linux-kernel - Re: [PATCH v2] erofs: ensure regular inodes for file-backed mounts

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Message-ID: <27aeda6c-dd0d-4cef-b071-18499b1b3e70@kernel.org>
Date: Fri, 11 Oct 2024 11:10:26 +0800
From: Chao Yu <chao@...nel.org>
To: Gao Xiang <hsiangkao@...ux.alibaba.com>, linux-erofs@...ts.ozlabs.org
Cc: Chao Yu <chao@...nel.org>,
 syzbot+001306cd9c92ce0df23f@...kaller.appspotmail.com,
 LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] erofs: ensure regular inodes for file-backed mounts

On 2024/9/17 21:08, Gao Xiang wrote:
> Only regular inodes are allowed for file-backed mounts, not directories
> (as seen in the original syzbot case) or special inodes.
> 
> Also ensure that .read_folio() is implemented on the underlying fs
> for the primary device.
> 
> Fixes: fb176750266a ("erofs: add file-backed mount support")
> Reported-by: syzbot+001306cd9c92ce0df23f@...kaller.appspotmail.com
> Closes: https://lore.kernel.org/r/00000000000011bdde0622498ee3@google.com
> Tested-by: syzbot+001306cd9c92ce0df23f@...kaller.appspotmail.com
> Signed-off-by: Gao Xiang <hsiangkao@...ux.alibaba.com>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,