Commit 3402c6ce authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

selftests/damon/_damon_sysfs: implement updat_schemes_tried_bytes command 

Implement update_schemes_tried_bytes command of DAMON sysfs interface in
_damon_sysfs.py.  It is not only making the update, but also read the
updated value from the sysfs interface and store it in the Kdamond python
objects so that the user of the module can easily get the value.

Link: https://lkml.kernel.org/r/20231212194810.54457-4-sj@kernel.org


Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent f5f0e5a2

tools/testing/selftests/damon/_damon_sysfs.py

+14 −0
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ class Damos: 
    # todo: Support quotas, watermarks, stats, tried_regions

    idx = None

    context = None

    tried_bytes = None



    def __init__(self, action='stat', access_pattern=DamosAccessPattern()):

        self.action = action
@@ -284,6 +285,19 @@ class Kdamond: 
        err = write_file(os.path.join(self.sysfs_dir(), 'state'), 'on')

        return err



    def update_schemes_tried_bytes(self):

        err = write_file(os.path.join(self.sysfs_dir(), 'state'),

                'update_schemes_tried_bytes')

        if err != None:

            return err

        for context in self.contexts:

            for scheme in context.schemes:

                content, err = read_file(os.path.join(scheme.sysfs_dir(),

                    'tried_regions', 'total_bytes'))

                if err != None:

                    return err

                scheme.tried_bytes = int(content)



class Kdamonds:

    kdamonds = []