+ mmfsdax-mark-dax_iomap_pmd_fault-as-const.patch added to -mm tree

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The patch titled
     Subject: mm,fs,dax: mark dax_iomap_pmd_fault as const
has been added to the -mm tree.  Its filename is
     mmfsdax-mark-dax_iomap_pmd_fault-as-const.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mmfsdax-mark-dax_iomap_pmd_fault-as-const.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mmfsdax-mark-dax_iomap_pmd_fault-as-const.patch

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------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: mm,fs,dax: mark dax_iomap_pmd_fault as const

The two alternative implementations of dax_iomap_fault have different
prototypes, and one of them is obviously wrong as seen from this build
warning:

fs/dax.c: In function 'dax_iomap_fault':
fs/dax.c:1462:35: error: passing argument 2 of 'dax_iomap_pmd_fault' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]

This marks the argument 'const' as in all the related functions.

Fixes: a2d581675d48 ("mm,fs,dax: change ->pmd_fault to ->huge_fault")
Link: http://lkml.kernel.org/r/20170227203349.3318733-1-arnd@xxxxxxxx
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 fs/dax.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN fs/dax.c~mmfsdax-mark-dax_iomap_pmd_fault-as-const fs/dax.c
--- a/fs/dax.c~mmfsdax-mark-dax_iomap_pmd_fault-as-const
+++ a/fs/dax.c
@@ -1436,7 +1436,8 @@ out:
 	return result;
 }
 #else
-static int dax_iomap_pmd_fault(struct vm_fault *vmf, struct iomap_ops *ops)
+static int dax_iomap_pmd_fault(struct vm_fault *vmf,
+			       const struct iomap_ops *ops)
 {
 	return VM_FAULT_FALLBACK;
 }
_

Patches currently in -mm which might be from arnd@xxxxxxxx are

mmfsdax-mark-dax_iomap_pmd_fault-as-const.patch

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