Re: [PATCH 01/10] mm/hugetlb: add cache of descriptors to resv_map for region_add

2015-07-03 Thread Mike Kravetz
On 07/02/2015 09:21 PM, Hillf Danton wrote: fallocate hole punch will want to remove a specific range of pages. When pages are removed, their associated entries in the region/reserve map will also be removed. This will break an assumption in the region_chg/region_add calling sequence. If a new

Re: [PATCH 01/10] mm/hugetlb: add cache of descriptors to resv_map for region_add

2015-07-02 Thread Hillf Danton
> > fallocate hole punch will want to remove a specific range of > pages. When pages are removed, their associated entries in > the region/reserve map will also be removed. This will break > an assumption in the region_chg/region_add calling sequence. > If a new region descriptor must be allocat