X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=include%2Flinux%2Fwriteback.h;h=4ef4d22e5e43bb1439183aee44782fb5d46a41a3;hb=d756d10e246a01515d07f8161181b8a14afba7cc;hp=fc35e6bdfb93e4bf4d5cac5b50c983e97e846c5a;hpb=73441c665bee555526b1cf3eef603a0cff0b7e19;p=karo-tx-linux.git

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index fc35e6bdfb93..4ef4d22e5e43 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -4,6 +4,8 @@
 #ifndef WRITEBACK_H
 #define WRITEBACK_H
 
+#include <linux/sched.h>
+
 struct backing_dev_info;
 
 extern spinlock_t inode_lock;
@@ -59,6 +61,8 @@ struct writeback_control {
 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
 	unsigned for_writepages:1;	/* This is a writepages() call */
 	unsigned range_cyclic:1;	/* range_start is cyclic */
+
+	void *fs_private;		/* For use by ->writepages() */
 };
 
 /*
@@ -84,7 +88,7 @@ static inline void wait_on_inode(struct inode *inode)
 int wakeup_pdflush(long nr_pages);
 void laptop_io_completion(void);
 void laptop_sync_completion(void);
-void throttle_vm_writeout(void);
+void throttle_vm_writeout(gfp_t gfp_mask);
 
 /* These are exported to sysctl. */
 extern int dirty_background_ratio;
@@ -109,9 +113,15 @@ 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);