From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: apw@canonical.com, arjan@linux.intel.com, fhrbata@redhat.com,
john.johansen@canonical.com, penguin-kernel@I-love.SAKURA.ne.jp,
rientjes@google.com, rusty@rustcorp.com.au, tj@kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/6] make request_module() killable
Date: Tue, 14 Feb 2012 17:47:09 +0100 [thread overview]
Message-ID: <20120214164709.GA21178@redhat.com> (raw)
As Tetsuo pointed out, request_module() is very much unfriendly wrt OOM.
It needs "a lot" of time/memory to finish while the caller is blocked in
TASK_UNINTERRUPTIBLE.
Changes:
- improve the comments a bit
- reorder the changes so that 3/6 which changes kABI can be
skipped, to simplify the backporting
- tried to test, seems to work
This series is orthogonal to kmod-avoid-deadlock-by-recursive-kmod-call.patch
(which I still think should be replaced, I'll try to return to this later).
3/6 depends on usermodehelper-use-umh_wait_proc-consistently.patch
Many thanks to Tetsuo for the discussion.
Oleg.
next reply other threads:[~2012-02-14 16:53 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 16:47 Oleg Nesterov [this message]
2012-02-14 16:47 ` [PATCH 1/6] usermodehelper: introduce umh_complete(sub_info) Oleg Nesterov
2012-02-14 16:48 ` [PATCH 2/6] usermodehelper: implement UMH_KILLABLE Oleg Nesterov
2012-02-14 16:48 ` [PATCH 3/6] usermodehelper: kill umh_wait, renumber UMH_* constants Oleg Nesterov
2012-02-15 1:09 ` Rusty Russell
2012-02-15 18:12 ` Oleg Nesterov
2012-02-14 16:48 ` [PATCH 4/6] usermodehelper: ____call_usermodehelper() doesn't need do_exit() Oleg Nesterov
2012-02-14 16:48 ` [PATCH 5/6] kmod: introduce call_modprobe() helper Oleg Nesterov
2012-02-14 16:49 ` [PATCH 6/6] kmod: make __request_module() killable Oleg Nesterov
2012-02-15 20:30 ` Andrew Morton
2012-02-16 15:04 ` Oleg Nesterov
2012-02-16 17:26 ` [PATCH 0/4] make vfork() killable Oleg Nesterov
2012-02-16 17:26 ` [PATCH 1/4] introduce complete_vfork_done() Oleg Nesterov
2012-02-17 0:35 ` Andrew Morton
2012-02-17 14:37 ` Oleg Nesterov
2012-02-16 17:27 ` [PATCH 2/4] vfork: make it killable Oleg Nesterov
2012-02-17 0:39 ` Andrew Morton
2012-02-17 14:44 ` Oleg Nesterov
2012-02-16 17:27 ` [PATCH 3/4] coredump_wait: don't call complete_vfork_done() Oleg Nesterov
2012-02-16 17:27 ` [PATCH 4/4] kill PF_STARTING Oleg Nesterov
2012-02-17 0:26 ` [PATCH 0/4] make vfork() killable Andrew Morton
2012-02-17 2:45 ` Stephen Rothwell
2012-02-17 14:46 ` Oleg Nesterov
[not found] ` <20120216173233.GF30393@redhat.com>
[not found] ` <201202172211.CGH81726.OStOJFLFHQVMFO@I-love.SAKURA.ne.jp>
[not found] ` <20120217150726.GD22440@redhat.com>
2012-02-17 18:00 ` [PATCH 0/1] hung_task: fix the broken rcu_lock_break() logic Oleg Nesterov
2012-02-17 18:00 ` [PATCH 1/1] " Oleg Nesterov
-- strict thread matches above, loose matches on Subject: below --
2012-02-14 16:46 [PATCH 0/6] make request_module() killable Oleg Nesterov
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