Messages in this thread | | | Date | Tue, 3 Feb 2015 10:40:08 -0800 | From | Leonid Yegoshin <> | Subject | Re: mips: Re-introduce copy_user_page |
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On 01/30/2015 09:23 PM, Guenter Roeck wrote: > Commit bcd022801ee5 ("MIPS: Fix COW D-cache aliasing on fork") replaced > the inline function copy_user_page for mips with an external reference, > but neglected to introduce the actual non-inline function. Restore it. > > Fixes: bcd022801ee5 ("MIPS: Fix COW D-cache aliasing on fork") > Fixes: 4927b7d77c00 ("dax,ext2: replace the XIP page fault handler with the DAX page fault handler") > Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> > Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> > Signed-off-by: Guenter Roeck <linux@roeck-us.net> >
Why do you use copy_user_page? It doesn't work properly in HIGHMEM environment and it is excluded from MIPS because of that, I believe.
You should use copy_user_highpage() for user pages.
- Leonid.
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