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From: Lorenzo Colitti <lorenzo@google.com>
To: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: "Eric Dumazet" <eric.dumazet@gmail.com>,
	"Stephen Hemminger" <stephen@networkplumber.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"Eric Dumazet" <edumazet@google.com>,
	"Erik Kline" <ek@google.com>,
	"Maciej Żenczykowski" <maze@google.com>,
	"Dmitry Torokhov" <dtor@google.com>
Subject: Re: Add a SOCK_DESTROY operation to close sockets from userspace
Date: Wed, 18 Nov 2015 19:47:21 +0900	[thread overview]
Message-ID: <CAKD1Yr0Gpr6Ex2i1TXEWyETn48P4g5vBvFZ9=_g+Lz_7-PqBDQ@mail.gmail.com> (raw)
In-Reply-To: <1447841988.834928.443071345.1AAFF2A9@webmail.messagingengine.com>

On Wed, Nov 18, 2015 at 7:19 PM, Hannes Frederic Sowa
<hannes@stressinduktion.org> wrote:
> I bet there will soon be a timewaitd which handles the not configurable
> (David has rejected all those patches so far) timeout of TIME_WAIT
> sockets. And I bet it will be used. :/

No, SOCK_DESTROY has no effect on TCP_TIME_WAIT sockets or any other
non-full socket.

When called on any socket where sk_fullsock(sk) is false, it returns
EOPNOTSUPP because there is nothing to do. Its purpose is to interrupt
blocked userspace socket calls, not to release resources.

  reply	other threads:[~2015-11-18 10:47 UTC|newest]

