• Linus Torvalds's avatar
    VM: add "vm_mmap()" helper function · 6be5ceb0
    Linus Torvalds authored
    This continues the theme started with vm_brk() and vm_munmap():
    vm_mmap() does the same thing as do_mmap(), but additionally does the
    required VM locking.
    This uninlines (and rewrites it to be clearer) do_mmap(), which sadly
    duplicates it in mm/mmap.c and mm/nommu.c.  But that way we don't have
    to export our internal do_mmap_pgoff() function.
    Some day we hopefully don't have to export do_mmap() either, if all
    modular users can become the simpler vm_mmap() instead.  We're actually
    very close to that already, with the notable exception of the (broken)
    use in i810, and a couple of stragglers in binfmt_elf.
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>