| commit | c11a3dfd6fedd5266c2f9d7286981dc804dfb7cc | [log] [tgz] |
|---|---|---|
| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | Wed Mar 07 14:19:43 2018 +0100 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Mon Mar 26 16:12:48 2018 +0200 |
| tree | 423b7fa200f2978f40ad13b83ac0ebaa3be1c415 | |
| parent | 0cf1e05157b9e5530dcc3ca9fec9bf617fc93375 [diff] |
s390/qdio: restrict buffer merging to eligible devices Only attempt to merge PENDING into EMPTY buffers for devices where the PENDING state is actually expected (ie. IQD with CQ). This might speed up the hot path a little bit. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>