leds: add possibility to remove leds classdevs during suspend/resume

[mv-sheeva.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index bcbe6979ff65be1c392bfb8238e0a911b938de48..89d7c691b93a6a660ee5468ac333a805b049a6f7 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -718,6 +718,28 @@ unsigned long unmap_vmas(struct mmu_gather **tlb,
                struct vm_area_struct *start_vma, unsigned long start_addr,
                unsigned long end_addr, unsigned long *nr_accounted,
                struct zap_details *);
+
+/**
+ * mm_walk - callbacks for walk_page_range
+ * @pgd_entry: if set, called for each non-empty PGD (top-level) entry
+ * @pud_entry: if set, called for each non-empty PUD (2nd-level) entry
+ * @pmd_entry: if set, called for each non-empty PMD (3rd-level) entry
+ * @pte_entry: if set, called for each non-empty PTE (4th-level) entry
+ * @pte_hole: if set, called for each hole at all levels
+ *
+ * (see walk_page_range for more details)
+ */
+struct mm_walk {
+       int (*pgd_entry)(pgd_t *, unsigned long, unsigned long, void *);
+       int (*pud_entry)(pud_t *, unsigned long, unsigned long, void *);
+       int (*pmd_entry)(pmd_t *, unsigned long, unsigned long, void *);
+       int (*pte_entry)(pte_t *, unsigned long, unsigned long, void *);
+       int (*pte_hole)(unsigned long, unsigned long, void *);
+};
+
+int walk_page_range(const struct mm_struct *, unsigned long addr,
+                   unsigned long end, const struct mm_walk *walk,
+                   void *private);
 void free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
                unsigned long end, unsigned long floor, unsigned long ceiling);
 void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *start_vma,