renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-04 03:14:02 +08:00
Code

Merge branch 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Browse Source 
Pull cgroup fixes from Tejun Heo:
 "Three cgroup fixes.  Nothing critical:

   - the pids controller could trigger suspicious RCU warning
     spuriously. Fixed.

   - in the debug controller, %p -> %pK to protect kernel pointer
     from getting exposed.

   - documentation formatting fix"

* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroups: censor kernel pointer in debug files
  cgroup/pids: remove spurious suspicious RCU usage warning
  cgroup: Fix indenting in PID controller documentation
This commit is contained in:
Linus Torvalds 2017-03-14 15:11:19 -07:00
commit 352526f453
3 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Documentation/cgroup-v2.txt
View File

@ -1142,8 +1142,8 @@ used by the kernel.
pids.max
A read-write single value file which exists on non-root cgroups. The
default is "max".
A read-write single value file which exists on non-root
cgroups. The default is "max".
Hard limit of number of processes.
@ -1151,7 +1151,8 @@ used by the kernel.
A read-only single value file which exists on all cgroups.
The number of processes currently in the cgroup and its descendants.
The number of processes currently in the cgroup and its
descendants.
Organisational operations are not blocked by cgroup policies, so it is
possible to have pids.current > pids.max. This can be done by either

2
kernel/cgroup/cgroup-v1.c
View File

@ -1329,7 +1329,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
struct task_struct *task;
int count = 0;
seq_printf(seq, "css_set %p\n", cset);
seq_printf(seq, "css_set %pK\n", cset);
list_for_each_entry(task, &cset->tasks, cg_list) {
if (count++ > MAX_TASKS_SHOWN_PER_CSS)

2
kernel/cgroup/pids.c
View File

@ -229,7 +229,7 @@ static int pids_can_fork(struct task_struct *task)
/* Only log the first time events_limit is incremented. */
if (atomic64_inc_return(&pids->events_limit) == 1) {
pr_info("cgroup: fork rejected by pids controller in ");
pr_cont_cgroup_path(task_cgroup(current, pids_cgrp_id));
pr_cont_cgroup_path(css->cgroup);
pr_cont("\n");
}
cgroup_file_notify(&pids->events_file);