Re: request_queue use-after-free - inode_detach_wb()
From: Tejun Heo
Date: Wed Nov 18 2015 - 10:56:43 EST
On Wed, Nov 18, 2015 at 04:48:06PM +0100, Ilya Dryomov wrote:
> Just to be clear, the bdi/wb vs inode lifetime rules are that inodes
> should always be within bdi/wb? There's been a lot of churn in this
Yes, that's where *I* think we should be headed. Stuff in lower
layers should stick around while upper layer things are around.
> and related areas recently, including in block drivers: 6cd18e711dd8
> ("block: destroy bdi before blockdev is unregistered"), b02176f30cd3
> ("block: don't release bdi while request_queue has live references"),
> so I want to fully get my head around this.
End-of-life issue has always been a bit of mess in the block layer.
Thanks a lot for working on this.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/