From: Masami Hiramatsu <mhiramat@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: jpoimboe@redhat.com, jbaron@akamai.com, rostedt@goodmis.org,
ardb@kernel.org, naveen.n.rao@linux.ibm.com,
anil.s.keshavamurthy@intel.com, davem@davemloft.net,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] kprobe/static_call: Restore missing static_call_text_reserved()
Date: Mon, 28 Jun 2021 23:25:29 +0900 [thread overview]
Message-ID: <20210628232529.f4b460b9e58cbb4098fe6c6a@kernel.org> (raw)
In-Reply-To: <20210628113045.167127609@infradead.org>
On Mon, 28 Jun 2021 13:24:12 +0200
Peter Zijlstra <peterz@infradead.org> wrote:
> Restore two hunks from commit 6333e8f73b83 ("static_call: Avoid
> kprobes on inline static_call()s") that went walkabout.
>
> Fixes: 76d4acf22b48 ("Merge tag 'perf-kprobes-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
This looks good to me.
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Thank you!
> ---
> kernel/kprobes.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -35,6 +35,7 @@
> #include <linux/ftrace.h>
> #include <linux/cpu.h>
> #include <linux/jump_label.h>
> +#include <linux/static_call.h>
> #include <linux/perf_event.h>
>
> #include <asm/sections.h>
> @@ -1551,6 +1552,7 @@ static int check_kprobe_address_safe(str
> if (!kernel_text_address((unsigned long) p->addr) ||
> within_kprobe_blacklist((unsigned long) p->addr) ||
> jump_label_text_reserved(p->addr, p->addr) ||
> + static_call_text_reserved(p->addr, p->addr) ||
> find_bug((unsigned long)p->addr)) {
> ret = -EINVAL;
> goto out;
>
>
--
Masami Hiramatsu <mhiramat@kernel.org>
next prev parent reply other threads:[~2021-06-28 14:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-28 11:24 [PATCH 0/3] jump_label/static_call/kprobes: *_text_reserved() fixes Peter Zijlstra
2021-06-28 11:24 ` [PATCH 1/3] jump_label: Fix jump_label_text_reserved() vs __init Peter Zijlstra
2021-06-28 13:43 ` Masami Hiramatsu
2021-07-05 7:53 ` [tip: locking/urgent] " tip-bot2 for Peter Zijlstra
2021-07-05 9:05 ` tip-bot2 for Peter Zijlstra
2021-06-28 11:24 ` [PATCH 2/3] static_call: Fix static_call_text_reserved() " Peter Zijlstra
2021-06-28 14:26 ` Masami Hiramatsu
2021-07-05 7:53 ` [tip: locking/urgent] " tip-bot2 for Peter Zijlstra
2021-07-05 9:05 ` tip-bot2 for Peter Zijlstra
2021-06-28 11:24 ` [PATCH 3/3] kprobe/static_call: Restore missing static_call_text_reserved() Peter Zijlstra
2021-06-28 11:34 ` Peter Zijlstra
2021-06-28 14:24 ` Masami Hiramatsu
2021-06-28 15:03 ` Peter Zijlstra
2021-06-28 14:25 ` Masami Hiramatsu [this message]
2021-07-05 7:53 ` [tip: locking/urgent] " tip-bot2 for Peter Zijlstra
2021-07-05 9:05 ` tip-bot2 for Peter Zijlstra
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