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| author |  Kent Overstreet <kent.overstreet@gmail.com>
| 2021-03-02 18:35:30 -0500 |
|---|---|---|
| committer |  Kent Overstreet <kent.overstreet@linux.dev>
| 2023-10-22 17:08:58 -0400 |
| commit | ab2a29ccffd0e9fe62afb8bbd45e1709f9726942 (patch) | |
| tree | 506bd3b3614eaf0dd3ee9f94af28c4a81117cf00 /fs/bcachefs/inode.h | |
| parent | bcachefs: Start using bpos.snapshot field (diff) | |
| download | linux-ab2a29ccffd0e9fe62afb8bbd45e1709f9726942.tar.gz linux-ab2a29ccffd0e9fe62afb8bbd45e1709f9726942.tar.bz2 linux-ab2a29ccffd0e9fe62afb8bbd45e1709f9726942.zip | |
bcachefs: Inode backpointers
This patch adds two new inode fields, bi_dir and bi_dir_offset, that
point back to the inode's dirent.
Since we're only adding fields for a single backpointer, files that have
been hardlinked won't necessarily have valid backpointers: we also add a
new inode flag, BCH_INODE_BACKPTR_UNTRUSTED, that's set if an inode has
ever had multiple links to it. That's ok, because we only really need
this functionality for directories, which can never have multiple
hardlinks - when we add subvolumes, we'll need a way to enemurate and
print subvolumes, and this will let us reconstruct a path to a subvolume
root given a subvolume root inode.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/inode.h')
| -rw-r--r-- | fs/bcachefs/inode.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/bcachefs/inode.h b/fs/bcachefs/inode.h index 1caf036ae928..6bad6dfb7989 100644 --- a/fs/bcachefs/inode.h +++ b/fs/bcachefs/inode.h @@ -69,7 +69,8 @@ void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *, uid_t, gid_t, umode_t, dev_t, struct bch_inode_unpacked *); -int bch2_inode_create(struct btree_trans *, struct bch_inode_unpacked *); +struct btree_iter *bch2_inode_create(struct btree_trans *, + struct bch_inode_unpacked *); int bch2_inode_rm(struct bch_fs *, u64, bool); |