From: Cornelia Huck <cohuck@redhat.com>
To: Janosch Frank <frankja@linux.ibm.com>
Cc: kvm@vger.kernel.org, thuth@redhat.com, borntraeger@de.ibm.com,
linux-s390@vger.kernel.org, david@redhat.com
Subject: Re: [kvm-unit-tests PATCH v3 7/9] s390x: smp: Remove unneeded cpu loops
Date: Mon, 20 Jan 2020 12:29:56 +0100 [thread overview]
Message-ID: <20200120122956.6879d159.cohuck@redhat.com> (raw)
In-Reply-To: <20200117104640.1983-8-frankja@linux.ibm.com>
On Fri, 17 Jan 2020 05:46:38 -0500
Janosch Frank <frankja@linux.ibm.com> wrote:
> Now that we have a loop which is executed after we return from the
> main function of a secondary cpu, we can remove the surplus loops.
>
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> ---
> s390x/smp.c | 8 +-------
> 1 file changed, 1 insertion(+), 7 deletions(-)
>
> diff --git a/s390x/smp.c b/s390x/smp.c
> index 555ed72..c12a3db 100644
> --- a/s390x/smp.c
> +++ b/s390x/smp.c
> @@ -29,15 +29,9 @@ static void wait_for_flag(void)
> }
> }
>
> -static void cpu_loop(void)
> -{
> - for (;;) {}
> -}
> -
> static void test_func(void)
> {
> testflag = 1;
> - cpu_loop();
> }
>
> static void test_start(void)
> @@ -234,7 +228,7 @@ int main(void)
>
> /* Setting up the cpu to give it a stack and lowcore */
> psw.mask = extract_psw_mask();
> - psw.addr = (unsigned long)cpu_loop;
> + psw.addr = (unsigned long)test_func;
Before, you did not set testflag here... intended change?
> smp_cpu_setup(1, psw);
> smp_cpu_stop(1);
>
next prev parent reply other threads:[~2020-01-20 11:30 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-17 10:46 [kvm-unit-tests PATCH v3 0/9] s390x: smp: Improve smp code and reset checks Janosch Frank
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 1/9] s390x: smp: Cleanup smp.c Janosch Frank
2020-01-20 12:02 ` David Hildenbrand
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 2/9] s390x: smp: Only use smp_cpu_setup once Janosch Frank
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 3/9] s390x: Add cpu id to interrupt error prints Janosch Frank
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 4/9] s390x: smp: Rework cpu start and active tracking Janosch Frank
2020-01-20 12:06 ` David Hildenbrand
2020-01-20 13:16 ` Thomas Huth
2020-01-20 13:20 ` David Hildenbrand
2020-01-20 14:47 ` Janosch Frank
2020-01-20 14:53 ` David Hildenbrand
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 5/9] s390x: smp: Wait for cpu setup to finish Janosch Frank
2020-01-20 11:04 ` Cornelia Huck
2020-01-20 12:07 ` David Hildenbrand
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 6/9] s390x: smp: Loop if secondary cpu returns into cpu setup again Janosch Frank
2020-01-20 11:27 ` Cornelia Huck
2020-01-20 12:07 ` David Hildenbrand
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 7/9] s390x: smp: Remove unneeded cpu loops Janosch Frank
2020-01-20 11:29 ` Cornelia Huck [this message]
2020-01-20 14:41 ` Janosch Frank
2020-01-20 16:11 ` Cornelia Huck
2020-01-21 12:46 ` Janosch Frank
2020-01-21 12:59 ` Cornelia Huck
2020-01-21 13:07 ` Janosch Frank
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 8/9] s390x: smp: Test all CRs on initial reset Janosch Frank
2020-01-20 11:44 ` Cornelia Huck
2020-01-20 12:10 ` David Hildenbrand
2020-01-20 14:49 ` Janosch Frank
2020-01-20 14:53 ` David Hildenbrand
2020-01-17 10:46 ` [kvm-unit-tests PATCH v3 9/9] s390x: smp: Dirty fpc before initial reset test Janosch Frank
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