mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2024-12-28 00:32:00 +00:00
8282947f67
Similar to rw_semaphores, on RT the rwlock substitution is not writer fair, because it's not feasible to have a writer inherit its priority to multiple readers. Readers blocked on a writer follow the normal rules of priority inheritance. Like RT spinlocks, RT rwlocks are state preserving across the slow lock operations (contended case). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210815211303.882793524@linutronix.de
262 lines
4.9 KiB
Plaintext
262 lines
4.9 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# The ARCH_INLINE foo is necessary because select ignores "depends on"
|
|
#
|
|
config ARCH_INLINE_SPIN_TRYLOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_TRYLOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_LOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_LOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_LOCK_IRQ
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_LOCK_IRQSAVE
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_UNLOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_UNLOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_UNLOCK_IRQ
|
|
bool
|
|
|
|
config ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
|
|
bool
|
|
|
|
|
|
config ARCH_INLINE_READ_TRYLOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_LOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_LOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_LOCK_IRQ
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_LOCK_IRQSAVE
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_UNLOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_UNLOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_UNLOCK_IRQ
|
|
bool
|
|
|
|
config ARCH_INLINE_READ_UNLOCK_IRQRESTORE
|
|
bool
|
|
|
|
|
|
config ARCH_INLINE_WRITE_TRYLOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_LOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_LOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_LOCK_IRQ
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_LOCK_IRQSAVE
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_UNLOCK
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_UNLOCK_BH
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_UNLOCK_IRQ
|
|
bool
|
|
|
|
config ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
|
|
bool
|
|
|
|
config UNINLINE_SPIN_UNLOCK
|
|
bool
|
|
|
|
#
|
|
# lock_* functions are inlined when:
|
|
# - DEBUG_SPINLOCK=n and GENERIC_LOCKBREAK=n and ARCH_INLINE_*LOCK=y
|
|
#
|
|
# trylock_* functions are inlined when:
|
|
# - DEBUG_SPINLOCK=n and ARCH_INLINE_*LOCK=y
|
|
#
|
|
# unlock and unlock_irq functions are inlined when:
|
|
# - DEBUG_SPINLOCK=n and ARCH_INLINE_*LOCK=y
|
|
# or
|
|
# - DEBUG_SPINLOCK=n and PREEMPTION=n
|
|
#
|
|
# unlock_bh and unlock_irqrestore functions are inlined when:
|
|
# - DEBUG_SPINLOCK=n and ARCH_INLINE_*LOCK=y
|
|
#
|
|
|
|
if !DEBUG_SPINLOCK
|
|
|
|
config INLINE_SPIN_TRYLOCK
|
|
def_bool y
|
|
depends on ARCH_INLINE_SPIN_TRYLOCK
|
|
|
|
config INLINE_SPIN_TRYLOCK_BH
|
|
def_bool y
|
|
depends on ARCH_INLINE_SPIN_TRYLOCK_BH
|
|
|
|
config INLINE_SPIN_LOCK
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK
|
|
|
|
config INLINE_SPIN_LOCK_BH
