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optimize moto swap to not shrink in zram low state

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Change-Id: I4d2173960482aced81045cb8c6e226bd96843502
Signed-off-by: huangzq2 <huangzq2@motorola.com>
Reviewed-on: https://gerrit.mot.com/2775005
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
huangzq2 2023-10-24 10:42:47 +08:00 • committed by Zhangqing Huang
commit e1eb34b1fa
1 changed files with 6 additions and 6 deletions
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12
drivers/moto_swap/hybridswap/hybridswap_swapd.c
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@ -1267,12 +1267,12 @@ bool zram_watermark_ok(void)
return cur_scale > wm;
}
static inline bool zram_is_full(void)
static inline bool zram_is_low(void)
{
unsigned long nr_used = hybridswap_fetch_zram_used_pages();
unsigned long nr_total = fetch_nr_zram_total();
return nr_used >= nr_total;
return ((nr_total - nr_used) < fetch_free_swap_level_value());
}
bool free_zram_is_ok(void)
@ -1454,7 +1454,7 @@ static inline u64 calc_shrink_scale(pg_data_t *pgdat)
continue;
}
hybp(HYB_INFO, "CHECK MEMCG %s: can_reclaim %luKB nr_anon %luKB zram %luKB eswap %luKB total %luKB reclaimed %lu%%(%lu)\n",
hybp(HYB_DEBUG, "CHECK MEMCG %s: can_reclaim %luKB nr_anon %luKB zram %luKB eswap %luKB total %luKB reclaimed %lu%%(%lu)\n",
hybs->name, (unsigned long)page_to_kb(hybs->can_reclaimed),
(unsigned long)page_to_kb(nr_anon), (unsigned long)page_to_kb(nr_zram),
(unsigned long)page_to_kb(nr_eswap), (unsigned long)page_to_kb(total),
@ -1515,7 +1515,7 @@ static unsigned long swapd_shrink_anon(pg_data_t *pgdat,
memcg_to_reclaim, GFP_KERNEL, true);
reclaim_memcg_cnt++;
hybs->can_reclaimed -= memcg_nr_reclaimed;
hybp(HYB_INFO, "SHRINK MEMCG %s: to_reclaim %lu reclaimed %lu\n", hybs->name,
hybp(HYB_DEBUG, "SHRINK MEMCG %s: to_reclaim %lu reclaimed %lu\n", hybs->name,
memcg_to_reclaim, memcg_nr_reclaimed);
nr_reclaimed += memcg_nr_reclaimed;
}
@ -1537,7 +1537,7 @@ static unsigned long swapd_shrink_anon(pg_data_t *pgdat,
if (exit)
break;
if (zram_is_full())
if (zram_is_low())
break;
reclaim_cycles--;
}
@ -1560,7 +1560,7 @@ static void swapd_shrink_node(pg_data_t *pgdat)
return;
#endif
if (zram_is_full())
if (zram_is_low())
return;
if (high_buffer_is_suitable())