Commit 324ec3e4 authored by Fam Zheng's avatar Fam Zheng
Browse files

qemu-io-cmds: Use bdrv_coroutine_enter 



qemu_coroutine_create associates @co to qemu_aio_context but we poll
blk's context below. If the coroutine yields, it may never get resumed
again.

Use bdrv_coroutine_enter to make sure we are starting the I/O on the
right context.

Signed-off-by: default avatarFam Zheng <famz@redhat.com>
Acked-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: default avatarKevin Wolf <kwolf@redhat.com>
parent aef4278c

qemu-io-cmds.c

+1 −1
Original line number Diff line number Diff line
@@ -521,7 +521,7 @@ static int do_co_pwrite_zeroes(BlockBackend *blk, int64_t offset, 
    }



    co = qemu_coroutine_create(co_pwrite_zeroes_entry, &data);

    qemu_coroutine_enter(co);

    bdrv_coroutine_enter(blk_bs(blk), co);

    while (!data.done) {

        aio_poll(blk_get_aio_context(blk), true);

    }