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trace: Trace bdrv_set_locked() 

It can be handy to know when the guest locks/unlocks the CD-ROM tray.
This trace event makes that possible.

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 2011-03-29 20:04:40 +01:00 committed by Kevin Wolf
parent d22b2f41c4
commit b8c6d09589
2 changed files with 3 additions and 0 deletions
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2
block.c
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@ -2817,6 +2817,8 @@ void bdrv_set_locked(BlockDriverState *bs, int locked)
{
BlockDriver *drv = bs->drv;
trace_bdrv_set_locked(bs, locked);
bs->locked = locked;
if (drv && drv->bdrv_set_locked) {
drv->bdrv_set_locked(bs, locked);

1
trace-events
View File

@ -54,6 +54,7 @@ disable bdrv_aio_multiwrite_latefail(void *mcb, int i) "mcb %p i %d"
disable bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
disable bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
disable bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
disable bdrv_set_locked(void *bs, int locked) "bs %p locked %d"
# hw/virtio-blk.c
disable virtio_blk_req_complete(void *req, int status) "req %p status %d"