Re: [PATCH v1 0/3] btrfs: add sysfs switch to get/set metadata size

[Josef Bacik <josef@toxicpanda.com>]

On Tue, Feb 08, 2022 at 11:31:19AM -0800, Stefan Roesch wrote:
> The btrfs allocator is currently not ideal for all workloads. It tends
> to suffer from overallocating data block groups and underallocating
> metadata block groups. This results in filesystems becoming read-only
> even though there is plenty of "free" space.
> 
> This patch adds the ability to query and set the metadata allocation
> size.
> 
>   Patch 1: btrfs: store chunk size in space-info struct.
>     Store the stripe and chunk size in the btrfs_space_info structure
>     to be able to expose and set the metadata allocation size.
>     
>   Patch 2: btrfs: expose chunk size in sysfs.
>     Add a sysfs entry to read and write the above information.
>     
>   btrfs: add force_chunk_alloc sysfs entry to force allocation
>     For testing purposes and under a debug flag add a sysfs entry to
>     force a space allocation.
> 
> 

You can add

Reviewed-by: Josef Bacik <josef@toxicpanda.com>

Thanks,

Josef