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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ee6ee49fd0
Fix a potential race when disabling MSI/MSI-X on a VMD domain device. If the VMD interrupt service is running, it may see a disabled IRQ. We can synchronize RCU just before freeing the MSI descriptor. This is safe since the irq_desc lock isn't held, and the descriptor is valid even though it is disabled. After vmd_msi_free(), though, the handler is reinitialized to handle_bad_irq(), so we can't let the VMD ISR's list iteration see the disabled IRQ after this. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by Jon Derrick: <jonathan.derrick@intel.com> |
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| .. | ||
| boot | ||
| configs | ||
| crypto | ||
| entry | ||
| events | ||
| ia32 | ||
| include | ||
| kernel | ||
| kvm | ||
| lguest | ||
| lib | ||
| math-emu | ||
| mm | ||
| net | ||
| oprofile | ||
| pci | ||
| platform | ||
| power | ||
| purgatory | ||
| ras | ||
| realmode | ||
| tools | ||
| um | ||
| video | ||
| xen | ||
| .gitignore | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.cpu | ||
| Kconfig.debug | ||
| Makefile | ||
| Makefile_32.cpu | ||
| Makefile.um | ||