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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-05 17:55:20 -0400 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-05 17:55:20 -0400 |
commit | ea62ccd00fd0b6720b033adfc9984f31130ce195 (patch) | |
tree | 9837b797b2466fffcb0af96c388b06eae9c3df18 /kernel/power | |
parent | 886a0768affe9a32f18c45f8e1393bca9ece5392 (diff) | |
parent | 35060b6a9a4e1c89bc6fbea61090e302dbc61847 (diff) |
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits)
[PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall
[PATCH] i386: type may be unused
[PATCH] i386: Some additional chipset register values validation.
[PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split.
[PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff
[PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu
[PATCH] i386: white space fixes in i387.h
[PATCH] i386: Drop noisy e820 debugging printks
[PATCH] x86-64: Fix allnoconfig error in genapic_flat.c
[PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems
[PATCH] x86-64: Share identical video.S between i386 and x86-64
[PATCH] x86-64: Remove CONFIG_REORDER
[PATCH] x86-64: Print type and size correctly for unknown compat ioctls
[PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0)
[PATCH] i386: Little cleanups in smpboot.c
[PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning
[PATCH] x86: Use RDTSCP for synchronous get_cycles if possible
[PATCH] i386: Add X86_FEATURE_RDTSCP
[PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386
[PATCH] i386: Implement alternative_io for i386
...
Fix up trivial conflict in include/linux/highmem.h manually.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/power')
-rw-r--r-- | kernel/power/power.h | 5 | ||||
-rw-r--r-- | kernel/power/snapshot.c | 11 | ||||
-rw-r--r-- | kernel/power/swap.c | 42 |
3 files changed, 29 insertions, 29 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index 5f842c3efc4b..33bd94ceba32 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h | |||
@@ -23,6 +23,8 @@ static inline int pm_suspend_disk(void) | |||
23 | } | 23 | } |
24 | #endif | 24 | #endif |
25 | 25 | ||
26 | extern int pfn_is_nosave(unsigned long); | ||
27 | |||
26 | extern struct mutex pm_mutex; | 28 | extern struct mutex pm_mutex; |
27 | 29 | ||
28 | #define power_attr(_name) \ | 30 | #define power_attr(_name) \ |
@@ -37,9 +39,6 @@ static struct subsys_attribute _name##_attr = { \ | |||
37 | 39 | ||
38 | extern struct kset power_subsys; | 40 | extern struct kset power_subsys; |
39 | 41 | ||
40 | /* References to section boundaries */ | ||
41 | extern const void __nosave_begin, __nosave_end; | ||
42 | |||
43 | /* Preferred image size in bytes (default 500 MB) */ | 42 | /* Preferred image size in bytes (default 500 MB) */ |
44 | extern unsigned long image_size; | 43 | extern unsigned long image_size; |
45 | extern int in_suspend; | 44 | extern int in_suspend; |
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index fc53ad068128..704c25a3ffec 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c | |||
@@ -651,17 +651,6 @@ static inline unsigned int count_highmem_pages(void) { return 0; } | |||
651 | #endif /* CONFIG_HIGHMEM */ | 651 | #endif /* CONFIG_HIGHMEM */ |
652 | 652 | ||
653 | /** | 653 | /** |
654 | * pfn_is_nosave - check if given pfn is in the 'nosave' section | ||
655 | */ | ||
656 | |||
657 | static inline int pfn_is_nosave(unsigned long pfn) | ||
658 | { | ||
659 | unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; | ||
660 | unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; | ||
661 | return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); | ||
662 | } | ||
663 | |||
664 | /** | ||
665 | * saveable - Determine whether a non-highmem page should be included in | 654 | * saveable - Determine whether a non-highmem page should be included in |
666 | * the suspend image. | 655 | * the suspend image. |
667 | * | 656 | * |
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 3581f8f86acd..b18c155cbb60 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c | |||
@@ -33,12 +33,14 @@ extern char resume_file[]; | |||
33 | 33 | ||
34 | #define SWSUSP_SIG "S1SUSPEND" | 34 | #define SWSUSP_SIG "S1SUSPEND" |
