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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 6dff47304971..995b8bf630ac 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -7,6 +7,8 @@
7#include <linux/sched.h> 7#include <linux/sched.h>
8#include <linux/fs.h> 8#include <linux/fs.h>
9 9
10DECLARE_PER_CPU(int, dirty_throttle_leaks);
11
10/* 12/*
11 * The 1/4 region under the global dirty thresh is for smooth dirty throttling: 13 * The 1/4 region under the global dirty thresh is for smooth dirty throttling:
12 * 14 *
@@ -23,11 +25,6 @@
23#define DIRTY_SCOPE 8 25#define DIRTY_SCOPE 8
24#define DIRTY_FULL_SCOPE (DIRTY_SCOPE / 2) 26#define DIRTY_FULL_SCOPE (DIRTY_SCOPE / 2)
25 27
26/*
27 * 4MB minimal write chunk size
28 */
29#define MIN_WRITEBACK_PAGES (4096UL >> (PAGE_CACHE_SHIFT - 10))
30
31struct backing_dev_info; 28struct backing_dev_info;
32 29
33/* 30/*
@@ -194,6 +191,8 @@ void writeback_set_ratelimit(void);
194void tag_pages_for_writeback(struct address_space *mapping, 191void tag_pages_for_writeback(struct address_space *mapping,
195 pgoff_t start, pgoff_t end); 192 pgoff_t start, pgoff_t end);
196 193
194void account_page_redirty(struct page *page);
195
197/* pdflush.c */ 196/* pdflush.c */
198extern int nr_pdflush_threads; /* Global so it can be exported to sysctl 197extern int nr_pdflush_threads; /* Global so it can be exported to sysctl
199 read-only. */ 198 read-only. */