'write_pos' must be protected with 'r5l_ring_add', or it may overflow
Signed-off-by: JackieLiu <liuyun01@xxxxxxxxxx>
---
drivers/md/raid5-cache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 576c88d..6d2b1da 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -2086,7 +2086,7 @@ r5c_recovery_rewrite_data_only_stripes(struct r5l_log *log,
ctx->pos, ctx->seq);
mb = page_address(page);
offset = le32_to_cpu(mb->meta_size);
- write_pos = ctx->pos + BLOCK_SECTORS;
+ write_pos = r5l_ring_add(log, ctx->pos, BLOCK_SECTORS);
for (i = sh->disks; i--; ) {
struct r5dev *dev = &sh->dev[i];
--
2.7.4
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