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btrfs: open code trivial helper btrfs_header_fsid

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The helper btrfs_header_fsid follows naming convention of other struct
accessors but does something compeletly different. As the offsetof
calculation is clear in the context of extent buffer operations we can
remove it.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2019-03-20 13:15:57 +01:00
parent 75fb2e9e49
commit 9a8658e33d
2 changed files with 4 additions and 7 deletions
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5
fs/btrfs/ctree.h
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@@ -1973,11 +1973,6 @@ static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb,
btrfs_set_header_flags(eb, flags);
}
static inline unsigned long btrfs_header_fsid(void)
{
return offsetof(struct btrfs_header, fsid);
}
static inline unsigned long btrfs_header_chunk_tree_uuid(const struct extent_buffer *eb)
{
return offsetof(struct btrfs_header, chunk_tree_uuid);