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    Subject[PATCH 2/3] vmevent: Pass attr argument to sampling functions
    We'll need the argument for blended attributes, the attributes return
    either 0 or the threshold value (which is in attr).

    Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
    ---
    mm/vmevent.c | 14 +++++++++-----
    1 file changed, 9 insertions(+), 5 deletions(-)

    diff --git a/mm/vmevent.c b/mm/vmevent.c
    index 9f1520b..b312236 100644
    --- a/mm/vmevent.c
    +++ b/mm/vmevent.c
    @@ -39,9 +39,11 @@ struct vmevent_watch {
    wait_queue_head_t waitq;
    };

    -typedef u64 (*vmevent_attr_sample_fn)(struct vmevent_watch *watch);
    +typedef u64 (*vmevent_attr_sample_fn)(struct vmevent_watch *watch,
    + struct vmevent_attr *attr);

    -static u64 vmevent_attr_swap_pages(struct vmevent_watch *watch)
    +static u64 vmevent_attr_swap_pages(struct vmevent_watch *watch,
    + struct vmevent_attr *attr)
    {
    #ifdef CONFIG_SWAP
    struct sysinfo si;
    @@ -54,12 +56,14 @@ static u64 vmevent_attr_swap_pages(struct vmevent_watch *watch)
    #endif
    }

    -static u64 vmevent_attr_free_pages(struct vmevent_watch *watch)
    +static u64 vmevent_attr_free_pages(struct vmevent_watch *watch,
    + struct vmevent_attr *attr)
    {
    return global_page_state(NR_FREE_PAGES);
    }

    -static u64 vmevent_attr_avail_pages(struct vmevent_watch *watch)
    +static u64 vmevent_attr_avail_pages(struct vmevent_watch *watch,
    + struct vmevent_attr *attr)
    {
    return totalram_pages;
    }
    @@ -74,7 +78,7 @@ static u64 vmevent_sample_attr(struct vmevent_watch *watch, struct vmevent_attr
    {
    vmevent_attr_sample_fn fn = attr_samplers[attr->type];

    - return fn(watch);
    + return fn(watch, attr);
    }

    static bool vmevent_match(struct vmevent_watch *watch)
    --
    1.7.9.2


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