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authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2011-03-29 20:04:40 +0100
committerKevin Wolf <kwolf@redhat.com>2011-04-07 13:51:47 +0200
commitb8c6d0958943c96ca9401961a1200568c7ec0268 (patch)
tree60eb25ebf1789590df142ed18090ffe82a85e5d2
parentd22b2f41c470067758b3636a01b452dfeda7069f (diff)
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>
-rw-r--r--block.c2
-rw-r--r--trace-events1
2 files changed, 3 insertions, 0 deletions
diff --git a/block.c b/block.c
index c93ec6d418..d8da3b09d3 100644
--- a/block.c
+++ b/block.c
@@ -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);
diff --git a/trace-events b/trace-events
index 06efdb7753..703b745bc4 100644
--- a/trace-events
+++ b/trace-events
@@ -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"