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From: Peter Xu <peterx@redhat.com>
To: Chuang Xu <xuchuangxclwt@bytedance.com>
Cc: qemu-devel@nongnu.org, dgilbert@redhat.com, quintela@redhat.com,
	pbonzini@redhat.com, david@redhat.com, philmd@linaro.org,
	zhouyibo@bytedance.com
Subject: Re: [PATCH v7 3/6] memory: Introduce memory_region_transaction_do_commit()
Date: Fri, 10 Mar 2023 09:51:32 -0500	[thread overview]
Message-ID: <ZAtD9BZ4x2QwYUaH@x1n> (raw)
In-Reply-To: <20230310022425.2992472-4-xuchuangxclwt@bytedance.com>

On Fri, Mar 10, 2023 at 10:24:22AM +0800, Chuang Xu wrote:
> Split memory_region_transaction_do_commit() from
> memory_region_transaction_commit().
> 
> We'll call do_commit() in address_space_to_flatview() in the later patch.
> 
> Signed-off-by: Chuang Xu <xuchuangxclwt@bytedance.com>

[...]

> +void memory_region_transaction_commit(void)
> +{
> +    assert(memory_region_transaction_depth);
> +    assert(qemu_mutex_iothread_locked());

This context has nothing to assert BQL, so this can be dropped I think (you
have one in do_commit).

> +
> +    --memory_region_transaction_depth;
> +    if (!memory_region_transaction_depth) {
> +        memory_region_transaction_do_commit();
> +    }
>  }

With above dropped:

Reviewed-by: Peter Xu <peterx@redhat.com>

-- 
Peter Xu



  reply	other threads:[~2023-03-10 14:52 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-10  2:24 [PATCH v7 0/6] migration: reduce time of loading non-iterable vmstate Chuang Xu
2023-03-10  2:24 ` [PATCH v7 1/6] memory: Reference as->current_map directly in memory commit Chuang Xu
2023-03-14 11:25   ` David Edmondson
2023-03-10  2:24 ` [PATCH v7 2/6] rcu: Introduce rcu_read_is_locked() Chuang Xu
2023-03-10 14:50   ` Peter Xu
2023-03-10  2:24 ` [PATCH v7 3/6] memory: Introduce memory_region_transaction_do_commit() Chuang Xu
2023-03-10 14:51   ` Peter Xu [this message]
2023-03-13  2:53     ` Chuang Xu
2023-03-10  2:24 ` [PATCH v7 4/6] memory: Add sanity check in address_space_to_flatview Chuang Xu
2023-03-10 14:56   ` Peter Xu
2023-03-10  2:24 ` [PATCH v7 5/6] migration: Reduce time of loading non-iterable vmstate Chuang Xu
2023-03-10 14:58   ` Peter Xu
2023-03-16 10:46   ` Juan Quintela
2023-03-10  2:24 ` [PATCH v7 6/6] memory: Introduce address_space_to_flatview_rcu() Chuang Xu
2023-03-10 15:08   ` Peter Xu
2023-03-13  8:38     ` Chuang Xu

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