Re: [PATCH] ceph: use ktime_to_timespec64() rather than jiffies_to_timespec64()

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On Wed, Feb 9, 2022 at 7:55 PM Venky Shankar <vshankar@xxxxxxxxxx> wrote:
>
> Latencies are of type ktime_t, coverting from jiffies is incorrect.
> Also, switch to "struct ceph_timespec" for r/w/m latencies.
>
> Signed-off-by: Venky Shankar <vshankar@xxxxxxxxxx>
> ---
>  fs/ceph/metric.c | 20 ++++++++++----------
>  fs/ceph/metric.h | 11 ++++-------
>  2 files changed, 14 insertions(+), 17 deletions(-)
>
> diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c
> index 0fcba68f9a99..a9cd23561a0d 100644
> --- a/fs/ceph/metric.c
> +++ b/fs/ceph/metric.c
> @@ -8,6 +8,13 @@
>  #include "metric.h"
>  #include "mds_client.h"
>
> +static void to_ceph_timespec(struct ceph_timespec *ts, ktime_t val)

Hi Venky,

I think ktime_to_ceph_timespec() would be a much better name.

> +{
> +       struct timespec64 t = ktime_to_timespec64(val);
> +       ts->tv_sec = cpu_to_le32(t.tv_sec);
> +       ts->tv_nsec = cpu_to_le32(t.tv_nsec);

ceph_encode_timespec64() does this with appropriate casts, let's use
it.

Thanks,

                Ilya



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