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authorChristoph Lameter <clameter@engr.sgi.com>2006-02-01 03:05:28 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-01 08:53:15 -0800
commit52a8363eae3872af15880292ff4e06d0fab36986 (patch)
tree9ac9d0f00cc2e35e5d95c7be77874477e25847b4
parentce2ea89ba101d976907128441ba3aca72a8804b9 (diff)
downloadop-kernel-dev-52a8363eae3872af15880292ff4e06d0fab36986.zip
op-kernel-dev-52a8363eae3872af15880292ff4e06d0fab36986.tar.gz
[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 <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--mm/vmscan.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 0ca6007..a29efb2 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);
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