From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> To: David Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, sashal@kernel.org, linux-sctp@vger.kernel.org Subject: Re: [PATCH] inet_diag: fix reporting cgroup classid and fallback to priority Date: Wed, 13 Feb 2019 15:28:27 +0300 [thread overview] Message-ID: <5501a69f-0888-68b9-8442-1eda4008c85c@yandex-team.ru> (raw) In-Reply-To: <20190212.103700.893095897141469287.davem@davemloft.net> On 12.02.2019 21:37, David Miller wrote: > From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> > Date: Sat, 09 Feb 2019 13:35:52 +0300 > >> Field idiag_ext in struct inet_diag_req_v2 used as bitmap of requested >> extensions has only 8 bits. Thus extensions starting from DCTCPINFO >> cannot be requested directly. Some of them included into response >> unconditionally or hook into some of lower 8 bits. >> >> Extension INET_DIAG_CLASS_ID has not way to request from the beginning. >> >> This patch bundle it with INET_DIAG_TCLASS (ipv6 tos), fixes space >> reservation, and documents behavior for other extensions. >> >> Also this patch adds fallback to reporting socket priority. This filed >> is more widely used for traffic classification because ipv4 sockets >> automatically maps TOS to priority and default qdisc pfifo_fast knows >> about that. But priority could be changed via setsockopt SO_PRIORITY so >> INET_DIAG_TOS isn't enough for predicting class. >> >> Also cgroup2 obsoletes net_cls classid (it always zero), but we cannot >> reuse this field for reporting cgroup2 id because it is 64-bit (ino+gen). >> >> So, after this patch INET_DIAG_CLASS_ID will report socket priority >> for most common setup when net_cls isn't set and/or cgroup2 in use. >> >> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> >> Fixes: 0888e372c37f ("net: inet: diag: expose sockets cgroup classid") > > Applied, and queued up for -stable. > > Please always put the Fixes: tag first in the list of tags. I fixed > it up for you this time. Ok. Never heard about that rule, checkpatch.pl doesn't complain about that too. > > Thanks. >
WARNING: multiple messages have this Message-ID (diff)
From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> To: David Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, sashal@kernel.org, linux-sctp@vger.kernel.org Subject: Re: [PATCH] inet_diag: fix reporting cgroup classid and fallback to priority Date: Wed, 13 Feb 2019 12:28:27 +0000 [thread overview] Message-ID: <5501a69f-0888-68b9-8442-1eda4008c85c@yandex-team.ru> (raw) In-Reply-To: <20190212.103700.893095897141469287.davem@davemloft.net> On 12.02.2019 21:37, David Miller wrote: > From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> > Date: Sat, 09 Feb 2019 13:35:52 +0300 > >> Field idiag_ext in struct inet_diag_req_v2 used as bitmap of requested >> extensions has only 8 bits. Thus extensions starting from DCTCPINFO >> cannot be requested directly. Some of them included into response >> unconditionally or hook into some of lower 8 bits. >> >> Extension INET_DIAG_CLASS_ID has not way to request from the beginning. >> >> This patch bundle it with INET_DIAG_TCLASS (ipv6 tos), fixes space >> reservation, and documents behavior for other extensions. >> >> Also this patch adds fallback to reporting socket priority. This filed >> is more widely used for traffic classification because ipv4 sockets >> automatically maps TOS to priority and default qdisc pfifo_fast knows >> about that. But priority could be changed via setsockopt SO_PRIORITY so >> INET_DIAG_TOS isn't enough for predicting class. >> >> Also cgroup2 obsoletes net_cls classid (it always zero), but we cannot >> reuse this field for reporting cgroup2 id because it is 64-bit (ino+gen). >> >> So, after this patch INET_DIAG_CLASS_ID will report socket priority >> for most common setup when net_cls isn't set and/or cgroup2 in use. >> >> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> >> Fixes: 0888e372c37f ("net: inet: diag: expose sockets cgroup classid") > > Applied, and queued up for -stable. > > Please always put the Fixes: tag first in the list of tags. I fixed > it up for you this time. Ok. Never heard about that rule, checkpatch.pl doesn't complain about that too. > > Thanks. >
next prev parent reply other threads:[~2019-02-13 12:28 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-02-09 10:35 [PATCH] inet_diag: fix reporting cgroup classid and fallback to priority Konstantin Khlebnikov 2019-02-09 10:35 ` Konstantin Khlebnikov 2019-02-12 18:37 ` David Miller 2019-02-12 18:37 ` David Miller 2019-02-13 12:28 ` Konstantin Khlebnikov [this message] 2019-02-13 12:28 ` Konstantin Khlebnikov 2019-02-12 23:03 ` Eric Dumazet 2019-02-12 23:03 ` Eric Dumazet
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