bcachefs: bch2_open_bucket_to_text()

Factor out a common helper
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/alloc_foreground.c

@@ -1329,23 +1329,56 @@ void bch2_fs_allocator_foreground_init(struct bch_fs *c)
 	}
 }
 
+static void bch2_open_bucket_to_text(struct printbuf *out, struct bch_fs *c, struct open_bucket *ob)
+{
+	struct bch_dev *ca = bch_dev_bkey_exists(c, ob->dev);
+	unsigned data_type = ob->data_type;
+	barrier(); /* READ_ONCE() doesn't work on bitfields */
+
+	prt_printf(out, "%zu ref %u %s %u:%llu gen %u allocated %u/%u",
+		   ob - c->open_buckets,
+		   atomic_read(&ob->pin),
+		   data_type < BCH_DATA_NR ? bch2_data_types[data_type] : "invalid data type",
+		   ob->dev, ob->bucket, ob->gen,
+		   ca->mi.bucket_size - ob->sectors_free, ca->mi.bucket_size);
+	if (ob->ec)
+		prt_printf(out, " ec idx %llu", ob->ec->idx);
+	if (ob->on_partial_list)
+		prt_str(out, " partial");
+	prt_newline(out);
+}
+
 void bch2_open_buckets_to_text(struct printbuf *out, struct bch_fs *c)
 {
 	struct open_bucket *ob;
 
+	out->atomic++;
+
 	for (ob = c->open_buckets;
 	     ob < c->open_buckets + ARRAY_SIZE(c->open_buckets);
 	     ob++) {
 		spin_lock(&ob->lock);
-		if (ob->valid && !ob->on_partial_list) {
-			prt_printf(out, "%zu ref %u type %s %u:%llu:%u\n",
-			       ob - c->open_buckets,
-			       atomic_read(&ob->pin),
-			       bch2_data_types[ob->data_type],
-			       ob->dev, ob->bucket, ob->gen);
-		}
+		if (ob->valid && !ob->on_partial_list)
+			bch2_open_bucket_to_text(out, c, ob);
 		spin_unlock(&ob->lock);
 	}
+
+	--out->atomic;
+}
+
+void bch2_open_buckets_partial_to_text(struct printbuf *out, struct bch_fs *c)
+{
+	unsigned i;
+
+	out->atomic++;
+	spin_lock(&c->freelist_lock);
+
+	for (i = 0; i < c->open_buckets_partial_nr; i++)
+		bch2_open_bucket_to_text(out, c,
+				c->open_buckets + c->open_buckets_partial[i]);
+
+	spin_unlock(&c->freelist_lock);
+	--out->atomic;
 }
 
 static const char * const bch2_write_point_states[] = {

fs/bcachefs/alloc_foreground.h

@@ -221,6 +221,7 @@ static inline struct write_point_specifier writepoint_ptr(struct write_point *wp
 void bch2_fs_allocator_foreground_init(struct bch_fs *);
 
 void bch2_open_buckets_to_text(struct printbuf *, struct bch_fs *);
+void bch2_open_buckets_partial_to_text(struct printbuf *, struct bch_fs *);
 
 void bch2_write_points_to_text(struct printbuf *, struct bch_fs *);
 

fs/bcachefs/sysfs.c

@@ -194,6 +194,7 @@ read_attribute(btree_cache);
 read_attribute(btree_key_cache);
 read_attribute(stripes_heap);
 read_attribute(open_buckets);
+read_attribute(open_buckets_partial);
 read_attribute(write_points);
 read_attribute(nocow_lock_table);
 
@@ -455,6 +456,9 @@ SHOW(bch2_fs)
 	if (attr == &sysfs_open_buckets)
 		bch2_open_buckets_to_text(out, c);
 
+	if (attr == &sysfs_open_buckets_partial)
+		bch2_open_buckets_partial_to_text(out, c);
+
 	if (attr == &sysfs_write_points)
 		bch2_write_points_to_text(out, c);
 
@@ -663,6 +667,7 @@ struct attribute *bch2_fs_internal_files[] = {
 	&sysfs_new_stripes,
 	&sysfs_stripes_heap,
 	&sysfs_open_buckets,
+	&sysfs_open_buckets_partial,
 	&sysfs_write_points,
 #ifdef BCH_WRITE_REF_DEBUG
 	&sysfs_write_refs,