Version 4 already?
Small api changes since v3:
- Remove ww_mutex_unlock_single and ww_mutex_lock_single.
- Rename ww_mutex_trylock_single to ww_mutex_trylock.
- Remove separate implementations of ww_mutex_lock_slow*, normal
functions can be used. Inline versions still exist for extra
debugging, and to annotate.
- Cleanup unneeded memory barriers, add comment to the remaining
smp_mb().
Thanks to Daniel Vetter, Rob Clark and Peter Zijlstra for their feedback.
---
Daniel Vetter (1):
mutex: w/w mutex slowpath debugging
Maarten Lankhorst (3):
arch: make __mutex_fastpath_lock_retval return whether fastpath succeeded or not.
mutex: add support for wound/wait style locks, v5
mutex: Add ww tests to lib/locking-selftest.c. v4
Documentation/ww-mutex-design.txt | 344 +++++++++++++++++++++++++++++++
arch/ia64/include/asm/mutex.h | 10 -
arch/powerpc/include/asm/mutex.h | 10 -
arch/sh/include/asm/mutex-llsc.h | 4
arch/x86/include/asm/mutex_32.h | 11 -
arch/x86/include/asm/mutex_64.h | 11 -
include/asm-generic/mutex-dec.h | 10 -
include/asm-generic/mutex-null.h | 2
include/asm-generic/mutex-xchg.h | 10 -
include/linux/mutex-debug.h | 1
include/linux/mutex.h | 363 +++++++++++++++++++++++++++++++++
kernel/mutex.c | 384 ++++++++++++++++++++++++++++++++---
lib/Kconfig.debug | 13 +
lib/debug_locks.c | 2
lib/locking-selftest.c | 410 +++++++++++++++++++++++++++++++++++--
15 files changed, 1492 insertions(+), 93 deletions(-)
create mode 100644 Documentation/ww-mutex-design.txt
--
~Maarten
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