mm: remove unused VM_<READfoo> macros and expand other in-place

These VM_<READfoo> macros aren't used very often and three of them
aren't used at all.

Expand the ones that are used in-place, and remove all the now unused
#define VM_<foo> macros.

VM_READHINTMASK, VM_NormalReadHint and VM_ClearReadHint were added just
before 2.4 and appears have never been used.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/rmap.c b/mm/rmap.c
index e22ceeb6e5ec..cd356df4f71a 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -720,7 +720,7 @@ int page_referenced_one(struct page *page, struct vm_area_struct *vma,
                          * mapping is already gone, the unmap path will have
                          * set PG_referenced or activated the page.
                          */
-                        if (likely(!VM_SequentialReadHint(vma)))
+                        if (likely(!(vma->vm_flags & VM_SEQ_READ)))
                                 referenced++;
                 }
                 pte_unmap_unlock(pte, ptl);