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK_BH
|
|
|
|
config INLINE_SPIN_LOCK_IRQ
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK_IRQ
|
|
|
|
config INLINE_SPIN_LOCK_IRQSAVE
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK_IRQSAVE
|
|
|
|
config INLINE_SPIN_UNLOCK_BH
|
|
def_bool y
|
|
depends on ARCH_INLINE_SPIN_UNLOCK_BH
|
|
|
|
config INLINE_SPIN_UNLOCK_IRQ
|
|
def_bool y
|
|
depends on !PREEMPTION || ARCH_INLINE_SPIN_UNLOCK_IRQ
|
|
|
|
config INLINE_SPIN_UNLOCK_IRQRESTORE
|
|
def_bool y
|
|
depends on ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
|
|
|
|
|
|
config INLINE_READ_TRYLOCK
|
|
def_bool y
|
|
depends on ARCH_INLINE_READ_TRYLOCK
|
|
|
|
config INLINE_READ_LOCK
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK
|
|
|
|
config INLINE_READ_LOCK_BH
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK_BH
|
|
|
|
config INLINE_READ_LOCK_IRQ
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK_IRQ
|
|
|
|
config INLINE_READ_LOCK_IRQSAVE
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK_IRQSAVE
|
|
|
|
config INLINE_READ_UNLOCK
|
|
def_bool y
|
|
depends on !PREEMPTION || ARCH_INLINE_READ_UNLOCK
|
|
|
|
config INLINE_READ_UNLOCK_BH
|
|
def_bool y
|
|
depends on ARCH_INLINE_READ_UNLOCK_BH
|
|
|
|
config INLINE_READ_UNLOCK_IRQ
|
|
def_bool y
|
|
depends on !PREEMPTION || ARCH_INLINE_READ_UNLOCK_IRQ
|
|
|
|
config INLINE_READ_UNLOCK_IRQRESTORE
|
|
def_bool y
|
|
depends on ARCH_INLINE_READ_UNLOCK_IRQRESTORE
|
|
|
|
|
|
config INLINE_WRITE_TRYLOCK
|
|
def_bool y
|
|
depends on ARCH_INLINE_WRITE_TRYLOCK
|
|
|
|
config INLINE_WRITE_LOCK
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK
|
|
|
|
config INLINE_WRITE_LOCK_BH
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK_BH
|
|
|
|
config INLINE_WRITE_LOCK_IRQ
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK_IRQ
|
|
|
|
config INLINE_WRITE_LOCK_IRQSAVE
|
|
def_bool y
|
|
depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK_IRQSAVE
|
|
|
|
config INLINE_WRITE_UNLOCK
|
|
def_bool y
|
|
depends on !PREEMPTION || ARCH_INLINE_WRITE_UNLOCK
|
|
|
|
config INLINE_WRITE_UNLOCK_BH
|
|
def_bool y
|
|
depends on ARCH_INLINE_WRITE_UNLOCK_BH
|
|
|
|
config INLINE_WRITE_UNLOCK_IRQ
|
|
def_bool y
|
|
depends on !PREEMPTION || ARCH_INLINE_WRITE_UNLOCK_IRQ
|
|
|
|
config INLINE_WRITE_UNLOCK_IRQRESTORE
|
|
def_bool y
|
|
depends on ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
|
|
|
|
endif
|
|
|
|
config ARCH_SUPPORTS_ATOMIC_RMW
|
|
bool
|
|
|
|
config MUTEX_SPIN_ON_OWNER
|
|
def_bool y
|
|
depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
|
|
|
|
config RWSEM_SPIN_ON_OWNER
|
|
def_bool y
|
|
depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
|
|
|
|
config LOCK_SPIN_ON_OWNER
|
|
def_bool y
|
|
depends on MUTEX_SPIN_ON_OWNER || RWSEM_SPIN_ON_OWNER
|
|
|
|
config ARCH_USE_QUEUED_SPINLOCKS
|
|
bool
|
|
|
|
config QUEUED_SPINLOCKS
|
|
def_bool y if ARCH_USE_QUEUED_SPINLOCKS
|
|
depends on SMP
|
|
|
|
config BPF_ARCH_SPINLOCK
|
|
bool
|
|
|
|
config ARCH_USE_QUEUED_RWLOCKS
|
|
bool
|
|
|
|
config QUEUED_RWLOCKS
|
|
def_bool y if ARCH_USE_QUEUED_RWLOCKS
|
|
depends on SMP && !PREEMPT_RT
|
|
|
|
config ARCH_HAS_MMIOWB
|
|
bool
|
|
|
|
config MMIOWB
|
|
def_bool y if ARCH_HAS_MMIOWB
|
|
depends on SMP
|