return nr_pages;
}
-#ifdef CONFIG_HIGHMEM
-atomic_t highmem_file_pages;
-#endif
static unsigned long highmem_dirtyable_memory(unsigned long total)
{
int node;
unsigned long x = 0;
int i;
- unsigned long dirtyable = atomic_read(&highmem_file_pages);
for_each_node_state(node, N_HIGH_MEMORY) {
for (i = ZONE_NORMAL + 1; i < MAX_NR_ZONES; i++) {
struct zone *z;
+ unsigned long nr_pages;
if (!is_highmem_idx(i))
continue;
z = &NODE_DATA(node)->node_zones[i];
- dirtyable += zone_page_state(z, NR_FREE_PAGES);
+ if (!populated_zone(z))
+ continue;
+ nr_pages = zone_page_state(z, NR_FREE_PAGES);
/* watch for underflows */
- dirtyable -= min(dirtyable, high_wmark_pages(z));
-
- x += dirtyable;
+ nr_pages -= min(nr_pages, high_wmark_pages(z));
+ nr_pages += zone_page_state(z, NR_ZONE_INACTIVE_FILE);
+ nr_pages += zone_page_state(z, NR_ZONE_ACTIVE_FILE);
+ x += nr_pages;
}
}
mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_DIRTY);
__inc_node_page_state(page, NR_FILE_DIRTY);
+ __inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
__inc_node_page_state(page, NR_DIRTIED);
__inc_wb_stat(wb, WB_RECLAIMABLE);
__inc_wb_stat(wb, WB_DIRTIED);
if (mapping_cap_account_dirty(mapping)) {
mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_DIRTY);
dec_node_page_state(page, NR_FILE_DIRTY);
+ dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
dec_wb_stat(wb, WB_RECLAIMABLE);
task_io_account_cancelled_write(PAGE_SIZE);
}
if (TestClearPageDirty(page)) {
mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_DIRTY);
dec_node_page_state(page, NR_FILE_DIRTY);
+ dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
dec_wb_stat(wb, WB_RECLAIMABLE);
ret = 1;
}
if (ret) {
mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_WRITEBACK);
dec_node_page_state(page, NR_WRITEBACK);
+ dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
inc_node_page_state(page, NR_WRITTEN);
}
unlock_page_memcg(page);
if (!ret) {
mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_WRITEBACK);
inc_node_page_state(page, NR_WRITEBACK);
+ inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
}
unlock_page_memcg(page);
return ret;