df18d99dab
- Add the hook to apply vendor's performance tune for owner
of rwsem.
- Add the hook for the waiter list of rwsem to allow
vendor perform waiting queue enhancement
- ANDROID_VENDOR_DATA added to rw_semaphore
Bug: 161400830
Signed-off-by: JianMin Liu <jian-min.liu@mediatek.com>
Change-Id: I007a5e26f3db2adaeaf4e5ccea414ce7abfa83b8
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM rwsem
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#define TRACE_INCLUDE_PATH trace/hooks
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#if !defined(_TRACE_HOOK_RWSEM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HOOK_RWSEM_H
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#include <linux/tracepoint.h>
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#include <trace/hooks/vendor_hooks.h>
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/*
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* Following tracepoints are not exported in tracefs and provide a
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* mechanism for vendor modules to hook and extend functionality
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*/
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#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
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struct rw_semaphore;
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struct rwsem_waiter;
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DECLARE_HOOK(android_vh_rwsem_init,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_wake,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_write_finished,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_alter_rwsem_list_add,
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TP_PROTO(struct rwsem_waiter *waiter,
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struct rw_semaphore *sem,
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bool *already_on_list),
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TP_ARGS(waiter, sem, already_on_list));
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#else
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#define trace_android_vh_rwsem_init(sem)
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#define trace_android_vh_rwsem_wake(sem)
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#define trace_android_vh_rwsem_write_finished(sem)
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#define trace_android_vh_alter_rwsem_list_add(waiter, sem, already_on_list)
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#endif
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#endif /* _TRACE_HOOK_RWSEM_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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