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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: Juan Quintela <quintela@redhat.com>
Cc: Leonardo Bras <leobras@redhat.com>,
	qemu-devel@nongnu.org, Peter Xu <peterx@redhat.com>
Subject: Re: [PATCH v3 5/6] migration: simplify do_compress_ram_page
Date: Tue, 11 Jan 2022 13:45:02 +0000	[thread overview]
Message-ID: <Yd2J3meU2jP012SJ@work-vm> (raw)
In-Reply-To: <20220111124556.4892-6-quintela@redhat.com>

* Juan Quintela (quintela@redhat.com) wrote:
> The goto is not needed at all.
> 
> Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> ---
>  migration/ram.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/migration/ram.c b/migration/ram.c
> index fa49d22e69..422c6bce28 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -1341,12 +1341,11 @@ static bool do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
>  {
>      RAMState *rs = ram_state;
>      uint8_t *p = block->host + offset;
> -    bool zero_page = false;
>      int ret;
>  
>      if (save_zero_page_to_file(rs, f, block, offset)) {
> -        zero_page = true;
> -        goto exit;
> +        ram_release_page(block->idstr, offset);
> +        return true;
>      }
>  
>      save_page_header(rs, f, block, offset | RAM_SAVE_FLAG_COMPRESS_PAGE);
> @@ -1361,12 +1360,8 @@ static bool do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
>      if (ret < 0) {
>          qemu_file_set_error(migrate_get_current()->to_dst_file, ret);
>          error_report("compressed data failed!");
> -        return false;
>      }
> -
> -exit:
> -    ram_release_page(block->idstr, offset);
> -    return zero_page;
> +    return false;
>  }
>  
>  static void
> -- 
> 2.34.1
> 
-- 
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK



  reply	other threads:[~2022-01-11 14:09 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-11 12:45 [PATCH v3 0/6] migration: misc cleanups Juan Quintela
2022-01-11 12:45 ` [PATCH v3 1/6] migration: All this fields are unsigned Juan Quintela
2022-01-11 12:45 ` [PATCH v3 2/6] migration: We only need last_stage in two places Juan Quintela
2022-01-11 12:45 ` [PATCH v3 3/6] migration: ram_release_pages() always receive 1 page as argument Juan Quintela
2022-01-11 13:44   ` Philippe Mathieu-Daudé
2022-01-25  9:16     ` Juan Quintela
2022-01-11 12:45 ` [PATCH v3 4/6] migration: Remove masking for compression Juan Quintela
2022-01-11 13:38   ` Dr. David Alan Gilbert
2022-01-11 12:45 ` [PATCH v3 5/6] migration: simplify do_compress_ram_page Juan Quintela
2022-01-11 13:45   ` Dr. David Alan Gilbert [this message]
2022-01-11 12:45 ` [PATCH v3 6/6] migration: Move ram_release_pages() call to save_zero_page_to_file() Juan Quintela

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