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51c70a09c3
The usage of page table locks in TLB fault handler is usually only needed when debugging the kernel. So make this configuration option dependend on DEBUG_KERNEL. Signed-off-by: Helge Deller <deller@gmx.de>
23 lines
776 B
Text
23 lines
776 B
Text
# SPDX-License-Identifier: GPL-2.0
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#
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config LIGHTWEIGHT_SPINLOCK_CHECK
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bool "Enable lightweight spinlock checks"
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depends on DEBUG_KERNEL && SMP && !DEBUG_SPINLOCK
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default y
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help
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Add checks with low performance impact to the spinlock functions
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to catch memory overwrites at runtime. For more advanced
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spinlock debugging you should choose the DEBUG_SPINLOCK option
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which will detect unitialized spinlocks too.
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If unsure say Y here.
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config TLB_PTLOCK
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bool "Use page table locks in TLB fault handler"
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depends on DEBUG_KERNEL && SMP
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default n
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help
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Select this option to enable page table locking in the TLB
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fault handler. This ensures that page table entries are
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updated consistently on SMP machines at the expense of some
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loss in performance.
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