Inter-revision diff: cover letter

Comparing v5 (message) to v6 (message)

--- v5
+++ v6
@@ -13,10 +13,23 @@
  - A good discussion at Platform HSC.2021-03-08:
    https://drive.google.com/drive/folders/1ooqdnIsYx7XKor5O1XTtM6D1CHp4hc0p
 
+ - A good discussion on V4 in mailling list:
+   https://lore.kernel.org/linux-riscv/1616868399-82848-1-git-send-email-guoren@kernel.org/T/#t
+
+ - Openrisc's maintainer want to implement arch_cmpxchg infrastructure.
+   https://lore.kernel.org/linux-riscv/1616868399-82848-1-git-send-email-guoren@kernel.org/T/#m11b712fb6a4fda043811b1f4c3d61446951ed65a
+
 Hope your comments and Tested-by or Co-developed-by or Reviewed-by ...
 
 Let's kick the qspinlock into riscv right now (Also for the
 architecture which hasn't xchg16 atomic instruction.)
+
+Change V6:
+ - Add  ticket-lock for riscv, default is qspinlock
+ - Keep ticket-lock for csky,  default is ticketlock
+ - Using smp_cond_load for riscv ticket-lock
+ - Optimize csky ticketlock with smp_cond_load, store_release
+ - Add PPC_LBARX_LWARX for powerpc 
 
 Change V5:
  - Fixup #endif comment typo by Waiman
@@ -36,32 +49,34 @@
  - Re-implement short xchg
  - Remove char & cmpxchg implementations
 
-Guo Ren (6):
+Guo Ren (8):
   locking/qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32
+  riscv: locks: Introduce ticket-based spinlock implementation
+  csky: locks: Optimize coding convention
   csky: Convert custom spinlock/rwlock to generic qspinlock/qrwlock
-  powerpc/qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32
   openrisc: qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32
   sparc: qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32
   xtensa: qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32
+  powerpc/qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32
 
 Michael Clark (1):
   riscv: Convert custom spinlock/rwlock to generic qspinlock/qrwlock
 
- arch/csky/Kconfig                       |   2 +
+ arch/csky/Kconfig                       |   8 ++
  arch/csky/include/asm/Kbuild            |   2 +
- arch/csky/include/asm/spinlock.h        |  82 +--------------
- arch/csky/include/asm/spinlock_types.h  |  16 +--
+ arch/csky/include/asm/spinlock.h        |  15 +--
+ arch/csky/include/asm/spinlock_types.h  |   4 +
  arch/openrisc/Kconfig                   |   1 +
  arch/powerpc/Kconfig                    |   1 +
- arch/riscv/Kconfig                      |   3 +
+ arch/riscv/Kconfig                      |   8 ++
  arch/riscv/include/asm/Kbuild           |   3 +
- arch/riscv/include/asm/spinlock.h       | 126 +-----------------------
- arch/riscv/include/asm/spinlock_types.h |  15 +--
+ arch/riscv/include/asm/spinlock.h       | 158 +++++++++---------------
+ arch/riscv/include/asm/spinlock_types.h |  26 ++--
  arch/sparc/Kconfig                      |   1 +
  arch/xtensa/Kconfig                     |   1 +
  kernel/Kconfig.locks                    |   3 +
- kernel/locking/qspinlock.c              |  46 +++++----
- 14 files changed, 49 insertions(+), 253 deletions(-)
+ kernel/locking/qspinlock.c              |  46 +++----
+ 14 files changed, 142 insertions(+), 135 deletions(-)
 
 -- 
 2.17.1
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