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Re: [Qemu-block] [PATCH v8 07/16] block: Remove BDS close notifier


From: Fam Zheng
Subject: Re: [Qemu-block] [PATCH v8 07/16] block: Remove BDS close notifier
Date: Thu, 28 Jan 2016 11:27:00 +0800
User-agent: Mutt/1.5.21 (2010-09-15)

On Wed, 01/27 18:59, Max Reitz wrote:
> It is unused now, so we can remove it.
> 
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  block.c                        | 8 --------
>  block/block-backend.c          | 7 -------
>  include/block/block.h          | 1 -
>  include/block/block_int.h      | 2 --
>  include/sysemu/block-backend.h | 1 -
>  5 files changed, 19 deletions(-)
> 
> diff --git a/block.c b/block.c
> index 9a31e20..a6da333 100644
> --- a/block.c
> +++ b/block.c
> @@ -259,7 +259,6 @@ BlockDriverState *bdrv_new(void)
>      for (i = 0; i < BLOCK_OP_TYPE_MAX; i++) {
>          QLIST_INIT(&bs->op_blockers[i]);
>      }
> -    notifier_list_init(&bs->close_notifiers);
>      notifier_with_return_list_init(&bs->before_write_notifiers);
>      qemu_co_queue_init(&bs->throttled_reqs[0]);
>      qemu_co_queue_init(&bs->throttled_reqs[1]);
> @@ -269,11 +268,6 @@ BlockDriverState *bdrv_new(void)
>      return bs;
>  }
>  
> -void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify)
> -{
> -    notifier_list_add(&bs->close_notifiers, notify);
> -}
> -
>  BlockDriver *bdrv_find_format(const char *format_name)
>  {
>      BlockDriver *drv1;
> @@ -2157,8 +2151,6 @@ void bdrv_close(BlockDriverState *bs)
>      bdrv_flush(bs);
>      bdrv_drain(bs); /* in case flush left pending I/O */
>  
> -    notifier_list_notify(&bs->close_notifiers, bs);
> -
>      bdrv_release_all_dirty_bitmaps(bs);
>  
>      if (bs->blk) {
> diff --git a/block/block-backend.c b/block/block-backend.c
> index 1872191..621787c 100644
> --- a/block/block-backend.c
> +++ b/block/block-backend.c
> @@ -1146,13 +1146,6 @@ void blk_add_insert_bs_notifier(BlockBackend *blk, 
> Notifier *notify)
>      notifier_list_add(&blk->insert_bs_notifiers, notify);
>  }
>  
> -void blk_add_close_notifier(BlockBackend *blk, Notifier *notify)
> -{
> -    if (blk->bs) {
> -        bdrv_add_close_notifier(blk->bs, notify);
> -    }
> -}
> -
>  void blk_io_plug(BlockBackend *blk)
>  {
>      if (blk->bs) {
> diff --git a/include/block/block.h b/include/block/block.h
> index 25f36dc..c7345de 100644
> --- a/include/block/block.h
> +++ b/include/block/block.h
> @@ -226,7 +226,6 @@ int bdrv_reopen_prepare(BDRVReopenState *reopen_state,
>  void bdrv_reopen_commit(BDRVReopenState *reopen_state);
>  void bdrv_reopen_abort(BDRVReopenState *reopen_state);
>  void bdrv_close(BlockDriverState *bs);
> -void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify);
>  int bdrv_read(BlockDriverState *bs, int64_t sector_num,
>                uint8_t *buf, int nb_sectors);
>  int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num,
> diff --git a/include/block/block_int.h b/include/block/block_int.h
> index ec31df1..8730cf6 100644
> --- a/include/block/block_int.h
> +++ b/include/block/block_int.h
> @@ -403,8 +403,6 @@ struct BlockDriverState {
>      BdrvChild *backing;
>      BdrvChild *file;
>  
> -    NotifierList close_notifiers;
> -
>      /* Callback before write request is processed */
>      NotifierWithReturnList before_write_notifiers;
>  
> diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
> index e12be67..ae4efb4 100644
> --- a/include/sysemu/block-backend.h
> +++ b/include/sysemu/block-backend.h
> @@ -166,7 +166,6 @@ void blk_remove_aio_context_notifier(BlockBackend *blk,
>                                       void *opaque);
>  void blk_add_remove_bs_notifier(BlockBackend *blk, Notifier *notify);
>  void blk_add_insert_bs_notifier(BlockBackend *blk, Notifier *notify);
> -void blk_add_close_notifier(BlockBackend *blk, Notifier *notify);
>  void blk_io_plug(BlockBackend *blk);
>  void blk_io_unplug(BlockBackend *blk);
>  BlockAcctStats *blk_get_stats(BlockBackend *blk);
> -- 
> 2.7.0
> 

Reviewed-by: Fam Zheng <address@hidden>



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