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| author | Roland McGrath <roland@redhat.com> | 2009-09-24 00:56:53 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-24 16:21:00 +0200 |
| commit | ae6d2ed7bb3877ff35b9569402025f40ea2e1803 (patch) | |
| tree | 80527061ab7615cd890236b777b2be6e909a1573 /mm | |
| parent | wait_noreap_copyout(): check for ->wo_info != NULL (diff) | |
| download | linux-ae6d2ed7bb3877ff35b9569402025f40ea2e1803.tar.xz linux-ae6d2ed7bb3877ff35b9569402025f40ea2e1803.zip | |
signals: tracehook_notify_jctl change
This changes tracehook_notify_jctl() so it's called with the siglock held,
and changes its argument and return value definition. These clean-ups
make it a better fit for what new tracing hooks need to check.
Tracing needs the siglock here, held from the time TASK_STOPPED was set,
to avoid potential SIGCONT races if it wants to allow any blocking in its
tracing hooks.
This also folds the finish_stop() function into its caller
do_signal_stop(). The function is short, called only once and only
unconditionally. It aids readability to fold it in.
[oleg@redhat.com: do not call tracehook_notify_jctl() in TASK_STOPPED state]
[oleg@redhat.com: introduce tracehook_finish_jctl() helper]
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions