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ANDROID: GKI: Add vendor hook to binder transaction

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We want to get binder free space information in the binder
transaction, but this needs to hold the mutex lock. So we add
this restrict hook to do this.

Bug: 205648032
Change-Id: Ie1f377018da686bd62f5ac2d1e5421899741e6d5
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
(cherry picked from commit 2f3f5731de)
This commit is contained in:
Liangliang Li
2021-11-10 18:05:13 +08:00
committed by Todd Kjos
parent d1367b5473
commit cabca1b98e
3 changed files with 7 additions and 0 deletions
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1
drivers/android/binder.c
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@@ -2856,6 +2856,7 @@ static void binder_transaction(struct binder_proc *proc,
if (target_thread) if (target_thread)
e->to_thread = target_thread->pid; e->to_thread = target_thread->pid;
e->to_proc = target_proc->pid; e->to_proc = target_proc->pid;
trace_android_rvh_binder_transaction(target_proc, proc, thread, tr);
/* TODO: reuse incoming transaction for reply */ /* TODO: reuse incoming transaction for reply */
t = kzalloc(sizeof(*t), GFP_KERNEL); t = kzalloc(sizeof(*t), GFP_KERNEL);

1
drivers/android/vendor_hooks.c
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@@ -203,6 +203,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_check_preempt_wakeup_ignore);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_replace_next_task_fair); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_replace_next_task_fair);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_sched_yield); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_sched_yield);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wait_for_work); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wait_for_work);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_binder_transaction);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sync_txn_recvd); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sync_txn_recvd);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_build_sched_domains); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_build_sched_domains);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_update_topology_flags_workfn); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_update_topology_flags_workfn);

5
include/trace/hooks/binder.h
View File

@@ -23,6 +23,7 @@ DECLARE_HOOK(android_vh_binder_restore_priority,
TP_ARGS(t, task)); TP_ARGS(t, task));
struct binder_proc; struct binder_proc;
struct binder_thread; struct binder_thread;
struct binder_transaction_data;
DECLARE_HOOK(android_vh_binder_wakeup_ilocked, DECLARE_HOOK(android_vh_binder_wakeup_ilocked,
TP_PROTO(struct task_struct *task, bool sync, struct binder_proc *proc), TP_PROTO(struct task_struct *task, bool sync, struct binder_proc *proc),
TP_ARGS(task, sync, proc)); TP_ARGS(task, sync, proc));
@@ -32,6 +33,10 @@ DECLARE_HOOK(android_vh_binder_wait_for_work,
DECLARE_HOOK(android_vh_sync_txn_recvd, DECLARE_HOOK(android_vh_sync_txn_recvd,
TP_PROTO(struct task_struct *tsk, struct task_struct *from), TP_PROTO(struct task_struct *tsk, struct task_struct *from),
TP_ARGS(tsk, from)); TP_ARGS(tsk, from));
DECLARE_RESTRICTED_HOOK(android_rvh_binder_transaction,
TP_PROTO(struct binder_proc *target_proc, struct binder_proc *proc,
struct binder_thread *thread, struct binder_transaction_data *tr),
TP_ARGS(target_proc, proc, thread, tr), 1);
#endif /* _TRACE_HOOK_BINDER_H */ #endif /* _TRACE_HOOK_BINDER_H */
/* This part must be outside protection */ /* This part must be outside protection */
#include <trace/define_trace.h> #include <trace/define_trace.h>