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Merge branch 'for-5.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

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Pull cgroup fix from Tejun Heo:
 "The cgroup2 freezer pulled in this cycle broke strace. This pull
  request includes a workaround for the problem.

  It's not a complete fix in that it may cause spurious frozen state
  flip-flops which is fairly minor. Will push a full fix once it's
  ready"

* 'for-5.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  signal: unconditionally leave the frozen state in ptrace_stop()
This commit is contained in:
Linus Torvalds 2019-05-16 19:01:23 -07:00
commit 5f3ab27b9e
1 changed files with 1 additions and 0 deletions
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kernel/signal.c
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@ -2113,6 +2113,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, kernel_siginfo_t
preempt_enable_no_resched();
cgroup_enter_frozen();
freezable_schedule();
cgroup_leave_frozen(true);
} else {
/*
* By the time we got the lock, our tracer went away.