+int LL_PROC_PROTO(proc_max_dirty_pages_in_mb)
+{
+ int rc = 0;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write) {
+ rc = lprocfs_write_frac_helper(buffer, *lenp,
+ (unsigned int*)table->data,
+ 1 << (20 - CFS_PAGE_SHIFT));
+ /* Don't allow them to let dirty pages exceed 90% of system
+ * memory and set a hard minimum of 4MB. */
+ if (obd_max_dirty_pages > ((cfs_num_physpages / 10) * 9)) {
+ CERROR("Refusing to set max dirty pages to %u, which "
+ "is more than 90%% of available RAM; setting "
+ "to %lu\n", obd_max_dirty_pages,
+ ((cfs_num_physpages / 10) * 9));
+ obd_max_dirty_pages = ((cfs_num_physpages / 10) * 9);
+ } else if (obd_max_dirty_pages < 4 << (20 - CFS_PAGE_SHIFT)) {
+ obd_max_dirty_pages = 4 << (20 - CFS_PAGE_SHIFT);
+ }
+ } else {
+ char buf[21];
+ int len;
+
+ len = lprocfs_read_frac_helper(buf, sizeof(buf),
+ *(unsigned int*)table->data,
+ 1 << (20 - CFS_PAGE_SHIFT));
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ }
+ *ppos += *lenp;
+ return rc;
+}
+
+#ifdef RANDOM_FAIL_ALLOC
+int LL_PROC_PROTO(proc_alloc_fail_rate)
+{
+ int rc = 0;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write) {
+ rc = lprocfs_write_frac_helper(buffer, *lenp,
+ (unsigned int*)table->data,
+ OBD_ALLOC_FAIL_MULT);
+ } else {
+ char buf[21];
+ int len;
+
+ len = lprocfs_read_frac_helper(buf, 21,
+ *(unsigned int*)table->data,
+ OBD_ALLOC_FAIL_MULT);
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ }
+ *ppos += *lenp;
+ return rc;
+}
+#endif
+
+int LL_PROC_PROTO(proc_at_min)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_max)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_extra)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_early_margin)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_history)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+
+#ifdef CONFIG_SYSCTL