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tcp: correct code comment stating 3 min timeout for FIN_WAIT2, we only do 1 min

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As far as I can tell we have used a default of 60 seconds for
FIN_WAIT2 timeout for ages (since 2.x times??).

In any case, the timeout these days is 60 seconds, so the 3 min
comment is wrong (and cost me a few minutes of my life when I was
debugging a FIN_WAIT2 related problem in a userspace application and
checked the kernel source for details).

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Juhl 2014-02-09 23:30:32 +01:00 committed by David S. Miller
parent 0fbb8297b5
commit b10bd54c05
1 changed files with 1 additions and 1 deletions
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net/ipv4/tcp.c
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@ -2229,7 +2229,7 @@ adjudge_to_death:
/* This is a (useful) BSD violating of the RFC. There is a
* problem with TCP as specified in that the other end could
* keep a socket open forever with no application left this end.
* We use a 3 minute timeout (about the same as BSD) then kill
* We use a 1 minute timeout (about the same as BSD) then kill
* our end. If they send after that then tough - BUT: long enough
* that we won't make the old 4*rto = almost no time - whoops
* reset mistake.