Messages in this thread Patch in this message | | | From | Christoph Hellwig <> | Subject | [PATCH 03/14] bpfilter: switch to kernel_write | Date | Wed, 24 Jun 2020 18:13:24 +0200 |
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While pipes don't really need sb_writers projection, __kernel_write is an interface better kept private, and the additional rw_verify_area does not hurt here.
Signed-off-by: Christoph Hellwig <hch@lst.de> --- net/bpfilter/bpfilter_kern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/bpfilter/bpfilter_kern.c b/net/bpfilter/bpfilter_kern.c index c0f0990f30b604..1905e01c3aa9a7 100644 --- a/net/bpfilter/bpfilter_kern.c +++ b/net/bpfilter/bpfilter_kern.c @@ -50,7 +50,7 @@ static int __bpfilter_process_sockopt(struct sock *sk, int optname, req.len = optlen; if (!bpfilter_ops.info.pid) goto out; - n = __kernel_write(bpfilter_ops.info.pipe_to_umh, &req, sizeof(req), + n = kernel_write(bpfilter_ops.info.pipe_to_umh, &req, sizeof(req), &pos); if (n != sizeof(req)) { pr_err("write fail %zd\n", n); -- 2.26.2
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