diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-04-02 15:12:49 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-05-21 20:14:15 -0400 |
| commit | c02e5b57283ad6fd8dec8d834bd340bf2627fcee (patch) | |
| tree | 8ade6f27a1447fcead8be2ad0da70b416e11b524 /fs/bcachefs/bcachefs_format.h | |
| parent | 58c36e6710d3b3cc050c35c42954cb03c3e01c59 (diff) | |
bcachefs: Single device mode
Single device filesystems are now identified by the block device name,
not the UUID - and single device filesystems with the same UUID can be
mounted simultaneously, without any special options.
This allocates a new bit in the superblock, BCH_SB_MULTI_DEVICE, which
indicates whether a filesystem has ever been multi device.
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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/bcachefs_format.h b/fs/bcachefs/bcachefs_format.h index 6cbc267445b7..22ee49408d11 100644 --- a/fs/bcachefs/bcachefs_format.h +++ b/fs/bcachefs/bcachefs_format.h @@ -846,7 +846,7 @@ LE64_BITMASK(BCH_SB_SHARD_INUMS, struct bch_sb, flags[3], 28, 29); LE64_BITMASK(BCH_SB_INODES_USE_KEY_CACHE,struct bch_sb, flags[3], 29, 30); LE64_BITMASK(BCH_SB_JOURNAL_FLUSH_DELAY,struct bch_sb, flags[3], 30, 62); LE64_BITMASK(BCH_SB_JOURNAL_FLUSH_DISABLED,struct bch_sb, flags[3], 62, 63); -/* one free bit */ +LE64_BITMASK(BCH_SB_MULTI_DEVICE, struct bch_sb, flags[3], 63, 64); LE64_BITMASK(BCH_SB_JOURNAL_RECLAIM_DELAY,struct bch_sb, flags[4], 0, 32); 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); |