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Message-ID: <276837dc-b18a-6f20-fc33-d988dff5ae9f@huawei.com>
Date: Fri, 28 Jun 2019 11:50:21 +0800
From: Gao Xiang <gaoxiang25@...wei.com>
To: Yue Hu <zbestahu@...il.com>, <yuchao0@...wei.com>,
<gregkh@...uxfoundation.org>
CC: <linux-erofs@...ts.ozlabs.org>, <devel@...verdev.osuosl.org>,
<linux-kernel@...r.kernel.org>, <huyue2@...ong.com>,
Miao Xie <miaoxie@...wei.com>
Subject: Re: [PATCH] staging: erofs: don't check special inode layout
Hi Yue,
On 2019/6/28 11:42, Yue Hu wrote:
> From: Yue Hu <huyue2@...ong.com>
>
> Currently, we will check if inode layout is compression or inline if
> the inode is special in fill_inode(). Also set ->i_mapping->a_ops for
> it. That is pointless since the both modes won't be set for special
> inode when creating EROFS filesystem image. So, let's avoid it.
>
> Signed-off-by: Yue Hu <huyue2@...ong.com>
Have you test this patch with some actual image with legacy mkfs since
new mkfs framework have not supported special inode...
I think that is fine in priciple, however, in case to introduce some potential
issues, I will test this patch later. I will give a Reviewed-by tag after I tested
this patch.
Thanks,
Gao Xiang
> ---
> drivers/staging/erofs/inode.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
> index 1433f25..2fe0f6d 100644
> --- a/drivers/staging/erofs/inode.c
> +++ b/drivers/staging/erofs/inode.c
> @@ -205,6 +205,7 @@ static int fill_inode(struct inode *inode, int isdir)
> S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
> inode->i_op = &erofs_generic_iops;
> init_special_inode(inode, inode->i_mode, inode->i_rdev);
> + goto out_unlock;
> } else {
> err = -EIO;
> goto out_unlock;
>
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