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| author | Qu Wenruo <wqu@suse.com> | 2023-07-15 14:08:30 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-08-21 15:52:17 +0300 |
| commit | 730c374e5b2cec061e3af7616b9d1265e60b6c0a (patch) | |
| tree | fe269261d8986a70d0458624e6c2c37f8ee74ae9 /fs/btrfs/extent_io.h | |
| parent | cb22964f1dad228fc2a1e5aba50c16b4b5680cd5 (diff) | |
| download | linux-730c374e5b2cec061e3af7616b9d1265e60b6c0a.tar.xz | |
btrfs: use write_extent_buffer() to implement write_extent_buffer_*id()
Helpers write_extent_buffer_chunk_tree_uuid() and
write_extent_buffer_fsid(), they can be implemented by
write_extent_buffer().
These two helpers are not that frequently used, they only get called
during initialization of a new tree block. There is not much need for
those slightly optimized versions. And since they can be easily
converted to one write_extent_buffer() call, define them as inline
helpers.
This would make later page/folio switch much easier, as all change only
need to happen in write_extent_buffer().
Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index c01f9c5ddc13..adda14c1b763 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -236,11 +236,24 @@ void read_extent_buffer(const struct extent_buffer *eb, void *dst, int read_extent_buffer_to_user_nofault(const struct extent_buffer *eb, void __user *dst, unsigned long start, unsigned long len); -void write_extent_buffer_fsid(const struct extent_buffer *eb, const void *src); -void write_extent_buffer_chunk_tree_uuid(const struct extent_buffer *eb, - const void *src); void write_extent_buffer(const struct extent_buffer *eb, const void *src, unsigned long start, unsigned long len); + +static inline void write_extent_buffer_chunk_tree_uuid( + const struct extent_buffer *eb, const void *chunk_tree_uuid) +{ + write_extent_buffer(eb, chunk_tree_uuid, + offsetof(struct btrfs_header, chunk_tree_uuid), + BTRFS_FSID_SIZE); +} + +static inline void write_extent_buffer_fsid(const struct extent_buffer *eb, + const void *fsid) +{ + write_extent_buffer(eb, fsid, offsetof(struct btrfs_header, fsid), + BTRFS_FSID_SIZE); +} + void copy_extent_buffer_full(const struct extent_buffer *dst, const struct extent_buffer *src); void copy_extent_buffer(const struct extent_buffer *dst, |