On Jul 24, 2023, at 17:43, Qi Zheng [off-list ref] wrote:

The debugfs_remove_recursive() will wait for debugfs_file_put() to return,
so the shrinker will not be freed when doing debugfs operations (such as
shrinker_debugfs_count_show() and shrinker_debugfs_scan_write()), so there
is no need to hold shrinker_rwsem during debugfs operations.

Signed-off-by: Qi Zheng <redacted>

Reviewed-by: Muchun Song <redacted>

Thanks.