Function report |
Source Code:mm\page-writeback.c |
Create Date:2022-07-28 14:09:17 |
Last Modify:2022-05-23 13:25:58 | Copyright©Brick |
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Name:de_dirtyable_memory - number of dirtyable pages in a node*@pgdat: the node* Return: the node's number of pages potentially available for dirty* page cache. This is the base value for the per-node dirty limits.
Proto:static unsigned long node_dirtyable_memory(struct pglist_data *pgdat)
Type:unsigned long
Parameter:
Type | Parameter | Name |
---|---|---|
struct pglist_data * | pgdat |
279 | nr_pages = 0 |
282 | When z < MAX_NR_ZONES cycle |
283 | zone = node_zones + z |
285 | If Not Returns true if a zone has memory Then Continue |
288 | nr_pages += zone_page_state(zone, NR_FREE_PAGES) |
298 | nr_pages += node_page_state(pgdat, NR_INACTIVE_FILE) |
299 | nr_pages += node_page_state(pgdat, NR_ACTIVE_FILE) |
301 | Return nr_pages |
Name | Describe |
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node_dirty_limit | de_dirty_limit - maximum number of dirty pages allowed in a node*@pgdat: the node* Return: the maximum number of dirty pages allowed in a node, based* on the node's dirtyable memory. |
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