motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-01 23:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

block: convert qemu_aio_flush() calls to bdrv_drain_all()

Browse source 
Many places in QEMU call qemu_aio_flush() to complete all pending
asynchronous I/O.  Most of these places actually want to drain all block
requests but there is no block layer API to do so.

This patch introduces the bdrv_drain_all() API to wait for requests
across all BlockDriverStates to complete.  As a bonus we perform checks
after qemu_aio_wait() to ensure that requests really have finished.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2011-11-30 12:23:43 +00:00 • committed by Kevin Wolf
parent 5f8b6491f2
commit 922453bca6
12 changed files with 34 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

2
savevm.c
View file

@ -2104,7 +2104,7 @@ int load_vmstate(const char *name)
}
/* Flush all IO requests so they don't interfere with the new state. */
qemu_aio_flush();
bdrv_drain_all();
bs = NULL;
while ((bs = bdrv_next(bs))) {