Re: [PATCH 0/5] fs: don't let a stuck unmount take everybody else with it

[Christian Brauner]

On Wed, 21 Oct 2026 00:56:34 +0000, Josef Bacik wrote:
> fs: don't let a stuck unmount take everybody else with it
> 
> Hello,
> 
> A consistent problem we have in containerized environments is a
> misbehaving mount taking out all of the other containers. We hit the
> super_lock() while we've got a stuck or slow umount and everything backs
> up behind it, and there's no way to kill those things.
> 
> [...]

This makes sense to me.

---

Applied to the vfs-7.5.super branch of the vfs/vfs.git tree.
Patches in the vfs-7.5.super branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs-7.5.super

[1/5] fs: make sync(2) wait for superblocks being shut down explicitly
      https://git.kernel.org/vfs/vfs/c/4afadc443112
[2/5] fs: make freezing for suspend wait for superblocks being shut down
      https://git.kernel.org/vfs/vfs/c/86a14b765007
[3/5] fs: make the block device callbacks wait for superblocks being shut down
      https://git.kernel.org/vfs/vfs/c/3505dd5c488d
[4/5] fs: don't sleep on s_umount of a superblock being shut down
      https://git.kernel.org/vfs/vfs/c/e240433824ae
[5/5] fs: let a mount waiting for the old superblock to die be killed
      https://git.kernel.org/vfs/vfs/c/6f55404958eb