mm,fs,dax: mark dax_iomap_pmd_fault as const
authorArnd Bergmann <arnd@arndb.de>
Mon, 27 Feb 2017 22:26:44 +0000 (14:26 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 28 Feb 2017 02:43:45 +0000 (18:43 -0800)
commit01cddfe99008da87dd4f6b8fbfa31e09257b9133
tree57188704b093e50c107677be1bb51fc82b2c517d
parente5d56efc97f8240d0b5d66c03949382b6d7e5570
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@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>
fs/dax.c