twx-linux/kernel/cgroup
Xiu Jianfeng 018ee567de cgroup/cpuset: Reduce the lock protecting CS_SCHED_LOAD_BALANCE
In the cpuset_css_online(), clearing the CS_SCHED_LOAD_BALANCE bit
of cs->flags is guarded by callback_lock and cpuset_mutex. There is
no problem with itself, because it is consistent with the description
of there two global lock at the beginning of this file. However, since
the operation of checking, setting and clearing the flag bit is atomic,
protection of callback_lock is unnecessary here, see CS_SPREAD_*. so
to make it more consistent with the other code, move the operation
outside the critical section of callback_lock.

No functional changes intended.

Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2024-06-01 07:06:17 -10:00
..
cgroup-internal.h cgroup: Add a new helper for cgroup1 hierarchy 2023-11-09 13:25:47 -10:00
cgroup-v1.c cgroup: Avoid unnecessary looping in cgroup_no_v1() 2024-04-19 05:43:36 -10:00
cgroup.c kernel/cgroup: cleanup cgroup_base_files when fail to add cgroup_psi_files 2024-05-26 08:48:11 -10:00
cpuset.c cgroup/cpuset: Reduce the lock protecting CS_SCHED_LOAD_BALANCE 2024-06-01 07:06:17 -10:00
debug.c
freezer.c
legacy_freezer.c cgroup, legacy_freezer: update comment for freezer_css_offline() 2024-04-18 06:01:50 -10:00
Makefile
misc.c cgroup/misc: Store atomic64_t reads to u64 2023-07-21 08:10:06 -10:00
namespace.c cgroup:namespace: Remove unused cgroup_namespaces_init() 2023-08-14 14:29:47 -10:00
pids.c cgroup/pids: Add pids.events.local 2024-05-26 08:45:10 -10:00
rdma.c rdmacg: fix kernel-doc warnings in rdmacg 2023-06-05 09:45:14 -10:00
rstat.c cgroup/rstat: add cgroup_rstat_cpu_lock helpers and tracepoints 2024-05-14 09:43:17 -10:00