ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/fs/ocfs2/buffer_head_io.h b/marvell/linux/fs/ocfs2/buffer_head_io.h
new file mode 100644
index 0000000..1c5e533
--- /dev/null
+++ b/marvell/linux/fs/ocfs2/buffer_head_io.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * ocfs2_buffer_head.h
+ *
+ * Buffer cache handling functions defined
+ *
+ * Copyright (C) 2002, 2004 Oracle. All rights reserved.
+ */
+
+#ifndef OCFS2_BUFFER_HEAD_IO_H
+#define OCFS2_BUFFER_HEAD_IO_H
+
+#include <linux/buffer_head.h>
+
+int ocfs2_write_block(struct ocfs2_super *osb,
+ struct buffer_head *bh,
+ struct ocfs2_caching_info *ci);
+int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
+ unsigned int nr, struct buffer_head *bhs[]);
+
+/*
+ * If not NULL, validate() will be called on a buffer that is freshly
+ * read from disk. It will not be called if the buffer was in cache.
+ * Note that if validate() is being used for this buffer, it needs to
+ * be set even for a READAHEAD call, as it marks the buffer for later
+ * validation.
+ */
+int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
+ struct buffer_head *bhs[], int flags,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh));
+
+int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
+ struct buffer_head *bh);
+
+#define OCFS2_BH_IGNORE_CACHE 1
+#define OCFS2_BH_READAHEAD 8
+
+static inline int ocfs2_read_block(struct ocfs2_caching_info *ci, u64 off,
+ struct buffer_head **bh,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh))
+{
+ int status = 0;
+
+ if (bh == NULL) {
+ printk("ocfs2: bh == NULL\n");
+ status = -EINVAL;
+ goto bail;
+ }
+
+ status = ocfs2_read_blocks(ci, off, 1, bh, 0, validate);
+
+bail:
+ return status;
+}
+
+#endif /* OCFS2_BUFFER_HEAD_IO_H */