From: Peter Zijlstra <[email protected]>
Move struct scan_control to the general page_replace header so that all
policies can make use of it.
Signed-off-by: Peter Zijlstra <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
---
include/linux/mm_page_replace.h | 30 ++++++++++++++++++++++++++++++
mm/vmscan.c | 30 ------------------------------
2 files changed, 30 insertions(+), 30 deletions(-)
Index: linux-2.6-git/include/linux/mm_page_replace.h
===================================================================
--- linux-2.6-git.orig/include/linux/mm_page_replace.h
+++ linux-2.6-git/include/linux/mm_page_replace.h
@@ -8,6 +8,36 @@
#include <linux/pagevec.h>
#include <linux/mm_inline.h>
+struct scan_control {
+ /* Ask refill_inactive_zone, or shrink_cache to scan this many pages */
+ unsigned long nr_to_scan;
+
+ /* Incremented by the number of inactive pages that were scanned */
+ unsigned long nr_scanned;
+
+ /* Incremented by the number of pages reclaimed */
+ unsigned long nr_reclaimed;
+
+ unsigned long nr_mapped; /* From page_state */
+
+ /* Ask shrink_caches, or shrink_zone to scan at this priority */
+ unsigned int priority;
+
+ /* This context's GFP mask */
+ gfp_t gfp_mask;
+
+ int may_writepage;
+
+ /* Can pages be swapped as part of reclaim? */
+ int may_swap;
+
+ /* This context's SWAP_CLUSTER_MAX. If freeing memory for
+ * suspend, we effectively ignore SWAP_CLUSTER_MAX.
+ * In this context, it doesn't matter that we scan the
+ * whole list at once. */
+ int swap_cluster_max;
+};
+
#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru))
#ifdef ARCH_HAS_PREFETCH
Index: linux-2.6-git/mm/vmscan.c
===================================================================
--- linux-2.6-git.orig/mm/vmscan.c
+++ linux-2.6-git/mm/vmscan.c
@@ -52,36 +52,6 @@ typedef enum {
PAGE_CLEAN,
} pageout_t;
-struct scan_control {
- /* Ask refill_inactive_zone, or shrink_cache to scan this many pages */
- unsigned long nr_to_scan;
-
- /* Incremented by the number of inactive pages that were scanned */
- unsigned long nr_scanned;
-
- /* Incremented by the number of pages reclaimed */
- unsigned long nr_reclaimed;
-
- unsigned long nr_mapped; /* From page_state */
-
- /* Ask shrink_caches, or shrink_zone to scan at this priority */
- unsigned int priority;
-
- /* This context's GFP mask */
- gfp_t gfp_mask;
-
- int may_writepage;
-
- /* Can pages be swapped as part of reclaim? */
- int may_swap;
-
- /* This context's SWAP_CLUSTER_MAX. If freeing memory for
- * suspend, we effectively ignore SWAP_CLUSTER_MAX.
- * In this context, it doesn't matter that we scan the
- * whole list at once. */
- int swap_cluster_max;
-};
-
/*
* The list of shrinker callbacks used by to apply pressure to
* ageable caches.
-
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