From: Oleg Nesterov <oleg@redhat.com>
To: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Anton Arapov <anton@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/7] uprobes: register/unregister preparations for filtering
Date: Fri, 23 Nov 2012 21:27:41 +0100 [thread overview]
Message-ID: <20121123202741.GA18858@redhat.com> (raw)
Hello.
Srikar, it is not clear if you was convinced or not during the
last discussion. We will discuss this again probably. So far
I am sending the initial changes which (I think) make sense in
any case. Please review.
The next step is locking. Alas, we can not use consumer_rwsem
to protect the list in filter_chain(). Whatever we do, at least
uprobe_mmap() needs to do this under mm->mmap_sem. And we do
want to allow uc->handler() to play with current->mm.
Then we will actually immplement filter_chain(), this should be
trivial unless you insist we need for_each_mm_user() (cough, I
hope you do not ;).
Then we will try to solve the problem with fork.
Oleg.
next reply other threads:[~2012-11-23 20:28 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-23 20:27 Oleg Nesterov [this message]
2012-11-23 20:28 ` [PATCH 1/7] uprobes: Move __set_bit(UPROBE_SKIP_SSTEP) into alloc_uprobe() Oleg Nesterov
2012-12-10 5:56 ` Srikar Dronamraju
2012-11-23 20:28 ` [PATCH 2/7] uprobes: Kill the "uprobe != NULL" check in uprobe_unregister() Oleg Nesterov
2012-12-10 6:00 ` Srikar Dronamraju
2012-11-23 20:28 ` [PATCH 3/7] uprobes: Kill the pointless inode/uc checks in register/unregister Oleg Nesterov
2012-12-10 6:19 ` Srikar Dronamraju
2012-12-10 19:12 ` Oleg Nesterov
2012-12-13 10:35 ` Srikar Dronamraju
2012-12-13 13:15 ` Oleg Nesterov
2012-12-13 14:08 ` Srikar Dronamraju
2012-12-13 14:12 ` Srikar Dronamraju
2012-11-23 20:28 ` [PATCH 4/7] uprobes: Kill uprobe_consumer->filter() Oleg Nesterov
2012-12-10 12:02 ` Srikar Dronamraju
2012-11-23 20:28 ` [PATCH 5/7] uprobes: Introduce filter_chain() Oleg Nesterov
2012-11-24 16:08 ` Oleg Nesterov
2012-12-10 12:04 ` Srikar Dronamraju
2012-11-23 20:28 ` [PATCH 6/7] uprobes: _unregister() should always do register_for_each_vma(false) Oleg Nesterov
2012-11-23 20:28 ` [PATCH 7/7] uprobes: _register() should always do register_for_each_vma(true) Oleg Nesterov
2012-12-13 10:26 ` Srikar Dronamraju
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