Paolo Abeni
6c206b2009
udp: fix rx queue len reported by diag and proc interface
...
After commit 6b229cf77d68 ("udp: add batching to udp_rmem_release()")
the sk_rmem_alloc field does not measure exactly anymore the
receive queue length, because we batch the rmem release. The issue
is really apparent only after commit 0d4a6608f68c ("udp: do rmem bulk
free even if the rx sk queue is empty"): the user space can easily
check for an empty socket with not-0 queue length reported by the 'ss'
tool or the procfs interface.
We need to use a custom UDP helper to report the correct queue length,
taking into account the forward allocation deficit.
Reported-by: trevor.francis@46labs.com
Fixes: 6b229cf77d68 ("UDP: add batching to udp_rmem_release()")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-08 19:55:15 -04:00
..
2017-07-11 06:08:58 -04:00
2018-06-06 18:39:49 -07:00
2018-01-19 14:02:12 -05:00
2018-05-26 09:16:44 +02:00
2018-06-03 01:18:37 +02:00
2018-06-01 09:46:22 +02:00
2017-04-05 10:15:20 +02:00
2018-05-16 07:24:30 +02:00
2018-06-06 18:39:49 -07:00
2018-01-23 19:51:46 -05:00
2017-04-12 22:02:36 +02:00
2018-03-23 21:52:19 -04:00
2018-05-29 10:12:45 -04:00
2018-03-27 23:03:00 +01:00
2017-11-02 11:10:55 +01:00
2017-10-05 18:44:17 -07:00
2017-11-02 11:10:55 +01:00
2018-01-15 14:53:43 -05:00
2017-11-02 11:10:55 +01:00
2018-05-16 07:23:35 +02:00
2018-04-19 16:11:11 -04:00
2017-05-27 18:51:41 -04:00
2018-05-16 12:15:11 -04:00
2018-05-26 09:16:44 +02:00
2017-07-04 22:35:16 +01:00
2018-05-23 11:21:35 +02:00
2017-01-20 12:12:13 -05:00
2017-07-04 01:29:04 -07:00
2018-04-02 20:16:17 +02:00
2017-11-02 11:10:55 +01:00
2018-05-24 14:22:59 -07:00
2018-06-05 12:32:37 -04:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2017-10-18 12:39:36 +01:00
2017-11-30 09:54:25 -05:00
2017-11-04 09:26:51 +09:00
2018-05-11 12:03:06 -04:00
2017-11-02 11:10:55 +01:00
2018-03-05 12:52:45 -05:00
2017-11-04 09:26:51 +09:00
2017-11-02 11:10:55 +01:00
2018-03-05 12:52:45 -05:00
2018-05-20 18:31:42 -04:00
2017-11-02 11:10:55 +01:00
2018-02-28 11:43:28 -05:00
2018-05-28 22:59:54 -04:00
2017-11-01 11:50:43 +09:00
2018-04-23 10:21:24 -04:00
2017-11-02 11:10:55 +01:00
2018-05-11 20:53:22 -04:00
2018-03-04 13:04:23 -05:00
2017-11-02 11:10:55 +01:00
2017-10-30 21:09:24 +09:00
2017-10-11 09:49:34 +02:00
2017-11-02 11:10:55 +01:00
2017-12-08 13:32:26 -05:00
2017-11-16 10:49:00 +09:00
2017-11-02 11:10:55 +01:00
2018-02-27 14:46:26 -05:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2017-12-11 14:10:06 -05:00
2017-11-02 11:10:55 +01:00
2018-02-22 21:13:02 +01:00
2018-05-29 10:12:45 -04:00
2018-04-22 21:12:00 -04:00
2017-01-18 13:04:28 -05:00
2017-08-07 11:39:22 -07:00
2018-03-31 02:15:43 +02:00
2018-05-10 17:43:55 -04:00
2017-11-04 09:26:51 +09:00
2018-03-31 23:25:39 -04:00
2017-12-03 10:18:28 -05:00
2018-04-26 15:08:04 -04:00
2018-06-05 10:45:24 -04:00
2017-11-02 11:10:55 +01:00
2018-06-06 18:39:49 -07:00
2018-05-24 22:20:51 -04:00
2017-12-15 12:34:00 -05:00
2018-05-22 10:51:09 +02:00
2018-05-10 15:13:33 -04:00
2018-06-06 18:39:49 -07:00
2018-05-23 15:14:12 -04:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2018-06-04 13:21:18 -04:00
2017-11-02 11:10:55 +01:00
2018-03-27 09:51:23 +02:00
2016-08-17 19:36:23 -04:00
2016-10-13 12:05:26 -04:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2017-10-25 12:06:25 +09:00
2018-04-22 14:55:03 -04:00
2017-07-04 22:35:15 +01:00
2018-02-14 14:43:32 -05:00
2018-05-23 11:06:10 +02:00
2017-11-02 11:10:55 +01:00
2017-04-01 20:21:44 -07:00
2016-10-03 02:00:22 -04:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2018-04-25 13:19:59 -04:00
2018-05-28 22:59:54 -04:00
2018-03-29 13:47:53 -04:00
2017-11-02 11:10:55 +01:00
2018-03-04 13:04:23 -05:00
2017-07-01 07:39:09 -07:00
2017-11-02 11:10:55 +01:00
2018-05-16 07:23:35 +02:00
2018-04-07 22:32:31 -04:00
2017-11-08 16:12:33 +09:00
2017-11-02 11:10:55 +01:00
2018-05-24 18:36:15 -07:00
2018-05-16 07:23:35 +02:00
2018-05-29 09:49:16 -04:00
2018-01-16 14:56:54 -05:00
2017-11-02 11:10:55 +01:00
2017-10-01 03:55:47 +01:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2018-05-16 07:23:35 +02:00
2017-11-02 11:10:55 +01:00
2017-12-05 14:37:13 -05:00
2018-03-29 11:11:40 +02:00
2017-10-20 13:21:36 +01:00
2018-05-16 07:23:35 +02:00
2018-05-29 10:12:45 -04:00
2018-03-13 18:37:02 +02:00
2018-05-31 22:48:46 -04:00
2018-05-29 09:49:15 -04:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2016-11-09 20:40:06 -05:00
2018-05-24 11:57:35 +02:00
2018-05-24 11:57:35 +02:00
2018-04-11 10:33:46 -04:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2018-06-06 18:39:49 -07:00
2018-03-01 21:21:36 -05:00
2017-11-02 11:10:55 +01:00
2018-06-06 14:07:53 -04:00
2018-05-03 13:46:47 -04:00
2018-02-21 15:06:05 -05:00
2018-06-06 18:39:49 -07:00
2018-05-08 00:02:41 -04:00
2018-05-21 16:01:54 -04:00
2018-06-08 19:55:15 -04:00
2017-11-02 11:10:55 +01:00
2017-08-29 15:16:52 -07:00
2017-11-02 11:10:55 +01:00
2018-06-08 19:55:15 -04:00
2018-02-16 15:57:42 -05:00
2018-04-17 13:53:13 -04:00
2018-01-24 19:13:45 -05:00
2017-11-02 11:10:55 +01:00
2017-11-02 11:10:55 +01:00
2018-06-05 15:48:34 +02:00
2018-06-05 15:46:26 +02:00
2018-06-06 16:34:00 -07:00