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-rw-r--r--block/bio.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c
index 54ee3846c3a5..3f76a38a5e2d 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -583,6 +583,8 @@ void __bio_clone_fast(struct bio *bio, struct bio *bio_src)
bio->bi_rw = bio_src->bi_rw;
bio->bi_iter = bio_src->bi_iter;
bio->bi_io_vec = bio_src->bi_io_vec;
+
+ bio_clone_blkcg_association(bio, bio_src);
}
EXPORT_SYMBOL(__bio_clone_fast);
@@ -687,6 +689,8 @@ integrity_clone:
}
}
+ bio_clone_blkcg_association(bio, bio_src);
+
return bio;
}
EXPORT_SYMBOL(bio_clone_bioset);
@@ -2004,6 +2008,17 @@ void bio_disassociate_task(struct bio *bio)
}
}
+/**
+ * bio_clone_blkcg_association - clone blkcg association from src to dst bio
+ * @dst: destination bio
+ * @src: source bio
+ */
+void bio_clone_blkcg_association(struct bio *dst, struct bio *src)
+{
+ if (src->bi_css)
+ WARN_ON(bio_associate_blkcg(dst, src->bi_css));
+}
+
#endif /* CONFIG_BLK_CGROUP */
static void __init biovec_init_slabs(void)