Messages in this thread | | | Date | Wed, 18 Nov 2015 10:56:34 -0500 | From | Tejun Heo <> | Subject | Re: request_queue use-after-free - inode_detach_wb() |
| |
Hello, Ilya.
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.
-- tejun
| |