Quoting ntl@xxxxxxxxx (ntl@xxxxxxxxx):
> From: Nathan Lynch <ntl@xxxxxxxxx>
>
> Restoration of process state from a checkpoint image is similar to
> exec in that the calling task's mm is replaced. Make exec_mmap
> available for this purpose.
>
> Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
> [ntl: extracted from Oren's "c/r: dump memory address space (private memory)"]
> Signed-off-by: Nathan Lynch <ntl@xxxxxxxxx>
Acked-by: Serge Hallyn <serge.hallyn@xxxxxxxxxx>
> ---
> fs/exec.c | 2 +-
> include/linux/mm.h | 3 +++
> 2 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/fs/exec.c b/fs/exec.c
> index c62efcb..9d8c27a 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -767,7 +767,7 @@ int kernel_read(struct file *file, loff_t offset,
>
> EXPORT_SYMBOL(kernel_read);
>
> -static int exec_mmap(struct mm_struct *mm)
> +int exec_mmap(struct mm_struct *mm)
> {
> struct task_struct *tsk;
> struct mm_struct * old_mm, *active_mm;
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 721f451..5397237 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1321,6 +1321,9 @@ extern int do_munmap(struct mm_struct *, unsigned long, size_t);
>
> extern unsigned long do_brk(unsigned long, unsigned long);
>
> +/* fs/exec.c */
> +extern int exec_mmap(struct mm_struct *mm);
> +
> /* filemap.c */
> extern unsigned long page_unuse(struct page *);
> extern void truncate_inode_pages(struct address_space *, loff_t);
> --
> 1.7.4
>
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