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authorIngo Molnar <mingo@kernel.org>2016-02-25 08:00:38 (GMT)
committerIngo Molnar <mingo@kernel.org>2016-02-25 08:00:38 (GMT)
commitc0853867a10f9215132dccdb84c720a5f856f4d2 (patch)
tree92d3162ea2fc6fe0276dabc869e01293325f862c /include
parent6dc390ad61ac8dfca5fa9b0823981fb6f7ec17a0 (diff)
parent1923f3d02768bd904dfe5607f3f93c3008b8db61 (diff)
downloadlinux-c0853867a10f9215132dccdb84c720a5f856f4d2.tar.xz
Merge branch 'x86/debug' into core/objtool, to pick up frame pointer fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h2
-rw-r--r--include/linux/mm_types.h22
2 files changed, 21 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 516e149..b1d4b8c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2138,6 +2138,8 @@ int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn);
+int vm_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr,
+ unsigned long pfn, pgprot_t pgprot);
int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
pfn_t pfn);
int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 624b78b..944b2b3 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -566,10 +566,26 @@ static inline void clear_tlb_flush_pending(struct mm_struct *mm)
}
#endif
-struct vm_special_mapping
-{
- const char *name;
+struct vm_fault;
+
+struct vm_special_mapping {
+ const char *name; /* The name, e.g. "[vdso]". */
+
+ /*
+ * If .fault is not provided, this points to a
+ * NULL-terminated array of pages that back the special mapping.
+ *
+ * This must not be NULL unless .fault is provided.
+ */
struct page **pages;
+
+ /*
+ * If non-NULL, then this is called to resolve page faults
+ * on the special mapping. If used, .pages is not checked.
+ */
+ int (*fault)(const struct vm_special_mapping *sm,
+ struct vm_area_struct *vma,
+ struct vm_fault *vmf);
};
enum tlb_flush_reason {