On Tue, Dec 05, 2017 at 07:44:53AM -0800, Matthew Wilcox wrote: > v2: > - Fix inverted mask in dax.c > - Pass 'false' instead of '0' for 'only_cows' > - nommu definition > > >From ceee2e58548a5264b61000c02371956a1da3bee4 Mon Sep 17 00:00:00 2001 > From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> > Date: Tue, 5 Dec 2017 00:15:54 -0500 > Subject: [PATCH] mm: Add unmap_mapping_pages > > Several users of unmap_mapping_range() would much prefer to express > their range in pages rather than bytes. Unfortuately, on a 32-bit > kernel, you have to remember to cast your page number to a 64-bit type > before shifting it, and four places in the current tree didn't remember > to do that. That's a sign of a bad interface. > > Conveniently, unmap_mapping_range() actually converts from bytes into > pages, so hoist the guts of unmap_mapping_range() into the new function > unmap_mapping_pages() and convert the callers which want to use pages. > > Signed-off-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> > Reported-by: "zhangyi (F)" <yi.zhang@xxxxxxxxxx> Looks good. You can add: Reviewed-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
