Re: WARNING: at fs/fs-writeback.c when plug out SD card after system suspend/resume

From: Tejun Heo
Date: Thu Dec 04 2014 - 09:16:38 EST


On Thu, Dec 04, 2014 at 03:08:35PM +0100, Jan Kara wrote:
> Yeah, but for the filesystem on top it doesn't really matter. Filesystems
> simply don't expect underlying structures can disappear. Changing all
> filesystems to deal with that would be too difficult so we have to make bdi
> stay in memory as needed and just detach it from the device (request queue)
> which goes away.

Wouldn't it be better to concentrate lifetime management to
request_queue instead of inserting another severance layer between bdi
and request_queue?


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