35 | 35 | ||
36 | static struct swsusp_header { | 36 | struct swsusp_header { |
37 | char reserved[PAGE_SIZE - 20 - sizeof(sector_t)]; | 37 | char reserved[PAGE_SIZE - 20 - sizeof(sector_t)]; |
38 | sector_t image; | 38 | sector_t image; |
39 | char orig_sig[10]; | 39 | char orig_sig[10]; |
40 | char sig[10]; | 40 | char sig[10]; |
41 | } __attribute__((packed, aligned(PAGE_SIZE))) swsusp_header; | 41 | } __attribute__((packed)); |
42 | |||
43 | static struct swsusp_header *swsusp_header; | ||
42 | 44 | ||
43 | /* | 45 | /* |
44 | * General things | 46 | * General things |
@@ -141,14 +143,14 @@ static int mark_swapfiles(sector_t start) | |||
141 | { | 143 | { |
142 | int error; | 144 | int error; |
143 | 145 | ||
144 | bio_read_page(swsusp_resume_block, &swsusp_header, NULL); | 146 | bio_read_page(swsusp_resume_block, swsusp_header, NULL); |
145 | if (!memcmp("SWAP-SPACE",swsusp_header.sig, 10) || | 147 | if (!memcmp("SWAP-SPACE",swsusp_header->sig, 10) || |
146 | !memcmp("SWAPSPACE2",swsusp_header.sig, 10)) { | 148 | !memcmp("SWAPSPACE2",swsusp_header->sig, 10)) { |
147 | memcpy(swsusp_header.orig_sig,swsusp_header.sig, 10); | 149 | memcpy(swsusp_header->orig_sig,swsusp_header->sig, 10); |
148 | memcpy(swsusp_header.sig,SWSUSP_SIG, 10); | 150 | memcpy(swsusp_header->sig,SWSUSP_SIG, 10); |
149 | swsusp_header.image = start; | 151 | swsusp_header->image = start; |
150 | error = bio_write_page(swsusp_resume_block, | 152 | error = bio_write_page(swsusp_resume_block, |
151 | &swsusp_header, NULL); | 153 | swsusp_header, NULL); |
152 | } else { | 154 | } else { |
153 | printk(KERN_ERR "swsusp: Swap header not found!\n"); | 155 | printk(KERN_ERR "swsusp: Swap header not found!\n"); |
154 | error = -ENODEV; | 156 | error = -ENODEV; |
@@ -564,7 +566,7 @@ int swsusp_read(void) | |||
564 | if (error < PAGE_SIZE) | 566 | if (error < PAGE_SIZE) |
565 | return error < 0 ? error : -EFAULT; | 567 | return error < 0 ? error : -EFAULT; |
566 | header = (struct swsusp_info *)data_of(snapshot); | 568 | header = (struct swsusp_info *)data_of(snapshot); |
567 | error = get_swap_reader(&handle, swsusp_header.image); | 569 | error = get_swap_reader(&handle, swsusp_header->image); |
568 | if (!error) | 570 | if (!error) |
569 | error = swap_read_page(&handle, header, NULL); | 571 | error = swap_read_page(&handle, header, NULL); |
570 | if (!error) | 572 | if (!error) |
@@ -591,17 +593,17 @@ int swsusp_check(void) | |||
591 | resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ); | 593 | resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ); |
592 | if (!IS_ERR(resume_bdev)) { | 594 | if (!IS_ERR(resume_bdev)) { |
593 | set_blocksize(resume_bdev, PAGE_SIZE); | 595 | set_blocksize(resume_bdev, PAGE_SIZE); |
594 | memset(&swsusp_header, 0, sizeof(swsusp_header)); | 596 | memset(swsusp_header, 0, sizeof(PAGE_SIZE)); |
595 | error = bio_read_page(swsusp_resume_block, | 597 | error = bio_read_page(swsusp_resume_block, |
596 | &swsusp_header, NULL); | 598 | swsusp_header, NULL); |
597 | if (error) | 599 | if (error) |
598 | return error; | 600 | return error; |
599 | 601 | ||
600 | if (!memcmp(SWSUSP_SIG, swsusp_header.sig, 10)) { | 602 | if (!memcmp(SWSUSP_SIG, swsusp_header->sig, 10)) { |
601 | memcpy(swsusp_header.sig, swsusp_header.orig_sig, 10); | 603 | memcpy(swsusp_header->sig, swsusp_header->orig_sig, 10); |
602 | /* Reset swap signature now */ | 604 | /* Reset swap signature now */ |
603 | error = bio_write_page(swsusp_resume_block, | 605 | error = bio_write_page(swsusp_resume_block, |
604 | &swsusp_header, NULL); | 606 | swsusp_header, NULL); |
605 | } else { | 607 | } else { |
606 | return -EINVAL; | 608 | return -EINVAL; |
607 | } | 609 | } |
@@ -632,3 +634,13 @@ void swsusp_close(void) | |||
632 | 634 | ||
633 | blkdev_put(resume_bdev); | 635 | blkdev_put(resume_bdev); |
634 | } | 636 | } |
637 | |||
638 | static int swsusp_header_init(void) | ||
639 | { | ||
640 | swsusp_header = (struct swsusp_header*) __get_free_page(GFP_KERNEL); | ||
641 | if (!swsusp_header) | ||
642 | panic("Could not allocate memory for swsusp_header\n"); | ||
643 | return 0; | ||
644 | } | ||
645 | |||
646 | core_initcall(swsusp_header_init); | ||