Re: [Qemu-devel] [RFC PATCH v1 4/6] spapr: Consolidate HPT freeing code into a routine

[David Gibson]

On Wed, May 17, 2017 at 09:19:20AM +0530, Bharata B Rao wrote:
> Consolidate the code that frees HPT into a separate routine
> spapr_free_hpt() as the same chunk of code is called from two places.
> 
> Signed-off-by: Bharata B Rao <address@hidden>

Applied to ppc-for-2.10.  This is a good clean up in its own right.
Plus it will be useful to me to get my HPT resizing patches integrated
with radix support.

> ---
>  hw/ppc/spapr.c         | 13 +++++++++----
>  hw/ppc/spapr_hcall.c   |  5 +----
>  include/hw/ppc/spapr.h |  1 +
>  3 files changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 1b7cada..521eef1 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -1222,16 +1222,21 @@ static int spapr_hpt_shift_for_ramsize(uint64_t 
> ramsize)
>      return shift;
>  }
>  
> +void spapr_free_hpt(sPAPRMachineState *spapr)
> +{
> +    g_free(spapr->htab);
> +    spapr->htab = NULL;
> +    spapr->htab_shift = 0;
> +    close_htab_fd(spapr);
> +}
> +
>  static void spapr_reallocate_hpt(sPAPRMachineState *spapr, int shift,
>                                   Error **errp)
>  {
>      long rc;
>  
>      /* Clean up any HPT info from a previous boot */
> -    g_free(spapr->htab);
> -    spapr->htab = NULL;
> -    spapr->htab_shift = 0;
> -    close_htab_fd(spapr);
> +    spapr_free_hpt(spapr);
>  
>      rc = kvmppc_reset_htab(shift);
>      if (rc < 0) {
> diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
> index 3600b0e..be79e3d 100644
> --- a/hw/ppc/spapr_hcall.c
> +++ b/hw/ppc/spapr_hcall.c
> @@ -913,10 +913,7 @@ static void spapr_check_setup_free_hpt(sPAPRMachineState 
> *spapr,
>          /* We assume RADIX, so this catches all the "Do Nothing" cases */
>      } else if (!(patbe_old & PATBE1_GR)) {
>          /* HASH->RADIX : Free HPT */
> -        g_free(spapr->htab);
> -        spapr->htab = NULL;
> -        spapr->htab_shift = 0;
> -        close_htab_fd(spapr);
> +        spapr_free_hpt(spapr);
>      } else if (!(patbe_new & PATBE1_GR)) {
>          /* RADIX->HASH || NOTHING->HASH : Allocate HPT */
>          spapr_setup_hpt_and_vrma(spapr);
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index a692e63..6f9cb85 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -610,6 +610,7 @@ int spapr_h_cas_compose_response(sPAPRMachineState *sm,
>                                   sPAPROptionVector *ov5_updates);
>  void close_htab_fd(sPAPRMachineState *spapr);
>  void spapr_setup_hpt_and_vrma(sPAPRMachineState *spapr);
> +void spapr_free_hpt(sPAPRMachineState *spapr);
>  sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn);
>  void spapr_tce_table_enable(sPAPRTCETable *tcet,
>                              uint32_t page_shift, uint64_t bus_offset,

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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