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-rw-r--r--include/linux/backing-dev.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 0c8342747cab..5b7d12b40d5e 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -136,6 +136,19 @@ static inline bool mapping_can_writeback(struct address_space *mapping)
return inode_to_bdi(mapping->host)->capabilities & BDI_CAP_WRITEBACK;
}
+/* Must not be used by file systems that support cgroup writeback */
+static inline int bdi_wb_dirty_exceeded(struct backing_dev_info *bdi)
+{
+ return bdi->wb.dirty_exceeded;
+}
+
+/* Must not be used by file systems that support cgroup writeback */
+static inline void bdi_wb_stat_mod(struct inode *inode, enum wb_stat_item item,
+ s64 amount)
+{
+ wb_stat_mod(&inode_to_bdi(inode)->wb, item, amount);
+}
+
#ifdef CONFIG_CGROUP_WRITEBACK
struct bdi_writeback *wb_get_lookup(struct backing_dev_info *bdi,