vmscan: add newly swapped in pages to the inactive list

Swapin_readahead can read in a lot of data that the processes in memory never need. Adding swap cache pages to the inactive list prevents them from putting too much pressure on the working set. This has the potential to help the programs that are already in memory, but it could also be a disadvantage to processes that are trying to get swapped in. Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

vmscan: add newly swapped in pages to the inactive list
Swapin_readahead can read in a lot of data that the processes in memory never need. Adding swap cache pages to the inactive list prevents them from putting too much pressure on the working set. This has the potential to help the programs that are already in memory, but it could also be a disadvantage to processes that are trying to get swapped in. Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rik van Riel · Linus Torvalds
1 parent 7e9cd48420
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
mm/swap_state.c
@@ -310,7 +310,7 @@
 			/*
 			 * Initiate read into locked page and return.
 			 */
-			lru_cache_add_active_anon(new_page);
+			lru_cache_add_anon(new_page);
 			swap_readpage(NULL, new_page);
 			return new_page;
 		}
...	...	@@ -310,7 +310,7 @@
310	310	/*
311	311	* Initiate read into locked page and return.
312	312	*/
313		- lru_cache_add_active_anon(new_page);
	313	+ lru_cache_add_anon(new_page);
314	314	swap_readpage(NULL, new_page);
315	315	return new_page;
316	316	}