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platform_kernel-5.15
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ANDROID: GKI: Add vendor hook to binder transaction 

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 2f3f5731de0536a6a1048ae01e129cebec48e664)
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
View File

@ -2856,6 +2856,7 @@ static void binder_transaction(struct binder_proc *proc,
if (target_thread)
e->to_thread = target_thread->pid;
e->to_proc = target_proc->pid;
trace_android_rvh_binder_transaction(target_proc, proc, thread, tr);
/* TODO: reuse incoming transaction for reply */
t = kzalloc(sizeof(*t), GFP_KERNEL);

1
drivers/android/vendor_hooks.c
View File

@ -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_do_sched_yield);
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_build_sched_domains);
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));
struct binder_proc;
struct binder_thread;
struct binder_transaction_data;
DECLARE_HOOK(android_vh_binder_wakeup_ilocked,
TP_PROTO(struct task_struct *task, bool sync, struct binder_proc *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,
TP_PROTO(struct task_struct *tsk, struct task_struct *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 */
/* This part must be outside protection */
#include <trace/define_trace.h>