From: "Luis R. Rodriguez" <mcgrof@kernel.org>
To: akpm@linux-foundation.org, jeyu@redhat.com, shuah@kernel.org,
rusty@rustcorp.com.au, ebiederm@xmission.com,
dmitry.torokhov@gmail.com, acme@redhat.com, corbet@lwn.net
Cc: martin.wilck@suse.com, mmarek@suse.com, pmladek@suse.com,
hare@suse.com, rwright@hpe.com, jeffm@suse.com, DSterba@suse.com,
fdmanana@suse.com, neilb@suse.com, linux@roeck-us.net,
rgoldwyn@suse.com, subashab@codeaurora.org, xypron.glpk@gmx.de,
keescook@chromium.org, atomlin@redhat.com, mbenes@suse.cz,
paulmck@linux.vnet.ibm.com, dan.j.williams@intel.com,
jpoimboe@redhat.com, davem@davemloft.net, mingo@redhat.com,
alan@linux.intel.com, tytso@mit.edu, gregkh@linuxfoundation.org,
torvalds@linux-foundation.org, linux-kselftest@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
"Luis R. Rodriguez" <mcgrof@kernel.org>
Subject: [PATCH v2 0/5] kmod: help make deterministic
Date: Thu, 25 May 2017 17:16:25 -0700 [thread overview]
Message-ID: <20170526001630.19203-1-mcgrof@kernel.org> (raw)
In-Reply-To: <20170519032444.18416-1-mcgrof@kernel.org>
On this v2 I'm following Dmitry Torokhov's recommendation from the v1 series
[0] and I stop dancing around with work arounds and try to go straight for what
I think should be a proper fix for kmod: throttle instead of failing when kmod
max concurrent threshold is reached.
This patch series depends on the unsigned int range proc sysctl changes which
Andrew Morton recently merged into his -mm tree [1].
The kmod stress test driver uses a new license (GPL on Linux, copyleft-next
outside of Linux). Linus was fine with the copyleft-next so long as it was
clear GPL applies to Linux [2] and an or clause was used if I wanted to use
copyleft-next. Later based on discussions with Alan and Ted ironed out an "or"
language clause to use [3].
All code is also available on my 20170525-kmod-throttle branch of my linux-next
tree based on tag next-20170525 [4].
If there are any questions please let me know.
[0] https://lkml.kernel.org/r/20170519032444.18416-1-mcgrof@kernel.org
[1] https://lkml.kernel.org/r/20170519033554.18592-1-mcgrof@kernel.org
[2] https://lkml.kernel.org/r/CA+55aFyhxcvD+q7tp+-yrSFDKfR0mOHgyEAe=f_94aKLsOu0Og@mail.gmail.com
[3] https://lkml.kernel.org/r/1495234558.7848.122.camel@linux.intel.com
[4] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?h=20170525-kmod-throttle
Luis
Luis R. Rodriguez (5):
module: use list_for_each_entry_rcu() on find_module_all()
kmod: reduce atomic operations on kmod_concurrent
kmod: add test driver to stress test the module loader
kmod: add helpers for getting kmod limit
kmod: throttle kmod thread limit
Documentation/sysctl/kernel.txt | 20 +
include/linux/kmod.h | 7 +
init/main.c | 1 +
kernel/kmod.c | 92 ++-
kernel/module.c | 2 +-
kernel/sysctl.c | 7 +
lib/Kconfig.debug | 25 +
lib/Makefile | 1 +
lib/test_kmod.c | 1246 +++++++++++++++++++++++++++++++++
tools/testing/selftests/kmod/Makefile | 11 +
tools/testing/selftests/kmod/config | 7 +
tools/testing/selftests/kmod/kmod.sh | 615 ++++++++++++++++
12 files changed, 2004 insertions(+), 30 deletions(-)
create mode 100644 lib/test_kmod.c
create mode 100644 tools/testing/selftests/kmod/Makefile
create mode 100644 tools/testing/selftests/kmod/config
create mode 100755 tools/testing/selftests/kmod/kmod.sh
--
2.11.0
next prev parent reply other threads:[~2017-05-26 0:16 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-19 3:24 [PATCH 0/6] kmod: few simple enhancements Luis R. Rodriguez
2017-05-19 3:24 ` [PATCH 1/6] kmod: add dynamic max concurrent thread count Luis R. Rodriguez
2017-05-19 20:44 ` Dmitry Torokhov
[not found] ` <CAB=NE6XGL24O+JfTNUG0HO4obhDc-v+HyL0SCrQELiZrj2-qNw@mail.gmail.com>
[not found] ` <CAB=NE6Wa4Nemh80yaCCwbjrNRLPD+GJMncg12APg9Vq63AWVng@mail.gmail.com>
