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Re: [PATCH v5 00/31] block layer: split block APIs in global state and I

From: Stefan Hajnoczi
Subject: Re: [PATCH v5 00/31] block layer: split block APIs in global state and I/O
Date: Mon, 29 Nov 2021 13:32:39 +0000

On Wed, Nov 24, 2021 at 01:43:47AM -0500, Emanuele Giuseppe Esposito wrote:
> v5 -> v6:
> * In short, apply all Hanna's comments. More in details,
>   the following functions in the following headers have been moved:
>   block-backend:
>     blk_replace_bs (to gs)
>     blk_nb_sectors (to io)
>     blk_name (to io)
>     blk_set_perm (to io)
>     blk_get_perm (to io)
>     blk_drain (to io)
>     blk_abort_aio_request (to io)
>     blk_make_empty (to gs)
>     blk_invalidate_cache (was in io, but had GS assertion)
>     blk_aio_cancel (to gs)
>   block:
>     bdrv_replace_child_bs (to gs)
>     bdrv_get_device_name (to io)
>     bdrv_get_device_or_node_name (to io)
>     bdrv_drained_end_no_poll (to io)
>     bdrv_block_status (was in io, but had GS assertion)
>     bdrv_drain (to io)
>     bdrv_co_drain (to io)
>     bdrv_make_zero (was in GS, but did not have the assertion)
>     bdrv_save_vmstate (to io)
>     bdrv_load_vmstate (to io)
>     bdrv_aio_cancel_async (to io)
>   block_int:
>     bdrv_get_parent_name (to io)
>     bdrv_apply_subtree_drain (to io)
>     bdrv_unapply_subtree_drain (to io)
>     bdrv_co_copy_range_from (was in io, but had GS assertion)
>     bdrv_co_copy_range_to (was in io, but had GS assertion)
>     ->bdrv_save_vmstate (to io)
>     ->bdrv_load_vmstate (to io)
>   coding style (assertion after definitions):
>     bdrv_save_vmstate
>     bdrv_load_vmstate
>     block_job_next
>     block_job_get
>   new patches:
>     block.c: modify .attach and .detach callbacks of child_of_bds
>     introduce pre_run as JobDriver callback to handle
>       bdrv_co_amend usage of permission function
>     leave blk_set/get_perm as a TODO in fuse.c
>     make sure bdrv_co_invalidate_cache does not use permissions
>       if BQL is not held
>   minor changes:
>     put back TODO for include block/block.h in block-backend-common.h
>     rebase on kwolf/block branch
>     modify where are used assert_bdrv_graph_writable, due to rebase

These changes sound fine to me. Hanna or Kevin can merge the series when
they are happy.


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