Commit 8bd3873d authored by Rolf Eike Beer's avatar Rolf Eike Beer Committed by Andrew Morton
Browse files

mm: pagewalk: add api documentation for walk_page_range_novma() 

Link: https://lkml.kernel.org/r/8991525.CDJkKcVGEf@devpool047


Signed-off-by: default avatarRolf Eike Beer <eb@emlix.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent e2f8f44b

mm/pagewalk.c

+9 −1
Original line number Diff line number Diff line
@@ -479,7 +479,15 @@ int walk_page_range(struct mm_struct *mm, unsigned long start, 
	return err;

}



/*

/**

 * walk_page_range_novma - walk a range of pagetables not backed by a vma

 * @mm:		mm_struct representing the target process of page table walk

 * @start:	start address of the virtual address range

 * @end:	end address of the virtual address range

 * @ops:	operation to call during the walk

 * @pgd:	pgd to walk if different from mm->pgd

 * @private:	private data for callbacks' usage

 *

 * Similar to walk_page_range() but can walk any page tables even if they are

 * not backed by VMAs. Because 'unusual' entries may be walked this function

 * will also not lock the PTEs for the pte_entry() callback. This is useful for