aboutsummaryrefslogtreecommitdiffstats
path: root/lib/fault-inject.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/fault-inject.c')
-rw-r--r--lib/fault-inject.c21
1 files changed, 17 insertions, 4 deletions
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index d7d501ea856d..f1cdeb024d17 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -40,10 +40,16 @@ EXPORT_SYMBOL_GPL(setup_fault_attr);
static void fail_dump(struct fault_attr *attr)
{
- if (attr->verbose > 0)
- printk(KERN_NOTICE "FAULT_INJECTION: forcing a failure\n");
- if (attr->verbose > 1)
- dump_stack();
+ if (attr->verbose > 0 && __ratelimit(&attr->ratelimit_state)) {
+ printk(KERN_NOTICE "FAULT_INJECTION: forcing a failure.\n"
+ "name %pd, interval %lu, probability %lu, "
+ "space %d, times %d\n", attr->dname,
+ attr->probability, attr->interval,
+ atomic_read(&attr->space),
+ atomic_read(&attr->times));
+ if (attr->verbose > 1)
+ dump_stack();
+ }
}
#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
@@ -202,6 +208,12 @@ struct dentry *fault_create_debugfs_attr(const char *name,
goto fail;
if (!debugfs_create_ul("verbose", mode, dir, &attr->verbose))
goto fail;
+ if (!debugfs_create_u32("verbose_ratelimit_interval_ms", mode, dir,
+ &attr->ratelimit_state.interval))
+ goto fail;
+ if (!debugfs_create_u32("verbose_ratelimit_burst", mode, dir,
+ &attr->ratelimit_state.burst))
+ goto fail;
if (!debugfs_create_bool("task-filter", mode, dir, &attr->task_filter))
goto fail;
@@ -222,6 +234,7 @@ struct dentry *fault_create_debugfs_attr(const char *name,
#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
+ attr->dname = dget(dir);
return dir;
fail:
debugfs_remove_recursive(dir);

Privacy Policy