From: "Liam R. Howlett" <Liam.Howlett@oracle.com>
To: Andrii Nakryiko <andrii@kernel.org>
Cc: linux-trace-kernel@vger.kernel.org, peterz@infradead.org,
oleg@redhat.com, rostedt@goodmis.org, mhiramat@kernel.org,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
jolsa@kernel.org, paulmck@kernel.org, willy@infradead.org,
surenb@google.com, akpm@linux-foundation.org, linux-mm@kvack.org,
mjguzik@gmail.com, brauner@kernel.org, jannh@google.com
Subject: Re: [PATCH 2/2] uprobes: add speculative lockless VMA-to-inode-to-uprobe resolution
Date: Sat, 7 Sep 2024 21:22:27 -0400 [thread overview]
Message-ID: <u2artc4iwuoo5y5rutseqlvnq4i44mcxne2ufwg3ya2hyonv45@v2ob54ci6ky7> (raw)
In-Reply-To: <20240906051205.530219-3-andrii@kernel.org>
* Andrii Nakryiko <andrii@kernel.org> [240906 01:12]:
...
> ---
> kernel/events/uprobes.c | 51 +++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
>
> diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
> index a2e6a57f79f2..b7e0baa83de1 100644
...
> @@ -2088,6 +2135,10 @@ static struct uprobe *find_active_uprobe_rcu(unsigned long bp_vaddr, int *is_swb
I'm having issues locating this function in akpm/mm-unstable. What
tree/commits am I missing to do a full review of this code?
> struct uprobe *uprobe = NULL;
> struct vm_area_struct *vma;
>
> + uprobe = find_active_uprobe_speculative(bp_vaddr);
> + if (uprobe)
> + return uprobe;
> +
> mmap_read_lock(mm);
> vma = vma_lookup(mm, bp_vaddr);
> if (vma) {
> --
> 2.43.5
>
>
next prev parent reply other threads:[~2024-09-08 1:22 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-06 5:12 [PATCH 0/2] uprobes,mm: speculative lockless VMA-to-uprobe lookup Andrii Nakryiko
2024-09-06 5:12 ` [PATCH 1/2] mm: introduce mmap_lock_speculation_{start|end} Andrii Nakryiko
2024-09-09 12:35 ` Jann Horn
2024-09-10 2:09 ` Suren Baghdasaryan
2024-09-10 15:31 ` Jann Horn
2024-09-11 21:34 ` Andrii Nakryiko
2024-09-11 21:48 ` Suren Baghdasaryan
2024-09-12 21:02 ` [PATCH v2 1/1] " Suren Baghdasaryan
2024-09-12 21:04 ` Suren Baghdasaryan
2024-09-12 22:19 ` Andrii Nakryiko
2024-09-12 22:24 ` Suren Baghdasaryan
2024-09-12 22:52 ` Jann Horn
2024-09-24 17:15 ` Matthew Wilcox
2024-09-24 18:00 ` Jann Horn
2024-09-06 5:12 ` [PATCH 2/2] uprobes: add speculative lockless VMA-to-inode-to-uprobe resolution Andrii Nakryiko
2024-09-08 1:22 ` Liam R. Howlett [this message]
2024-09-09 1:08 ` Andrii Nakryiko
2024-09-09 13:12 ` Jann Horn
2024-09-09 21:29 ` Andrii Nakryiko
2024-09-10 15:39 ` Jann Horn
2024-09-10 20:56 ` Andrii Nakryiko
2024-09-10 16:32 ` Suren Baghdasaryan
2024-09-10 20:58 ` Andrii Nakryiko
2024-09-12 11:17 ` Christian Brauner
2024-09-12 17:54 ` Andrii Nakryiko
2024-09-15 15:04 ` Oleg Nesterov
2024-09-17 8:19 ` Andrii Nakryiko
2024-09-10 16:06 ` [PATCH 0/2] uprobes,mm: speculative lockless VMA-to-uprobe lookup Jann Horn
2024-09-10 17:58 ` Andrii Nakryiko
2024-09-10 18:13 ` Jann Horn
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