On Wed,  3 May 2023 16:01:14 +0200
Ondrej Mosnacek [off-list ref] wrote:

This file defines both read and write operations, yet it is being
created as read-only. This means that it can't be written to without the
CAP_DAC_OVERRIDE capability. Fix the permissions to allow root to write
to it without the need to override DAC perms.

Fixes: 03329f993978 ("tracing: Add tracefs file buffer_percentage")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>

Applied. Thanks Ondrej!

-- Steve