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Merge branch 'for-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 

Pull urgent cgroup fix from Tejun Heo:
 "Commit 61d1d219c4 ('cgroup: remove extra calls to
  find_existing_css_set') which was part of the rc1 cgroup pull request
  made writes to the cgroup "tasks" file return an uninitialized retval
  on success which can cause boot failures with systemd.

  The change stayed in linux-next for quite some time but gcc
  interestingly failed to emit warning about using uninitialized
  variable and the problem seems to materialize only for certain build
  combinations (probably depends on register allocation).

  It's just missing local variable initialization and the fix is trivial
  & safe.  As the problem is critical when it materializes, I'm
  fast-tracking it.  Also included is Li's email address change in
  MAINTAINERS."

* 'for-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: cgroup_attach_task() could return -errno after success
  cgroup: update MAINTAINERS entry
wifi-calibration
Linus Torvalds 2012-03-29 22:33:10 -07:00
parent 4bde23f875 8f121918f2
commit 1338631433
2 changed files with 2 additions and 2 deletions
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2
MAINTAINERS
View File

@ -1940,7 +1940,7 @@ F: drivers/connector/
CONTROL GROUPS (CGROUPS)
M: Tejun Heo <tj@kernel.org>
M: Li Zefan <lizf@cn.fujitsu.com>
M: Li Zefan <lizefan@huawei.com>
L: containers@lists.linux-foundation.org
L: cgroups@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git

2
kernel/cgroup.c
View File

@ -1883,7 +1883,7 @@ static void cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp,
*/
int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
{
int retval;
int retval = 0;
struct cgroup_subsys *ss, *failed_ss = NULL;
struct cgroup *oldcgrp;
struct cgroupfs_root *root = cgrp->root;