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ALSA: seq: virmidi: Add a drain operation
authorStefan Sauer <st_kost@gmx.de>
Thu, 6 Jan 2022 12:41:45 +0000 (13:41 +0100)
committerTakashi Iwai <tiwai@suse.de>
Thu, 6 Jan 2022 15:08:07 +0000 (16:08 +0100)
commit7560ee032b3f87fa5c4f03e99a064c6cd326951e
tree17bdba5018a5731faecc565b2bebc39cbf312273tree | snapshot
parentb81e9e5c723de936652653241d3dc4f33ae05e8ccommit | diff
ALSA: seq: virmidi: Add a drain operation

If a driver does not supply a drain operation for outputs, a default code
path will execute msleep(50). Especially for a virtual midi device
this severely limmits the throughput.

This implementation for the virtual midi driver simply flushes the output
workqueue.

Signed-off-by: Stefan Sauer <st_kost@gmx.de>
Link: https://lore.kernel.org/r/20220106124145.17254-1-st_kost@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/core/seq/seq_virmidi.c diff | blob | history
Domain: System / Kernel;