On Fri, Mar 24, 2017 at 01:24:36PM +0300, Kirill A. Shutemov wrote: > I'm not sure what is the best way to fix this. > Few options: > - Drop the VM_BUG(); > - Bump preempt count during __get_user_pages_fast(); > - Use get_page() instead of page_cache_get_speculative() on x86. > > Any opinions? I think I'm in favour of the first; either remove or amend to include irqs_disabled() or so. This in favour of keeping the variants of GUP down. -- 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>
