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authorNikita V. Shirokov <tehnerd@tehnerd.com>2020-10-09 07:03:25 +0000
committerDaniel Borkmann <daniel@iogearbox.net>2020-10-09 17:12:03 +0200
commiteca43ee6c46db92dd850ce659316b0680d70e137 (patch)
treee5c85ee2588c031f26a63176495f45654168f3c5 /net
parentc3f01fdcedf9459b2a27b22287414ab3a0d5d818 (diff)
bpf: Add tcp_notsent_lowat bpf setsockopt
Adding support for TCP_NOTSENT_LOWAT sockoption (https://lwn.net/Articles/560082/) in tcp bpf programs. Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201009070325.226855-1-tehnerd@tehnerd.com
Diffstat (limited to 'net')
-rw-r--r--net/core/filter.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index 05df73780dd3..5da44b11e1ec 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4827,6 +4827,10 @@ static int _bpf_setsockopt(struct sock *sk, int level, int optname,
else
icsk->icsk_user_timeout = val;
break;
+ case TCP_NOTSENT_LOWAT:
+ tp->notsent_lowat = val;
+ sk->sk_write_space(sk);
+ break;
default:
ret = -EINVAL;
}