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Re: [Qemu-devel] [PATCH 11/31] ram: Remove unused pages_skiped variable


From: Dr. David Alan Gilbert
Subject: Re: [Qemu-devel] [PATCH 11/31] ram: Remove unused pages_skiped variable
Date: Thu, 16 Mar 2017 15:52:07 +0000
User-agent: Mutt/1.7.1 (2016-10-04)

* Juan Quintela (address@hidden) wrote:
> For compatibility, we need to still send a value, but just specify it
> and comment the fact.
> 
> Signed-off-by: Juan Quintela <address@hidden>

Note missing p in subject,

Reviewed-by: Dr. David Alan Gilbert <address@hidden>

> ---
>  include/migration/migration.h |  2 --
>  migration/migration.c         |  3 ++-
>  migration/ram.c               | 11 -----------
>  3 files changed, 2 insertions(+), 14 deletions(-)
> 
> diff --git a/include/migration/migration.h b/include/migration/migration.h
> index 3e6bb68..9c83951 100644
> --- a/include/migration/migration.h
> +++ b/include/migration/migration.h
> @@ -277,8 +277,6 @@ void free_xbzrle_decoded_buf(void);
>  void acct_update_position(QEMUFile *f, size_t size, bool zero);
>  
>  uint64_t dup_mig_pages_transferred(void);
> -uint64_t skipped_mig_bytes_transferred(void);
> -uint64_t skipped_mig_pages_transferred(void);
>  uint64_t norm_mig_bytes_transferred(void);
>  uint64_t norm_mig_pages_transferred(void);
>  uint64_t xbzrle_mig_bytes_transferred(void);
> diff --git a/migration/migration.c b/migration/migration.c
> index 3dab684..c3e1b95 100644
> --- a/migration/migration.c
> +++ b/migration/migration.c
> @@ -639,7 +639,8 @@ static void populate_ram_info(MigrationInfo *info, 
> MigrationState *s)
>      info->ram->transferred = ram_bytes_transferred();
>      info->ram->total = ram_bytes_total();
>      info->ram->duplicate = dup_mig_pages_transferred();
> -    info->ram->skipped = skipped_mig_pages_transferred();
> +    /* legacy value.  It is not used anymore */
> +    info->ram->skipped = 0;
>      info->ram->normal = norm_mig_pages_transferred();
>      info->ram->normal_bytes = norm_mig_bytes_transferred();
>      info->ram->mbps = s->mbps;
> diff --git a/migration/ram.c b/migration/ram.c
> index 83fe20a..468f042 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -169,7 +169,6 @@ static RAMState ram_state;
>  
>  /* accounting for migration statistics */
>  typedef struct AccountingInfo {
> -    uint64_t skipped_pages;
>      uint64_t norm_pages;
>      uint64_t iterations;
>      uint64_t xbzrle_bytes;
> @@ -191,16 +190,6 @@ uint64_t dup_mig_pages_transferred(void)
>      return ram_state.zero_pages;
>  }
>  
> -uint64_t skipped_mig_bytes_transferred(void)
> -{
> -    return acct_info.skipped_pages * TARGET_PAGE_SIZE;
> -}
> -
> -uint64_t skipped_mig_pages_transferred(void)
> -{
> -    return acct_info.skipped_pages;
> -}
> -
>  uint64_t norm_mig_bytes_transferred(void)
>  {
>      return acct_info.norm_pages * TARGET_PAGE_SIZE;
> -- 
> 2.9.3
> 
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK



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