Commit 01cddfe9 authored Feb 27, 2017 by Arnd Bergmann Committed by Linus Torvalds Feb 27, 2017

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: a2d58167 ("mm,fs,dax: change ->pmd_fault to ->huge_fault")
Link: http://lkml.kernel.org/r/20170227203349.3318733-1-arnd@arndb.de

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent e5d56efc

fs/dax.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}