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| author | Vivek Goyal <vgoyal@in.ibm.com> | 2005-06-25 14:58:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:53 -0700 |
| commit | 60e64d46a58236e3c718074372cab6a5b56a3b15 (patch) | |
| tree | 194e5fa7a53a1ac4a106b1527ec69cf3c2179bb0 /include | |
| parent | 5f016456c96868c27df248a54d1cc919e7b70a23 (diff) | |
| download | linux-3.10-60e64d46a58236e3c718074372cab6a5b56a3b15.tar.gz linux-3.10-60e64d46a58236e3c718074372cab6a5b56a3b15.tar.bz2 linux-3.10-60e64d46a58236e3c718074372cab6a5b56a3b15.zip | |
[PATCH] kdump: Routines for copying dump pages
This patch provides the interfaces necessary to read the dump contents,
treating it as a high memory device.
Signed off by Hariprasad Nellitheertha <hari@in.ibm.com>
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/highmem.h | 1 | ||||
| -rw-r--r-- | include/linux/crash_dump.h | 13 | ||||
| -rw-r--r-- | include/linux/highmem.h | 1 |
3 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-i386/highmem.h b/include/asm-i386/highmem.h index 1df42bf347d..0fd331306b6 100644 --- a/include/asm-i386/highmem.h +++ b/include/asm-i386/highmem.h @@ -70,6 +70,7 @@ void *kmap(struct page *page); void kunmap(struct page *page); void *kmap_atomic(struct page *page, enum km_type type); void kunmap_atomic(void *kvaddr, enum km_type type); +void *kmap_atomic_pfn(unsigned long pfn, enum km_type type); struct page *kmap_atomic_to_page(void *ptr); #define flush_cache_kmaps() do { } while (0) diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h new file mode 100644 index 00000000000..7d983b81742 --- /dev/null +++ b/include/linux/crash_dump.h @@ -0,0 +1,13 @@ +#ifndef LINUX_CRASH_DUMP_H +#define LINUX_CRASH_DUMP_H + +#ifdef CONFIG_CRASH_DUMP +#include <linux/kexec.h> +#include <linux/smp_lock.h> +#include <linux/device.h> +#include <linux/proc_fs.h> + +extern ssize_t copy_oldmem_page(unsigned long, char *, size_t, + unsigned long, int); +#endif /* CONFIG_CRASH_DUMP */ +#endif /* LINUX_CRASHDUMP_H */ diff --git a/include/linux/highmem.h b/include/linux/highmem.h index 2a7e6c65c88..6bece9280eb 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h @@ -28,6 +28,7 @@ static inline void *kmap(struct page *page) #define kmap_atomic(page, idx) page_address(page) #define kunmap_atomic(addr, idx) do { } while (0) +#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn)) #define kmap_atomic_to_page(ptr) virt_to_page(ptr) #endif /* CONFIG_HIGHMEM */ |