| commit | 91a970d9889c7d6f451ee91ed361d0f0119d3778 | [log] [tgz] |
|---|---|---|
| author | Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | Mon Mar 08 12:25:15 2010 +0100 |
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | Mon Mar 08 12:25:29 2010 +0100 |
| tree | 90cae28b66ac49543b3146194c88205c72f9f926 | |
| parent | 596a95cdf0ba35ea353fb5b65750f596d712041e [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>