Author: ian
Date: Fri Feb 13 18:12:30 2015
New Revision: 278687
URL: https://svnweb.freebsd.org/changeset/base/278687
Log:
MFC r277026: Rate-limit error logging to 5 lines per second.
Modified:
stable/10/sys/dev/mmc/mmcsd.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/mmc/mmcsd.c
==============================================================================
--- stable/10/sys/dev/mmc/mmcsd.c Fri Feb 13 18:10:06 2015
(r278686)
+++ stable/10/sys/dev/mmc/mmcsd.c Fri Feb 13 18:12:30 2015
(r278687)
@@ -64,6 +64,7 @@ __FBSDID("$FreeBSD$");
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
+#include <sys/time.h>
#include <geom/geom_disk.h>
#include <dev/mmc/mmcbrvar.h>
@@ -86,6 +87,8 @@ struct mmcsd_softc {
daddr_t eblock, eend; /* Range remaining after the last erase. */
int running;
int suspend;
+ int log_count;
+ struct timeval log_time;
};
static const char *errmsg[] =
@@ -99,6 +102,8 @@ static const char *errmsg[] =
"NO MEMORY"
};
+#define LOG_PPS 5 /* Log no more than 5 errors per second. */
+
/* bus entry points */
static int mmcsd_attach(device_t dev);
static int mmcsd_detach(device_t dev);
@@ -367,8 +372,10 @@ mmcsd_rw(struct mmcsd_softc *sc, struct
}
MMCBUS_WAIT_FOR_REQUEST(mmcbr, dev, &req);
if (req.cmd->error != MMC_ERR_NONE) {
- device_printf(dev, "Error indicated: %d %s\n",
- req.cmd->error, mmcsd_errmsg(req.cmd->error));
+ if (ppsratecheck(&sc->log_time, &sc->log_count,
LOG_PPS)) {
+ device_printf(dev, "Error indicated: %d %s\n",
+ req.cmd->error,
mmcsd_errmsg(req.cmd->error));
+ }
break;
}
block += numblocks;
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