Andrew,
The following is a series of changes to remove the do_brk_munmap()
optimization that Hugh flagged as an issue. Please apply patch 1 to
(mm/mmap: change do_brk_flags() to expand existing VMA and add
do_brk_munmap()) and the last two should replace patches in the v11 set.
2/3 should replace 28/69
3/3 should replace 29/69
The end result should look like this:
static int do_brk_munmap(struct ma_state *mas, struct vm_area_struct *vma,
unsigned long newbrk, unsigned long oldbrk,
struct list_head *uf)
{
struct mm_struct *mm = vma->vm_mm;
int ret;
arch_unmap(mm, newbrk, oldbrk);
ret = do_mas_align_munmap(mas, vma, mm, newbrk, oldbrk, uf, true);
validate_mm_mt(mm);
return ret;
}
Thanks,
Liam
