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author | 2012-12-03 09:28:18 +0800 | |
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committer | 2012-12-03 08:33:11 -0800 | |
commit | 7083d0378a1746f2b45729cae494c6b92e75d73f (patch) | |
tree | bc2a732ffe1e9b4337a55b3fb7cc215a27159053 /tools/perf/scripts/python/export-to-postgresql.py | |
parent | cgroup: use cgroup_addrm_files() in cgroup_clear_directory() (diff) | |
download | linux-dev-7083d0378a1746f2b45729cae494c6b92e75d73f.tar.xz linux-dev-7083d0378a1746f2b45729cae494c6b92e75d73f.zip |
cgroup: remove subsystem files when remounting cgroup
cgroup_clear_directroy is called by cgroup_d_remove_dir
and cgroup_remount.
when we call cgroup_remount to remount the cgroup,the subsystem
may be unlinked from cgroupfs_root->subsys_list in rebind_subsystem,this
subsystem's files will not be removed in cgroup_clear_directroy.
And the system will panic when we try to access these files.
this patch removes subsystems's files before rebind_subsystems,
if rebind_subsystems failed, repopulate these removed files.
With help from Tejun.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions