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authorStefan Hajnoczi <stefanha@redhat.com>2023-09-12 19:10:35 -0400
committerKevin Wolf <kwolf@redhat.com>2023-09-20 17:46:01 +0200
commit46eb6e861b0a622541593ea6db85e7c971dadb28 (patch)
tree1f15f871266eae07a1d761d384a4d3c92c5e7e54 /scripts/update-linux-headers.sh
parentc8bf923d5eeed0b2bbe26feb37bb399ec1a894f5 (diff)
downloadfocaccia-qemu-46eb6e861b0a622541593ea6db85e7c971dadb28.tar.gz
focaccia-qemu-46eb6e861b0a622541593ea6db85e7c971dadb28.zip
block-backend: process I/O in the current AioContext
Switch blk_aio_*() APIs over to multi-queue by using
qemu_get_current_aio_context() instead of blk_get_aio_context(). This
change will allow devices to process I/O in multiple IOThreads in the
future.

I audited existing blk_aio_*() callers:
- migration/block.c: blk_mig_lock() protects the data accessed by the
  completion callback.
- The remaining emulated devices and exports run with
  qemu_get_aio_context() == blk_get_aio_context().

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230912231037.826804-4-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'scripts/update-linux-headers.sh')
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