[PATCH] mm: page-writeback: export dirty_expire_interval, used byext4

[Kevin Hilman]

commit 533ec0ed (ext4: avoid reusing recently deleted inodes in no
journal mode) started using dirty_expire_inteval, which is not
available to modules.  Make it available to modules.

Cc: "Theodore Ts'o" <tytso@xxxxxxx>
Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxx>
---
 mm/page-writeback.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index d374b29..c8b61ef 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -104,6 +104,8 @@ EXPORT_SYMBOL_GPL(dirty_writeback_interval);
  */
 unsigned int dirty_expire_interval = 30 * 100; /* centiseconds */
 
+EXPORT_SYMBOL_GPL(dirty_expire_interval);
+
 /*
  * Flag that makes the machine dump writes/reads and block dirtyings.
  */
-- 
1.8.3

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