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From"Rafael J. Wysocki" <>
Subject[PATCH][Fix] swsusp: take lowmem reserves into account
DateThu, 13 Apr 2006 21:15:49 +0200
swsusp allocates memory from the normal zone, so it cannot use lowmem reserve
pages from the lower zones. Therefore it should not count these pages as
available to it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
kernel/power/swsusp.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6.17-rc1-mm2/kernel/power/swsusp.c
===================================================================
--- linux-2.6.17-rc1-mm2.orig/kernel/power/swsusp.c 2006-04-12 07:09:20.000000000 +0200
+++ linux-2.6.17-rc1-mm2/kernel/power/swsusp.c 2006-04-13 20:38:23.000000000 +0200
@@ -192,8 +192,10 @@ int swsusp_shrink_memory(void)
PAGES_FOR_IO;
tmp = size;
for_each_zone (zone)
- if (!is_highmem(zone))
+ if (!is_highmem(zone) && populated_zone(zone)) {
tmp -= zone->free_pages;
+ tmp += zone->lowmem_reserve[ZONE_NORMAL];
+ }
if (tmp > 0) {
tmp = shrink_all_memory(SHRINK_BITE);
if (!tmp)
-
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