From: ebiederm@xmission.com (Eric W. Biederman)
To: <linux-kernel@vger.kernel.org>
Cc: <linux-fsdevel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>, Jann Horn <jannh@google.com>,
Kees Cook <keescook@chromium.org>,
Bernd Edlinger <bernd.edlinger@hotmail.de>
Subject: [PATCH v2 1/6] signal: Pretty up the SIGNAL_GROUP_FLAGS
Date: Tue, 23 Jun 2020 16:53:29 -0500 [thread overview]
Message-ID: <87lfkdla92.fsf_-_@x220.int.ebiederm.org> (raw)
In-Reply-To: <87r1u5laac.fsf@x220.int.ebiederm.org> (Eric W. Biederman's message of "Tue, 23 Jun 2020 16:52:43 -0500")
Renumber the flags that go in sig->flags giving different groups of
flags different hex digits.
This is needed so that future additions of flags can be adjacent.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
include/linux/sched/signal.h | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 0ee5e696c5d8..b4f36a11be5e 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -241,20 +241,22 @@ struct signal_struct {
*/
#define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */
#define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */
-#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */
-#define SIGNAL_GROUP_COREDUMP 0x00000008 /* coredump in progress */
-/*
- * Pending notifications to parent.
- */
+
+/* Pending notifications to parent. */
#define SIGNAL_CLD_STOPPED 0x00000010
#define SIGNAL_CLD_CONTINUED 0x00000020
#define SIGNAL_CLD_MASK (SIGNAL_CLD_STOPPED|SIGNAL_CLD_CONTINUED)
-#define SIGNAL_UNKILLABLE 0x00000040 /* for init: ignore fatal signals */
-
#define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \
SIGNAL_STOP_CONTINUED)
+/* Signal group actions. */
+#define SIGNAL_GROUP_EXIT 0x00000100 /* group exit in progress */
+#define SIGNAL_GROUP_COREDUMP 0x00000200 /* coredump in progress */
+
+/* Flags applicable to the entire signal group. */
+#define SIGNAL_UNKILLABLE 0x00001000 /* for init: ignore fatal signals */
+
static inline void signal_set_stop_flags(struct signal_struct *sig,
unsigned int flags)
{
--
2.20.1
next prev parent reply other threads:[~2020-06-23 21:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-19 18:30 [PATCH 0/2] exec: s/group_exit_task/group_exec_task/ for clarity Eric W. Biederman
2020-06-19 18:32 ` [PATCH 1/2] exec: Don't set group_exit_task during a coredump Eric W. Biederman
2020-06-20 18:58 ` Linus Torvalds
2020-06-22 16:20 ` Eric W. Biederman
2020-06-22 16:32 ` Linus Torvalds
2020-06-22 11:25 ` Oleg Nesterov
2020-06-19 18:33 ` [PATCH 2/2] exec: Rename group_exit_task group_exec_task and correct the Documentation Eric W. Biederman
2020-06-23 21:52 ` [PATCH v2 0/6] exec: s/group_exit_task/group_exec_task/ for clarity Eric W. Biederman
2020-06-23 21:53 ` Eric W. Biederman [this message]
2020-06-23 21:54 ` [PATCH v2 2/6] exec: Lock more defensively in exec Eric W. Biederman
2020-06-23 21:54 ` [PATCH v2 3/6] signal: Implement SIGNAL_GROUP_DETHREAD Eric W. Biederman
2020-06-23 21:55 ` [PATCH v2 4/6] signal: In signal_group_exit remove the group_exit_task test Eric W. Biederman
2020-06-23 21:55 ` [PATCH v2 5/6] coredump: Stop using group_exit_task Eric W. Biederman
2020-06-23 21:56 ` [PATCH v2 6/6] exec: Rename group_exit_task group_exec_task and correct the Documentation Eric W. Biederman
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