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msm-4.14/include/linux/simple_lmk.h

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simple_lmk: Introduce Simple Low Memory Killer for Android This is a complete low memory killer solution for Android that is small and simple. Processes are killed according to the priorities that Android gives them, so that the least important processes are always killed first. Processes are killed until memory deficits are satisfied, as observed from kswapd struggling to free up pages. Simple LMK stops killing processes when kswapd finally goes back to sleep. The only tunables are the desired amount of memory to be freed per reclaim event and desired frequency of reclaim events. Simple LMK tries to free at least the desired amount of memory per reclaim and waits until all of its victims' memory is freed before proceeding to kill more processes. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2019-06-24 07:22:55 -07:00
/* SPDX-License-Identifier: GPL-2.0 */
/*
simple_lmk: Update copyright to 2020 Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2020-02-06 20:57:53 -08:00
* Copyright (C) 2019-2020 Sultan Alsawaf <sultan@kerneltoast.com>.
simple_lmk: Introduce Simple Low Memory Killer for Android This is a complete low memory killer solution for Android that is small and simple. Processes are killed according to the priorities that Android gives them, so that the least important processes are always killed first. Processes are killed until memory deficits are satisfied, as observed from kswapd struggling to free up pages. Simple LMK stops killing processes when kswapd finally goes back to sleep. The only tunables are the desired amount of memory to be freed per reclaim event and desired frequency of reclaim events. Simple LMK tries to free at least the desired amount of memory per reclaim and waits until all of its victims' memory is freed before proceeding to kill more processes. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2019-06-24 07:22:55 -07:00
*/
#ifndef _SIMPLE_LMK_H_
#define _SIMPLE_LMK_H_
struct mm_struct;
#ifdef CONFIG_ANDROID_SIMPLE_LMK
void simple_lmk_mm_freed(struct mm_struct *mm);
simple_lmk: expose simple_lmk_trigger() vmpressure won't be the only external caller. Signed-off-by: Juhyung Park <qkrwngud825@gmail.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2022-05-24 21:54:28 +09:00
void simple_lmk_trigger(void);
simple_lmk: Introduce Simple Low Memory Killer for Android This is a complete low memory killer solution for Android that is small and simple. Processes are killed according to the priorities that Android gives them, so that the least important processes are always killed first. Processes are killed until memory deficits are satisfied, as observed from kswapd struggling to free up pages. Simple LMK stops killing processes when kswapd finally goes back to sleep. The only tunables are the desired amount of memory to be freed per reclaim event and desired frequency of reclaim events. Simple LMK tries to free at least the desired amount of memory per reclaim and waits until all of its victims' memory is freed before proceeding to kill more processes. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2019-06-24 07:22:55 -07:00
#else
static inline void simple_lmk_mm_freed(struct mm_struct *mm)
{
}
simple_lmk: expose simple_lmk_trigger() vmpressure won't be the only external caller. Signed-off-by: Juhyung Park <qkrwngud825@gmail.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2022-05-24 21:54:28 +09:00
static inline void simple_lmk_trigger(void)
{
}
simple_lmk: Introduce Simple Low Memory Killer for Android This is a complete low memory killer solution for Android that is small and simple. Processes are killed according to the priorities that Android gives them, so that the least important processes are always killed first. Processes are killed until memory deficits are satisfied, as observed from kswapd struggling to free up pages. Simple LMK stops killing processes when kswapd finally goes back to sleep. The only tunables are the desired amount of memory to be freed per reclaim event and desired frequency of reclaim events. Simple LMK tries to free at least the desired amount of memory per reclaim and waits until all of its victims' memory is freed before proceeding to kill more processes. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>
2019-06-24 07:22:55 -07:00
#endif
#endif /* _SIMPLE_LMK_H_ */
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