linux-kernel - Re: [PATCH] erofs: set SB_NODEV sb

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Date: Tue, 16 Apr 2024 14:35:08 +0200
From: Christian Brauner <brauner@...nel.org>
To: Baokun Li <libaokun1@...wei.com>
Cc: xiang@...nel.org, linux-erofs@...ts.ozlabs.org, chao@...nel.org, 
	huyue2@...lpad.com, jefflexu@...ux.alibaba.com, viro@...iv.linux.org.uk, 
	linux-kernel@...r.kernel.org, yangerkun@...wei.com, houtao1@...wei.com
Subject: Re: [PATCH] erofs: set SB_NODEV sb_flags when mounting with fsid

> > I'm not sure how to resolve it in EROFS itself, anyway...

Instead of allocating the erofs_sb_info in fill_super() allocate it
during erofs_get_tree() and then you can ensure that you always have the
info you need available during erofs_kill_sb(). See the appended
(untested) patch.

View attachment "0001-erofs-reliably-distinguish-block-based-and-fscache-m.patch" of type "text/x-diff" (4055 bytes)