From: Miklos Szeredi <mszeredi@xxxxxxx>
Fuse needs this for writable mmap support.
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
---
include/linux/backing-dev.h | 2 ++
mm/page-writeback.c | 10 ++++++++++
2 files changed, 12 insertions(+)
Index: linux/include/linux/backing-dev.h
===================================================================
--- linux.orig/include/linux/backing-dev.h 2008-03-17 18:24:13.000000000 +0100
+++ linux/include/linux/backing-dev.h 2008-03-17 18:24:36.000000000 +0100
@@ -134,6 +134,8 @@ static inline s64 bdi_stat_sum(struct ba
return sum;
}
+extern void bdi_writeout_inc(struct backing_dev_info *bdi);
+
/*
* maximal error of a stat counter.
*/
Index: linux/mm/page-writeback.c
===================================================================
--- linux.orig/mm/page-writeback.c 2008-03-17 18:24:13.000000000 +0100
+++ linux/mm/page-writeback.c 2008-03-17 18:24:36.000000000 +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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