diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2022-02-09 09:51:14 -0600 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2022-03-10 16:51:36 -0600 |
| commit | 8ba62d37949e248c698c26e0d82d72fda5d33ebf (patch) | |
| tree | 1faa152e80c54f5bcb1f740ec43d8537c3d42f17 /kernel/entry/kvm.c | |
| parent | 7f62d40d9cb50fd146fe8ff071f98fa3c1855083 (diff) | |
task_work: Call tracehook_notify_signal from get_signal on all architectures
Always handle TIF_NOTIFY_SIGNAL in get_signal. With commit 35d0b389f3b2
("task_work: unconditionally run task_work from get_signal()") always
calling task_work_run all of the work of tracehook_notify_signal is
already happening except clearing TIF_NOTIFY_SIGNAL.
Factor clear_notify_signal out of tracehook_notify_signal and use it in
get_signal so that get_signal only needs one call of task_work_run.
To keep the semantics in sync update xfer_to_guest_mode_work (which
does not call get_signal) to call tracehook_notify_signal if either
_TIF_SIGPENDING or _TIF_NOTIFY_SIGNAL.
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20220309162454.123006-8-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'kernel/entry/kvm.c')
| -rw-r--r-- | kernel/entry/kvm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/entry/kvm.c b/kernel/entry/kvm.c index 96d476e06c77..cabf36a489e4 100644 --- a/kernel/entry/kvm.c +++ b/kernel/entry/kvm.c @@ -8,7 +8,7 @@ static int xfer_to_guest_mode_work(struct kvm_vcpu *vcpu, unsigned long ti_work) do { int ret; - if (ti_work & _TIF_NOTIFY_SIGNAL) + if (ti_work & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL)) tracehook_notify_signal(); if (ti_work & _TIF_SIGPENDING) { |