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Subject[patch] remove PG_skip


Remove PG_skip. Nothing is using it (the change was acked by rmk a
while back)

=====================================

--- 2.5.9/include/linux/page-flags.h~cleanup-050-pg_skip Wed Apr 24 01:06:14 2002
+++ 2.5.9-akpm/include/linux/page-flags.h Wed Apr 24 01:06:14 2002
@@ -32,9 +32,6 @@
* active, inactive_dirty and inactive_clean lists are protected by
* the pagemap_lru_lock, and *NOT* by the usual PG_locked_dontuse bit!
*
- * PG_skip is used on sparc/sparc64 architectures to "skip" certain
- * parts of the address space.
- *
* PG_error is set to indicate that an I/O error occurred on this page.
*
* PG_arch_1 is an architecture specific page state bit. The generic
@@ -62,14 +59,13 @@
#define PG_active 7

#define PG_slab 8 /* slab debug (Suparna wants this) */
-#define PG_skip 10 /* kill me now: obsolete */
-#define PG_highmem 11
-#define PG_checked 12 /* kill me in 2.5.<early>. */
+#define PG_highmem 9
+#define PG_checked 10 /* kill me in 2.5.<early>. */
+#define PG_arch_1 11

-#define PG_arch_1 13
-#define PG_reserved 14
-#define PG_launder 15 /* written out by VM pressure.. */
-#define PG_private 16 /* Has something at ->private */
+#define PG_reserved 12
+#define PG_launder 13 /* written out by VM pressure.. */
+#define PG_private 14 /* Has something at ->private */

/*
* Per-CPU page acounting. Inclusion of this file requires
--- 2.5.9/arch/arm/mm/init.c~cleanup-050-pg_skip Wed Apr 24 01:06:14 2002
+++ 2.5.9-akpm/arch/arm/mm/init.c Wed Apr 24 01:44:54 2002
@@ -64,18 +64,6 @@ static struct meminfo meminfo __initdata
*/
struct page *empty_zero_page;

-/* This is currently broken
- * PG_skip is used on sparc/sparc64 architectures to "skip" certain
- * parts of the address space.
- *
- * #define PG_skip 10
- * #define PageSkip(page) (machine_is_riscpc() && test_bit(PG_skip, &(page)->flags))
- * if (PageSkip(page)) {
- * page = page->next_hash;
- * if (page == NULL)
- * break;
- * }
- */
void show_mem(void)
{
int free = 0, total = 0, reserved = 0;
-
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