From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 11 May 2022 18:52:52 +0000 (+0200)
Subject: Merge tag 'generic-ticket-spinlocks-v6' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: for-5.19/block-exec-2022-06-02~30^2~2
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=03a679a1a4ec8fbe44119a6d06eeabdf7944883d;p=linux-block.git

Merge tag 'generic-ticket-spinlocks-v6' of git://git./linux/kernel/git/palmer/linux into asm-generic

asm-generic: New generic ticket-based spinlock

This contains a new ticket-based spinlock that uses only generic
atomics and doesn't require as much from the memory system as qspinlock
does in order to be fair.  It also includes a bit of documentation about
the qspinlock and qrwlock fairness requirements.

This will soon be used by a handful of architectures that don't meet the
qspinlock requirements.

* tag 'generic-ticket-spinlocks-v6' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux:
  csky: Move to generic ticket-spinlock
  RISC-V: Move to queued RW locks
  RISC-V: Move to generic spinlocks
  openrisc: Move to ticket-spinlock
  asm-generic: qrwlock: Document the spinlock fairness requirements
  asm-generic: qspinlock: Indicate the use of mixed-size atomics
  asm-generic: ticket-lock: New generic ticket-based spinlock
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03a679a1a4ec8fbe44119a6d06eeabdf7944883d