Commit aa3f18b3 authored Feb 01, 2006 by Christoph Lameter Committed by Linus Torvalds Feb 01, 2006

[PATCH] zone_reclaim: do not unmap file backed pages



zone_reclaim should leave that to the real swapper.  We are only interested
in evicting unmapped pages.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 4e6a510a

mm/vmscan.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -477,6 +477,12 @@ static int shrink_list(struct list_head page_list, struct scan_control sc)
		* processes. Try to unmap it here.
		*/
		if (page_mapped(page) && mapping) {
		/*
		* No unmapping if we do not swap
		*/
		if (!sc->may_swap)
		goto keep_locked;

		switch (try_to_unmap(page)) {
		case SWAP_FAIL:
		goto activate_locked;