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kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE

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Move the stuff currently only used by the kexec file code within
CONFIG_KEXEC_FILE (and CONFIG_KEXEC_VERIFY_SIG).

Also move internal "struct kexec_sha_region" and "struct kexec_buf" into
"kexec_internal.h".

Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Xunlei Pang
2016-01-20 15:00:36 -08:00
committed by Linus Torvalds
parent 2b24692b92
commit 978e30c9b4
4 changed files with 50 additions and 37 deletions
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21
kernel/kexec_internal.h
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@@ -15,6 +15,27 @@ int kimage_is_destination_range(struct kimage *image,
extern struct mutex kexec_mutex;
#ifdef CONFIG_KEXEC_FILE
struct kexec_sha_region {
unsigned long start;
unsigned long len;
};
/*
* Keeps track of buffer parameters as provided by caller for requesting
* memory placement of buffer.
*/
struct kexec_buf {
struct kimage *image;
char *buffer;
unsigned long bufsz;
unsigned long mem;
unsigned long memsz;
unsigned long buf_align;
unsigned long buf_min;
unsigned long buf_max;
bool top_down; /* allocate from top of memory hole */
};
void kimage_file_post_load_cleanup(struct kimage *image);
#else /* CONFIG_KEXEC_FILE */
static inline void kimage_file_post_load_cleanup(struct kimage *image) { }