_any_mutex()
441 * Actually change the mutex state, returning -EPERM if not the owner.
448 if (mutex->u.mutex.owner != args->owner) in unlock_mutex_state()
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| /linux/sound/soc/intel/avs/ |
| H A D | path.c | 75 if (path->template->owner == template) { in avs_path_find_path()
155 if (id->id != path->template->owner->id || in avs_path_set_constraint()
156 strcmp(id->tplg_name, path->template->owner->owner->name)) in avs_path_set_constraint()
411 dma_id = mod->owner->owner->dma_id; in avs_whm_create()
429 ret = avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id, t->core_id, in avs_get_module_control()
445 dma_id = mod->owner->owner->dma_id; in avs_peakvol_set_volume()
464 ret = avs_dsp_init_module(adev, mod->module_id, mod->owner in avs_peakvol_set_volume()
819 avs_path_module_create(struct avs_dev * adev,struct avs_path_pipeline * owner,struct avs_tplg_module * template) avs_path_module_create() argument
912 avs_path_binding_create(struct avs_dev * adev,struct avs_path_pipeline * owner,struct avs_tplg_binding * t) avs_path_binding_create() argument
984 avs_path_pipeline_create(struct avs_dev * adev,struct avs_path * owner,struct avs_tplg_pipeline * template) avs_path_pipeline_create() argument
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| /linux/include/linux/framer/ |
| H A D | framer-provider.h | 35 * @owner: the module owner containing the ops
80 struct module *owner; member
86 * @owner: the module owner having of_xlate
92 struct module *owner; member
123 __framer_provider_of_register(struct device *dev, struct module *owner,
130 __devm_framer_provider_of_register(struct device *dev, struct module *owner,
162 __framer_provider_of_register(struct device *dev, struct module *owner, in __framer_provider_of_register() argument
174 __devm_framer_provider_of_register(struct device *dev, struct module *owner, in __devm_framer_provider_of_register() argument
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| /linux/tools/perf/util/bpf_skel/ |
| H A D | lock_contention.bpf.c | 36 /* buffer for owner stacktrace */
44 /* a map for tracing owner stacktrace to owner stack id */
47 __uint(key_size, sizeof(__u64)); // owner stacktrace
48 __uint(value_size, sizeof(__s32)); // owner stack id
52 /* a map for tracing lock address to owner data */
60 /* a map for contention_key (stores owner stack id) to contention data */
163 struct task_struct *owner; member
167 atomic_long_t owner; member
329 __u64 owner = 0; in get_lock_owner() local
333 owner = BPF_CORE_READ(mutex, owner.counter); in get_lock_owner()
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| /linux/drivers/media/v4l2-core/ |
| H A D | v4l2-spi.c | 24 /* the owner is the same as the spi_device's driver owner */ in v4l2_spi_subdev_init()
25 sd->owner = spi->dev.driver->owner; in v4l2_spi_subdev_init()
53 if (!try_module_get(spi->dev.driver->owner)) in v4l2_spi_new_subdev()
62 if (__v4l2_device_register_subdev(v4l2_dev, sd, sd->owner)) in v4l2_spi_new_subdev()
66 module_put(spi->dev.driver->owner); in v4l2_spi_new_subdev()
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| /linux/kernel/ |
| H A D | audit_tree.c | 35 struct audit_tree *owner; member
135 if (chunk->owners[i].owner) in free_chunk()
136 put_tree(chunk->owners[i].owner); in free_chunk()
267 if (chunk->owners[n].owner == tree) in audit_tree_match()
297 struct audit_tree *owner; in replace_chunk() local
302 list_for_each_entry(owner, &new->trees, same_root) in replace_chunk()
303 owner->root = new; in replace_chunk()
305 if (!old->owners[j].owner) { in replace_chunk()
309 owner = old->owners[j].owner; in replace_chunk()
310 new->owners[i].owner = owner; in replace_chunk()
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