Lines Matching refs:attr
18 int setup_fault_attr(struct fault_attr *attr, char *str)
33 attr->probability = probability;
34 attr->interval = interval;
35 atomic_set(&attr->times, times);
36 atomic_set(&attr->space, space);
42 static void fail_dump(struct fault_attr *attr)
44 if (attr->verbose > 0 && __ratelimit(&attr->ratelimit_state)) {
47 "space %d, times %d\n", attr->dname,
48 attr->interval, attr->probability,
49 atomic_read(&attr->space),
50 atomic_read(&attr->times));
51 if (attr->verbose > 1)
58 static bool fail_task(struct fault_attr *attr, struct task_struct *task)
67 static bool fail_stacktrace(struct fault_attr *attr)
69 int depth = attr->stacktrace_depth;
72 bool found = (attr->require_start == 0 && attr->require_end == ULONG_MAX);
79 if (attr->reject_start <= entries[n] &&
80 entries[n] < attr->reject_end)
82 if (attr->require_start <= entries[n] &&
83 entries[n] < attr->require_end)
91 static inline bool fail_stacktrace(struct fault_attr *attr)
103 bool should_fail(struct fault_attr *attr, ssize_t size)
119 if (attr->probability == 0)
122 if (attr->task_filter && !fail_task(attr, current))
125 if (atomic_read(&attr->times) == 0)
128 if (atomic_read(&attr->space) > size) {
129 atomic_sub(size, &attr->space);
133 if (attr->interval > 1) {
134 attr->count++;
135 if (attr->count % attr->interval)
139 if (attr->probability <= prandom_u32() % 100)
142 if (!fail_stacktrace(attr))
146 fail_dump(attr);
148 if (atomic_read(&attr->times) != -1)
149 atomic_dec_not_zero(&attr->times);
200 struct dentry *parent, struct fault_attr *attr)
209 debugfs_create_ul("probability", mode, dir, &attr->probability);
210 debugfs_create_ul("interval", mode, dir, &attr->interval);
211 debugfs_create_atomic_t("times", mode, dir, &attr->times);
212 debugfs_create_atomic_t("space", mode, dir, &attr->space);
213 debugfs_create_ul("verbose", mode, dir, &attr->verbose);
215 &attr->ratelimit_state.interval);
217 &attr->ratelimit_state.burst);
218 debugfs_create_bool("task-filter", mode, dir, &attr->task_filter);
222 &attr->stacktrace_depth);
223 debugfs_create_ul("require-start", mode, dir, &attr->require_start);
224 debugfs_create_ul("require-end", mode, dir, &attr->require_end);
225 debugfs_create_ul("reject-start", mode, dir, &attr->reject_start);
226 debugfs_create_ul("reject-end", mode, dir, &attr->reject_end);
229 attr->dname = dget(dir);