Thread overview: 110+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-18  1:43 Add a SOCK_DESTROY operation to close sockets from userspace Lorenzo Colitti
2015-11-18  1:43 ` [PATCH 1/4] net: diag: split inet_diag_dump_one_icsk into two Lorenzo Colitti
2015-11-18  1:43 ` [PATCH 2/4] net: diag: Add the ability to destroy a socket from userspace Lorenzo Colitti
2015-11-18  1:43 ` [PATCH 3/4] net: diag: Support SOCK_DESTROY for inet sockets Lorenzo Colitti
2015-11-18  1:43 ` [PATCH 4/4] net: diag: Support destroying TCP sockets Lorenzo Colitti
2015-11-18  3:43   ` kbuild test robot
2015-11-18  4:46     ` Lorenzo Colitti
2015-11-18  4:25   ` kbuild test robot
2015-11-18  3:27 ` Add a SOCK_DESTROY operation to close sockets from userspace Stephen Hemminger
     [not found]   ` <CAAedzxqiXnKzCyevNipNnXEc_+TEjnVphLfseTo4ykZ8SAVt_w@mail.gmail.com>
2015-11-18  3:36     ` Erik Kline
2015-11-18  3:57   ` Maciej Żenczykowski
2015-11-18 11:56     ` David Laight
2015-11-18  4:04   ` Eric Dumazet
2015-11-18 10:19     ` Hannes Frederic Sowa
2015-11-18 10:47       ` Lorenzo Colitti [this message]
2015-11-18 11:19         ` Hannes Frederic Sowa
2015-11-18 12:54           ` Eric Dumazet
2015-11-18 13:04           ` Lorenzo Colitti
2015-11-18 13:31             ` Hannes Frederic Sowa
2015-11-18 14:45               ` Lorenzo Colitti
2015-11-18 14:56                 ` Hannes Frederic Sowa
2015-11-18 15:16                   ` Eric Dumazet
2015-11-18 15:32                     ` Hannes Frederic Sowa
2015-11-18 15:33                       ` Hannes Frederic Sowa
2015-11-18 20:35         ` David Miller
2015-11-18 20:43           ` Hannes Frederic Sowa
2015-11-19  3:49             ` David Miller
2015-11-19  5:12               ` Tom Herbert
2015-11-19 15:54                 ` Hannes Frederic Sowa
2015-11-19 23:54                   ` Maciej Żenczykowski
2015-11-19  5:13               ` Lorenzo Colitti
2015-11-19  5:53                 ` David Miller
2015-11-19  7:19                   ` Maciej Żenczykowski
2015-11-19 15:48                     ` David Miller
2015-11-19 16:19                       ` Eric Dumazet
2015-11-19 16:33                         ` David Miller
2015-11-19 16:43                           ` Eric Dumazet
2015-11-19 16:50                             ` David Miller
2015-11-19 16:47                           ` Eric Dumazet
2015-11-19 17:02                             ` David Miller
2015-11-19 17:44                               ` Eric Dumazet
2015-11-19 22:55                           ` Lorenzo Colitti
2015-11-19 17:08                         ` Hannes Frederic Sowa
2015-11-19 17:38                           ` Tom Herbert
2015-11-19 18:09                             ` David Miller
2015-11-19 18:27                               ` Hannes Frederic Sowa
2015-11-19 23:02                                 ` Hannes Frederic Sowa
2015-11-19 23:47                                   ` Lorenzo Colitti
2015-11-19 22:33                             ` Lorenzo Colitti
2015-11-19 22:38                               ` Hannes Frederic Sowa
2015-11-19 23:24                                 ` Tom Herbert
2015-11-19 21:29                         ` Tom Herbert
2015-11-19 21:41                           ` Eric Dumazet
2015-11-19 21:53                             ` Hannes Frederic Sowa
2015-11-19 22:04                               ` Eric Dumazet
2015-11-19 22:09                                 ` Hannes Frederic Sowa
2015-11-19 22:15                                   ` Eric Dumazet
2015-11-19 22:31                                     ` Hannes Frederic Sowa
2015-11-19 22:36                                       ` Eric Dumazet
2015-11-19 21:53                             ` Tom Herbert
2015-11-19 22:07                               ` Eric Dumazet
2015-11-19 22:14                                 ` Tom Herbert
2015-11-19 22:33                                   ` Eric Dumazet
2015-11-20  0:04                                     ` Tom Herbert
2015-11-20  0:09                                       ` Lorenzo Colitti
2015-11-20  0:15                                         ` Tom Herbert
2015-11-20  2:25                                           ` Maciej Żenczykowski
2015-12-01  2:32                                             ` Lorenzo Colitti
2015-12-01  2:32                                               ` [PATCH v3 1/4] net: diag: split inet_diag_dump_one_icsk into two Lorenzo Colitti
2015-12-01  2:32                                               ` [PATCH v3 2/4] net: diag: Add the ability to destroy a socket from userspace Lorenzo Colitti
2015-12-01  2:32                                               ` [PATCH v3 3/4] net: diag: Support SOCK_DESTROY for inet sockets Lorenzo Colitti
2015-12-01  2:32                                               ` [PATCH v3 4/4] net: diag: Support destroying TCP sockets Lorenzo Colitti
2015-12-01  6:23                                                 ` kbuild test robot
2015-12-01  7:12                                                   ` Lorenzo Colitti
2015-12-01  2:53                                               ` Add a SOCK_DESTROY operation to close sockets from userspace Tom Herbert
2015-12-02 15:18                                                 ` Lorenzo Colitti
2015-12-02 16:12                                                   ` Tom Herbert
2015-12-02 16:30                                                     ` Lorenzo Colitti
2015-12-02 17:09                                                       ` Tom Herbert
2015-12-14 17:29                                                     ` Lorenzo Colitti
2015-12-14 17:29                                                       ` [PATCH v5 1/4] net: diag: Add the ability to destroy a socket Lorenzo Colitti
2015-12-14 17:29                                                       ` [PATCH v5 2/4] net: diag: split inet_diag_dump_one_icsk into two Lorenzo Colitti
2015-12-14 17:29                                                       ` [PATCH v5 3/4] net: diag: Support SOCK_DESTROY for inet sockets Lorenzo Colitti
2015-12-14 17:29                                                       ` [PATCH v5 4/4] net: diag: Support destroying TCP sockets Lorenzo Colitti
2015-12-14 17:51                                                         ` kbuild test robot
2015-12-14 17:52                                                         ` Tom Herbert
2015-12-14 18:03                                                         ` Eric Dumazet
2015-12-14 19:37                                                         ` David Miller
2015-12-15 17:17                                                           ` [PATCH v5 4/4] net: diag: Support destroying TCP socketsr Lorenzo Colitti
2015-12-15 17:17                                                             ` [PATCH v6 1/4] net: diag: split inet_diag_dump_one_icsk into two Lorenzo Colitti
2015-12-15 17:44                                                               ` Eric Dumazet
2015-12-15 17:17                                                             ` [PATCH v6 2/4] net: diag: Add the ability to destroy a socket Lorenzo Colitti
2015-12-15 17:44                                                               ` Eric Dumazet
2015-12-15 17:17                                                             ` [PATCH v6 3/4] net: diag: Support SOCK_DESTROY for inet sockets Lorenzo Colitti
2015-12-15 17:45                                                               ` Eric Dumazet
2015-12-15 17:17                                                             ` [PATCH v6 4/4] net: diag: Support destroying TCP sockets Lorenzo Colitti
2015-12-15 17:46                                                               ` Eric Dumazet
2015-12-15 18:36                                                             ` [PATCH v5 4/4] net: diag: Support destroying TCP socketsr Maciej Żenczykowski
2015-12-15 18:46                                                               ` Rustad, Mark D
2015-12-15 18:38                                                             ` David Miller
2015-11-20  0:12                         ` Add a SOCK_DESTROY operation to close sockets from userspace Maciej Żenczykowski
2015-11-20  0:19                   ` Lorenzo Colitti
2015-11-20  0:55                     ` David Miller
2015-11-20  1:00                       ` Maciej Żenczykowski
2015-11-20  1:55                       ` Lorenzo Colitti
2015-11-20 16:51                         ` David Ahern
2015-11-18  3:56 ` Tom Herbert
2015-11-18  4:23   ` Lorenzo Colitti
2015-11-18  4:31     ` Tom Herbert
2015-11-18 10:12 ` Hannes Frederic Sowa

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