git: 343bf78e4871 - main - bpf: Update a comment
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Date: Tue, 10 Sep 2024 10:04:37 UTC
The branch main has been updated by zlei: URL: https://cgit.FreeBSD.org/src/commit/?id=343bf78e487190557889c8ba53d8080b268867f7 commit 343bf78e487190557889c8ba53d8080b268867f7 Author: Zhenlei Huang <zlei@FreeBSD.org> AuthorDate: 2024-09-10 10:03:32 +0000 Commit: Zhenlei Huang <zlei@FreeBSD.org> CommitDate: 2024-09-10 10:03:32 +0000 bpf: Update a comment This comment was introduced by fix [1], later the fix was refined by change [2], and the context of the usage of `m_get2()` and `m_getjcl()` got lost, then the comment became obscure. Update to reflect the current behavior. 1. f13da24715a7 net/bpf: Fix writing of buffer bigger than PAGESIZE 2. a051ca72e281 Introduce m_get3() Fixes: a051ca72e281 Introduce m_get3() MFC after: 3 days --- sys/net/bpf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/net/bpf.c b/sys/net/bpf.c index 7983337064be..5dfa6fb30565 100644 --- a/sys/net/bpf.c +++ b/sys/net/bpf.c @@ -647,7 +647,7 @@ bpf_movein(struct uio *uio, int linktype, struct ifnet *ifp, struct mbuf **mp, if (len < hlen || len - hlen > ifp->if_mtu) return (EMSGSIZE); - /* Allocate a mbuf for our write, since m_get2 fails if len >= to MJUMPAGESIZE, use m_getjcl for bigger buffers */ + /* Allocate a mbuf, up to MJUM16BYTES bytes, for our write. */ m = m_get3(len, M_WAITOK, MT_DATA, M_PKTHDR); if (m == NULL) return (EIO);