| /linux-4.19.296/include/linux/ |
| D | rwsem.h | 53 extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
54 extern struct rw_semaphore *rwsem_down_read_failed_killable(struct rw_semaphore *sem);
55 extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
56 extern struct rw_semaphore *rwsem_down_write_failed_killable(struct rw_semaphore *sem);
58 extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
64 static inline int rwsem_is_locked(struct rw_semaphore *sem) in rwsem_is_locked() argument
66 return atomic_long_read(&sem->count) != 0; in rwsem_is_locked()
96 extern void __init_rwsem(struct rw_semaphore *sem, const char *name,
99 #define init_rwsem(sem) \ argument
103 __init_rwsem((sem), #sem, &__key); \
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| D | percpu-rwsem.h | 32 static inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore *sem) in percpu_down_read_preempt_disable() argument
36 rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 0, _RET_IP_); in percpu_down_read_preempt_disable()
47 __this_cpu_inc(*sem->read_count); in percpu_down_read_preempt_disable()
48 if (unlikely(!rcu_sync_is_idle(&sem->rss))) in percpu_down_read_preempt_disable()
49 __percpu_down_read(sem, false); /* Unconditional memory barrier */ in percpu_down_read_preempt_disable()
57 static inline void percpu_down_read(struct percpu_rw_semaphore *sem) in percpu_down_read() argument
59 percpu_down_read_preempt_disable(sem); in percpu_down_read()
63 static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem) in percpu_down_read_trylock() argument
71 __this_cpu_inc(*sem->read_count); in percpu_down_read_trylock()
72 if (unlikely(!rcu_sync_is_idle(&sem->rss))) in percpu_down_read_trylock()
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| D | tty_ldisc.h | 138 extern void __init_ldsem(struct ld_semaphore *sem, const char *name,
141 #define init_ldsem(sem) \ argument
145 __init_ldsem((sem), #sem, &__key); \
149 extern int ldsem_down_read(struct ld_semaphore *sem, long timeout);
150 extern int ldsem_down_read_trylock(struct ld_semaphore *sem);
151 extern int ldsem_down_write(struct ld_semaphore *sem, long timeout);
152 extern int ldsem_down_write_trylock(struct ld_semaphore *sem);
153 extern void ldsem_up_read(struct ld_semaphore *sem);
154 extern void ldsem_up_write(struct ld_semaphore *sem);
157 extern int ldsem_down_read_nested(struct ld_semaphore *sem, int subclass,
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| D | rwsem-spinlock.h | 35 extern void __down_read(struct rw_semaphore *sem);
36 extern int __must_check __down_read_killable(struct rw_semaphore *sem);
37 extern int __down_read_trylock(struct rw_semaphore *sem);
38 extern void __down_write(struct rw_semaphore *sem);
39 extern int __must_check __down_write_killable(struct rw_semaphore *sem);
40 extern int __down_write_trylock(struct rw_semaphore *sem);
41 extern void __up_read(struct rw_semaphore *sem);
42 extern void __up_write(struct rw_semaphore *sem);
43 extern void __downgrade_write(struct rw_semaphore *sem);
44 extern int rwsem_is_locked(struct rw_semaphore *sem);
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| D | semaphore.h | 32 static inline void sema_init(struct semaphore *sem, int val) in sema_init() argument
35 *sem = (struct semaphore) __SEMAPHORE_INITIALIZER(*sem, val); in sema_init()
36 lockdep_init_map(&sem->lock.dep_map, "semaphore->lock", &__key, 0); in sema_init()
39 extern void down(struct semaphore *sem);
40 extern int __must_check down_interruptible(struct semaphore *sem);
41 extern int __must_check down_killable(struct semaphore *sem);
42 extern int __must_check down_trylock(struct semaphore *sem);
43 extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
44 extern void up(struct semaphore *sem);
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| D | key.h | 162 struct rw_semaphore sem; /* change vs change sem */ member
389 rwsem_is_locked(&((struct key *)(KEY))->sem)))
