a896c5cfb3
* slmk/linux-4.14: simple_lmk: Remove unnecessary clean-up when timeout is reached simple_lmk: Hold an RCU read lock instead of the tasklist read lock mm: Don't stop kswapd on a per-node basis when there are no waiters simple_lmk: Consider all positive adjs when finding victims mm: vmpressure: Ignore allocation orders above PAGE_ALLOC_COSTLY_ORDER mm: Don't warn on page allocation failures for OOM-killed processes mm: Adjust tsk_is_oom_victim() for Simple LMK mm: vmpressure: Don't cache the window size mm: vmpressure: Interpret zero scanned pages as 100% pressure mm: vmpressure: Don't exclude any allocation types simple_lmk: Update adj targeting for Android 10 simple_lmk: Use vmpressure notifier to trigger kills mm: vmpressure: make vmpressure window variable mm: vmpressure: account allocstalls only on higher pressures mm: vmpressure: scale pressure based on reclaim context mm: vmpressure: allow in-kernel clients to subscribe for events mm, vmpressure: int cast vmpressure level/model for -1 comparison mm: Stop kswapd early when nothing's waiting for it to free pages simple_lmk: Include swap memory usage in the size of victims simple_lmk: Relax memory barriers and clean up some styling simple_lmk: Place victims onto SCHED_RR simple_lmk: Add a timeout to stop waiting for victims to die simple_lmk: Ignore tasks that won't free memory simple_lmk: Simplify tricks used to speed up the death process simple_lmk: Report mm as freed as soon as exit_mmap() finishes simple_lmk: Mark victim thread group with TIF_MEMDIE simple_lmk: Disable OOM killer when Simple LMK is enabled simple_lmk: Print a message when there are no processes to kill simple_lmk: Remove compat cruft not specific to 4.14 simple_lmk: Update copyright to 2020 simple_lmk: Don't queue up new reclaim requests during reclaim simple_lmk: Increase default minfree value simple_lmk: Clean up some code style nitpicks simple_lmk: Make reclaim deterministic simple_lmk: Fix broken multicopy atomicity for victims_to_kill simple_lmk: Use proper atomic_* operations where needed simple_lmk: Remove kthread_should_stop() exit condition simple_lmk: Fix pages_found calculation simple_lmk: Introduce Simple Low Memory Killer for Android Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com> Conflicts: kernel/exit.c kernel/fork.c mm/Makefile mm/vmpressure.c mm/vmscan.c
93 lines
3.0 KiB
Plaintext
93 lines
3.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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menu "Android"
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config ANDROID
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bool "Android Drivers"
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---help---
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Enable support for various drivers needed on the Android platform
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if ANDROID
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config ANDROID_BINDER_IPC
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bool "Android Binder IPC Driver"
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depends on MMU && !M68K
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default n
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---help---
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Binder is used in Android for both communication between processes,
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and remote method invocation.
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This means one Android process can call a method/routine in another
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Android process, using Binder to identify, invoke and pass arguments
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between said processes.
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config ANDROID_BINDERFS
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bool "Android Binderfs filesystem"
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depends on ANDROID_BINDER_IPC
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default n
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---help---
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Binderfs is a pseudo-filesystem for the Android Binder IPC driver
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which can be mounted per-ipc namespace allowing to run multiple
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instances of Android.
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Each binderfs mount initially only contains a binder-control device.
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It can be used to dynamically allocate new binder IPC devices via
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ioctls.
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config ANDROID_BINDER_DEVICES
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string "Android Binder devices"
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depends on ANDROID_BINDER_IPC
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default "binder,hwbinder,vndbinder"
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---help---
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Default value for the binder.devices parameter.
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The binder.devices parameter is a comma-separated list of strings
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that specifies the names of the binder device nodes that will be
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created. Each binder device has its own context manager, and is
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therefore logically separated from the other devices.
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config ANDROID_BINDER_IPC_SELFTEST
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bool "Android Binder IPC Driver Selftest"
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depends on ANDROID_BINDER_IPC
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---help---
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This feature allows binder selftest to run.
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Binder selftest checks the allocation and free of binder buffers
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exhaustively with combinations of various buffer sizes and
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alignments.
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config ANDROID_SIMPLE_LMK
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bool "Simple Android Low Memory Killer"
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depends on !ANDROID_LOW_MEMORY_KILLER && !MEMCG
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---help---
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This is a complete low memory killer solution for Android that is
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small and simple. Processes are killed according to the priorities
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that Android gives them, so that the least important processes are
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always killed first. Processes are killed until memory deficits are
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satisfied, as observed from kswapd struggling to free up pages. Simple
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LMK stops killing processes when kswapd finally goes back to sleep.
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if ANDROID_SIMPLE_LMK
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config ANDROID_SIMPLE_LMK_MINFREE
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int "Minimum MiB of memory to free per reclaim"
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range 8 512
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default 128
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help
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Simple LMK will try to free at least this much memory per reclaim.
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config ANDROID_SIMPLE_LMK_TIMEOUT_MSEC
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int "Reclaim timeout in milliseconds"
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range 50 1000
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default 200
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help
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Simple LMK tries to wait until all of the victims it kills have their
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memory freed; however, sometimes victims can take a while to die,
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which can block Simple LMK from killing more processes in time when
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needed. After the specified timeout elapses, Simple LMK will stop
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waiting and make itself available to kill more processes.
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endif
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endif # if ANDROID
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endmenu
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