From: Christoph Lameter Date: Wed, 1 Feb 2006 11:05:28 +0000 (-0800) Subject: [PATCH] mm: improve function of sc->may_writepage X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=52a8363eae3872af15880292ff4e06d0fab36986;p=linux-beck.git [PATCH] mm: improve function of sc->may_writepage Make sc->may_writepage control the writeout behavior of shrink_list. Remove the laptop_mode trick from shrink_list and instead set may_writepage in try_to_free_pages properly. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/mm/vmscan.c b/mm/vmscan.c index 0ca6007d655b..a29efb2c06c8 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -492,7 +492,7 @@ static int shrink_list(struct list_head *page_list, struct scan_control *sc) goto keep_locked; if (!may_enter_fs) goto keep_locked; - if (laptop_mode && !sc->may_writepage) + if (!sc->may_writepage) goto keep_locked; /* Page is dirty, try to write it out here */ @@ -1170,7 +1170,7 @@ int try_to_free_pages(struct zone **zones, gfp_t gfp_mask) int i; sc.gfp_mask = gfp_mask; - sc.may_writepage = 0; + sc.may_writepage = !laptop_mode; sc.may_swap = 1; inc_page_state(allocstall); @@ -1273,7 +1273,7 @@ loop_again: total_scanned = 0; total_reclaimed = 0; sc.gfp_mask = GFP_KERNEL; - sc.may_writepage = 0; + sc.may_writepage = !laptop_mode; sc.may_swap = 1; sc.nr_mapped = read_page_state(nr_mapped);