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-rw-r--r--io_uring/io_uring.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 679bea7c41a6..249cab9c86d1 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -2374,7 +2374,9 @@ static bool io_get_sqe(struct io_ring_ctx *ctx, const struct io_uring_sqe **sqe)
}
/* drop invalid entries */
+ spin_lock(&ctx->completion_lock);
ctx->cq_extra--;
+ spin_unlock(&ctx->completion_lock);
WRITE_ONCE(ctx->rings->sq_dropped,
READ_ONCE(ctx->rings->sq_dropped) + 1);
return false;