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authorAndy Lutomirski <luto@kernel.org>2016-05-03 10:31:52 -0700
committerIngo Molnar <mingo@kernel.org>2016-05-04 08:34:14 +0200
commit91c6180572e2fec71701d646ffc40ad30986275c (patch)
tree744511878c8c2c3a4969632ad3c453c2d7d8c15c /include/uapi
parent0318bc8a919ded355eaa5078689924a15c1bf52a (diff)
signals/sigaltstack: Change SS_AUTODISARM to (1U << 31)
Using bit 4 divides the space of available bits strangely. Use bit 31 instead so that we have a better chance of keeping flag and mode bits separate in the long run. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Aleksa Sarai <cyphar@cyphar.com> Cc: Amanieu d'Antras <amanieu@gmail.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Cc: Jason Low <jason.low2@hp.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Moore <pmoore@redhat.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Richard Weinberger <richard@nod.at> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Stas Sergeev <stsp@list.ru> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vladimir Davydov <vdavydov@parallels.com> Cc: linux-api@vger.kernel.org Link: http://lkml.kernel.org/r/bb996508a600af14b406810c3d58fe0e0d0afe0d.1462296606.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/signal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/signal.h b/include/uapi/linux/signal.h
index 738826048af2..cd0804b6bfa2 100644
--- a/include/uapi/linux/signal.h
+++ b/include/uapi/linux/signal.h
@@ -8,7 +8,7 @@
#define SS_DISABLE 2
/* bit-flags */
-#define SS_AUTODISARM (1 << 4) /* disable sas during sighandling */
+#define SS_AUTODISARM (1U << 31) /* disable sas during sighandling */
/* mask for all SS_xxx flags */
#define SS_FLAG_BITS SS_AUTODISARM