[patch 1/3] mm: bdi: export bdi_writeout_inc()

[Miklos Szeredi]

From: Miklos Szeredi <mszeredi@xxxxxxx>

Fuse needs this for writable mmap support.

Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
---

Index: linux/include/linux/backing-dev.h
===================================================================
--- linux.orig/include/linux/backing-dev.h	2008-02-04 12:29:01.000000000 +0100
+++ linux/include/linux/backing-dev.h	2008-02-04 13:01:23.000000000 +0100
@@ -149,6 +149,8 @@ static inline unsigned long bdi_stat_err
 int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio);
 int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
 
+extern void bdi_writeout_inc(struct backing_dev_info *bdi);
+
 /*
  * Flags in backing_dev_info::capability
  * - The first two flags control whether dirty pages will contribute to the
Index: linux/mm/page-writeback.c
===================================================================
--- linux.orig/mm/page-writeback.c	2008-02-04 12:29:01.000000000 +0100
+++ linux/mm/page-writeback.c	2008-02-04 13:01:23.000000000 +0100
@@ -168,6 +168,16 @@ static inline void __bdi_writeout_inc(st
 			      bdi->max_prop_frac);
 }
 
+void bdi_writeout_inc(struct backing_dev_info *bdi)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	__bdi_writeout_inc(bdi);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL(bdi_writeout_inc);
+
 static inline void task_dirty_inc(struct task_struct *tsk)
 {
 	prop_inc_single(&vm_dirties, &tsk->dirties);

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