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Make the printf when busy_time < 0 a little more descriptive. This may

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help track down bugs in the devstat implementation in various drivers.
(i.e., any situation where the driver does not call the devstat routines
once and only once for each transaction initiation and completion)

Prompted by:	msmith
This commit is contained in:
Kenneth D. Merry 1998-10-06 04:16:07 +00:00
parent de86eff58c
commit a795f8bbaa
1 changed files with 4 additions and 2 deletions
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6
sys/kern/subr_devstat.c
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@ -25,7 +25,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: subr_devstat.c,v 1.1 1998/09/15 08:16:09 gibbs Exp $
* $Id: subr_devstat.c,v 1.2 1998/09/20 00:10:39 ken Exp $
*/
#include <sys/param.h>
@ -178,7 +178,9 @@ devstat_end_transaction(struct devstat *ds, u_int32_t bytes,
/* Add our busy time to the total busy time. */
timevaladd(&ds->busy_time, &busy_time);
} else if (ds->busy_count < 0)
printf("devstat_end_transaction: HELP!! busy_count is < 0!\n");
printf("devstat_end_transaction: HELP!! busy_count "
"for %s%d is < 0 (%d)!\n", ds->device_name,
ds->unit_number, ds->busy_count);
}
/*