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| /linux-4.19.296/include/asm-generic/ |
| D | rwsem.h | 35 static inline void __down_read(struct rw_semaphore *sem) in __down_read() argument
37 if (unlikely(atomic_long_inc_return_acquire(&sem->count) <= 0)) in __down_read()
38 rwsem_down_read_failed(sem); in __down_read()
41 static inline int __down_read_killable(struct rw_semaphore *sem) in __down_read_killable() argument
43 if (unlikely(atomic_long_inc_return_acquire(&sem->count) <= 0)) { in __down_read_killable()
44 if (IS_ERR(rwsem_down_read_failed_killable(sem))) in __down_read_killable()
51 static inline int __down_read_trylock(struct rw_semaphore *sem) in __down_read_trylock() argument
55 while ((tmp = atomic_long_read(&sem->count)) >= 0) { in __down_read_trylock()
56 if (tmp == atomic_long_cmpxchg_acquire(&sem->count, tmp, in __down_read_trylock()
67 static inline void __down_write(struct rw_semaphore *sem) in __down_write() argument
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| /linux-4.19.296/drivers/i2c/busses/ |
| D | i2c-designware-baytrail.c | 33 static int get_sem(struct dw_i2c_dev *dev, u32 *sem) in get_sem() argument
45 *sem = data & PUNIT_SEMAPHORE_BIT; in get_sem()
66 u32 sem = PUNIT_SEMAPHORE_ACQUIRE; in baytrail_i2c_acquire() local
92 ret = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, addr, sem); in baytrail_i2c_acquire()
102 ret = get_sem(dev, &sem); in baytrail_i2c_acquire()
103 if (!ret && sem) { in baytrail_i2c_acquire()
117 ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, addr, &sem); in baytrail_i2c_acquire()
121 dev_err(dev->dev, "PUNIT SEM: %d\n", sem); in baytrail_i2c_acquire()
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| /linux-4.19.296/fs/jffs2/ |
| D | dir.c | 94 mutex_lock(&dir_f->sem); in jffs2_lookup()
107 mutex_unlock(&dir_f->sem); in jffs2_lookup()
132 mutex_lock(&f->sem); in jffs2_readdir()
153 mutex_unlock(&f->sem); in jffs2_readdir()
198 mutex_unlock(&f->sem); in jffs2_create()
267 mutex_lock(&f->sem); in jffs2_link()
269 mutex_unlock(&f->sem); in jffs2_link()
343 mutex_unlock(&f->sem); in jffs2_symlink()
353 mutex_unlock(&f->sem); in jffs2_symlink()
367 mutex_unlock(&f->sem); in jffs2_symlink()
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| D | write.c | 145 mutex_unlock(&f->sem); in jffs2_write_dnode()
150 mutex_lock(&f->sem); in jffs2_write_dnode()
297 mutex_unlock(&f->sem); in jffs2_write_dirent()
302 mutex_lock(&f->sem); in jffs2_write_dirent()
368 mutex_lock(&f->sem); in jffs2_write_inode_range()
397 mutex_unlock(&f->sem); in jffs2_write_inode_range()
420 mutex_unlock(&f->sem); in jffs2_write_inode_range()
424 mutex_unlock(&f->sem); in jffs2_write_inode_range()
460 mutex_lock(&f->sem); in jffs2_do_create()
473 mutex_unlock(&f->sem); in jffs2_do_create()
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| D | file.c | 125 mutex_lock(&f->sem); in jffs2_readpage()
127 mutex_unlock(&f->sem); in jffs2_readpage()
158 mutex_lock(&f->sem); in jffs2_write_begin()
185 mutex_unlock(&f->sem); in jffs2_write_begin()
200 mutex_unlock(&f->sem); in jffs2_write_begin()
205 mutex_unlock(&f->sem); in jffs2_write_begin()
227 mutex_lock(&f->sem); in jffs2_write_begin()
229 mutex_unlock(&f->sem); in jffs2_write_begin()
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| D | fs.c | 59 mutex_lock(&f->sem); in jffs2_do_setattr()
63 mutex_unlock(&f->sem); in jffs2_do_setattr()
68 mutex_unlock(&f->sem); in jffs2_do_setattr()
72 mutex_unlock(&f->sem); in jffs2_do_setattr()
92 mutex_lock(&f->sem); in jffs2_do_setattr()
145 mutex_unlock(&f->sem); in jffs2_do_setattr()
176 mutex_unlock(&f->sem); in jffs2_do_setattr()
273 mutex_lock(&f->sem); in jffs2_iget()
355 mutex_unlock(&f->sem); in jffs2_iget()
364 mutex_unlock(&f->sem); in jffs2_iget()
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| D | README.Locking | 37 Ordering constraints: See f->sem.
40 File Mutex f->sem
65 any f->sem held.
68 3. Never lock a page cache page with f->sem held.
