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linux-stable/arch/parisc
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Helge Deller 61e150fb31 parisc: Fix flush_dcache_page() for usage from irq context 
Since at least kernel 6.1, flush_dcache_page() is called with IRQs
disabled, e.g. from aio_complete().

But the current implementation for flush_dcache_page() on parisc
unintentionally re-enables IRQs, which may lead to deadlocks.

Fix it by using xa_lock_irqsave() and xa_unlock_irqrestore()
for the flush_dcache_mmap_*lock() macros instead.

Cc: linux-parisc@vger.kernel.org
Cc: stable@kernel.org # 5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
2023-05-24 19:03:49 +02:00
..
boot
configs
include parisc: Fix flush_dcache_page() for usage from irq context 2023-05-24 19:03:49 +02:00
kernel parisc: Fix flush_dcache_page() for usage from irq context 2023-05-24 19:03:49 +02:00
lib
math-emu
mm parisc: fix livelock in uaccess 2023-03-02 12:31:40 -05:00
defpalo.conf
install.sh
Kbuild
Kconfig parisc: Enable LOCKDEP support 2023-05-24 14:27:28 +02:00
Kconfig.debug parisc: Add lightweight spinlock checks 2023-05-24 14:23:07 +02:00
Makefile