Re: [next:master 4658/4676] undefined reference to `copy_user_page'

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, 5 Feb 2015 20:22:34 +0000 "Wilcox, Matthew R" <matthew.r.wilcox@xxxxxxxxx> wrote:

> 
> -----Original Message-----
> From: Andrew Morton [mailto:akpm@xxxxxxxxxxxxxxxxxxxx] 
> Sent: Thursday, February 05, 2015 12:21 PM
> To: Wilcox, Matthew R
> Cc: Wu, Fengguang; kbuild-all@xxxxxx; Linux Memory Management List; linux-mips@xxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [next:master 4658/4676] undefined reference to `copy_user_page'
> 
> On Thu, 22 Jan 2015 15:12:15 +0000 "Wilcox, Matthew R" <matthew.r.wilcox@xxxxxxxxx> wrote:
> 
> > Looks like mips *declares* copy_user_page(), but never *defines* an implementation.
> > 
> > It's documented in Documentation/cachetlb.txt, but it's not (currently) called if the architecture defines its own copy_user_highpage(), so some bitrot has occurred.  ARM is currently fixing this, and MIPS will need to do the same.
> > 
> > (We can't use copy_user_highpage() in DAX because we don't necessarily have a struct page for 'from'.)
> 
> > Has there been any progress on this?  It would be unpleasant to merge
> > DAX into 3.19 and break MIPS and ARM.
>
> Yes, both MIPS and ARM have sent patches out for this.

I'm not seeing either in linux-next.





[Index of Archives]     [Linux MIPS Home]     [LKML Archive]     [Linux ARM Kernel]     [Linux ARM]     [Linux]     [Git]     [Yosemite News]     [Linux SCSI]     [Linux Hams]

  Powered by Linux