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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-06-28 19:59:56 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:10:06 -0400 |
| commit | 24964e1c5c89e00ca55909ab24ce8d28e2b46406 (patch) | |
| tree | 6ca19695501bb5947532e799c319c570e653f16e /fs/bcachefs/bcachefs.h | |
| parent | 7c50140fce00120b1dcf674759393267689ca2d8 (diff) | |
| download | linux-stable-24964e1c5c89e00ca55909ab24ce8d28e2b46406.tar.gz linux-stable-24964e1c5c89e00ca55909ab24ce8d28e2b46406.tar.bz2 linux-stable-24964e1c5c89e00ca55909ab24ce8d28e2b46406.zip | |
bcachefs: BCH_SB_VERSION_UPGRADE_COMPLETE()
Version upgrades are not atomic operations: when we do a version upgrade
we need to update the superblock before we start using new features, and
then when the upgrade completes we need to update the superblock again.
This adds a new superblock field so we can detect and handle incomplete
version upgrades.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/bcachefs.h')
| -rw-r--r-- | fs/bcachefs/bcachefs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/bcachefs/bcachefs.h b/fs/bcachefs/bcachefs.h index a8488d4e18e8..d7f030aa3039 100644 --- a/fs/bcachefs/bcachefs.h +++ b/fs/bcachefs/bcachefs.h @@ -712,6 +712,7 @@ struct bch_fs { u16 version; u16 version_min; + u16 version_upgrade_complete; u8 nr_devices; u8 clean; @@ -1134,6 +1135,12 @@ static inline bool bch2_dev_exists2(const struct bch_fs *c, unsigned dev) return dev < c->sb.nr_devices && c->devs[dev]; } +static inline bool bch2_version_upgrading_to(const struct bch_fs *c, unsigned new_version) +{ + return c->sb.version_upgrade_complete < new_version && + c->sb.version >= new_version; +} + #define BKEY_PADDED_ONSTACK(key, pad) \ struct { struct bkey_i key; __u64 key ## _pad[pad]; } |