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[Qemu-devel] [PULL 23/73] block: Add AioContextNotifier functions to BB
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 23/73] block: Add AioContextNotifier functions to BB |
Date: |
Wed, 10 Dec 2014 11:33:49 +0100 |
From: Max Reitz <address@hidden>
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 <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
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 89f69b7..7a7f690 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 0c46b82..d9c1337 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);
--
1.8.3.1
- [Qemu-devel] [PULL 02/73] block: Add bdrv_get_node_name, (continued)
- [Qemu-devel] [PULL 02/73] block: Add bdrv_get_node_name, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 11/73] blockdev: acquire AioContext in eject, change, and block_passwd, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 03/73] block: Include "node-name" if present in query-blockstats, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 15/73] block/hmp: Allow info = NULL in print_block_info(), Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 13/73] block/qapi: Add cache information to query-block, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 10/73] blockdev: check for BLOCK_OP_TYPE_INTERNAL_SNAPSHOT_DELETE, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 14/73] block/hmp: Factor out print_block_info(), Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 16/73] block/hmp: Allow node-name in 'info block', Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 17/73] monitor: Fix HMP tab completion, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 21/73] ahci: replace SATA FIS type magic numbers with constants, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 23/73] block: Add AioContextNotifier functions to BB,
Kevin Wolf <=
- [Qemu-devel] [PULL 19/73] iotests: Plain blkdebug filename generation, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 20/73] ahci: avoid #ifdef DEBUG_AHCI bitrot, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 22/73] block: Lift more functions into BlockBackend, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 24/73] block: Add blk_add_close_notifier() for BB, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 25/73] nbd: Change external interface to BlockBackend, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 26/73] nbd: Use BlockBackend internally, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 27/73] qemu-nbd: Use BlockBackend where reasonable, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 28/73] tests: Use "command -v" instead of which(1) in shell scripts, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 30/73] qemu-iotests: Use qemu-io -f $IMGFMT, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 31/73] qemu-iotests: Add qemu-io format option in Python tests, Kevin Wolf, 2014/12/10