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authorThomas Gleixner <tglx@linutronix.de>2020-11-18 20:48:39 +0100
committerThomas Gleixner <tglx@linutronix.de>2020-11-24 14:42:08 +0100
commit6e799cb69a70eedbb41561b750f7180c12cff280 (patch)
treeee6b2c78fb94daef46d0da949e4bad4f2efdd070 /mm/ksm.c
parent13c8da5db43ad6d9b8637295ff50ddb66a0af05f (diff)
downloadlinux-6e799cb69a70eedbb41561b750f7180c12cff280.tar.gz
mm/highmem: Provide and use CONFIG_DEBUG_KMAP_LOCAL
CONFIG_KMAP_LOCAL can be enabled by x86/32bit even if CONFIG_HIGHMEM is not
enabled for temporary MMIO space mappings.

Provide it as a seperate config option which depends on CONFIG_KMAP_LOCAL
and let CONFIG_DEBUG_HIGHMEM select it.

This won't increase the debug coverage of this significantly but it paves
the way to do so.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20201118204006.869487226@linutronix.de

Diffstat (limited to 'mm/ksm.c')
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