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authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>2010-03-08 12:25:15 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-03-08 12:25:29 +0100
commit91a970d9889c7d6f451ee91ed361d0f0119d3778 (patch)
tree90cae28b66ac49543b3146194c88205c72f9f926 /drivers/s390
parent596a95cdf0ba35ea353fb5b65750f596d712041e (diff)
[S390] hvc_iucv: allocate memory buffers for IUCV in zone DMA
The device driver must allocate memory for IUCV buffers with GFP_DMA, because IUCV cannot address memory above 2GB (31bit addresses only). Because the IUCV ignores the higher bits of the address, sending and receiving IUCV data with this driver might cause memory corruptions. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
0 files changed, 0 insertions, 0 deletions