tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
fork atom

Documentation/features/locking: update lists

The locking feature lists don't match reality as of v5.3-rc1:

* arm64 moved to queued spinlocks in commit:
c11090474d70590170cf5fa6afe85864ab494b37
("arm64: locking: Replace ticket lock implementation with qspinlock")

* xtensa moved to queued spinlocks and rwlocks in commit:
579afe866f52adcd921272a224ab36733051059c
("xtensa: use generic spinlock/rwlock implementation")

* architecture-specific rwsem support was removed in commit:
46ad0840b1584b92b5ff2cc3ed0b011dd6b8e0f1
("locking/rwsem: Remove arch specific rwsem files")

So update the feature lists accordingly, and remove the now redundant
rwsem-optimized list.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

authored by

Mark Rutland and committed by
Jonathan Corbet da422ade 32630d52

+3 -37
+1 -1
Documentation/features/locking/queued-rwlocks/arch-support.txt
··· 30 30 | um: | TODO | 31 31 | unicore32: | TODO | 32 32 | x86: | ok | 33 - | xtensa: | TODO | 33 + | xtensa: | ok | 34 34 -----------------------
+2 -2
Documentation/features/locking/queued-spinlocks/arch-support.txt
··· 9 9 | alpha: | TODO | 10 10 | arc: | TODO | 11 11 | arm: | TODO | 12 - | arm64: | TODO | 12 + | arm64: | ok | 13 13 | c6x: | TODO | 14 14 | csky: | TODO | 15 15 | h8300: | TODO | ··· 30 30 | um: | TODO | 31 31 | unicore32: | TODO | 32 32 | x86: | ok | 33 - | xtensa: | TODO | 33 + | xtensa: | ok | 34 34 -----------------------
-34
Documentation/features/locking/rwsem-optimized/arch-support.txt
··· 1 - # 2 - # Feature name: rwsem-optimized 3 - # Kconfig: !RWSEM_GENERIC_SPINLOCK 4 - # description: arch provides optimized rwsem APIs 5 - # 6 - ----------------------- 7 - | arch |status| 8 - ----------------------- 9 - | alpha: | ok | 10 - | arc: | TODO | 11 - | arm: | ok | 12 - | arm64: | ok | 13 - | c6x: | TODO | 14 - | csky: | TODO | 15 - | h8300: | TODO | 16 - | hexagon: | TODO | 17 - | ia64: | ok | 18 - | m68k: | TODO | 19 - | microblaze: | TODO | 20 - | mips: | TODO | 21 - | nds32: | TODO | 22 - | nios2: | TODO | 23 - | openrisc: | TODO | 24 - | parisc: | TODO | 25 - | powerpc: | TODO | 26 - | riscv: | TODO | 27 - | s390: | ok | 28 - | sh: | ok | 29 - | sparc: | ok | 30 - | um: | ok | 31 - | unicore32: | TODO | 32 - | x86: | ok | 33 - | xtensa: | ok | 34 - -----------------------