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authorRafael J. Wysocki <rjw@sisk.pl>2006-09-26 02:32:46 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 11:48:58 -0400
commite8eff5ac294e12531c4195e0c15a222d3c9015e5 (patch)
treed63a3f26e506c3468e071377fec7aa9944f24764 /arch/x86_64/kernel/setup.c
parentfb13a28b0f5ada60861868c4fa48a12bd0cb8dea (diff)
[PATCH] Make swsusp avoid memory holes and reserved memory regions on x86_64
On x86_64 machines with more than 2 GB of RAM there are large memory gaps (with no corresponding kernel virtual addresses) and reserved memory regions between areas of usable physical RAM. Moreover, if CONFIG_FLATMEM is set, they appear within the normal zone. swsusp should not try to save them, so the corresponding page structs have to be marked as 'nosave'. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Mel Gorman <mel@csn.ul.ie> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/setup.c')
-rw-r--r--arch/x86_64/kernel/setup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 34afad704824..4b39f0da17f3 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -689,6 +689,7 @@ void __init setup_arch(char **cmdline_p)
689 */ 689 */
690 probe_roms(); 690 probe_roms();
691 e820_reserve_resources(); 691 e820_reserve_resources();
692 e820_mark_nosave_regions();
692 693
693 request_resource(&iomem_resource, &video_ram_resource); 694 request_resource(&iomem_resource, &video_ram_resource);
694 695