Patchwork [1/2] trace: Trace bdrv_aio_flush()

login
register
mail settings
Submitter Stefan Hajnoczi
Date March 7, 2011, 10:17 a.m.
Message ID <1299493051-23647-1-git-send-email-stefanha@linux.vnet.ibm.com>
Download mbox | patch
Permalink /patch/85716/
State New
Headers show

Comments

Stefan Hajnoczi - March 7, 2011, 10:17 a.m.
Add a trace event for bdrv_aio_flush() to complement the existing
bdrv_aio_readv() and bdrv_aio_writev() events.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
---
 block.c      |    2 ++
 trace-events |    1 +
 2 files changed, 3 insertions(+), 0 deletions(-)

Patch

diff --git a/block.c b/block.c
index f7d91a2..0559d83 100644
--- a/block.c
+++ b/block.c
@@ -2477,6 +2477,8 @@  BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
 {
     BlockDriver *drv = bs->drv;
 
+    trace_bdrv_aio_flush(bs, opaque);
+
     if (bs->open_flags & BDRV_O_NO_FLUSH) {
         return bdrv_aio_noop_em(bs, cb, opaque);
     }
diff --git a/trace-events b/trace-events
index e6138ea..26e6915 100644
--- a/trace-events
+++ b/trace-events
@@ -51,6 +51,7 @@  disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d"
 disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d"
 disable bdrv_aio_multiwrite_earlyfail(void *mcb) "mcb %p"
 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"