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ANDROID: vendor_hooks: Add hooks for oem futex optimization

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If an important task is going to sleep through do_futex(),
find out it's futex-owner by the pid comes from userspace,
and boost the owner by some means to shorten the sleep time.
How to boost? Depends on these hooks:
53e8099784 ("ANDROID: vendor_hooks: Add hooks for scheduler")

Bug: 243110112
Signed-off-by: xieliujie <xieliujie@oppo.com>
Change-Id: I9a315cfb414fd34e0ef7a2cf9d57df50d4dd984f
This commit is contained in:
xieliujie
2022-08-19 16:16:25 +08:00
committed by Todd Kjos
parent 3c2f107ad2
commit 548da5d23d
3 changed files with 47 additions and 0 deletions
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6
drivers/android/vendor_hooks.c
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@@ -106,6 +106,12 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_finished);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_rwsem_list_add);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_futex_plist_add);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_futex_sleep_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_futex);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_futex_wait_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_futex_wait_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_futex_wake_traverse_plist);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_futex_wake_this);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_futex_wake_up_q_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rtmutex_wait_start);