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From: Chao Yu <yuchao0@huawei.com>
To: Gao Xiang <gaoxiang25@huawei.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	<devel@driverdev.osuosl.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	<linux-erofs@lists.ozlabs.org>, "Chao Yu" <chao@kernel.org>,
	Miao Xie <miaoxie@huawei.com>, <weidu.du@huawei.com>,
	Fang Wei <fangwei1@huawei.com>
Subject: Re: [PATCH v2 3/3] staging: erofs: support IO read error injection
Date: Mon, 25 Mar 2019 11:43:46 +0800	[thread overview]
Message-ID: <2719c5f6-b6db-65bf-6c7e-3fa25dbcbf6f@huawei.com> (raw)
In-Reply-To: <20190325034009.38611-3-gaoxiang25@huawei.com>

On 2019/3/25 11:40, Gao Xiang wrote:
> Used to simulate disk IO read error for testing fatal
> error tolerance.
> 
> Here are the details,
> 1) use bio->bi_private to indicate super_block
>    for non-compressed bios since some (mainly meta)
>    pages can be of the corresponding bdev inode;
> 2) get super_block dynamically for compressed bios,
>    therefore it could not inject bios full of staging
>    pages, yet it doesn't affect the normal usage.
> 
> Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>

Reviewed-by: Chao Yu <yuchao0@huawei.com>

Thanks,

WARNING: multiple messages have this Message-ID (diff)
From: yuchao0@huawei.com (Chao Yu)
Subject: [PATCH v2 3/3] staging: erofs: support IO read error injection
Date: Mon, 25 Mar 2019 11:43:46 +0800	[thread overview]
Message-ID: <2719c5f6-b6db-65bf-6c7e-3fa25dbcbf6f@huawei.com> (raw)
In-Reply-To: <20190325034009.38611-3-gaoxiang25@huawei.com>

On 2019/3/25 11:40, Gao Xiang wrote:
> Used to simulate disk IO read error for testing fatal
> error tolerance.
> 
> Here are the details,
> 1) use bio->bi_private to indicate super_block
>    for non-compressed bios since some (mainly meta)
>    pages can be of the corresponding bdev inode;
> 2) get super_block dynamically for compressed bios,
>    therefore it could not inject bios full of staging
>    pages, yet it doesn't affect the normal usage.
> 
> Signed-off-by: Gao Xiang <gaoxiang25 at huawei.com>

Reviewed-by: Chao Yu <yuchao0 at huawei.com>

Thanks,

  reply	other threads:[~2019-03-25  3:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-25  3:40 [PATCH v2 1/3] staging: erofs: fix error handling when failed to read compresssed data Gao Xiang
2019-03-25  3:40 ` Gao Xiang
2019-03-25  3:40 ` [PATCH v2 2/3] staging: erofs: introduce erofs_page_is_managed() Gao Xiang
2019-03-25  3:40   ` Gao Xiang
2019-03-25  3:40 ` [PATCH v2 3/3] staging: erofs: support IO read error injection Gao Xiang
2019-03-25  3:40   ` Gao Xiang
2019-03-25  3:43   ` Chao Yu [this message]
2019-03-25  3:43     ` Chao Yu

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