Re: [PATCH v3 04/19] s390: kernel: Convert timeouts to use secs_to_jiffies()

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On Tue, Dec 10, 2024 at 10:02:35PM +0000, Easwar Hariharan wrote:
> Commit b35108a51cf7 ("jiffies: Define secs_to_jiffies()") introduced
> secs_to_jiffies(). As the values here are a multiple of 1000, use
> secs_to_jiffies() instead of msecs_to_jiffies to avoid the multiplication.
> 
> This is converted using scripts/coccinelle/misc/secs_to_jiffies.cocci with
> the following Coccinelle rules:
> 
> @@ constant C; @@
> 
> - msecs_to_jiffies(C * 1000)
> + secs_to_jiffies(C)
> 
> @@ constant C; @@
> 
> - msecs_to_jiffies(C * MSEC_PER_SEC)
> + secs_to_jiffies(C)
> 
> Signed-off-by: Easwar Hariharan <eahariha@xxxxxxxxxxxxxxxxxxx>
> ---
>  arch/s390/kernel/lgr.c      | 2 +-
>  arch/s390/kernel/time.c     | 4 ++--
>  arch/s390/kernel/topology.c | 2 +-
>  3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/s390/kernel/lgr.c b/arch/s390/kernel/lgr.c
> index 6652e54cf3db9fbdd8cfb06f8a0dc1d4c05ae7d7..6d1ffca5f798086160112990cb947ec8deed0659 100644
> --- a/arch/s390/kernel/lgr.c
> +++ b/arch/s390/kernel/lgr.c
> @@ -166,7 +166,7 @@ static struct timer_list lgr_timer;
>   */
>  static void lgr_timer_set(void)
>  {
> -	mod_timer(&lgr_timer, jiffies + msecs_to_jiffies(LGR_TIMER_INTERVAL_SECS * MSEC_PER_SEC));
> +	mod_timer(&lgr_timer, jiffies + secs_to_jiffies(LGR_TIMER_INTERVAL_SECS));
>  }
>  
>  /*
> diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
> index 34a65c141ea076ba97b3238f1f36f077b15961df..e9f47c3a61978a45c72aee23bc44dcb128113c8c 100644
> --- a/arch/s390/kernel/time.c
> +++ b/arch/s390/kernel/time.c
> @@ -662,12 +662,12 @@ static void stp_check_leap(void)
>  		if (ret < 0)
>  			pr_err("failed to set leap second flags\n");
>  		/* arm Timer to clear leap second flags */
> -		mod_timer(&stp_timer, jiffies + msecs_to_jiffies(14400 * MSEC_PER_SEC));
> +		mod_timer(&stp_timer, jiffies + secs_to_jiffies(14400));
>  	} else {
>  		/* The day the leap second is scheduled for hasn't been reached. Retry
>  		 * in one hour.
>  		 */
> -		mod_timer(&stp_timer, jiffies + msecs_to_jiffies(3600 * MSEC_PER_SEC));
> +		mod_timer(&stp_timer, jiffies + secs_to_jiffies(3600));
>  	}
>  }
>  
> diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
> index 4f9c301a705b63f8dd0e7bc33e7206ad1222e7a7..0fd56a1cadbd4f41a9876a3a3fec7f5dc08ac2db 100644
> --- a/arch/s390/kernel/topology.c
> +++ b/arch/s390/kernel/topology.c
> @@ -371,7 +371,7 @@ static void set_topology_timer(void)
>  	if (atomic_add_unless(&topology_poll, -1, 0))
>  		mod_timer(&topology_timer, jiffies + msecs_to_jiffies(100));
>  	else
> -		mod_timer(&topology_timer, jiffies + msecs_to_jiffies(60 * MSEC_PER_SEC));
> +		mod_timer(&topology_timer, jiffies + secs_to_jiffies(60));
>  }
>  
>  void topology_expect_change(void)

With this chunk added to the patch:

diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index d01724a715d0..7bf0f691827b 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -204,7 +204,7 @@ static void cmm_set_timer(void)
 			del_timer(&cmm_timer);
 		return;
 	}
-	mod_timer(&cmm_timer, jiffies + msecs_to_jiffies(cmm_timeout_seconds * MSEC_PER_SEC));
+	mod_timer(&cmm_timer, jiffies + secs_to_jiffies(cmm_timeout_seconds));
 }
 
 static void cmm_timer_fn(struct timer_list *unused)


Acked-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>




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