From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Anton Arapov <anton@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] uprobes: simplify the usage of uprobe->pending_list
Date: Wed, 30 May 2012 23:18:58 +0530 [thread overview]
Message-ID: <20120530174858.GN15587@linux.vnet.ibm.com> (raw)
In-Reply-To: <20120530165846.GC8085@redhat.com>
* Oleg Nesterov <oleg@redhat.com> [2012-05-30 18:58:46]:
> uprobe->pending_list is only used to create the temporary list,
> it has no meaning after we drop uprobes_mmap_hash(inode).
>
> No need to initialize this node or remove it from tmp_list, and
> we can use list_for_each_entry().
I actually dont see the patch that removed the uprobe->pending_list.
I dont see it as part of the 7 that you sent yesterday. Nor does is it
part of the series that you sent today.
the uprobe_mmap_hash was required because we can do only one insert or
remove operation at a time.
How are we going to synchronize uprobe_mmap() for two different vmas
that belong two different mms but map the same inode?
May be I am missing a patch somewhere.
--
thanks and regards
Srikar
next prev parent reply other threads:[~2012-05-30 17:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 16:57 [PATCH 0/3] uprobes: misc minor changes Oleg Nesterov
2012-05-30 16:58 ` [PATCH 1/3] uprobes: install_breakpoint() should fail if is_swbp_insn() == T Oleg Nesterov
2012-05-30 17:28 ` Peter Zijlstra
2012-05-30 17:37 ` Srikar Dronamraju
2012-05-30 17:49 ` Peter Zijlstra
2012-05-30 17:54 ` Peter Zijlstra
2012-05-30 18:03 ` Peter Zijlstra
2012-05-30 18:04 ` Srikar Dronamraju
2012-05-30 18:21 ` Peter Zijlstra
2012-05-31 18:53 ` Oleg Nesterov
2012-06-01 15:53 ` Oleg Nesterov
2012-06-01 16:33 ` Srikar Dronamraju
2012-06-01 17:20 ` Oleg Nesterov
2012-06-01 18:31 ` Oleg Nesterov
2012-06-02 18:21 ` Oleg Nesterov
2012-06-01 16:47 ` Srikar Dronamraju
2012-06-01 18:38 ` Oleg Nesterov
2012-05-31 12:15 ` Peter Zijlstra
2012-05-31 12:54 ` Srikar Dronamraju
2012-05-30 16:58 ` [PATCH 2/3] uprobes: remove the unnecessary initialization in add_utask() Oleg Nesterov
2012-05-30 16:58 ` [PATCH 3/3] uprobes: simplify the usage of uprobe->pending_list Oleg Nesterov
2012-05-30 17:48 ` Srikar Dronamraju [this message]
2012-05-30 18:10 ` Oleg Nesterov
2012-05-30 18:23 ` Srikar Dronamraju
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