Re: [PATCH 2/3] mm: Convert vm_insert_pfn_prot to vmf_insert_pfn_prot

From	Matthew Wilcox <willy@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/3] mm: Convert vm_insert_pfn_prot to vmf_insert_pfn_prot
Date	2016-01-27 05:20 +0100
Message-ID	<qVpKi-6jb-9@gated-at.bofh.it> (permalink)
References	<qUT7I-7lX-7@gated-at.bofh.it> <qUT7K-7lX-47@gated-at.bofh.it> <qUTho-7r7-27@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, Jan 25, 2016 at 09:35:36AM -0800, Andy Lutomirski wrote:
> On Mon, Jan 25, 2016 at 9:25 AM, Matthew Wilcox
> <matthew.r.wilcox@intel.com> wrote:
> > From: Matthew Wilcox <willy@linux.intel.com>
> >
> > Other than the name, the vmf_ version takes a pfn_t parameter, and
> > returns a VM_FAULT_ code suitable for returning from a fault handler.
> >
> > This patch also prevents vm_insert_pfn() from returning -EBUSY.
> > This is a good thing as several callers handled it incorrectly (and
> > none intentionally treat -EBUSY as a different case from 0).
> >
> > Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
> 
> This would be even nicer if you added vmf_insert_pfn as well :)

I've sent out patches adding it before ... my most recent attempt on
January 5th tied up with the DAX support for 1GB pages.  I'll keep
sending it until it sticks :-)

Thread

[PATCH 0/3] Fixes for vm_insert_pfn_prot() Matthew Wilcox <matthew.r.wilcox@intel.com> - 2016-01-25 18:30 +0100
  [PATCH 2/3] mm: Convert vm_insert_pfn_prot to vmf_insert_pfn_prot Matthew Wilcox <matthew.r.wilcox@intel.com> - 2016-01-25 18:30 +0100
    Re: [PATCH 2/3] mm: Convert vm_insert_pfn_prot to vmf_insert_pfn_prot Andy Lutomirski <luto@amacapital.net> - 2016-01-25 18:40 +0100
      Re: [PATCH 2/3] mm: Convert vm_insert_pfn_prot to vmf_insert_pfn_prot Matthew Wilcox <willy@linux.intel.com> - 2016-01-27 05:20 +0100
  [PATCH 3/3] dax: Handle write faults more efficiently Matthew Wilcox <matthew.r.wilcox@intel.com> - 2016-01-25 18:30 +0100
    Re: [PATCH 3/3] dax: Handle write faults more efficiently Andy Lutomirski <luto@amacapital.net> - 2016-01-25 18:40 +0100
      Re: [PATCH 3/3] dax: Handle write faults more efficiently Matthew Wilcox <willy@linux.intel.com> - 2016-01-27 05:20 +0100
        Re: [PATCH 3/3] dax: Handle write faults more efficiently Andy Lutomirski <luto@amacapital.net> - 2016-01-27 06:30 +0100
        Re: [PATCH 3/3] dax: Handle write faults more efficiently Andy Lutomirski <luto@amacapital.net> - 2016-01-27 07:10 +0100

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