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Diffstat (limited to 'include/linux/writeback.h')
-rw-r--r--include/linux/writeback.h14
1 files changed, 5 insertions, 9 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d1f65adf6a26..8eb165760752 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -11,7 +11,6 @@
#include <linux/flex_proportions.h>
#include <linux/backing-dev-defs.h>
#include <linux/blk_types.h>
-#include <linux/blk-cgroup.h>
struct bio;
@@ -109,15 +108,12 @@ static inline int wbc_to_write_flags(struct writeback_control *wbc)
return flags;
}
-static inline struct cgroup_subsys_state *
-wbc_blkcg_css(struct writeback_control *wbc)
-{
#ifdef CONFIG_CGROUP_WRITEBACK
- if (wbc->wb)
- return wbc->wb->blkcg_css;
-#endif
- return blkcg_root_css;
-}
+#define wbc_blkcg_css(wbc) \
+ ((wbc)->wb ? (wbc)->wb->blkcg_css : blkcg_root_css)
+#else
+#define wbc_blkcg_css(wbc) (blkcg_root_css)
+#endif /* CONFIG_CGROUP_WRITEBACK */
/*
* A wb_domain represents a domain that wb's (bdi_writeback's) belong to