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blkdebug: Add BLKDBG_FLUSH_TO_OS/DISK events

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2013-06-05 15:17:55 +02:00 • committed by Stefan Hajnoczi
parent 587da2c39c
commit bf736fe34c
3 changed files with 10 additions and 4 deletions
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8
block.c
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@ -3186,13 +3186,11 @@ int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event)
{
BlockDriver *drv = bs->drv;
if (!drv || !drv->bdrv_debug_event) {
if (!bs || !bs->drv || !bs->drv->bdrv_debug_event) {
return;
}
drv->bdrv_debug_event(bs, event);
bs->drv->bdrv_debug_event(bs, event);
}
int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event,
@ -4024,6 +4022,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
}
/* Write back cached data to the OS even with cache=unsafe */
BLKDBG_EVENT(bs->file, BLKDBG_FLUSH_TO_OS);
if (bs->drv->bdrv_co_flush_to_os) {
ret = bs->drv->bdrv_co_flush_to_os(bs);
if (ret < 0) {
@ -4036,6 +4035,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
goto flush_parent;
}
BLKDBG_EVENT(bs->file, BLKDBG_FLUSH_TO_DISK);
if (bs->drv->bdrv_co_flush_to_disk) {
ret = bs->drv->bdrv_co_flush_to_disk(bs);
} else if (bs->drv->bdrv_aio_flush) {