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| author | Eric Dumazet <edumazet@google.com> | 2026-02-03 05:09:32 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-02-04 20:37:06 -0800 |
| commit | 309dd9942155c090b774cec29c5982922fece446 (patch) | |
| tree | bf5c471a2859aeafb0cab1b5dd893ff6feccdd78 /kernel | |
| parent | 7c1db78ff75f936e566f23af0e38ee4568a6af6b (diff) | |
tcp: split tcp_check_space() in two parts
tcp_check_space() is fat and not inlined.
Move its slow path in (out of line) __tcp_check_space()
and make tcp_check_space() an inline function for better TCP performance.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 2/2 grow/shrink: 4/0 up/down: 708/-582 (126)
Function old new delta
__tcp_check_space - 521 +521
tcp_rcv_established 1860 1916 +56
tcp_rcv_state_process 3342 3384 +42
tcp_event_new_data_sent 248 286 +38
tcp_data_snd_check 71 106 +35
__pfx___tcp_check_space - 16 +16
__pfx_tcp_check_space 16 - -16
tcp_check_space 566 - -566
Total: Before=24896373, After=24896499, chg +0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260203050932.3522221-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions