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| author | Alex Shi <alex.shi@linaro.org> | 2016-10-18 12:31:07 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-10-18 12:31:07 +0800 |
| commit | a66f9577c6e5280d83d45152aea29cf5e4548858 (patch) | |
| tree | ebb42fa6ef16a535adbd5acb8cc79bdd2980da24 /kernel/fork.c | |
| parent | 26700159745df7db2bc75e8032d2a36913c37880 (diff) | |
| parent | 2308e34317c8cc7beb03a3d18dc39d32015eff06 (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index a1d163250909..18a5cb17035a 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -902,14 +902,12 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm) deactivate_mm(tsk, mm); /* - * If we're exiting normally, clear a user-space tid field if - * requested. We leave this alone when dying by signal, to leave - * the value intact in a core dump, and to save the unnecessary - * trouble, say, a killed vfork parent shouldn't touch this mm. - * Userland only wants this done for a sys_exit. + * Signal userspace if we're not exiting with a core dump + * because we want to leave the value intact for debugging + * purposes. */ if (tsk->clear_child_tid) { - if (!(tsk->flags & PF_SIGNALED) && + if (!(tsk->signal->flags & SIGNAL_GROUP_COREDUMP) && atomic_read(&mm->mm_users) > 1) { /* * We don't check the error code - if userspace has |