On Fri, Dec 16, 2022 at 11:20:12AM -0800, Mike Kravetz wrote: > zap_page_range was originally designed to unmap pages within an address > range that could span multiple vmas. While working on [1], it was > discovered that all callers of zap_page_range pass a range entirely within > a single vma. In addition, the mmu notification call within zap_page > range does not correctly handle ranges that span multiple vmas as calls > should be vma specific. > > Instead of fixing zap_page_range, change all callers to use the new > routine zap_vma_page_range. zap_vma_page_range is just a wrapper around > zap_page_range_single passing in NULL zap details. The name is also > more in line with other exported routines that operate within a vma. > We can then remove zap_page_range. > > Also, change madvise_dontneed_single_vma to use this new routine. > > [1] https://lore.kernel.org/linux-mm/20221114235507.294320-2-mike.kravetz@xxxxxxxxxx/ > Suggested-by: Peter Xu <peterx@xxxxxxxxxx> > Signed-off-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Acked-by: Peter Xu <peterx@xxxxxxxxxx> Thanks! -- Peter Xu
