Commit-ID: 91c6180572e2fec71701d646ffc40ad30986275c Gitweb: http://git.kernel.org/tip/91c6180572e2fec71701d646ffc40ad30986275c Author: Andy Lutomirski <luto@xxxxxxxxxx> AuthorDate: Tue, 3 May 2016 10:31:52 -0700 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Wed, 4 May 2016 08:34:14 +0200 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@xxxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Aleksa Sarai <cyphar@xxxxxxxxxx> Cc: Amanieu d'Antras <amanieu@xxxxxxxxx> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Brian Gerst <brgerst@xxxxxxxxx> Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx> Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx> Cc: H. Peter Anvin <hpa@xxxxxxxxx> Cc: Heinrich Schuchardt <xypron.glpk@xxxxxx> Cc: Jason Low <jason.low2@xxxxxx> Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx> Cc: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx> Cc: Paul Moore <pmoore@xxxxxxxxxx> Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Richard Weinberger <richard@xxxxxx> Cc: Sasha Levin <sasha.levin@xxxxxxxxxx> Cc: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> Cc: Stas Sergeev <stsp@xxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> Cc: linux-api@xxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/bb996508a600af14b406810c3d58fe0e0d0afe0d.1462296606.git.luto@xxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- include/uapi/linux/signal.h | 2 +- tools/testing/selftests/sigaltstack/sas.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/signal.h b/include/uapi/linux/signal.h index 7388260..cd0804b 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 diff --git a/tools/testing/selftests/sigaltstack/sas.c b/tools/testing/selftests/sigaltstack/sas.c index 4280d06..1bb0125 100644 --- a/tools/testing/selftests/sigaltstack/sas.c +++ b/tools/testing/selftests/sigaltstack/sas.c @@ -18,7 +18,7 @@ #include <errno.h> #ifndef SS_AUTODISARM -#define SS_AUTODISARM (1 << 4) +#define SS_AUTODISARM (1U << 31) #endif static void *sstack, *ustack; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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