Commit dd461af6 authored by Bijan Mottahedeh's avatar Bijan Mottahedeh Committed by Jens Axboe
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io_uring: use proper references for fallback_req locking 



Use ctx->fallback_req address for test_and_set_bit_lock() and
clear_bit_unlock().

Signed-off-by: default avatarBijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 490e8967

fs/io_uring.c

+2 −2
Original line number Diff line number Diff line
@@ -1295,7 +1295,7 @@ static struct io_kiocb *io_get_fallback_req(struct io_ring_ctx *ctx) 
	struct io_kiocb *req;



	req = ctx->fallback_req;

	if (!test_and_set_bit_lock(0, (unsigned long *) ctx->fallback_req))

	if (!test_and_set_bit_lock(0, (unsigned long *) &ctx->fallback_req))

		return req;



	return NULL;
@@ -1382,7 +1382,7 @@ static void __io_free_req(struct io_kiocb *req) 
	if (likely(!io_is_fallback_req(req)))

		kmem_cache_free(req_cachep, req);

	else

		clear_bit_unlock(0, (unsigned long *) req->ctx->fallback_req);

		clear_bit_unlock(0, (unsigned long *) &req->ctx->fallback_req);

}



struct req_batch {