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authorNick Piggin <nickpiggin@yahoo.com.au>2007-02-28 20:12:27 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-03-01 14:53:37 -0800
commit5409bae07a63630ba5a40f3f00b7f3e6d7eceedd (patch)
treecc8837a90476091fc1fec7f20e4a2ca99ffbae41
parent93a6fefe2f6fc380870c0985b246bec7f37a06f7 (diff)
[PATCH] Rename PG_checked to PG_owner_priv_1
Rename PG_checked to PG_owner_priv_1 to reflect its availablilty as a private flag for use by the owner/allocator of the page. In the case of pagecache pages (which might be considered to be owned by the mm), filesystems may use the flag. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/page-flags.h4
-rw-r--r--mm/page_alloc.c2
2 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 350878a2d84..9cd0d0eaf52 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -76,7 +76,7 @@
#define PG_active 6
#define PG_slab 7 /* slab debug (Suparna wants this) */
-#define PG_checked 8 /* kill me in 2.5.<early>. */
+#define PG_owner_priv_1 8 /* Owner use. If pagecache, fs may use*/
#define PG_arch_1 9
#define PG_reserved 10
#define PG_private 11 /* If pagecache, has fs-private data */
@@ -91,6 +91,8 @@
#define PG_nosave_free 18 /* Used for system suspend/resume */
#define PG_buddy 19 /* Page is free, on buddy lists */
+/* PG_owner_priv_1 users should have descriptive aliases */
+#define PG_checked PG_owner_priv_1 /* Used by some filesystems */
#if (BITS_PER_LONG > 32)
/*
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 41737395bbc..353ce9039a8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -600,7 +600,7 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
page->flags &= ~(1 << PG_uptodate | 1 << PG_error |
1 << PG_referenced | 1 << PG_arch_1 |
- 1 << PG_checked | 1 << PG_mappedtodisk);
+ 1 << PG_owner_priv_1 | 1 << PG_mappedtodisk);
set_page_private(page, 0);
set_page_refcounted(page);