On 19/04/2017 14:30, Peter Zijlstra wrote: > On Wed, Apr 19, 2017 at 02:18:25PM +0200, Laurent Dufour wrote: >> When mmap_sem will be moved to a range lock, some assertion done in >> the code are no more valid, like the one ensuring mmap_sem is held. >> > > Why are they no longer valid? I didn't explain that very well.. When using a range lock we can't check that the lock is simply held, but if the range we are interesting on is locked or not. As I mentioned this patch will have to be reverted / reviewed once the range lock is providing dedicated APIs, but some check might be difficult to adapt to a range. -- 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>
