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544ae28cf6
android_kernel_samsung_sm8650/kernel
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xieliujie 544ae28cf6 ANDROID: Inherit "user-aware property" across rtmutex. 
Since upstream commit 715f7f9ece ("locking/rtmutex: Squash !RT
tasks to DEFAULT_PRIO"), non-rt tasks do not inherit the
nice-priority values across rt_mutexes. This removes the minor
(and indirect) priority-inheritance that rt-mutexes provided for
CFS tasks.

Though without priority inheritance, time-bounded priority
inversion can occur between CFS tasks of different nice
priorities / cgroup limitations.  The proxy-execution efforts
are a work-in-progress to resolve this upstream, but in the
meantime it is left to vendor hooks to provide a near term
solution to avoid priority inversion between CFS tasks.

In our oem scheduler, if a  CFS thread has an "user-aware
property", we will always pick it even if it's vruntime is
bigger than the smallest one in runqueue. That's why the
trace_android_rvh_replace_next_task_fair vendorhook was added
previously in commit 53e809978443 ("ANDROID: vendor_hooks: Add
hooks for scheduler").

Thus for our oem scheduler, important CFS tasks(like
RenderThread) are marked with the "user-aware property" in their
struct task_struct. If those tasks are blocked on an rtmutex, we
want to allow the "user-aware property" to be inherited to lock
owner, so it will be selected to run immediately to release the
lock.

To support this, we need new hooks to map "user-aware property"
into different rtmutex_waiter prio and update the owner's
"user-aware property" if needed. Thus these additional vendor
hooks are needed.

In the future, once an generalized upstream solution for CFS
priority inheritance is in place, this will no longer be needed.

