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-rw-r--r--include/linux/writeback.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index daa6c125f66..050915b5957 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -111,9 +111,15 @@ balance_dirty_pages_ratelimited(struct address_space *mapping)
balance_dirty_pages_ratelimited_nr(mapping, 1);
}
+typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc,
+ void *data);
+
int pdflush_operation(void (*fn)(unsigned long), unsigned long arg0);
-extern int generic_writepages(struct address_space *mapping,
- struct writeback_control *wbc);
+int generic_writepages(struct address_space *mapping,
+ struct writeback_control *wbc);
+int write_cache_pages(struct address_space *mapping,
+ struct writeback_control *wbc, writepage_t writepage,
+ void *data);
int do_writepages(struct address_space *mapping, struct writeback_control *wbc);
int sync_page_range(struct inode *inode, struct address_space *mapping,
loff_t pos, loff_t count);