From dd5656e59ca7b25fb60a22f9079905ed0da5ed0c Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Wed, 30 Apr 2008 00:54:37 -0700
Subject: [PATCH] mm: bdi: export bdi_writeout_inc()
Fuse needs this for writable mmap support.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/backing-dev.h | 2 ++
mm/page-writeback.c | 10 ++++++++++
2 files changed, 12 insertions(+)
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 13ab79d992684..0a24d5550eb3a 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -135,6 +135,8 @@ static inline s64 bdi_stat_sum(struct backing_dev_info *bdi,
return sum;
}
+extern void bdi_writeout_inc(struct backing_dev_info *bdi);
+
/*
* maximal error of a stat counter.
*/
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index bbcb916190c99..c90a1e8e479f1 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -168,6 +168,16 @@ static inline void __bdi_writeout_inc(struct backing_dev_info *bdi)
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_GPL(bdi_writeout_inc);
+
static inline void task_dirty_inc(struct task_struct *tsk)
{
prop_inc_single(&vm_dirties, &tsk->dirties);
--
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