* [PATCH][Fix] swsusp: take lowmem reserves into account
@ 2006-04-13 19:15 Rafael J. Wysocki
0 siblings, 0 replies; only message in thread
From: Rafael J. Wysocki @ 2006-04-13 19:15 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML, Pavel Machek
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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2006-04-13 19:15 [PATCH][Fix] swsusp: take lowmem reserves into account Rafael J. Wysocki
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