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| author | Julian Wiedmann <jwi@linux.ibm.com> | 2020-06-16 14:13:00 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2020-07-20 10:55:26 +0200 |
| commit | a709423f7a3a452e5fa7442425817c1bdccd7926 (patch) | |
| tree | 88a7a830f87b34335fa01ad4de1becb48a3398cb /drivers/s390/cio/fcx.c | |
| parent | s390/qdio: allow to scan all 128 Input SBALs (diff) | |
| download | linux-a709423f7a3a452e5fa7442425817c1bdccd7926.tar.xz linux-a709423f7a3a452e5fa7442425817c1bdccd7926.zip | |
s390/qdio: remove internal polling in non-thinint path
For non-thinint devices in LPAR, qdio polls an idle Input Queue for a
little while to catch more work. But platform support for thinints has
been around practically _forever_ by now, so this micro-optimization is
seeing 0 actual use. Remove it to reduce the overall complexity of the
hot path.
In the meantime we also grew support for driver-level polling
(eg. NAPI in qeth), so it's quite questionable how useful this would
actually be on current kernels.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/cio/fcx.c')
0 files changed, 0 insertions, 0 deletions