trace: add arguments to bdrv_co_io_em() trace event

It is useful to know the BlockDriverState as well as the
sector_num/nb_sectors of an emulated .bdrv_co_*() request.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

diff --git a/block.c b/block.c
index 1ae22d5d2a08381779229a783edae111de662461..e865fab27e6d2b57dbf181f23db11fa4a87ed9df 100644 (file)
--- a/block.c
+++ b/block.c
@@ -2999,7 +2999,7 @@ static int coroutine_fn bdrv_co_io_em(BlockDriverState *bs, int64_t sector_num,
                              bdrv_co_io_em_complete, &co);
     }
 
-    trace_bdrv_co_io(is_write, acb);
+    trace_bdrv_co_io_em(bs, sector_num, nb_sectors, is_write, acb);
     if (!acb) {
         return -EIO;
     }

diff --git a/trace-events b/trace-events
index c9fd8e5ad5e59a641193ed08f5f0bc5200454e1b..9528c04fedc2f9f41015efbc3c20840909df6761 100644 (file)
--- a/trace-events
+++ b/trace-events
@@ -67,7 +67,7 @@ bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs
 bdrv_lock_medium(void *bs, bool locked) "bs %p locked %d"
 bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
 bdrv_co_writev(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
-bdrv_co_io(int is_write, void *acb) "is_write %d acb %p"
+bdrv_co_io_em(void *bs, int64_t sector_num, int nb_sectors, int is_write, void *acb) "bs %p sector_num %"PRId64" nb_sectors %d is_write %d acb %p"
 
 # hw/virtio-blk.c
 virtio_blk_req_complete(void *req, int status) "req %p status %d"