Hi Linus,
Please pull these three arm64 fixes for -rc5. The main thing is a fix to
our FUTEX_WAKE_OP implementation which was unbelievably broken, but did
actually work for the one scenario that GLIBC used to use.
Summary in the tag.
Thanks,
Will
--->8
The following changes since commit 15ade5d2e7775667cf191cf2f94327a4889f8b9d:
Linux 5.1-rc4 (2019-04-07 14:09:59 -1000)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-fixes
for you to fetch changes up to 045afc24124d80c6998d9c770844c67912083506:
arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
(2019-04-12 15:04:33 +0100)
----------------------------------------------------------------
arm64 fixes for -rc5
- Fix stack unwinding so we ignore user stacks
- Fix ftrace module PLT trampoline initialisation checks
- Fix terminally broken implementation of FUTEX_WAKE_OP atomics
----------------------------------------------------------------
Ard Biesheuvel (1):
arm64/ftrace: fix inadvertent BUG() in trampoline check
Will Deacon (2):
arm64: backtrace: Don't bother trying to unwind the userspace stack
arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
arch/arm64/include/asm/futex.h | 16 ++++++++--------
arch/arm64/include/asm/module.h | 5 +++++
arch/arm64/kernel/ftrace.c | 3 +--
arch/arm64/kernel/traps.c | 15 +++++++++------
4 files changed, 23 insertions(+), 16 deletions(-)
