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trace: trace bdrv_open_common()

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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 <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Stefan Hajnoczi 2011-09-22 20:14:12 +01:00
parent c45a81682d
commit 28dcee10c5
2 changed files with 3 additions and 0 deletions
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2
block.c
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@ -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;

1
trace-events
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@ -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"