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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: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
alistair/sensors
Bijan Mottahedeh 2020-04-29 17:47:50 -07:00 committed by Jens Axboe
parent 490e89676a
commit dd461af659
1 changed files with 2 additions and 2 deletions
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4
fs/io_uring.c
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@ -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 {