thp: consolidate code between handle_mm_fault() and do_huge_pmd_anonymous_page()
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Thu, 12 Sep 2013 22:14:05 +0000 (15:14 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 12 Sep 2013 22:38:03 +0000 (15:38 -0700)
commitc02925540ca7019465a43c00f8a3c0186ddace2b
tree3097ece86eedd0a01cf5dbc0a8f6c28fcbd1f4f7
parent128ec037bafe5905b2e6f2796f426a1d247d0066
thp: consolidate code between handle_mm_fault() and do_huge_pmd_anonymous_page()

do_huge_pmd_anonymous_page() has copy-pasted piece of handle_mm_fault()
to handle fallback path.

Let's consolidate code back by introducing VM_FAULT_FALLBACK return
code.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hugh Dickins <hughd@google.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/huge_mm.h
include/linux/mm.h
mm/huge_memory.c
mm/memory.c