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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-06-29 02:59:56 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:10:06 +0300 |
| commit | 24964e1c5c89e00ca55909ab24ce8d28e2b46406 (patch) | |
| tree | 6ca19695501bb5947532e799c319c570e653f16e /fs/bcachefs/bcachefs_format.h | |
| parent | 7c50140fce00120b1dcf674759393267689ca2d8 (diff) | |
| download | linux-24964e1c5c89e00ca55909ab24ce8d28e2b46406.tar.xz | |
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_format.h')
| -rw-r--r-- | fs/bcachefs/bcachefs_format.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/bcachefs/bcachefs_format.h b/fs/bcachefs/bcachefs_format.h index 49b86bfda76b..c397a3b96bd1 100644 --- a/fs/bcachefs/bcachefs_format.h +++ b/fs/bcachefs/bcachefs_format.h @@ -1748,6 +1748,11 @@ LE64_BITMASK(BCH_SB_JOURNAL_TRANSACTION_NAMES,struct bch_sb, flags[4], 32, 33); LE64_BITMASK(BCH_SB_NOCOW, struct bch_sb, flags[4], 33, 34); LE64_BITMASK(BCH_SB_WRITE_BUFFER_SIZE, struct bch_sb, flags[4], 34, 54); +/* flags[4] 56-64 unused: */ + +LE64_BITMASK(BCH_SB_VERSION_UPGRADE_COMPLETE, + struct bch_sb, flags[5], 0, 16); + /* * Features: * |