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From: Eric Blake <eblake@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Cc: kwolf@redhat.com, hreitz@redhat.com, stefanha@redhat.com,
	qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [PATCH 14/12] block-backend: update blk_co_pwrite() and blk_co_pread() wrappers
Date: Thu, 7 Oct 2021 15:38:06 -0500	[thread overview]
Message-ID: <20211007203806.gqpygsvhtshvcmqu@redhat.com> (raw)
In-Reply-To: <20211007175243.642516-2-vsementsov@virtuozzo.com>

On Thu, Oct 07, 2021 at 07:52:43PM +0200, Vladimir Sementsov-Ogievskiy wrote:
> Make bytes argument int64_t to be consistent with modern block-layer.
> Callers should be OK with it as type becomes wider.
> 
> What is inside functions?
> 
> - Conversion from int64_t to size_t. Still, we
> can't have a buffer larger than SIZE_MAX, therefore bytes should not be
> larger than SIZE_MAX as well. Add and assertion.

s/and/an/

> 
> - Passing to blk_co_pwritev() / blk_co_preadv() which already has
>   int64_t bytes argument.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>  include/sysemu/block-backend.h | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org



      reply	other threads:[~2021-10-07 20:59 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-06 13:17 [PATCH 00/12] block: 64bit blk io Vladimir Sementsov-Ogievskiy
2021-10-06 13:17 ` [PATCH 01/12] block-backend: blk_check_byte_request(): int64_t bytes Vladimir Sementsov-Ogievskiy
2021-10-06 15:09   ` Eric Blake
2021-10-06 13:17 ` [PATCH 02/12] block-backend: make blk_co_preadv() 64bit Vladimir Sementsov-Ogievskiy
2021-10-06 15:17   ` Eric Blake
2021-10-06 13:17 ` [PATCH 03/12] block-backend: convert blk_co_pwritev_part to int64_t bytes Vladimir Sementsov-Ogievskiy
2021-10-06 15:25   ` Eric Blake
2021-10-06 13:17 ` [PATCH 04/12] block-backend: convert blk_co_pdiscard " Vladimir Sementsov-Ogievskiy
2021-10-06 15:59   ` Eric Blake
2021-10-06 13:17 ` [PATCH 05/12] block-backend: rename _do_ helper functions to _co_do_ Vladimir Sementsov-Ogievskiy
2021-10-06 16:06   ` Eric Blake
2021-10-06 13:17 ` [PATCH 06/12] block-coroutine-wrapper.py: support BlockBackend first argument Vladimir Sementsov-Ogievskiy
2021-10-06 16:17   ` Eric Blake
2021-10-06 13:17 ` [PATCH 07/12] block-backend: drop blk_prw, use block-coroutine-wrapper Vladimir Sementsov-Ogievskiy
2021-10-06 16:22   ` Eric Blake
2021-10-06 13:17 ` [PATCH 08/12] block-backend: convert blk_foo wrappers to use int64_t bytes parameter Vladimir Sementsov-Ogievskiy
2021-10-06 16:29   ` Eric Blake
2021-10-06 13:17 ` [PATCH 09/12] block-backend: convert blk_co_copy_range to int64_t bytes Vladimir Sementsov-Ogievskiy
2021-10-06 20:04   ` Eric Blake
2021-10-06 13:17 ` [PATCH 10/12] block-backend: convert blk_aio_ functions to int64_t bytes paramter Vladimir Sementsov-Ogievskiy
2021-10-06 20:29   ` Eric Blake
2021-10-12 16:13     ` Vladimir Sementsov-Ogievskiy
2021-10-12 21:37       ` Eric Blake
2021-10-12 21:46         ` Vladimir Sementsov-Ogievskiy
2021-10-06 13:17 ` [PATCH 11/12] block-backend: blk_pread, blk_pwrite: rename count parameter to bytes Vladimir Sementsov-Ogievskiy
2021-10-06 20:33   ` Eric Blake
2021-10-06 13:17 ` [PATCH 12/12] block-backend: drop INT_MAX restriction from blk_check_byte_request() Vladimir Sementsov-Ogievskiy
2021-10-06 20:37   ` Eric Blake
2021-10-07 17:52 ` [PATCH 13/12] block-backend: fix blk_co_flush prototype to mention coroutine_fn Vladimir Sementsov-Ogievskiy
2021-10-07 20:36   ` Eric Blake
2021-10-07 17:52 ` [PATCH 14/12] block-backend: update blk_co_pwrite() and blk_co_pread() wrappers Vladimir Sementsov-Ogievskiy
2021-10-07 20:38   ` Eric Blake [this message]

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