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-rw-r--r--drivers/md/bcache/writeback.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 71801c086b82..5397a2c5d6cc 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -459,10 +459,8 @@ static void read_dirty(struct cached_dev *dc)
for (i = 0; i < nk; i++) {
w = keys[i];
- io = kzalloc(sizeof(struct dirty_io) +
- sizeof(struct bio_vec) *
- DIV_ROUND_UP(KEY_SIZE(&w->key),
- PAGE_SECTORS),
+ io = kzalloc(struct_size(io, bio.bi_inline_vecs,
+ DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS)),
GFP_KERNEL);
if (!io)
goto err;