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[Qemu-devel] [PATCH 1/3] trace: trace bdrv_open_common()
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 1/3] trace: trace bdrv_open_common() |
Date: |
Fri, 30 Sep 2011 17:51:01 +0100 |
bdrv_open_common() is a useful point to trace since it reveals the
filename and block driver for a given BlockDriverState.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
block.c | 2 ++
trace-events | 1 +
2 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/block.c b/block.c
index e3fe97f..1ae22d5 100644
--- a/block.c
+++ b/block.c
@@ -475,6 +475,8 @@ static int bdrv_open_common(BlockDriverState *bs, const
char *filename,
assert(drv != NULL);
+ trace_bdrv_open_common(bs, filename, flags, drv->format_name);
+
bs->file = NULL;
bs->total_sectors = 0;
bs->encrypted = 0;
diff --git a/trace-events b/trace-events
index a31d9aa..79ff5ea 100644
--- a/trace-events
+++ b/trace-events
@@ -56,6 +56,7 @@ virtio_console_chr_read(unsigned int port, int size) "port
%u, size %d"
virtio_console_chr_event(unsigned int port, int event) "port %u, event %d"
# block.c
+bdrv_open_common(void *bs, const char *filename, int flags, const char
*format_name) "bs %p filename \"%s\" flags %#x format_name \"%s\""
multiwrite_cb(void *mcb, int ret) "mcb %p ret %d"
bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p
num_callbacks %d num_reqs %d"
bdrv_aio_multiwrite_earlyfail(void *mcb) "mcb %p"
--
1.7.6.3