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Commit 92902fc9 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "mm: vmscan: support equal reclaim for anon and file pages"

parents 52fabc34 1839defd

mm/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -616,6 +616,15 @@ config MAX_STACK_SIZE_MB 


	  A sane initial value is 80 MB.



config BALANCE_ANON_FILE_RECLAIM

	bool "During reclaim treat anon and file backed pages equally"

	depends on SWAP

	help

	  When performing memory reclaim treat anonymous and file backed pages

	  equally.

	  Swapping anonymous pages out to memory can be efficient enough to justify

	  treating anonymous and file backed pages equally.



config DEFERRED_STRUCT_PAGE_INIT

	bool "Defer initialisation of struct pages to kthreads"

	depends on SPARSEMEM

mm/vmscan.c

+2 −1
Original line number Diff line number Diff line
@@ -2397,7 +2397,8 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, 
	 * lruvec even if it has plenty of old anonymous pages unless the

	 * system is under heavy pressure.

	 */

	if (!inactive_list_is_low(lruvec, true, sc, false) &&

	if (!IS_ENABLED(CONFIG_BALANCE_ANON_FILE_RECLAIM) &&

	    !inactive_list_is_low(lruvec, true, sc, false) &&

	    lruvec_lru_size(lruvec, LRU_INACTIVE_FILE, sc->reclaim_idx) >> sc->priority) {

		scan_balance = SCAN_FILE;

		goto out;