Re: [PATCH 01/10] Make exec_mmap extern

[Serge E. Hallyn]

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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