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076682885d
Stop using the .bdrv_co_io_plug() API because it is not multi-queue block layer friendly. Use the new blk_io_plug_call() API to batch I/O submission instead. Note that a dev_max_batch check is dropped in laio_io_unplug() because the semantics of unplug_fn() are different from .bdrv_co_unplug(): 1. unplug_fn() is only called when the last blk_io_unplug() call occurs, not every time blk_io_unplug() is called. 2. unplug_fn() is per-thread, not per-BlockDriverState, so there is no way to get per-BlockDriverState fields like dev_max_batch. Therefore this condition cannot be moved to laio_unplug_fn(). It is not obvious that this condition affects performance in practice, so I am removing it instead of trying to come up with a more complex mechanism to preserve the condition. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20230530180959.1108766-6-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> |
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| .. | ||
| accounting.h | ||
| aio-wait.h | ||
| aio.h | ||
| aio_task.h | ||
| block-common.h | ||
| block-copy.h | ||
| block-global-state.h | ||
| block-hmp-cmds.h | ||
| block-io.h | ||
| block.h | ||
| block_backup.h | ||
| block_int-common.h | ||
| block_int-global-state.h | ||
| block_int-io.h | ||
| block_int.h | ||
| blockjob.h | ||
| blockjob_int.h | ||
| dirty-bitmap.h | ||
| export.h | ||
| fuse.h | ||
| graph-lock.h | ||
| nbd.h | ||
| nvme.h | ||
| qapi.h | ||
| qdict.h | ||
| raw-aio.h | ||
| replication.h | ||
| reqlist.h | ||
| snapshot.h | ||
| thread-pool.h | ||
| throttle-groups.h | ||
| write-threshold.h | ||