+static u64 blkg_prfill_rwstat_field(struct seq_file *sf,
+ struct blkg_policy_data *pd, int off)
+{
+ struct blkg_rwstat rwstat = blkg_rwstat_read((void *)pd->blkg + off);
+
+ return __blkg_prfill_rwstat(sf, pd, &rwstat);
+}
+
+/**
+ * blkg_print_stat_bytes - seq_show callback for blkg->stat_bytes
+ * @sf: seq_file to print to
+ * @v: unused
+ *
+ * To be used as cftype->seq_show to print blkg->stat_bytes.
+ * cftype->private must be set to the blkcg_policy.
+ */
+int blkg_print_stat_bytes(struct seq_file *sf, void *v)
+{
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ blkg_prfill_rwstat_field, (void *)seq_cft(sf)->private,
+ offsetof(struct blkcg_gq, stat_bytes), true);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(blkg_print_stat_bytes);
+
+/**
+ * blkg_print_stat_bytes - seq_show callback for blkg->stat_ios
+ * @sf: seq_file to print to
+ * @v: unused
+ *
+ * To be used as cftype->seq_show to print blkg->stat_ios. cftype->private
+ * must be set to the blkcg_policy.
+ */
+int blkg_print_stat_ios(struct seq_file *sf, void *v)
+{
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ blkg_prfill_rwstat_field, (void *)seq_cft(sf)->private,
+ offsetof(struct blkcg_gq, stat_ios), true);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(blkg_print_stat_ios);
+
+static u64 blkg_prfill_rwstat_field_recursive(struct seq_file *sf,
+ struct blkg_policy_data *pd,
+ int off)
+{
+ struct blkg_rwstat rwstat = blkg_rwstat_recursive_sum(pd->blkg,
+ NULL, off);
+ return __blkg_prfill_rwstat(sf, pd, &rwstat);
+}
+
+/**
+ * blkg_print_stat_bytes_recursive - recursive version of blkg_print_stat_bytes
+ * @sf: seq_file to print to
+ * @v: unused
+ */
+int blkg_print_stat_bytes_recursive(struct seq_file *sf, void *v)
+{
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ blkg_prfill_rwstat_field_recursive,
+ (void *)seq_cft(sf)->private,
+ offsetof(struct blkcg_gq, stat_bytes), true);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(blkg_print_stat_bytes_recursive);
+
+/**
+ * blkg_print_stat_ios_recursive - recursive version of blkg_print_stat_ios
+ * @sf: seq_file to print to
+ * @v: unused
+ */
+int blkg_print_stat_ios_recursive(struct seq_file *sf, void *v)
+{
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ blkg_prfill_rwstat_field_recursive,
+ (void *)seq_cft(sf)->private,
+ offsetof(struct blkcg_gq, stat_ios), true);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(blkg_print_stat_ios_recursive);
+