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block: explicitly acquire aiocontext in aio callbacks that need it

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Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170213135235.12274-16-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-02-13 14:52:32 +01:00 • committed by Stefan Hajnoczi
parent 1919631e6b
commit b9e413dd37
17 changed files with 72 additions and 50 deletions
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7
block/block-backend.c
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@ -939,12 +939,9 @@ int blk_make_zero(BlockBackend *blk, BdrvRequestFlags flags)
static void error_callback_bh(void *opaque)
{
struct BlockBackendAIOCB *acb = opaque;
AioContext *ctx = bdrv_get_aio_context(acb->common.bs);
bdrv_dec_in_flight(acb->common.bs);
aio_context_acquire(ctx);
acb->common.cb(acb->common.opaque, acb->ret);
aio_context_release(ctx);
qemu_aio_unref(acb);
}
@ -986,12 +983,8 @@ static void blk_aio_complete(BlkAioEmAIOCB *acb)
static void blk_aio_complete_bh(void *opaque)
{
BlkAioEmAIOCB *acb = opaque;
AioContext *ctx = bdrv_get_aio_context(acb->common.bs);
assert(acb->has_returned);
aio_context_acquire(ctx);
blk_aio_complete(acb);
aio_context_release(ctx);
}
static BlockAIOCB *blk_aio_prwv(BlockBackend *blk, int64_t offset, int bytes,