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block: Add copy offloading trace points

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A few trace points that can help reveal what is happening in a copy
offloading I/O path.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2018-07-10 14:31:16 +08:00 • committed by Kevin Wolf
parent f8a30874ca
commit ecc983a507
4 changed files with 15 additions and 0 deletions
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3
block/iscsi.c
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@ -44,6 +44,7 @@
#include "qapi/qmp/qstring.h"
#include "crypto/secret.h"
#include "scsi/utils.h"
#include "trace.h"
/* Conflict between scsi/utils.h and libiscsi! :( */
#define SCSI_XFER_NONE ISCSI_XFER_NONE
@ -2399,6 +2400,8 @@ retry:
}
out_unlock:
trace_iscsi_xcopy(src_lun, src_offset, dst_lun, dst_offset, bytes, r);
g_free(iscsi_task.task);
qemu_mutex_unlock(&dst_lun->mutex);
g_free(iscsi_task.err_str);