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authorChristian Brauner <christian@brauner.io>2018-08-21 22:00:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-22 10:52:51 -0700
commitacd14e62f075f44cd04e1ac2920a515f9b80146e (patch)
treef4d0f459bf35e0a7a6182a5e6afe6fc4bdb04d4a /kernel
parent8f11351eee9524c179361fcbf1538c993f2390e4 (diff)
downloadlinux-acd14e62f075f44cd04e1ac2920a515f9b80146e.tar.bz2
signal: make wants_signal() return bool
wants_signal() already behaves like a boolean function. Let's actually declare it as such too. Link: http://lkml.kernel.org/r/20180602103653.18181-15-christian@brauner.io Signed-off-by: Christian Brauner <christian@brauner.io> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Morris <james.morris@microsoft.com> Cc: Kees Cook <keescook@chromium.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/signal.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index fe0e9e82ce44..0e48dbc6649e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -879,16 +879,20 @@ static bool prepare_signal(int sig, struct task_struct *p, bool force)
* as soon as they're available, so putting the signal on the shared queue
* will be equivalent to sending it to one such thread.
*/
-static inline int wants_signal(int sig, struct task_struct *p)
+static inline bool wants_signal(int sig, struct task_struct *p)
{
if (sigismember(&p->blocked, sig))
- return 0;
+ return false;
+
if (p->flags & PF_EXITING)
- return 0;
+ return false;
+
if (sig == SIGKILL)
- return 1;
+ return true;
+
if (task_is_stopped_or_traced(p))
- return 0;
+ return false;
+
return task_curr(p) || !signal_pending(p);
}