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| /linux/arch/s390/pci/ |
| H A D | pci_insn.c | diff a5f1005517534aeb1fac20180badfbf0896c183c Fri Dec 01 18:47:32 CET 2017 Sebastian Ott <sebott@linux.vnet.ibm.com> s390/pci: handle insufficient resources during dma tlb flush
In a virtualized setup lazy flushing can lead to the hypervisor
running out of resources when lots of guest pages need to be
pinned. In this situation simply trigger a global flush to give
the hypervisor a chance to free some of these resources.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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