From: Bobi Jam <>

'commit 77605e41a26f ("staging/lustre/clio: add pages into writeback cache
in batches")' adds a page to a list aggregate issuing them to writeback
cache; A page add is referenced in llite/vvp io scope, while writeback
cache commit de-refers it under osc sub io scope, and enabling -lu_ref
will detect this scope mismatch.

Signed-off-by: Bobi Jam <>
Reviewed-by: frank zago <>
Reviewed-by: Jinshan Xiong <>
Reviewed-by: Oleg Drokin <>
Signed-off-by: James Simmons <>
 drivers/staging/lustre/lustre/llite/vvp_io.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c 
index 94916dc..09ccd1f 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -821,7 +821,7 @@ static void write_commit_callback(const struct lu_env *env, 
struct cl_io *io,
        cl_page_disown(env, io, page);
        /* held in ll_cl_init() */
-       lu_ref_del(&page->cp_reference, "cl_io", io);
+       lu_ref_del(&page->cp_reference, "cl_io", cl_io_top(io));
        cl_page_put(env, page);

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