From 2019ba0a0197afc85495546f337345a7150710fc Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Tue, 18 Nov 2014 12:21:15 +0100 Subject: [PATCH] block: Add AioContextNotifier functions to BB Because all BlockDriverStates behind a single BlockBackend reside in a single AioContext, it is fine to just pass these functions (blk_add_aio_context_notifier() and blk_remove_aio_context_notifier()) through to the root BlockDriverState. Signed-off-by: Max Reitz Reviewed-by: Paolo Bonzini Message-id: 1416309679-333-3-git-send-email-mreitz@redhat.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- block/block-backend.c | 18 ++++++++++++++++++ include/sysemu/block-backend.h | 8 ++++++++ 2 files changed, 26 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 89f69b7c55..7a7f690612 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -624,6 +624,24 @@ void blk_set_aio_context(BlockBackend *blk, AioContext *new_context) bdrv_set_aio_context(blk->bs, new_context); } +void blk_add_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *new_context, void *opaque), + void (*detach_aio_context)(void *opaque), void *opaque) +{ + bdrv_add_aio_context_notifier(blk->bs, attached_aio_context, + detach_aio_context, opaque); +} + +void blk_remove_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *, + void *), + void (*detach_aio_context)(void *), + void *opaque) +{ + bdrv_remove_aio_context_notifier(blk->bs, attached_aio_context, + detach_aio_context, opaque); +} + void blk_io_plug(BlockBackend *blk) { bdrv_io_plug(blk->bs); diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 0c46b826ca..d9c1337e3f 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -135,6 +135,14 @@ void blk_op_block_all(BlockBackend *blk, Error *reason); void blk_op_unblock_all(BlockBackend *blk, Error *reason); AioContext *blk_get_aio_context(BlockBackend *blk); void blk_set_aio_context(BlockBackend *blk, AioContext *new_context); +void blk_add_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *new_context, void *opaque), + void (*detach_aio_context)(void *opaque), void *opaque); +void blk_remove_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *, + void *), + void (*detach_aio_context)(void *), + void *opaque); void blk_io_plug(BlockBackend *blk); void blk_io_unplug(BlockBackend *blk); BlockAcctStats *blk_get_stats(BlockBackend *blk);