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# Date Author Comment
7267c094 08/21/2011 07:01 am Anthony Liguori

Use glib memory allocation and free functions

qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <>
384acbf4 08/02/2011 04:53 pm Kevin Wolf

async: Remove AsyncContext

The purpose of AsyncContexts was to protect qcow and qcow2 against reentrancy
during an emulated bdrv_read/write (which includes a qemu_aio_wait() call and
can run AIO callbacks of different requests if it weren't for AsyncContexts)....
7887f620 06/15/2011 04:43 pm Kevin Wolf

Allow nested qemu_bh_poll() after BH deletion

Without this, qemu segfaults when a BH handler first deletes its BH and
then calls another function which involves a nested qemu_bh_poll() call.

This can be reproduced by generating an I/O error (e.g. with blkdebug) on...
4f999d05 10/27/2009 07:28 pm Kevin Wolf

Split out bottom halves

Instead of putting more and more stuff into vl.c, let's have the generic
functions that deal with asynchronous callbacks in their own file.

Signed-off-by: Kevin Wolf <>
Signed-off-by: Anthony Liguori <>
9a1e9481 10/27/2009 07:28 pm Kevin Wolf

Introduce contexts for asynchronous callbacks

Add the possibility to use AIO and BHs without allowing foreign callbacks to be
run. Basically, you put your own AIOs and BHs in a separate context. For
details see the comments in the source.

Signed-off-by: Kevin Wolf <>...