diff options
| author | Helge Deller <[email protected]> | 2023-08-22 14:27:49 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-08-24 23:20:31 +0000 |
| commit | 7db15418d390cf878d7c77ae08a4ad39f1534bc5 (patch) | |
| tree | 89c0d1cdfd00afdb004e131d62b03fd86480d310 /tools/perf/scripts/python | |
| parent | hugetlb: add documentation for vma_kernel_pagesize() (diff) | |
| download | kernel-7db15418d390cf878d7c77ae08a4ad39f1534bc5.tar.gz kernel-7db15418d390cf878d7c77ae08a4ad39f1534bc5.zip | |
nios2: 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 NIOS2
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.
Link: https://lkml.kernel.org/r/ZOTF5WWURQNH9+iw@p100
Signed-off-by: Helge Deller <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions