1 files changed, 35 insertions, 0 deletions
diff --git a/fs/iomap/internal.h b/fs/iomap/internal.h
new file mode 100644
index 000000000..74e898b19
--- /dev/null
+++ b/fs/iomap/internal.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _IOMAP_INTERNAL_H
+#define _IOMAP_INTERNAL_H 1
+
+#define IOEND_BATCH_SIZE	4096
+
+/*
+ * Normally we can build bios as big as the data structure supports.
+ *
+ * But for integrity protected I/O we need to respect the maximum size of the
+ * single contiguous allocation for the integrity buffer.
+ */
+static inline size_t iomap_max_bio_size(const struct iomap *iomap)
+{
+	if (iomap->flags & IOMAP_F_INTEGRITY)
+		return max_integrity_io_size(bdev_limits(iomap->bdev));
+	return BIO_MAX_SIZE;
+}
+
+u32 iomap_finish_ioend_buffered_read(struct iomap_ioend *ioend);
+u32 iomap_finish_ioend_direct(struct iomap_ioend *ioend);
+
+#ifdef CONFIG_BLOCK
+int iomap_bio_read_folio_range_sync(const struct iomap_iter *iter,
+		struct folio *folio, loff_t pos, size_t len);
+#else
+static inline int iomap_bio_read_folio_range_sync(const struct iomap_iter *iter,
+		struct folio *folio, loff_t pos, size_t len)
+{
+	WARN_ON_ONCE(1);
+	return -EIO;
+}
+#endif /* CONFIG_BLOCK */
+
+#endif /* _IOMAP_INTERNAL_H */