[PATCH] cleanup page flags

page->flags cleanup.

Moves the definitions of the page->flags bits and all the PageFoo
macros into linux/page-flags.h.  That file is currently included from
mm.h, but the stage is set to remove that and include page-flags.h
direct in all .c files which require that.  (120 of them).

The patch also makes all the page flag macros and functions consistent:

For PG_foo, the following functions are defined:

	SetPageFoo
	ClearPageFoo
	TestSetPageFoo
	TestClearPageFoo
	PageFoo

and that's it.

- Page_Uptodate is renamed to PageUptodate

- LockPage is removed.  All users updated to use SetPageLocked

- UnlockPage is removed.  All callers updated to use unlock_page().
  it's a real function - there's no need to hide that fact.

- PageTestandClearReferenced renamed to TestClearPageReferenced

- PageSetSlab renamed to SetPageSlab

- __SetPageReserved is removed.  It's an infinitesimally small
   microoptimisation, and is inconsistent.

- TryLockPage is renamed to TestSetPageLocked

- PageSwapCache() is renamed to page_swap_cache(), so it doesn't
  pretend to be a page->flags bit test.

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index e896adad28ec..b363263644ea 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -425,7 +425,7 @@ static int cramfs_readpage(struct file *file, struct page * page)
 	kunmap(page);
 	flush_dcache_page(page);
 	SetPageUptodate(page);
-	UnlockPage(page);
+	unlock_page(page);
 	return 0;
 }