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-rw-r--r--include/linux/writeback.h9
1 files changed, 4 insertions, 5 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 6dff473..995b8bf 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -7,6 +7,8 @@
#include <linux/sched.h>
#include <linux/fs.h>
+DECLARE_PER_CPU(int, dirty_throttle_leaks);
+
/*
* The 1/4 region under the global dirty thresh is for smooth dirty throttling:
*
@@ -23,11 +25,6 @@
#define DIRTY_SCOPE 8
#define DIRTY_FULL_SCOPE (DIRTY_SCOPE / 2)
-/*
- * 4MB minimal write chunk size
- */
-#define MIN_WRITEBACK_PAGES (4096UL >> (PAGE_CACHE_SHIFT - 10))
-
struct backing_dev_info;
/*
@@ -194,6 +191,8 @@ void writeback_set_ratelimit(void);
void tag_pages_for_writeback(struct address_space *mapping,
pgoff_t start, pgoff_t end);
+void account_page_redirty(struct page *page);
+
/* pdflush.c */
extern int nr_pdflush_threads; /* Global so it can be exported to sysctl
read-only. */
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