Bug: 290585456
Change-Id: I6521ed2086b147400a54da6b84a324baf16bc649
Signed-off-by: xieliujie <xieliujie@oppo.com>
2023-07-27 00:04:07 +00:00
..
bpf UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
cgroup ANDROID: Export memcg functions to allow module to add new files 2023-06-23 07:53:18 +00:00
configs Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
debug mm: remove vmacache 2022-09-26 19:46:18 -07:00
dma UPSTREAM: dma-remap: use kvmalloc_array/kvfree for larger dma memory remap 2023-07-13 20:31:00 +00:00
entry entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up 2023-03-30 12:49:13 +02:00
events UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
futex ANDROID: vendor_hooks: Add hooks for futex 2023-05-11 05:22:29 +00:00
gcov gcov: add support for checksum field 2022-12-31 13:33:11 +01:00
irq Merge 6.1.18 into android14-6.1 2023-03-21 08:22:15 +00:00
kcsan UPSTREAM: kcsan: Avoid READ_ONCE() in read_instrumented_memory() 2023-06-05 15:02:47 +00:00
livepatch Livepatching changes for 6.1 2022-10-10 11:36:19 -07:00
locking ANDROID: Inherit "user-aware property" across rtmutex. 2023-07-27 00:04:07 +00:00
module ANDROID: GKI: Move GKI module headers to generated includes 2023-07-24 17:56:59 +00:00
power ANDROID: vendor hooks: Encrypt snapshot for bootloader based hibernation 2023-06-07 14:25:05 +00:00
printk Merge 6.1.18 into android14-6.1 2023-03-21 08:22:15 +00:00
rcu rcu-tasks: Handle queue-shrink/callback-enqueue race condition 2023-03-10 09:33:48 +01:00
sched ANDROID: Inherit "user-aware property" across rtmutex. 2023-07-27 00:04:07 +00:00
time UPSTREAM: posix-cpu-timers: Implement the missing timer_wait_running callback 2023-06-14 16:40:59 +00:00
trace This is the 6.1.25 stable release 2023-04-26 13:13:19 +00:00
.gitignore ANDROID: add gki_module headers to .gitignore file 2022-04-28 06:43:21 +00:00
acct.c acct: fix potential integer overflow in encode_comp_t() 2022-12-31 13:32:58 +01:00
async.c
audit_fsnotify.c audit: fix potential double free on error path from fsnotify_add_inode_mark 2022-08-22 18:50:06 -04:00
audit_tree.c audit: use fsnotify group lock helpers 2022-04-25 14:37:28 +02:00
audit_watch.c audit_init_parent(): constify path 2022-09-01 17:39:30 -04:00
audit.c audit: use time_after to compare time 2022-08-29 19:47:03 -04:00
audit.h audit: remove selinux_audit_rule_update() declaration 2022-09-07 11:30:15 -04:00
auditfilter.c
auditsc.c audit/stable-6.1 PR 20221003 2022-10-04 11:05:43 -07:00
backtracetest.c
bounds.c mm: multi-gen LRU: minimal implementation 2022-09-26 19:46:09 -07:00
capability.c xfs: don't generate selinux audit messages for capability testing 2022-03-09 10:32:06 -08:00
cfi.c cfi: Switch to -fsanitize=kcfi 2022-09-26 10:13:13 -07:00
compat.c sched_getaffinity: don't assume 'cpumask_size()' is fully initialized 2023-04-06 12:10:40 +02:00
configs.c
context_tracking.c context_tracking: Fix noinstr vs KASAN 2023-03-10 09:33:45 +01:00
cpu_pm.c context_tracking: Take IRQ eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
cpu.c cpu/hotplug: Do not bail-out in DYING/STARTING sections 2022-12-31 13:31:59 +01:00
crash_core.c vmcoreinfo: add kallsyms_num_syms symbol 2022-08-28 14:02:44 -07:00
crash_dump.c
cred.c ANDROID: kernel: Add restricted vendor hook in creds 2023-04-18 19:28:00 +00:00
delayacct.c delayacct: support re-entrance detection of thrashing accounting 2022-09-26 19:46:07 -07:00
dma.c
exec_domain.c
exit.c ANDROID: vendor_hooks: Add hooks for memory when debug 2023-05-25 21:06:40 +00:00
extable.c context_tracking: Take NMI eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
fail_function.c kernel/fail_function: fix memory leak with using debugfs_lookup() 2023-03-11 13:55:39 +01:00
fork.c UPSTREAM: mm: separate vma->lock from vm_area_struct 2023-06-07 14:25:02 +00:00
freezer.c ANDROID: freezer: Add vendor hook to freezer for GKI purpose. 2023-05-17 00:25:38 +00:00
gen_kheaders.sh FROMLIST: kheaders: dereferences the source tree 2023-06-23 09:09:00 +00:00
groups.c security: Add LSM hook to setgroups() syscall 2022-07-15 18:21:49 +00:00
hung_task.c ANDROID: hung_task: Add vendor hook for hung task detect 2023-01-30 11:14:35 +08:00
iomem.c
irq_work.c Linux 5.18-rc3 2022-04-18 08:32:59 +02:00
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kallsyms_internal.h kallsyms: move declarations to internal header 2022-07-17 17:31:39 -07:00
kallsyms.c kcfi updates for v6.1-rc1 2022-10-03 17:11:07 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels" 2022-03-31 10:36:55 +02:00
kcov.c UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
kexec_core.c kexec: replace kmap() with kmap_local_page() 2022-09-11 21:55:08 -07:00
kexec_elf.c
kexec_file.c panic, kexec: make __crash_kexec() NMI safe 2022-09-11 21:55:06 -07:00
kexec_internal.h panic, kexec: make __crash_kexec() NMI safe 2022-09-11 21:55:06 -07:00
kexec.c panic, kexec: make __crash_kexec() NMI safe 2022-09-11 21:55:06 -07:00
kheaders.c
kmod.c