86 the list are protected by the file mutex f->sem. But the erase code
111 Note, the f->sem guarantees that the correspondent jffs2_inode_cache
148 Lock wbuf_sem last, after the alloc_sem or and f->sem.
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| D | jffs2_fs_i.h | 27 struct mutex sem; member
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| D | debug.c | 69 mutex_lock(&f->sem); in __jffs2_dbg_fragtree_paranoia_check()
71 mutex_unlock(&f->sem); in __jffs2_dbg_fragtree_paranoia_check()
697 mutex_lock(&f->sem); in __jffs2_dbg_dump_fragtree()
699 mutex_unlock(&f->sem); in __jffs2_dbg_dump_fragtree()
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| /linux-4.19.296/drivers/char/xilinx_hwicap/ |
| D | xilinx_hwicap.c | 365 status = mutex_lock_interruptible(&drvdata->sem); in hwicap_read()
436 mutex_unlock(&drvdata->sem); in hwicap_read()
451 status = mutex_lock_interruptible(&drvdata->sem); in hwicap_write()
525 mutex_unlock(&drvdata->sem); in hwicap_write()
537 status = mutex_lock_interruptible(&drvdata->sem); in hwicap_open()
558 mutex_unlock(&drvdata->sem); in hwicap_open()
570 mutex_lock(&drvdata->sem); in hwicap_release()
589 mutex_unlock(&drvdata->sem); in hwicap_release()
674 mutex_init(&drvdata->sem); in hwicap_setup()
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| D | xilinx_hwicap.h | 60 struct mutex sem; member
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| /linux-4.19.296/include/soc/arc/ |
| D | mcip.h | 67 msg:1, sem:1, ipi:1, slv:1, member
71 slv:1, ipi:1, sem:1, msg:1,
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| /linux-4.19.296/drivers/misc/cxl/ |
| D | flash.c | 27 static struct semaphore sem; variable
402 if (down_interruptible(&sem) != 0) in device_open()
453 up(&sem); in device_open()
497 up(&sem); in device_close()
540 sema_init(&sem, 1); in cxl_guest_add_chardev()
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| /linux-4.19.296/include/uapi/linux/ |
| D | sem.h | 29 struct sem *sem_base; /* ptr to first semaphore in array */
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| /linux-4.19.296/fs/crypto/ |
| D | keyinfo.c | 94 down_read(&key->sem); in find_and_lock_process_key()
121 up_read(&key->sem); in find_and_lock_process_key()
146 up_read(&key->sem); in find_and_derive_key()
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| /linux-4.19.296/lib/ |
| D | digsig.c | 87 down_read(&key->sem); in digsig_verify_rsa()
182 up_read(&key->sem); in digsig_verify_rsa()
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| /linux-4.19.296/fs/ecryptfs/ |
| D | keystore.c | 527 down_write(&(walker->global_auth_tok_key->sem)); in ecryptfs_find_global_auth_tok_for_sig()
540 up_write(&(walker->global_auth_tok_key->sem)); in ecryptfs_find_global_auth_tok_for_sig()
861 up_write(&(auth_tok_key->sem)); in ecryptfs_write_tag_70_packet()
1102 up_write(&(auth_tok_key->sem)); in ecryptfs_parse_tag_70_packet()
1639 down_write(&(*auth_tok_key)->sem); in ecryptfs_keyring_auth_tok_for_sig()
1642 up_write(&(*auth_tok_key)->sem); in ecryptfs_keyring_auth_tok_for_sig()
1915 up_write(&(auth_tok_key->sem)); in ecryptfs_parse_packet_set()
1923 up_write(&(auth_tok_key->sem)); in ecryptfs_parse_packet_set()
1928 up_write(&(auth_tok_key->sem)); in ecryptfs_parse_packet_set()
1990 up_write(&(auth_tok_key->sem)); in pki_encrypt_session_key()
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| /linux-4.19.296/drivers/cpufreq/ |
| D | brcmstb-avs-cpufreq.c | 179 struct semaphore sem; member
207 ret = down_interruptible(&priv->sem); in __issue_avs_command()
288 up(&priv->sem); in __issue_avs_command()
524 sema_init(&priv->sem, 1); in brcm_avs_prepare_init()
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| /linux-4.19.296/drivers/media/dvb-core/ |
| D | dvb_frontend.c | 109 struct semaphore sem; member
286 up(&fepriv->sem); in dvb_frontend_test_event()
288 down(&fepriv->sem); in dvb_frontend_test_event()
688 up(&fepriv->sem); /* is locked when we enter the thread... */ in dvb_frontend_thread()
698 if (!down_interruptible(&fepriv->sem)) in dvb_frontend_thread()
707 if (down_interruptible(&fepriv->sem)) in dvb_frontend_thread()
816 up(&fepriv->sem); in dvb_frontend_thread()
836 sema_init(&fepriv->sem, 1); in dvb_frontend_stop()
885 if (down_interruptible(&fepriv->sem)) in dvb_frontend_start()
900 up(&fepriv->sem); in dvb_frontend_start()
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