[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, 4 insertions, 4 deletions

diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index a89969d8371d..57b286dc7f46 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -66,7 +66,7 @@ static struct page * dir_get_page(struct inode *dir, unsigned long n)
 	if (!IS_ERR(page)) {
 		wait_on_page(page);
 		kmap(page);
-		if (!Page_Uptodate(page))
+		if (!PageUptodate(page))
 			goto fail;
 	}
 	return page;
@@ -269,7 +269,7 @@ int minix_delete_entry(struct minix_dir_entry *de, struct page *page)
 		de->inode = 0;
 		err = dir_commit_chunk(page, from, to);
 	}
-	UnlockPage(page);
+	unlock_page(page);
 	dir_put_page(page);
 	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
 	mark_inode_dirty(inode);
@@ -303,7 +303,7 @@ int minix_make_empty(struct inode *inode, struct inode *dir)
 
 	err = dir_commit_chunk(page, 0, 2 * sbi->s_dirsize);
 fail:
-	UnlockPage(page);
+	unlock_page(page);
 	page_cache_release(page);
 	return err;
 }
@@ -369,7 +369,7 @@ void minix_set_link(struct minix_dir_entry *de, struct page *page,
 		de->inode = inode->i_ino;
 		err = dir_commit_chunk(page, from, to);
 	}
-	UnlockPage(page);
+	unlock_page(page);
 	dir_put_page(page);
 	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
 	mark_inode_dirty(dir);