Commit 39aa3cb3 authored by Stefan Bader's avatar Stefan Bader Committed by Linus Torvalds
Browse files

mm: Move vma_stack_continue into mm.h 



So it can be used by all that need to check for that.

Signed-off-by: default avatarStefan Bader <stefan.bader@canonical.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 26a94e81

fs/proc/task_mmu.c

+2 −1
Original line number Diff line number Diff line
@@ -224,6 +224,7 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) 
	/* We don't show the stack guard page in /proc/maps */

	start = vma->vm_start;

	if (vma->vm_flags & VM_GROWSDOWN)

		if (!vma_stack_continue(vma->vm_prev, vma->vm_start))

			start += PAGE_SIZE;



	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",

include/linux/mm.h

+6 −0
Original line number Diff line number Diff line
@@ -864,6 +864,12 @@ int set_page_dirty(struct page *page); 
int set_page_dirty_lock(struct page *page);

int clear_page_dirty_for_io(struct page *page);



/* Is the vma a continuation of the stack vma above it? */

static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)

{

	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);

}



extern unsigned long move_page_tables(struct vm_area_struct *vma,

		unsigned long old_addr, struct vm_area_struct *new_vma,

		unsigned long new_addr, unsigned long len);

mm/mlock.c

+0 −6
Original line number Diff line number Diff line
@@ -135,12 +135,6 @@ void munlock_vma_page(struct page *page) 
	}

}



/* Is the vma a continuation of the stack vma above it? */

static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)

{

	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);

}



static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)

{

	return (vma->vm_flags & VM_GROWSDOWN) &&