blkcg: associate writeback bios with a blkg

[sfrench/cifs-2.6.git] / include / linux / bio.h

diff --git a/include/linux/bio.h b/include/linux/bio.h
index f13572c254a74dc7736b583a168eac8ec7cd34ce..f0438061a5a31ea89f0643fc11cba435e25fe6a5 100644 (file)
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -515,6 +515,8 @@ static inline void bio_associate_blkg_from_page(struct bio *bio,
 int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css);
 void bio_disassociate_blkg(struct bio *bio);
 void bio_associate_blkg(struct bio *bio);
+void bio_associate_blkg_from_css(struct bio *bio,
+                                struct cgroup_subsys_state *css);
 void bio_disassociate_task(struct bio *bio);
 void bio_clone_blkcg_association(struct bio *dst, struct bio *src);
 #else  /* CONFIG_BLK_CGROUP */
@@ -522,6 +524,9 @@ static inline int bio_associate_blkcg(struct bio *bio,
                        struct cgroup_subsys_state *blkcg_css) { return 0; }
 static inline void bio_disassociate_blkg(struct bio *bio) { }
 static inline void bio_associate_blkg(struct bio *bio) { }
+static inline void bio_associate_blkg_from_css(struct bio *bio,
+                                              struct cgroup_subsys_state *css)
+{ }
 static inline void bio_disassociate_task(struct bio *bio) { }
 static inline void bio_clone_blkcg_association(struct bio *dst,
                        struct bio *src) { }