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ARC/sh/xtensa: Provide one-byte cmpxchg emulation

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This series provides emulated one-byte cmpxchg() support for ARM, sh,
 and xtensa using the cmpxchg_emu_u8() function that uses a four-byte
 cmpxchg() to emulate the one-byte variant.  This covers all architectures.
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Merge tag 'cmpxchg.2024.09.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull byte cmpxchg updates from Paul McKenney:
 "ARC/sh/xtensa: Provide one-byte cmpxchg emulation

  This series provides emulated one-byte cmpxchg() support for ARM, sh,
  and xtensa using the cmpxchg_emu_u8() function that uses a four-byte
  cmpxchg() to emulate the one-byte variant.

  This covers all architectures"

* tag 'cmpxchg.2024.09.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  xtensa: Emulate one-byte cmpxchg
  sh: Emulate one-byte cmpxchg
  ARC: Emulate one-byte cmpxchg
This commit is contained in:
Linus Torvalds 2024-09-16 07:34:24 +02:00
commit 980bcd35ae
6 changed files with 12 additions and 2 deletions
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