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| author | Oleg Nesterov <oleg@redhat.com> | 2014-12-10 15:55:20 -0800 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2019-05-02 18:28:27 +0200 |
| commit | 31efea701a4d2b2177f58f080ef661a0387b09bf (patch) | |
| tree | d51ff5a9461223b92f1a8a38c2fe8b7a8729e349 /Documentation/basic_profiling.txt | |
| parent | 45c55b7921a4288814c952c23fa1edc649eed047 (diff) | |
exit: reparent: call forget_original_parent() under tasklist_lock
Shift "release dead children" loop from forget_original_parent() to its
caller, exit_notify(). It is safe to reap them even if our parent reaps
us right after we drop tasklist_lock, those children no longer have any
connection to the exiting task.
And this allows us to avoid write_lock_irq(tasklist_lock) right after it
was released by forget_original_parent(), we can simply call it with
tasklist_lock held.
While at it, move the comment about forget_original_parent() up to
this function.
Change-Id: I3a9a2880d44bdc3b828014187d3aee098f1ce860
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Sterling Alexander <stalexan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/basic_profiling.txt')
0 files changed, 0 insertions, 0 deletions