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| author |   Eric Dumazet <edumazet@google.com> | 2025-05-13 19:39:12 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-05-15 11:30:08 -0700 |
| commit | ea33537d82921e71f852ea2ed985acc562125efe (patch) | |
| tree | b7bd20c601e5b232f8a9f154ffb5efa86342c89d /scripts/gdb/linux/modules.py | |
| parent | tcp: adjust rcvbuf in presence of reorders (diff) | |
| download | wireguard-linux-ea33537d82921e71f852ea2ed985acc562125efe.tar.xz wireguard-linux-ea33537d82921e71f852ea2ed985acc562125efe.zip | |
tcp: add receive queue awareness in tcp_rcv_space_adjust()
If the application can not drain fast enough a TCP socket queue,
tcp_rcv_space_adjust() can overestimate tp->rcvq_space.space.
Then sk->sk_rcvbuf can grow and hit tcp_rmem[2] for no good reason.
Fix this by taking into acount the number of available bytes.
Keeping sk->sk_rcvbuf at the right size allows better cache efficiency.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Wei Wang <weiwan@google.com>
Link: https://patch.msgid.link/20250513193919.1089692-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'scripts/gdb/linux/modules.py')
0 files changed, 0 insertions, 0 deletions