1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #undef TRACE_SYSTEM 3 #define TRACE_SYSTEM rwsem 4 #define TRACE_INCLUDE_PATH trace/hooks 5 #if !defined(_TRACE_HOOK_RWSEM_H) || defined(TRACE_HEADER_MULTI_READ) 6 #define _TRACE_HOOK_RWSEM_H 7 #include <trace/hooks/vendor_hooks.h> 8 /* 9 * Following tracepoints are not exported in tracefs and provide a 10 * mechanism for vendor modules to hook and extend functionality 11 */ 12 struct rw_semaphore; 13 struct rwsem_waiter; 14 DECLARE_HOOK(android_vh_rwsem_init, 15 TP_PROTO(struct rw_semaphore *sem), 16 TP_ARGS(sem)); 17 DECLARE_HOOK(android_vh_rwsem_wake, 18 TP_PROTO(struct rw_semaphore *sem), 19 TP_ARGS(sem)); 20 DECLARE_HOOK(android_vh_rwsem_write_finished, 21 TP_PROTO(struct rw_semaphore *sem), 22 TP_ARGS(sem)); 23 DECLARE_HOOK(android_vh_alter_rwsem_list_add, 24 TP_PROTO(struct rwsem_waiter *waiter, 25 struct rw_semaphore *sem, 26 bool *already_on_list), 27 TP_ARGS(waiter, sem, already_on_list)); 28 DECLARE_HOOK(android_vh_rwsem_downgrade_wake_finish, 29 TP_PROTO(struct rw_semaphore *sem), 30 TP_ARGS(sem)); 31 DECLARE_HOOK(android_vh_rwsem_wake_finish, 32 TP_PROTO(struct rw_semaphore *sem), 33 TP_ARGS(sem)); 34 DECLARE_HOOK(android_vh_rwsem_direct_rsteal, 35 TP_PROTO(struct rw_semaphore *sem, bool *steal), 36 TP_ARGS(sem, steal)); 37 DECLARE_HOOK(android_vh_rwsem_optimistic_rspin, 38 TP_PROTO(struct rw_semaphore *sem, long *adjustment, bool *rspin), 39 TP_ARGS(sem, adjustment, rspin)); 40 DECLARE_HOOK(android_vh_record_rwsem_reader_owned, 41 TP_PROTO(struct rw_semaphore *sem, 42 struct list_head *wlist), 43 TP_ARGS(sem, wlist)); 44 DECLARE_HOOK(android_vh_clear_rwsem_reader_owned, 45 TP_PROTO(struct rw_semaphore *sem), 46 TP_ARGS(sem)); 47 DECLARE_HOOK(android_vh_record_rwsem_writer_owned, 48 TP_PROTO(struct rw_semaphore *sem), 49 TP_ARGS(sem)); 50 DECLARE_HOOK(android_vh_clear_rwsem_writer_owned, 51 TP_PROTO(struct rw_semaphore *sem), 52 TP_ARGS(sem)); 53 DECLARE_HOOK(android_vh_rwsem_read_trylock_failed, 54 TP_PROTO(struct rw_semaphore *sem, long *cntp, int *ret), 55 TP_ARGS(sem, cntp, ret)); 56 #endif /* _TRACE_HOOK_RWSEM_H */ 57 /* This part must be outside protection */ 58 #include <trace/define_trace.h> 59