Hi all,
The following two patches do the following:
1. Fix boot breakage reported on s390 caused by a8a217c22116
2. Kill off the break_lock field entirely, since it's not actually
that useful
I didn't go the whole hog and remove CONFIG_GENERIC_LOCKBREAK, since the
"do something different with locks in preemptible kernels" isn't necessarily
a bad idea, and PowerPC actually implements things like arch_spin_relax
for that.
The first patch should go in to 4.15.
Thanks,
Will
--->8
Will Deacon (2):
locking/core: Fix deadlock during boot on systems with
GENERIC_LOCKBREAK
locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y
include/linux/rwlock_types.h | 3 ---
include/linux/spinlock.h | 5 -----
include/linux/spinlock_types.h | 3 ---
kernel/locking/spinlock.c | 13 +++----------
4 files changed, 3 insertions(+), 21 deletions(-)
--
2.1.4
