The search header is usually accessed in an unaligned way, we could
trigger errors (SIGBUS) on architectures that do not support that.
Signed-off-by: David Sterba <dste...@suse.com>
---
ctree.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/ctree.h b/ctree.h
index 2da6f7786a78..13ed05052301 100644
--- a/ctree.h
+++ b/ctree.h
@@ -2196,6 +2196,32 @@ static inline u32
btrfs_file_extent_inline_item_len(struct extent_buffer *eb,
return btrfs_item_size(eb, e) - offset;
}
+/* struct btrfs_ioctl_search_header */
+static inline u64 btrfs_search_header_transid(struct btrfs_ioctl_search_header
*sh)
+{
+ return get_unaligned_64(&sh->transid);
+}
+
+static inline u64 btrfs_search_header_objectid(struct
btrfs_ioctl_search_header *sh)
+{
+ return get_unaligned_64(&sh->objectid);
+}
+
+static inline u64 btrfs_search_header_offset(struct btrfs_ioctl_search_header
*sh)
+{
+ return get_unaligned_64(&sh->offset);
+}
+
+static inline u32 btrfs_search_header_type(struct btrfs_ioctl_search_header
*sh)
+{
+ return get_unaligned_32(&sh->type);
+}
+
+static inline u32 btrfs_search_header_len(struct btrfs_ioctl_search_header *sh)
+{
+ return get_unaligned_32(&sh->len);
+}
+
/* this returns the number of file bytes represented by the inline item.
* If an item is compressed, this is the uncompressed size
*/
--
2.7.1
--
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