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H A D | rnbd-clt.c | diff 52334f4a573d8a91ebe1581bac5fa8027df59221 Wed Jul 06 15:31:46 CEST 2022 Guoqing Jiang <guoqing.jiang@linux.dev> rnbd-clt: don't free rsp in msg_open_conf for map scenario
For map scenario, rsp is freed in two places:
1. msg_open_conf frees rsp if rtrs_clt_request returns 0.
2. Otherwise, rsp is freed by the call sites of rtrs_clt_request.
Now, We'd like to control full lifecycle of rsp in rnbd_clt_map_device, with that, it is feasible to pass rsp to rnbd_client_setup_device in next commit.
For 1, it is possible to free rsp from the caller of send_usr_msg because of the synchronization of iu->comp.wait. And we put iu later in rnbd_clt_map_device to ensure order of release rsp and iu.
Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev> Link: https://lore.kernel.org/r/20220706133152.12058-3-guoqing.jiang@linux.dev Signed-off-by: Jens Axboe <axboe@kernel.dk>
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