From 49c3df6aaa6a51071fc135273d1a2515d019099f Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Wed, 2 May 2007 19:27:07 +0200 Subject: [PATCH] x86: Move swsusp __pa() dependent code to arch portion o __pa() should be used only on kernel linearly mapped virtual addresses and not on kernel text and data addresses. o Hibernation code needs to determine the physical address associated with kernel symbol to mark a section boundary which contains pages which don't have to be saved and restored during hibernate/resume operation. o Move this piece of code in arch dependent section. So that architectures which don't have kernel text/data mapped into kernel linearly mapped region can come up with their own ways of determining physical addresses associated with a kernel text. Signed-off-by: Vivek Goyal Signed-off-by: Andi Kleen --- kernel/power/power.h | 5 ++--- kernel/power/snapshot.c | 11 ----------- 2 files changed, 2 insertions(+), 14 deletions(-) (limited to 'kernel/power') diff --git a/kernel/power/power.h b/kernel/power/power.h index eb461b816bf..1c6eef8df4a 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -23,6 +23,8 @@ static inline int pm_suspend_disk(void) } #endif +extern int pfn_is_nosave(unsigned long); + extern struct mutex pm_mutex; #define power_attr(_name) \ @@ -37,9 +39,6 @@ static struct subsys_attribute _name##_attr = { \ extern struct subsystem power_subsys; -/* References to section boundaries */ -extern const void __nosave_begin, __nosave_end; - /* Preferred image size in bytes (default 500 MB) */ extern unsigned long image_size; extern int in_suspend; diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index fc53ad06812..704c25a3ffe 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -650,17 +650,6 @@ static inline void *saveable_highmem_page(unsigned long pfn) { return NULL; } static inline unsigned int count_highmem_pages(void) { return 0; } #endif /* CONFIG_HIGHMEM */ -/** - * pfn_is_nosave - check if given pfn is in the 'nosave' section - */ - -static inline int pfn_is_nosave(unsigned long pfn) -{ - unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; - unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; - return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); -} - /** * saveable - Determine whether a non-highmem page should be included in * the suspend image. -- cgit v1.2.3