Re: [PATCH v2 00/12] btrfs: add zstd compression level support

[David Sterba]

On Mon, Feb 04, 2019 at 03:19:56PM -0500, Dennis Zhou wrote:
> Hi everyone,
> 
> V2 had only a handful of changes outside of minor feedback.
> 0001:
> - use functions over macros
> 0003:
> - BTRFS_NR_WORKSPACE_MANAGERS is added instead of overriding
>   BTRFS_COMPRESS_TYPES
> 0011 (new):
> - address monotonic memory requirement for zstd workspaces
> 0012:
> - increase reclaim timer to 307s from 67s
> - move from keeping track of time in ns to jiffies
> - remove timer in cleanup code
> - use min_t() instead of if statements in .set_level()
> - add header text to describe how workspaces are managed
> - nofs_flag type -> unsigned long to unsigned int

Something is wrong, the patchset on top of 5.0-rc5 hangs in test
btrfs/007, without a stacktrace. V1 was fine and I double checked that
rc5 itself is fine.