summaryrefslogtreecommitdiffstats
path: root/mm/page-writeback.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/page-writeback.c')
-rw-r--r--mm/page-writeback.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 3c02aa603f5a..0bca2376bd42 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -299,6 +299,9 @@ static unsigned long node_dirtyable_memory(struct pglist_data *pgdat)
return nr_pages;
}
+#ifdef CONFIG_HIGHMEM
+atomic_t highmem_file_pages;
+#endif
static unsigned long highmem_dirtyable_memory(unsigned long total)
{
@@ -306,18 +309,17 @@ 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 dirtyable;
if (!is_highmem_idx(i))
continue;
z = &NODE_DATA(node)->node_zones[i];
- dirtyable = zone_page_state(z, NR_FREE_PAGES) +
- zone_page_state(z, NR_ZONE_LRU_FILE);
+ dirtyable += zone_page_state(z, NR_FREE_PAGES);
/* watch for underflows */
dirtyable -= min(dirtyable, high_wmark_pages(z));
@@ -2460,7 +2462,6 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
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);
@@ -2482,7 +2483,6 @@ void account_page_cleaned(struct page *page, struct address_space *mapping,
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);
}
@@ -2739,7 +2739,6 @@ int clear_page_dirty_for_io(struct page *page)
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;
}
@@ -2786,7 +2785,6 @@ int test_clear_page_writeback(struct page *page)
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);
@@ -2841,7 +2839,6 @@ int __test_set_page_writeback(struct page *page, bool keep_write)
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;