Function report |
Source Code:mm\vmscan.c |
Create Date:2022-07-28 14:19:44 |
Last Modify:2022-05-23 13:41:30 | Copyright©Brick |
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Name:Returns true if there is an eligible zone balanced for the request order* and classzone_idx
Proto:static bool pgdat_balanced(pg_data_t *pgdat, int order, int classzone_idx)
Type:bool
Parameter:
Type | Parameter | Name |
---|---|---|
pg_data_t * | pgdat | |
int | order | |
int | classzone_idx |
3439 | mark = -1 |
3446 | When i <= classzone_idx cycle |
3447 | zone = node_zones + i |
3452 | mark = high_wmark_pages(zone) |
3453 | If zone_watermark_ok_safe(zone, order, mark, classzone_idx) Then Return true |
3462 | If mark == -1 Then Return true |
3465 | Return false |
Name | Describe |
---|---|
prepare_kswapd_sleep | Prepare kswapd for sleeping. This verifies that there are no processes* waiting in throttle_direct_reclaim() and that watermarks have been met.* Returns true if kswapd is ready to sleep |
balance_pgdat | For kswapd, balance_pgdat() will reclaim pages across a node from zones* that are eligible for use by the caller until at least one zone is* balanced.* Returns the order kswapd finished reclaiming at. |
wakeup_kswapd | A zone is low on free memory or too fragmented for high-order memory |
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