https://github.com/torvalds/linux
Revision 61e150fb310729c98227a5edf6e4a3619edc3702 authored by Helge Deller on 24 May 2023, 15:07:07 UTC, committed by Helge Deller on 24 May 2023, 17:03:49 UTC
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>
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Tip revision: 61e150fb310729c98227a5edf6e4a3619edc3702 authored by Helge Deller on 24 May 2023, 15:07:07 UTC
parisc: Fix flush_dcache_page() for usage from irq context
parisc: Fix flush_dcache_page() for usage from irq context
Tip revision: 61e150f
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
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| .clang-format | -rw-r--r-- | 20.1 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 151 bytes |
| .gitattributes | -rw-r--r-- | 90 bytes |
| .gitignore | -rw-r--r-- | 2.1 KB |
| .mailmap | -rw-r--r-- | 27.9 KB |
| .rustfmt.toml | -rw-r--r-- | 369 bytes |
| COPYING | -rw-r--r-- | 496 bytes |
| CREDITS | -rw-r--r-- | 100.1 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
| MAINTAINERS | -rw-r--r-- | 693.1 KB |
| Makefile | -rw-r--r-- | 70.1 KB |
| README | -rw-r--r-- | 727 bytes |
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