[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>
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 350878a..9cd0d0e 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 4173739..353ce90 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c
@@ -600,7 +600,7 @@ 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);