Call domain_dirty_avail in balance_dirty_pages to remove repeated code.
This is also a preparation to factor out repeated code calculating
dirty limits in balance_dirty_pages.
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index a1d48e8387ed..c41db87f4e98 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1747,9 +1747,8 @@ static int balance_dirty_pages(struct bdi_writeback *wb,
unsigned long m_bg_thresh = 0;
nr_dirty = global_node_page_state(NR_FILE_DIRTY);
- gdtc->avail = global_dirtyable_memory();
- gdtc->dirty = nr_dirty + global_node_page_state(NR_WRITEBACK);
+ domain_dirty_avail(gdtc, false);
domain_dirty_limits(gdtc);
if (unlikely(strictlimit)) {
@@ -1765,17 +1764,11 @@ static int balance_dirty_pages(struct bdi_writeback *wb,
}
if (mdtc) {
- unsigned long filepages, headroom, writeback;
-
/*
* If @wb belongs to !root memcg, repeat the same
* basic calculations for the memcg domain.
*/
- mem_cgroup_wb_stats(wb, &filepages, &headroom,
- &mdtc->dirty, &writeback);
- mdtc->dirty += writeback;
- mdtc_calc_avail(mdtc, filepages, headroom);
-
+ domain_dirty_avail(mdtc, false);
domain_dirty_limits(mdtc);
if (unlikely(strictlimit)) {
--
2.30.0
