Export symbol of writeback_single_inode() in order to call it
from overlayfs' ->writepages when sync single inode.
Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxxxx>
---
fs/fs-writeback.c | 3 ++-
include/linux/writeback.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 657cceb..4fed058 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1529,7 +1529,7 @@ static void requeue_inode(struct inode *inode, struct bdi_writeback *wb,
* we go e.g. from filesystem. Flusher thread uses __writeback_single_inode()
* and does more profound writeback list handling in writeback_sb_inodes().
*/
-static int writeback_single_inode(struct inode *inode,
+int writeback_single_inode(struct inode *inode,
struct writeback_control *wbc)
{
struct bdi_writeback *wb;
@@ -1585,6 +1585,7 @@ static int writeback_single_inode(struct inode *inode,
spin_unlock(&inode->i_lock);
return ret;
}
+EXPORT_SYMBOL(writeback_single_inode);
static long writeback_chunk_size(struct bdi_writeback *wb,
struct wb_writeback_work *work)
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 8e5c5bb..78e3b10 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -403,4 +403,5 @@ void tag_pages_for_writeback(struct address_space *mapping,
void sb_mark_inode_writeback(struct inode *inode);
void sb_clear_inode_writeback(struct inode *inode);
+int writeback_single_inode(struct inode *inode, struct writeback_control *wbc);
#endif /* WRITEBACK_H */
--
1.8.3.1
