Re: [PATCH v4 0/3] writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs()

[Christian Brauner]

On Thu, 21 May 2026 17:50:13 +0800, Baokun Li wrote:
> Changes since v3:
>  * Collect RVB from Jan Kara. (Thanks for your review!)
>  * Patch 3: Remove stale comments. (Reported by Sashiko)
> 
> Changes since v2:
>  * Collect RVB from Jan Kara. (Thanks for your review!)
>  * Patch 3: switch to wake_up_var() / wait_var_event() to drain
>    s_isw_nr_in_flight. (Suggested by Christian Brauner and Sashiko)
>  * Polish comments and changelogs.
> 
> [...]

Applied to the vfs-7.2.writeback branch of the vfs/vfs.git tree.
Patches in the vfs-7.2.writeback 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-7.2.writeback

[1/3] writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs()
      https://git.kernel.org/vfs/vfs/c/cba38ec4cbd3
[2/3] writeback: drop now-unnecessary rcu_barrier() in cgroup_writeback_umount()
      https://git.kernel.org/vfs/vfs/c/e90a6d668e26
[3/3] writeback: use a per-sb counter to drain inode wb switches at umount
      https://git.kernel.org/vfs/vfs/c/31c1d19ead2c