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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 10:25:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 10:25:54 -0700 |
| commit | 94095a1fff89dffe9451839deae4c6a40cf3ec21 (patch) | |
| tree | c1beac5dc336d836c269253db3b00a302777598f /security | |
| parent | 620e77533f29796df7aff861e79bd72e08554ebb (diff) | |
| parent | f784e8a7989c0da3062d04bfea3db90f41e8f738 (diff) | |
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core kernel fixes from Ingo Molnar:
"This is a complex task_work series from Oleg that fixes the bug that
this VFS commit tried to fix:
d35abdb28824 hold task_lock around checks in keyctl
but solves the problem without the lockup regression that d35abdb28824
introduced in v3.6.
This series came late in v3.6 and I did not feel confident about it so
late in the cycle. Might be worth backporting to -stable if it proves
itself upstream."
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
task_work: Simplify the usage in ptrace_notify() and get_signal_to_deliver()
task_work: Revert "hold task_lock around checks in keyctl"
task_work: task_work_add() should not succeed after exit_task_work()
task_work: Make task_work_add() lockless
Diffstat (limited to 'security')
| -rw-r--r-- | security/keys/keyctl.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index 3364fbf46807..6cfc6478863e 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -1486,7 +1486,6 @@ long keyctl_session_to_parent(void) oldwork = NULL; parent = me->real_parent; - task_lock(parent); /* the parent mustn't be init and mustn't be a kernel thread */ if (parent->pid <= 1 || !parent->mm) goto unlock; @@ -1530,7 +1529,6 @@ long keyctl_session_to_parent(void) if (!ret) newwork = NULL; unlock: - task_unlock(parent); write_unlock_irq(&tasklist_lock); rcu_read_unlock(); if (oldwork) |