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Re: [Qemu-block] [PATCH v2 00/11] block: Deal with filters

From: Max Reitz
Subject: Re: [Qemu-block] [PATCH v2 00/11] block: Deal with filters
Date: Wed, 29 Aug 2018 15:29:59 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Eric inadvertently pointed me to the fact that qemu-img needs some
additional work.  Its get_block_status() should completely skip R/W
filters (just adding a "bs = bdrv_skip_rw_filters()" at the top of the
loop is enough -- in turn, I can probably drop the
bdrv_skip_implicit_filters() at the bottom), and I suspect the
bdrv_block_status() call in convert_iteration_sectors() should really be

  BlockDriverState *src_bs = blk_bs(s->src[src_cur]);
  bdrv_block_status_above(src_bs, bdrv_backing_chain_next(src_bs), ...);


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