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authorJerry Snitselaar <jsnitsel@redhat.com>2022-08-23 09:37:09 -0700
committerVinod Koul <vkoul@kernel.org>2022-09-04 21:58:05 +0530
commit407171717a4f4d2d80825584643374a2dfdb0540 (patch)
tree6dcaac81af4482544422d370114898827233e412 /tools/perf/scripts/python/export-to-postgresql.py
parent5abef9d713629d7201b1a3dd1fe6a8baa869da68 (diff)
dmaengine: idxd: avoid deadlock in process_misc_interrupts()
idxd_device_clear_state() now grabs the idxd->dev_lock itself, so don't grab the lock prior to calling it. This was seen in testing after dmar fault occurred on system, resulting in lockup stack traces. Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Vinod Koul <vkoul@kernel.org> Cc: dmaengine@vger.kernel.org Fixes: cf4ac3fef338 ("dmaengine: idxd: fix lockdep warning on device driver removal") Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/20220823163709.2102468-1-jsnitsel@redhat.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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