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Revert "lmkd: Add a margin for watermark when swap free is low" 

This reverts commit 95551f816a.

Reason to revert: don't need this change.
Bug: 163134367

Signed-off-by: Martin Liu <liumartin@google.com>
Change-Id: I8b209b054b6caec553bce13cd51f931401c1e42a
This commit is contained in:
Martin Liu 2020-08-21 12:38:58 +08:00
parent 07c9ed14e3
commit cd5f08d8ee
1 changed files with 3 additions and 5 deletions
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8
lmkd.cpp
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@ -2239,11 +2239,9 @@ struct zone_watermarks {
* Returns lowest breached watermark or WMARK_NONE.
*/
static enum zone_watermark get_lowest_watermark(union meminfo *mi,
struct zone_watermarks *watermarks,
long margin)
struct zone_watermarks *watermarks)
{
int64_t nr_free_pages = mi->field.nr_free_pages - mi->field.cma_free;
int64_t high_wmark = (watermarks->high_wmark * margin) / 100;
if (nr_free_pages < watermarks->min_wmark) {
return WMARK_MIN;
@ -2251,7 +2249,7 @@ static enum zone_watermark get_lowest_watermark(union meminfo *mi,
if (nr_free_pages < watermarks->low_wmark) {
return WMARK_LOW;
}
if (nr_free_pages < high_wmark) {
if (nr_free_pages < watermarks->high_wmark) {
return WMARK_HIGH;
}
return WMARK_NONE;
@ -2408,7 +2406,7 @@ static void mp_event_psi(int data, uint32_t events, struct polling_params *poll_
}
/* Find out which watermark is breached if any */
wmark = get_lowest_watermark(&mi, &watermarks, swap_is_low ? 115 : 100);
wmark = get_lowest_watermark(&mi, &watermarks);
/*
* TODO: move this logic into a separate function