Code

Implemented : Simple LMK#15

Code

Merged

ravindu644 merged 69 commits intoLPoSravindu644/android_kernel_beyondx_lpos:LPoSfrom simple_lmkravindu644/android_kernel_beyondx_lpos:simple_lmkCopy head branch name to clipboardMar 16, 2024

+908-193

Commits

Commits on Mar 16, 2024

• simple_lmk: Introduce Simple Low Memory Killer for Android

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• simple_lmk: Fix pages_found calculation

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• simple_lmk: Remove kthread_should_stop() exit condition

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• simple_lmk: Use proper atomic_* operations where needed

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• simple_lmk: Fix broken multicopy atomicity for victims_to_kill

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• simple_lmk: Make reclaim deterministic

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• simple_lmk: Clean up some code style nitpicks

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• simple_lmk: Increase default minfree value

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• simple_lmk: Don't queue up new reclaim requests during reclaim

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• simple_lmk: Update copyright to 2020

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• simple_lmk: Remove compat cruft not specific to 4.14

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• simple_lmk: Print a message when there are no processes to kill

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• simple_lmk: Disable OOM killer when Simple LMK is enabled

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• simple_lmk: Mark victim thread group with TIF_MEMDIE

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• simple_lmk: Report mm as freed as soon as exit_mmap() finishes

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• simple_lmk: Simplify tricks used to speed up the death process

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• simple_lmk: Ignore tasks that won't free memory

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• simple_lmk: Add a timeout to stop waiting for victims to die

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• simple_lmk: Place victims onto SCHED_RR

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• simple_lmk: Relax memory barriers and clean up some styling

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• simple_lmk: Include swap memory usage in the size of victims

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• mm: Stop kswapd early when nothing's waiting for it to free pages

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• mm, vmpressure: int cast vmpressure level/model for -1 comparison

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• mm: vmpressure: allow in-kernel clients to subscribe for events

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• mm: vmpressure: scale pressure based on reclaim context

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• mm: vmpressure: account allocstalls only on higher pressures

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• mm: vmpressure: make vmpressure window variable

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• simple_lmk: Use vmpressure notifier to trigger kills

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• simple_lmk: Update adj targeting for Android 10

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• mm: vmpressure: Don't exclude any allocation types

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• mm: vmpressure: Interpret zero scanned pages as 100% pressure

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• mm: vmpressure: Don't cache the window size

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• mm: Adjust tsk_is_oom_victim() for Simple LMK

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• mm: Don't warn on page allocation failures for OOM-killed processes

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• mm: vmpressure: Ignore allocation orders above PAGE_ALLOC_COSTLY_ORDER

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• simple_lmk: Consider all positive adjs when finding victims

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• mm: Don't stop kswapd on a per-node basis when there are no waiters

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• simple_lmk: Hold an RCU read lock instead of the tasklist read lock

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• simple_lmk: Remove unnecessary clean-up when timeout is reached

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• VFS: use synchronize_rcu_expedited() in namespace_unlock()

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• simple_lmk: Print a message when the timeout is reached

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• simple_lmk: Add !PSI dependency

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• simple_lmk: Update Kconfig description for VM pressure change

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• mm: vmpressure: Don't export tunables to userspace

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• simple_lmk: Don't block in simple_lmk_mm_freed() on mm_free_lock

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• simple_lmk: Use MIN_FREE_PAGES wherever pages_needed is used

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• simple_lmk: Skip victim reduction when all victims need to be killed

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• simple_lmk: Pass a custom swap function to sort()

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• simple_lmk: Cacheline-align the victims array and mm_free_lock on SMP

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• simple_lmk: Optimize victim finder to eliminate hard-coded adj ranges

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• mm: vmpressure: Ignore costly-order allocations for direct reclaim too

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• mm: vmpressure: Fix a race that would erroneously clear accumulated data

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• mm: vmpressure: Fix rampant inaccuracies caused by stale data usage

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• buffer: have alloc_page_buffers() use __GFP_NOFAIL

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• buffer: grow_dev_page() should use __GFP_NOFAIL for all cases

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• buffer: eliminate the need to call free_more_memory() in __getblk_slow()

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• mm: Increment kswapd_waiters for throttled direct reclaimers

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• simple_lmk: Be extra paranoid if tasks can have no pages

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• simple_lmk: Make the reclaim thread freezable

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• simple_lmk: Thaw victims upon killing them

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• simple_lmk: Fix victim scheduling priority elevation

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• simple_lmk: Ratelimit the 'no processes available to kill' message

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• simple_lmk: Reduce unnecessary wake ups

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• simple_lmk: Reap anonymous memory from victims

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• mm: Always indicate OOM kill progress when Simple LMK is enabled

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• Enabled : Simple LMK

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• mm: vmpressure: fix build

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• Fixed : build error(2)

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• Fixed : Build warn

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