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(parent: 4d5a6b7) | patch
s390/pci_dma: handle dma table failures
authorSebastian Ott <sebott@linux.vnet.ibm.com>
Mon, 26 Oct 2015 10:19:13 +0000 (11:19 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 9 Nov 2015 08:10:49 +0000 (09:10 +0100)
commit66728eeea6d80060e4b9df55c7845c838ff2799f
treea04d86f83e773731272cf299d85069f4a66bc732tree | snapshot
parent4d5a6b72959601d6c12e7e1ef3aa4132f0a62523commit | diff
s390/pci_dma: handle dma table failures

We use lazy allocation for translation table entries but don't handle
allocation (and other) failures during translation table updates.

Handle these failures and undo translation table updates when it's
meaningful.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/include/asm/pci_dma.h diff | blob | history
arch/s390/pci/pci_dma.c diff | blob | history
drivers/iommu/s390-iommu.c diff | blob | history
Domain: System / Kernel;