tree 85ccb2378700d58701e8b227108f97aaacedc449
parent 4623fe36cb979fe4177cc3d5ebd6dce3a26636d9
author Roman Kiryanov <rkir@google.com> 1560790852 -0700
committer Treehugger Robot <treehugger-gerrit@google.com> 1661470688 +0000

ANDROID: kernel: cgroup: cpuset: Clear cpus_requested for empty buf

update_cpumask had a special case for empty buf which
did not update cpus_requested. This change reduces
differences (only to parsing) in empty/non-empty codepaths
to make them consistent.

Bug: 243704317
Bug: 174125747
Bug: 120444281
Fixes: 4803def4e0b2 ("ANDROID: cpuset: Make cpusets restore on hotplug")
Test: check that writes to /dev/cpuset/background/tasks
Test: work as expected, e.g.:
Test: echo $$ > /dev/cpuset/background/tasks
Test: echo > /dev/cpuset/background/tasks
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I49d320ea046636ec38bd23f053317abc59f64f8e
[satyap@codeaurora.org: port to android-mainline kernel]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
[xuewn.yan@unisoc.com: port to android12-5.4 kernel]
Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>