[not found] ` <CAB=NE6Vc6RDAytn2Pkv2V58HFo8ncR0eOHZ3===kbZ2NF78ubg@mail.gmail.com>
[not found] ` <CAB=NE6Vqmx=y6muenpuQKynTP=pGWMF8tzoCA0BXD6d63q9wPg@mail.gmail.com>
2017-05-19 21:58 ` Dmitry Torokhov
2017-05-25 16:22 ` Luis R. Rodriguez
2017-05-25 16:38 ` Dmitry Torokhov
2017-05-25 16:50 ` Luis R. Rodriguez
2017-05-25 17:30 ` Dmitry Torokhov
2017-05-25 17:38 ` Luis R. Rodriguez
2017-05-25 18:06 ` Luis R. Rodriguez
2017-05-25 18:26 ` Dmitry Torokhov
2017-05-25 19:01 ` Luis R. Rodriguez
2017-05-25 21:38 ` Luis R. Rodriguez
2017-05-19 3:24 ` [PATCH 2/6] module: use list_for_each_entry_rcu() on find_module_all() Luis R. Rodriguez
2017-05-23 14:46 ` Miroslav Benes
2017-05-19 3:24 ` [PATCH 3/6] kmod: provide wrappers for kmod_concurrent inc/dec Luis R. Rodriguez
2017-05-19 3:24 ` [PATCH 4/6] kmod: return -EBUSY if modprobe limit is reached Luis R. Rodriguez
2017-05-19 3:24 ` [PATCH 5/6] kmod: preempt on kmod_umh_threads_get() Luis R. Rodriguez
2017-05-19 22:27 ` Dmitry Torokhov
2017-05-25 0:14 ` Luis R. Rodriguez
2017-05-25 0:45 ` Dmitry Torokhov
2017-05-25 1:00 ` Luis R. Rodriguez
2017-05-25 2:27 ` Dmitry Torokhov
2017-05-25 11:19 ` Petr Mladek
2017-05-25 15:38 ` Luis R. Rodriguez
2017-05-25 16:42 ` Dmitry Torokhov
2017-05-25 15:18 ` Jessica Yu
2017-05-19 3:24 ` [PATCH 6/6] kmod: use simplified rate limit printk Luis R. Rodriguez
2017-05-19 22:23 ` Dmitry Torokhov
2017-05-23 9:00 ` Petr Mladek
2017-05-26 0:16 ` Luis R. Rodriguez [this message]
2017-05-26 0:16 ` [PATCH v2 1/5] module: use list_for_each_entry_rcu() on find_module_all() Luis R. Rodriguez
2017-05-26 0:16 ` [PATCH v2 2/5] kmod: reduce atomic operations on kmod_concurrent Luis R. Rodriguez
2017-05-26 1:11 ` Dmitry Torokhov
2017-05-26 20:03 ` Luis R. Rodriguez
2017-05-26 0:16 ` [PATCH v2 3/5] kmod: add test driver to stress test the module loader Luis R. Rodriguez
2017-05-26 0:16 ` [PATCH v2 4/5] kmod: add helpers for getting kmod limit Luis R. Rodriguez
2017-05-26 0:56 ` Dmitry Torokhov
2017-05-26 20:27 ` Luis R. Rodriguez
2017-05-26 0:16 ` [PATCH v2 5/5] kmod: throttle kmod thread limit Luis R. Rodriguez
2017-05-26 21:12 ` [PATCH v3 0/4] kmod: help make deterministic Luis R. Rodriguez
2017-05-26 21:12 ` [PATCH v3 1/4] module: use list_for_each_entry_rcu() on find_module_all() Luis R. Rodriguez
2017-05-26 21:12 ` [PATCH v3 2/4] kmod: reduce atomic operations on kmod_concurrent and simplify Luis R. Rodriguez
2017-06-23 19:19 ` [PATCH v4 " Luis R. Rodriguez
2017-06-26 11:36 ` [PATCH v3 " Petr Mladek
2017-05-26 21:12 ` [PATCH v3 3/4] kmod: add test driver to stress test the module loader Luis R. Rodriguez
2017-05-26 21:12 ` [PATCH v3 4/4] kmod: throttle kmod thread limit Luis R. Rodriguez
2017-06-22 15:19 ` Petr Mladek
2017-06-23 16:16 ` Luis R. Rodriguez
2017-06-23 17:56 ` Luis R. Rodriguez
2017-06-23 19:16 ` Luis R. Rodriguez
2017-06-26 10:03 ` Petr Mladek
2017-06-26 9:55 ` Petr Mladek
2017-06-23 19:20 ` [PATCH v4 " Luis R. Rodriguez
2017-06-26 11:38 ` Petr Mladek
2017-06-28 22:11 ` Luis R. Rodriguez
2017-06-20 20:56 ` [PATCH v3 0/4] kmod: help make deterministic Luis R. Rodriguez
2017-06-21 0:23 ` Kees Cook
2017-06-26 21:37 ` Jessica Yu
2017-06-26 22:44 ` Luis R. Rodriguez
2017-06-27 0:27 ` Luis R. Rodriguez
2017-06-27 8:13 ` Petr Mladek
2017-06-27 10:04 ` Jessica Yu
2017-06-27 15:26 ` Jessica Yu
2017-06-28 0:49 ` Luis R. Rodriguez
2017-06-28 22:31 ` [PATCH v4 0/3] " Luis R. Rodriguez
2017-06-28 22:31 ` [PATCH v4 1/3] MAINTAINERS: give kmod some maintainer love Luis R. Rodriguez
2017-06-28 22:31 ` [PATCH v4 2/3] kmod: add test driver to stress test the module loader Luis R. Rodriguez
2017-06-28 22:31 ` [PATCH v4 3/3] kmod: throttle kmod thread limit Luis R. Rodriguez
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