Commit 8f3d7496 authored by Jens Axboe's avatar Jens Axboe

io_uring: don't re-setup vecs/iter in io_resumit_prep() is already there

If we already have mapped the necessary data for retry, then don't set
it up again. It's a pointless operation, and we leak the iovec if it's
a large (non-stack) vec.

Fixes: b63534c4 ("io_uring: re-issue block requests that failed because of resources")
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 6200b0ae
......@@ -2294,6 +2294,7 @@ static bool io_resubmit_prep(struct io_kiocb *req, int error)
goto end_req;
}
if (!req->io) {
ret = io_import_iovec(rw, req, &iovec, &iter, false);
if (ret < 0)
goto end_req;
......@@ -2301,6 +2302,9 @@ static bool io_resubmit_prep(struct io_kiocb *req, int error)
if (!ret)
return true;
kfree(iovec);
} else {
return true;
}
end_req:
req_set_fail_links(req);
io_req_complete(req, ret);
......
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