From: Oleg Nesterov <oleg@redhat.com>
To: Anton Arapov <anton@redhat.com>
Cc: Josh Stone <jistone@redhat.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
Frank Eigler <fche@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@elte.hu>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
adrian.m.negreanu@intel.com, Torsten.Polle@gmx.de
Subject: Re: [PATCH 0/7] uretprobes: return probes implementation
Date: Sat, 23 Mar 2013 19:04:43 +0100 [thread overview]
Message-ID: <20130323180443.GB4076@redhat.com> (raw)
In-Reply-To: <20130323064324.GA1960@bandura.redhat.com>
On 03/23, Anton Arapov wrote:
>
> IIUC, Oleg have stressed that perf and trace events requires
> additional code to leverage the return probes. IOW this patchset
> implements core only and to use it we need to teach the perf about
> rp_handler().
Yes,
> And I don't see why we would need additional parameter for
> rp_handler() as well.
trace_uprobe should use the same fmt = "(%lx <- %lx)" to teport
"entry <- exit" info, like trace_kprobe does.
And note that, unlike kprobe, the same function can be mmapped at
different address by different (or even the same) tasks.
But mostly I just wanted to say that yes, we will also teach
trace_uprobe to use the new feature before we ask to merge this
code.
Oleg.
next prev parent reply other threads:[~2013-03-23 18:07 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 13:08 [PATCH 0/7] uretprobes: return probes implementation Anton Arapov
2013-03-22 13:08 ` [PATCH 1/7] uretprobes: preparation patch Anton Arapov
2013-03-23 17:42 ` Oleg Nesterov
2013-03-22 13:08 ` [PATCH 2/7] uretprobes: extract fill_page() and trampoline implementation Anton Arapov
2013-03-24 14:41 ` Oleg Nesterov
2013-03-24 18:20 ` [PATCH 0/5] kmap cleanups for uretprobes (Was: extract fill_page() and trampoline implementation) Oleg Nesterov
2013-03-24 18:21 ` [PATCH 1/5] uprobes: Turn copy_opcode() into copy_from_page() Oleg Nesterov
2013-03-25 10:30 ` Anton Arapov
2013-03-26 11:59 ` Srikar Dronamraju
2013-03-24 18:21 ` [PATCH 2/5] uprobes: Change __copy_insn() to use copy_from_page() Oleg Nesterov
2013-03-25 10:31 ` Anton Arapov
2013-03-26 12:00 ` Srikar Dronamraju
2013-03-24 18:21 ` [PATCH 3/5] uprobes: Kill the unnecesary filp != NULL check in __copy_insn() Oleg Nesterov
2013-03-25 10:31 ` Anton Arapov
2013-03-26 12:00 ` Srikar Dronamraju
2013-03-24 18:21 ` [PATCH 4/5] uprobes: Introduce copy_to_page() Oleg Nesterov
2013-03-25 10:31 ` Anton Arapov
2013-03-26 12:02 ` Srikar Dronamraju
2013-03-24 18:21 ` [PATCH 5/5] uprobes: Change write_opcode() to use copy_*page() Oleg Nesterov
2013-03-25 10:31 ` Anton Arapov
2013-03-26 11:59 ` Srikar Dronamraju
2013-03-25 10:30 ` [PATCH 0/5] kmap cleanups for uretprobes (Was: extract fill_page() and trampoline implementation) Anton Arapov
2013-03-25 11:58 ` [PATCH 2/7] uretprobes: extract fill_page() and trampoline implementation Oleg Nesterov
2013-03-22 13:09 ` [PATCH 3/7] uretprobes/x86: hijack return address Anton Arapov
2013-03-24 14:59 ` Oleg Nesterov
2013-03-22 13:09 ` [PATCH 4/7] uretprobes: return probe entry, prepare_uretprobe() Anton Arapov
2013-03-22 15:02 ` Oleg Nesterov
2013-03-26 12:26 ` Anton Arapov
2013-03-26 14:34 ` Oleg Nesterov
2013-03-23 17:46 ` Oleg Nesterov
2013-03-24 15:26 ` Oleg Nesterov
2013-03-25 15:51 ` Anton Arapov
2013-03-26 8:45 ` Anton Arapov
2013-03-26 8:50 ` Anton Arapov
2013-03-22 13:09 ` [PATCH 5/7] uretprobes: return probe exit, invoke handlers Anton Arapov
2013-03-24 16:28 ` Oleg Nesterov
2013-03-25 12:31 ` Oleg Nesterov
2013-03-25 15:49 ` Anton Arapov
2013-03-25 16:38 ` Oleg Nesterov
2013-03-26 8:36 ` Anton Arapov
2013-03-22 13:09 ` [PATCH 6/7] uretprobes: limit the depth of return probe nestedness Anton Arapov
2013-03-24 16:54 ` Oleg Nesterov
2013-03-22 13:09 ` [PATCH 7/7] uretprobes: implemented, thus remove -ENOSYS Anton Arapov
2013-03-22 13:13 ` Anton Arapov
2013-03-22 13:09 ` [PATCH 7/7] uretprobes: remove -ENOSYS as return probes implemented Anton Arapov
2013-03-22 15:10 ` [PATCH 0/7] uretprobes: return probes implementation Oleg Nesterov
2013-03-22 21:40 ` Josh Stone
2013-03-23 6:43 ` Anton Arapov
2013-03-23 18:04 ` Oleg Nesterov [this message]
2013-03-23 17:56 ` Oleg Nesterov
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