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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2006-09-26 08:32:46 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 17:48:58 +0200 |
| commit | e8eff5ac294e12531c4195e0c15a222d3c9015e5 (patch) | |
| tree | d63a3f26e506c3468e071377fec7aa9944f24764 /include/asm-x86_64/e820.h | |
| parent | [PATCH] swsusp: struct snapshot_handle cleanup (diff) | |
| download | linux-e8eff5ac294e12531c4195e0c15a222d3c9015e5.tar.xz linux-e8eff5ac294e12531c4195e0c15a222d3c9015e5.zip | |
[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 'include/asm-x86_64/e820.h')
| -rw-r--r-- | include/asm-x86_64/e820.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index 670a3388e70a..f65674832318 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h @@ -46,6 +46,7 @@ extern void setup_memory_region(void); extern void contig_e820_setup(void); extern unsigned long e820_end_of_ram(void); extern void e820_reserve_resources(void); +extern void e820_mark_nosave_regions(void); extern void e820_print_map(char *who); extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type); extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type); |