From 64a4800875956162b8dec799ac70e89cd7502ce8 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Tue, 3 May 2016 16:00:05 +0200 Subject: btrfs-progs: add getters for ioctl search_header 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 --- ctree.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'ctree.h') diff --git a/ctree.h b/ctree.h index 2db5c87c..86227f8a 100644 --- a/ctree.h +++ b/ctree.h @@ -2201,6 +2201,32 @@ 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 */ -- cgit v1.2.3