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| author | Filipe Manana <fdmanana@suse.com> | 2021-01-11 11:42:32 +0000 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-02-08 22:58:51 +0100 |
| commit | 9c4a062a94752dabd3954ef39c4dfed581c664b9 (patch) | |
| tree | 571ba698fcfdf858ab0daf32ed2cfe24ab9d9d67 /fs/btrfs/send.c | |
| parent | 7056bf69e5a338811738a7932b8e707aaca9fdd0 (diff) | |
| download | linux-9c4a062a94752dabd3954ef39c4dfed581c664b9.tar.bz2 | |
btrfs: send: remove stale code when checking for shared extents
After commit 040ee6120cb670 ("Btrfs: send, improve clone range") we do not
use anymore the data_offset field of struct backref_ctx, as after that we
do all the necessary checks for the data offset of file extent items at
clone_range(). Since there are no more users of data_offset from that
structure, remove it.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/send.c')
| -rw-r--r-- | fs/btrfs/send.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 78a35374d492..3bcbf2bcb869 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -1191,9 +1191,6 @@ struct backref_ctx { /* may be truncated in case it's the last extent in a file */ u64 extent_len; - /* data offset in the file extent item */ - u64 data_offset; - /* Just to check for bugs in backref resolving */ int found_itself; }; @@ -1401,19 +1398,6 @@ static int find_extent_clone(struct send_ctx *sctx, backref_ctx->cur_offset = data_offset; backref_ctx->found_itself = 0; backref_ctx->extent_len = num_bytes; - /* - * For non-compressed extents iterate_extent_inodes() gives us extent - * offsets that already take into account the data offset, but not for - * compressed extents, since the offset is logical and not relative to - * the physical extent locations. We must take this into account to - * avoid sending clone offsets that go beyond the source file's size, - * which would result in the clone ioctl failing with -EINVAL on the - * receiving end. - */ - if (compressed == BTRFS_COMPRESS_NONE) - backref_ctx->data_offset = 0; - else - backref_ctx->data_offset = btrfs_file_extent_offset(eb, fi); /* * The last extent of a file may be too large due to page alignment. |