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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-06-27 22:09:35 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:10:06 -0400 |
| commit | ba8eeae8eee0aae03eb6be0372519b72057d312c (patch) | |
| tree | cf0e95c6cdb1b8352d81fae07928df901e628334 /fs/bcachefs/btree_io.c | |
| parent | 30a8278a1e2f627b1f28ab521e40eecacb223efc (diff) | |
| download | linux-stable-ba8eeae8eee0aae03eb6be0372519b72057d312c.tar.gz linux-stable-ba8eeae8eee0aae03eb6be0372519b72057d312c.tar.bz2 linux-stable-ba8eeae8eee0aae03eb6be0372519b72057d312c.zip | |
bcachefs: bcachefs_metadata_version_major_minor
This introduces major/minor versioning to the superblock version number.
Major version number changes indicate incompatible releases; we can move
forward to a new major version number, but not backwards. Minor version
numbers indicate compatible changes - these add features, but can still
be mounted and used by old versions.
With the recent patches that make it possible to roll out new btrees and
key types without breaking compatibility, we should be able to roll out
most new features without incompatible changes.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/btree_io.c')
| -rw-r--r-- | fs/bcachefs/btree_io.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/bcachefs/btree_io.c b/fs/bcachefs/btree_io.c index a8197c500894..a8f7b71139a6 100644 --- a/fs/bcachefs/btree_io.c +++ b/fs/bcachefs/btree_io.c @@ -701,7 +701,9 @@ static int validate_bset(struct bch_fs *c, struct bch_dev *ca, btree_err_on(!bch2_version_compatible(version), BTREE_ERR_INCOMPATIBLE, c, ca, b, i, - "unsupported bset version %u", version); + "unsupported bset version %u.%u", + BCH_VERSION_MAJOR(version), + BCH_VERSION_MINOR(version)); if (btree_err_on(version < c->sb.version_min, BTREE_ERR_FIXABLE, c, NULL, b, i, @@ -713,7 +715,8 @@ static int validate_bset(struct bch_fs *c, struct bch_dev *ca, mutex_unlock(&c->sb_lock); } - if (btree_err_on(version > c->sb.version, + if (btree_err_on(BCH_VERSION_MAJOR(version) > + BCH_VERSION_MAJOR(c->sb.version), BTREE_ERR_FIXABLE, c, NULL, b, i, "bset version %u newer than superblock version %u", version, c->sb.version)) { |