> > > > Is this really required to be part of the initial support? > > > > > > No.... I was just thinking out-loud. > > > > > alloc_vmap_area() has an retry path, basically if it fails the code > > will try to "purge" > > areas and repeat it one more time. So we do not need to purge outside some where > > else. > > I think that Neil was not concerned about the need for purging something > but rather a waiting event the retry loop could hook into. So that the > sleep wouldn't have to be a random timeout but something that is > actually actionable - like somebody freeing an area. > I see this point. But sometimes it is not as straightforward as it could be. If we have lack of vmap space within a specific range, it might be not about reclaiming(nobody frees to that area and no outstanding areas) thus we can do nothing. -- Uladzislau Rezki
