def idr_find(idr, id):
"""
.. c:function:: void *idr_find(struct idr *idr, unsigned long id)
Look up the entry with the given id in an IDR. If it is not found, this
returns a ``NULL`` object.
"""
# idr_base was added in v4.16.
try:
id -= idr.idr_base
except AttributeError:
pass
return radix_tree_lookup(idr.idr_rt, id)
def walk(self, blkcg, q_id, parent_path):
if not self.include_dying and \
not (blkcg.css.flags.value_() & prog['CSS_ONLINE'].value_()):
return
name = BlkgIterator.blkcg_name(blkcg)
path = parent_path + '/' + name if parent_path else name
blkg = drgn.Object(prog, 'struct blkcg_gq',
address=radix_tree_lookup(blkcg.blkg_tree, q_id))
if not blkg.address_:
return
self.blkgs.append((path if path else '/', blkg))
for c in list_for_each_entry('struct blkcg',
blkcg.css.children.address_of_(), 'css.sibling'):
self.walk(c, q_id, path)