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    Subject[PATCH 06/18] oprofile: add inline function __oprofile_add_ext_sample()
    Date
    This patch adds the inline function __oprofile_add_ext_sample() to
    cpu_buffer.c and thus reduces overhead when calling
    oprofile_add_sample().

    Signed-off-by: Robert Richter <robert.richter@amd.com>
    ---
    drivers/oprofile/cpu_buffer.c | 13 ++++++++++---
    1 files changed, 10 insertions(+), 3 deletions(-)

    diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
    index b353b19..9e66c38 100644
    --- a/drivers/oprofile/cpu_buffer.c
    +++ b/drivers/oprofile/cpu_buffer.c
    @@ -277,8 +277,9 @@ static void oprofile_end_trace(struct oprofile_cpu_buffer *cpu_buf)
    cpu_buf->tracing = 0;
    }

    -void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
    - unsigned long event, int is_kernel)
    +static inline void
    +__oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
    + unsigned long event, int is_kernel)
    {
    struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);

    @@ -299,12 +300,18 @@ void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
    oprofile_end_trace(cpu_buf);
    }

    +void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
    + unsigned long event, int is_kernel)
    +{
    + __oprofile_add_ext_sample(pc, regs, event, is_kernel);
    +}
    +
    void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
    {
    int is_kernel = !user_mode(regs);
    unsigned long pc = profile_pc(regs);

    - oprofile_add_ext_sample(pc, regs, event, is_kernel);
    + __oprofile_add_ext_sample(pc, regs, event, is_kernel);
    }

    #ifdef CONFIG_OPROFILE_IBS
    --
    1.6.0.1



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