On Thu, Feb 08, 2018 at 01:37:43PM -0800, Matthew Wilcox wrote: > On Thu, Feb 08, 2018 at 12:21:00PM -0800, Matthew Wilcox wrote: > > Now that I think about it, though, perhaps the simplest solution is not > > to worry about checking whether _mapcount has saturated, and instead when > > adding a new mmap, check whether this task already has it mapped 10 times. > > If so, refuse the mapping. > > That turns out to be quite easy. Comments on this approach? This *may* break some remap_file_pages() users. And it may be rather costly for popular binaries. Consider libc.so. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
