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| author | Enke Chen <[email protected]> | 2021-01-22 19:13:06 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2021-01-24 03:32:51 +0000 |
| commit | 344db93ae3ee69fc137bd6ed89a8ff1bf5b0db08 (patch) | |
| tree | 9550bba9e51fe81198e0e36c626a4d762e0487f5 /net/lapb/lapb_timer.c | |
| parent | NFC: fix resource leak when target index is invalid (diff) | |
| download | kernel-344db93ae3ee69fc137bd6ed89a8ff1bf5b0db08.tar.gz kernel-344db93ae3ee69fc137bd6ed89a8ff1bf5b0db08.zip | |
tcp: make TCP_USER_TIMEOUT accurate for zero window probes
The TCP_USER_TIMEOUT is checked by the 0-window probe timer. As the
timer has backoff with a max interval of about two minutes, the
actual timeout for TCP_USER_TIMEOUT can be off by up to two minutes.
In this patch the TCP_USER_TIMEOUT is made more accurate by taking it
into account when computing the timer value for the 0-window probes.
This patch is similar to and builds on top of the one that made
TCP_USER_TIMEOUT accurate for RTOs in commit b701a99e431d ("tcp: Add
tcp_clamp_rto_to_user_timeout() helper to improve accuracy").
Fixes: 9721e709fa68 ("tcp: simplify window probe aborting on USER_TIMEOUT")
Signed-off-by: Enke Chen <[email protected]>
Reviewed-by: Neal Cardwell <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions