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| author | Julian Wiedmann <jwi@linux.ibm.com> | 2019-08-23 12:48:47 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-25 02:39:18 +0300 |
| commit | 7c47f5afdeef763599f1ae22d29b8c3904c58315 (patch) | |
| tree | 0aa9265576bf9f2fb6fc67307a6200b0fd2809d0 /mm/page_idle.c | |
| parent | fbbdbc6473070dcb3ee1d69cf1c49ff78677d716 (diff) | |
| download | linux-7c47f5afdeef763599f1ae22d29b8c3904c58315.tar.xz | |
s390/qdio: enable drivers to poll for Output completions
While commit d36deae75011 ("qdio: extend API to allow polling") enhanced
the qdio layer so that drivers can poll their Input Queues, we don't
have the corresponding infrastructure for Output Queues yet.
Factor out a helper that scans a single QDIO Queue, so that qeth can
implement TX NAPI on top of it.
While doing so, remove the duplicated tracking of the next-to-scan index
(q->first_to_check vs q->first_to_kick) in this code path.
qdio_handle_aobs() needs to move slightly upwards in the code hierarchy,
so that it's still called from the polling path.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/page_idle.c')
0 files changed, 0 insertions, 0 deletions