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| author |   Jan Glauber <jang@linux.vnet.ibm.com> | 2009-06-22 12:08:14 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-06-22 12:08:21 +0200 |
| commit | f0a0b15e0f3aff0a25f21f58bef8e40e80b16dc6 (patch) | |
| tree | b117ed3c56f7103e4a1d39189075fa1c5e5dbf99 /drivers/s390 | |
| parent | [S390] qdio: merge AI tasklet into interrupt handler (diff) | |
| download | linux-dev-f0a0b15e0f3aff0a25f21f58bef8e40e80b16dc6.tar.xz linux-dev-f0a0b15e0f3aff0a25f21f58bef8e40e80b16dc6.zip | |
[S390] qdio: leave inbound SBALs primed
It is not required to change the state of primed SBALs. Leaving them
primed saves a SQBS instruction under z/VM.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 779b7741d495..75b521963a4e 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -455,13 +455,6 @@ static inline void inbound_primed(struct qdio_q *q, int count) count--; if (!count) return; - - /* - * Need to change all PRIMED buffers to NOT_INIT, otherwise - * we're loosing initiative in the thinint code. - */ - set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT, - count); } static int get_inbound_buffer_frontier(struct qdio_q *q) |