From: Andi Kleen <ak@linux.intel.com>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Joerg Roedel <joro@8bytes.org>, Jiri Olsa <jolsa@redhat.com>,
linux-kernel@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH V3 02/17] kallsyms, x86: Export addresses of syscall trampolines
Date: Tue, 5 Jun 2018 09:00:43 -0700 [thread overview]
Message-ID: <20180605160043.GC7220@tassilo.jf.intel.com> (raw)
In-Reply-To: <1526986485-6562-3-git-send-email-adrian.hunter@intel.com>
> +#ifdef CONFIG_X86_64
> +int arch_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
> + char *name)
> +{
> + unsigned int cpu, ncpu;
> +
> + if (symnum >= num_possible_cpus())
> + return -EINVAL;
> +
> + for (cpu = cpumask_first(cpu_possible_mask), ncpu = 0;
> + cpu < num_possible_cpus() && ncpu < symnum;
> + cpu = cpumask_next(cpu, cpu_possible_mask), ncpu++)
> + ;
That is max_t(unsigned, cpumask_last(cpu_possible_mask), symnum)
Rest and other kernel patches look good to me
Acked-by: Andi Kleen <ak@linux.intel.com>
-Andi
next prev parent reply other threads:[~2018-06-05 16:00 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 10:54 [PATCH V3 00/17] perf tools and x86 PTI entry trampolines Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 01/17] kallsyms: Simplify update_iter_mod() Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 02/17] kallsyms, x86: Export addresses of syscall trampolines Adrian Hunter
2018-06-05 16:00 ` Andi Kleen [this message]
2018-06-06 8:02 ` Adrian Hunter
2018-06-06 10:50 ` Peter Zijlstra
2018-05-22 10:54 ` [PATCH V3 03/17] x86: Add entry trampolines to kcore Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 04/17] perf tools: Add machine__nr_cpus_avail() Adrian Hunter
2018-05-24 5:38 ` [tip:perf/core] perf machine: Add nr_cpus_avail() tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 05/17] perf tools: Workaround missing maps for x86 PTI entry trampolines Adrian Hunter
2018-05-24 5:38 ` [tip:perf/core] perf machine: " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 06/17] perf tools: Fix map_groups__split_kallsyms() for entry trampoline symbols Adrian Hunter
2018-05-24 5:39 ` [tip:perf/core] perf machine: " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 07/17] perf tools: Allow for extra kernel maps Adrian Hunter
2018-05-24 5:39 ` [tip:perf/core] perf machine: " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 08/17] perf tools: Create maps for x86 PTI entry trampolines Adrian Hunter
2018-05-24 5:40 ` [tip:perf/core] perf machine: " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 09/17] perf tools: Synthesize and process mmap events " Adrian Hunter
2018-05-24 5:40 ` [tip:perf/core] perf machine: " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 10/17] perf buildid-cache: kcore_copy: Keep phdr data in a list Adrian Hunter
2018-05-24 5:41 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 11/17] perf buildid-cache: kcore_copy: Keep a count of phdrs Adrian Hunter
2018-05-24 5:42 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 12/17] perf buildid-cache: kcore_copy: Calculate offset from phnum Adrian Hunter
2018-05-24 5:42 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 13/17] perf buildid-cache: kcore_copy: Layout sections Adrian Hunter
2018-05-24 5:43 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 14/17] perf buildid-cache: kcore_copy: Iterate phdrs Adrian Hunter
2018-05-24 5:43 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 15/17] perf buildid-cache: kcore_copy: Get rid of kernel_map Adrian Hunter
2018-05-24 5:44 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 16/17] perf buildid-cache: kcore_copy: Copy x86 PTI entry trampoline sections Adrian Hunter
2018-05-24 5:44 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-22 10:54 ` [PATCH V3 17/17] perf buildid-cache: kcore_copy: Amend the offset of sections that remap kernel text Adrian Hunter
2018-05-24 5:45 ` [tip:perf/core] perf " tip-bot for Adrian Hunter
2018-05-23 19:35 ` [PATCH V3 00/17] perf tools and x86 PTI entry trampolines Arnaldo Carvalho de Melo
2018-05-24 9:23 ` Adrian Hunter
2018-05-31 12:09 ` Adrian Hunter
2018-06-05 15:29 ` Arnaldo Carvalho de Melo
2018-06-05 16:00 ` Peter Zijlstra
2018-06-05 16:04 ` Arnaldo Carvalho de Melo
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