+ mm-allow-pfnmap-faults.patch added to -mm tree

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

 



The patch titled
     mm: allow pfnmap ->fault()s
has been added to the -mm tree.  Its filename is
     mm-allow-pfnmap-faults.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: mm: allow pfnmap ->fault()s
From: Nick Piggin <npiggin@xxxxxxx>

Take out an assertion to allow ->fault handlers to service PFNMAP regions. 
This is required to reimplement .nopfn handlers with .fault handlers and
subsequently remove nopfn.

Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
Acked-by: Jes Sorensen <jes@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/memory.c |    2 --
 1 file changed, 2 deletions(-)

diff -puN mm/memory.c~mm-allow-pfnmap-faults mm/memory.c
--- a/mm/memory.c~mm-allow-pfnmap-faults
+++ a/mm/memory.c
@@ -2290,8 +2290,6 @@ static int __do_fault(struct mm_struct *
 	vmf.flags = flags;
 	vmf.page = NULL;
 
-	BUG_ON(vma->vm_flags & VM_PFNMAP);
-
 	ret = vma->vm_ops->fault(vma, &vmf);
 	if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))
 		return ret;
_

Patches currently in -mm which might be from npiggin@xxxxxxx are

linux-next.patch
mm-allow-pfnmap-faults.patch
mspec-convert-nopfn-to-fault.patch
reiser4.patch
likeliness-accounting-change-and-cleanup.patch

--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Kernel Newbies FAQ]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Photo]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux