diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-29 23:25:07 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-01 19:47:07 +0300 |
| commit | 84f1638795da1ff2084597de4251e9054f1ad728 (patch) | |
| tree | e3624d44235472e8d3e170af4a53686cfa5a945f /fs/bcachefs/super-io.h | |
| parent | 8b16413cda7c46d47f8071165b3071f8a9369199 (diff) | |
| download | linux-84f1638795da1ff2084597de4251e9054f1ad728.tar.xz | |
bcachefs: bch_sb_field_downgrade
Add a new superblock section that contains a list of
{ minor version, recovery passes, errors_to_fix }
that is - a list of recovery passes that must be run when downgrading
past a given version, and a list of errors to silently fix.
The upcoming disk accounting rewrite is not going to be fully
compatible: we're going to have to regenerate accounting both when
upgrading to the new version, and also from downgrading from the new
version, since the new method of doing disk space accounting is a
completely different architecture based on deltas, and synchronizing
them for every jounal entry write to maintain compatibility is going to
be too expensive and impractical.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/super-io.h')
| -rw-r--r-- | fs/bcachefs/super-io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/super-io.h b/fs/bcachefs/super-io.h index 589509ebe996..e41e5de531a0 100644 --- a/fs/bcachefs/super-io.h +++ b/fs/bcachefs/super-io.h @@ -93,7 +93,7 @@ static inline void bch2_check_set_feature(struct bch_fs *c, unsigned feat) __bch2_check_set_feature(c, feat); } -void bch2_sb_maybe_downgrade(struct bch_fs *); +bool bch2_check_version_downgrade(struct bch_fs *); void bch2_sb_upgrade(struct bch_fs *, unsigned); void bch2_sb_field_to_text(struct printbuf *, struct bch_sb *, |