On 09/11/2014 01:46 AM, Qiaowei Ren wrote:
> + * This function will be called by do_munmap(), and the VMAs covering
> + * the virtual address region start...end have already been split if
> + * necessary and remvoed from the VMA list.
"remvoed" -> "removed"
> +void mpx_unmap(struct mm_struct *mm,
> + unsigned long start, unsigned long end)
> +{
> + int ret;
> +
> + ret = mpx_try_unmap(mm, start, end);
> + if (ret == -EINVAL)
> + force_sig(SIGSEGV, current);
> +}
In the case of a fault during an unmap, this just ignores the situation
and returns silently. Where is the code to retry the freeing operation
outside of mmap_sem?
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