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    Subject[tip:smp/hotplug] smp: Do not mark call_function_data as shared
    Commit-ID:  a22793c79d6ea0a492ce1a308ec46df52ee9406e
    Gitweb: https://git.kernel.org/tip/a22793c79d6ea0a492ce1a308ec46df52ee9406e
    Author: Nadav Amit <namit@vmware.com>
    AuthorDate: Wed, 12 Jun 2019 23:48:11 -0700
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitDate: Sun, 23 Jun 2019 14:26:25 +0200

    smp: Do not mark call_function_data as shared

    cfd_data is marked as shared, but although it hold pointers to shared
    data structures, it is private per core.

    Signed-off-by: Nadav Amit <namit@vmware.com>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: Rik van Riel <riel@surriel.com>
    Link: https://lkml.kernel.org/r/20190613064813.8102-8-namit@vmware.com

    ---
    kernel/smp.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/kernel/smp.c b/kernel/smp.c
    index d155374632eb..220ad142f5dd 100644
    --- a/kernel/smp.c
    +++ b/kernel/smp.c
    @@ -34,7 +34,7 @@ struct call_function_data {
    cpumask_var_t cpumask_ipi;
    };

    -static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_function_data, cfd_data);
    +static DEFINE_PER_CPU_ALIGNED(struct call_function_data, cfd_data);

    static DEFINE_PER_CPU_SHARED_ALIGNED(struct llist_head, call_single_queue);

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