kprobes.c kprobes: Fix to handle forcibly unoptimized kprobes on freeing_list 2023-03-10 09:34:27 +01:00
ksysfs.c kexec: turn all kexec_mutex acquisitions into trylocks 2022-09-11 21:55:06 -07:00
kthread.c Merge 493ffd6605 ("Merge tag 'ucount-rlimits-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace") into android-mainline 2022-10-12 09:37:52 +02:00
latencytop.c latencytop: use the last element of latency_record of system 2022-09-11 21:55:12 -07:00
Makefile cfi: Fix CFI failure with KASAN 2022-12-31 13:33:08 +01:00
module_signature.c
notifier.c notifier: Add blocking/atomic_notifier_chain_register_unique_prio() 2022-05-19 19:30:30 +02:00
nsproxy.c Revert "fs/exec: allow to unshare a time namespace on vfork+exec" 2022-09-13 10:38:43 -07:00
padata.c padata: Fix list iterator in padata_do_serial() 2022-12-31 13:32:34 +01:00
panic.c panic: fix the panic_print NMI backtrace setting 2023-03-10 09:34:25 +01:00
params.c
pid_namespace.c rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes() 2023-03-10 09:32:52 +01:00
pid.c Merge 041bc24d86 ("Merge tag 'pci-v6.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci") into android-mainline 2022-10-25 14:52:46 +02:00
profile.c Revert "exit: Remove profile_task_exit & profile_munmap" 2023-03-09 23:13:08 +00:00
ptrace.c freezer,sched: Rewrite core freezer logic 2022-09-07 21:53:50 +02:00
range.c
reboot.c Merge f848b3cda3 ("Merge tag 'pm-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm") into android-mainline 2022-10-19 17:54:04 +02:00
regset.c
relay.c UPSTREAM: relayfs: fix out-of-bounds access in relay_file_read 2023-07-04 08:29:35 +01:00
resource_kunit.c
resource.c dax/kmem: Fix leak of memory-hotplug resources 2023-03-10 09:34:25 +01:00
rseq.c rseq: Use pr_warn_once() when deprecated/unknown ABI flags are encountered 2022-11-14 09:58:32 +01:00
scftorture.c scftorture: Fix distribution of short handler delays 2022-04-11 17:07:29 -07:00
scs.c UPSTREAM: scs: add support for dynamic shadow call stacks 2023-05-25 15:37:14 -07:00
seccomp.c seccomp: Add wait_killable semantic to seccomp user notifier 2022-05-03 14:11:58 -07:00
signal.c ANDROID: vendor_hooks: Add hooks for signal 2023-05-19 19:41:20 +00:00
smp.c bitmap patches for v6.1-rc1 2022-10-10 12:49:34 -07:00
smpboot.c smpboot: use atomic_try_cmpxchg in cpu_wait_death and cpu_report_death 2022-09-11 21:55:10 -07:00
smpboot.h
softirq.c ANDROID: softirq: Export irq_handler_exit tracepoint 2023-01-17 18:16:29 +00:00
stackleak.c stackleak: add on/off stack variants 2022-05-08 01:33:09 -07:00
stacktrace.c Merge ed4643521e ("Merge tag 'arm-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") into android-mainline 2022-04-05 08:12:56 +02:00
static_call_inline.c static_call: Don't make __static_call_return0 static 2022-04-05 09:59:38 +02:00
static_call.c static_call: Don't make __static_call_return0 static 2022-04-05 09:59:38 +02:00
stop_machine.c ANDROID: sched: allow access to critical common code for CPU Pause 2022-09-21 00:09:57 +00:00
sys_ni.c kernel/sys_ni: add compat entry for fadvise64_64 2022-08-20 15:17:45 -07:00
sys.c Merge b1644a0031 ("drm/rockchip: vop2: Use regcache_sync() to fix suspend/resume") into android14-6.1 2023-05-16 14:19:59 +00:00
sysctl-test.c kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred} 2022-09-08 16:56:45 -07:00
sysctl.c proc: proc_skip_spaces() shouldn't think it is working on C strings 2022-12-05 12:09:06 -08:00
task_work.c task_work: use try_cmpxchg in task_work_add, task_work_cancel_match and task_work_run 2022-09-11 21:55:10 -07:00
taskstats.c genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
torture.c torture: Fix hang during kthread shutdown phase 2023-03-10 09:34:07 +01:00
tracepoint.c Merge d4013bc4d4 ("Merge tag 'bitmap-6.1-rc1' of https://github.com/norov/linux") into android-mainline 2022-10-19 13:22:10 +02:00
tsacct.c taskstats: version 12 with thread group and exe info 2022-04-29 14:38:03 -07:00
ucount.c ucounts: Split rlimit and ucount values and max values 2022-05-18 18:24:57 -05:00
uid16.c
uid16.h
umh.c freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL 2023-02-22 12:59:50 +01:00
up.c
user_namespace.c ucounts: Split rlimit and ucount values and max values 2022-10-09 16:24:05 -07:00
user-return-notifier.c
user.c ANDROID: export find_user() & free_uid()for GKI purpose. 2023-05-11 05:22:29 +00:00
usermode_driver.c blob_to_mnt(): kern_unmount() is needed to undo kern_mount() 2022-05-19 23:25:47 -04:00
utsname_sysctl.c kernel/utsname_sysctl.c: Fix hostname polling 2022-10-23 12:01:01 -07:00
utsname.c
watch_queue.c watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths 2023-03-17 08:50:30 +01:00
watchdog_hld.c Revert "printk: add functions to prefer direct printing" 2022-06-23 18:41:40 +02:00
watchdog.c ANDROID: softlockup: add vendor hook for a softlockup task 2023-03-13 20:34:25 +00:00
workqueue_internal.h
workqueue.c ANDROID: workqueue: export symbol of the function wq_worker_comm() 2023-05-15 23:43:01 +00:00