Re: [PATCH 0/8] xfs: various fixes and cleanups

Dave Chinner
2020-03-25T01:51:32Z

On Wed, Mar 25, 2020 at 12:41:57PM +1100, Dave Chinner wrote:
> Hi folks,
>
> These are the fixes and cleanups that are part of the non-blocking
> inode reclaim series I've (slowly) been working on. These fixes and
> cleanups stand alone, many have already been reviewed, and getting
> them out of the non-blocking reclaim patchset makes that a much
> smaller and easier to digest set of patches.
>
> The changes in this patchset are for:
>
> - limiting the size of checkpoints that the CIL builds to reduce the
> memory it pins and the latency of commits.
> - cleaning up the AIL item removal code so we can reduce the number
> of tail LSN updates to prevent unnecessary thundering herd wakeups
> - account for reclaimable slab caches in XFS correctly
> - account for reclaimed pages from buffers correctly
> - avoiding log IO priority inversions
> - factoring the inode cluster deletion code to make it more readable
> and easier to modify for the non-blocking inode reclaim mods.
>
> Thoughts, comments and improvemnts welcome.

Oops, forgot to mention this is based on the for-next tree with
Christoph's xlog-ticket-cleanup.2 branch merged on top. You can pull
it from here:

git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git xfs-fixes-cleanups-5.7

or browse:

https://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git/log/?h=xfs-fixes-cleanups-5.7

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com