mm/mmap: fix obsolete comment of find_extend_vma

mmget_still_valid() has already been removed via commit 4d45e75a9955 ("mm:
remove the now-unnecessary mmget_still_valid() hack").  Update the
corresponding comment.

Link: https://lkml.kernel.org/r/20220709092527.47778-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/mmap.c b/mm/mmap.c
index edf27a2..d529837 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2541,7 +2541,6 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr)
        vma = find_vma_prev(mm, addr, &prev);
        if (vma && (vma->vm_start <= addr))
                return vma;
-       /* don't alter vm_end if the coredump is running */
        if (!prev || expand_stack(prev, addr))
                return NULL;
        if (prev->vm_flags & VM_LOCKED)