On Wed, Dec 06, 2017 at 06:26:27AM -0800, Matthew Wilcox wrote: > v3: > - Fix compilation > (I forgot to git commit --amend) > - Added Ross' Reviewed-by > v2: > - Fix inverted mask in dax.c > - Pass 'false' instead of '0' for 'only_cows' > - nommu definition > > --- 8< --- > > From df142c51e111f7c386f594d5443530ea17abba5f Mon Sep 17 00:00:00 2001 > From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> > Date: Tue, 5 Dec 2017 00:15:54 -0500 > Subject: [PATCH v3] mm: Add unmap_mapping_pages > > Several users of unmap_mapping_range() would 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 a 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> > Reviewed-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx> Looks good to me. Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> -- Kirill A. Shutemov
