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| author |   Boris Burkov <boris@bur.io> | 2023-05-16 16:35:45 -0700 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2023-10-12 16:44:10 +0200 |
| commit | 182940f4f4dbd932776414744c8de64333957725 (patch) | |
| tree | 07417b40b655ad74807cd02963c966aaf8eef358 /include/uapi/linux/btrfs_tree.h | |
| parent | btrfs: qgroup: introduce quota mode (diff) | |
| download | wireguard-linux-182940f4f4dbd932776414744c8de64333957725.tar.xz wireguard-linux-182940f4f4dbd932776414744c8de64333957725.zip | |
btrfs: qgroup: add new quota mode for simple quotas
Add a new quota mode called "simple quotas". It can be enabled by the
existing quota enable ioctl via a new command, and sets an incompat
bit, as the implementation of simple quotas will make backwards
incompatible changes to the disk format of the extent tree.
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'include/uapi/linux/btrfs_tree.h')
| -rw-r--r-- | include/uapi/linux/btrfs_tree.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h index ca65d7b7a6ca..a1d5347f6adb 100644 --- a/include/uapi/linux/btrfs_tree.h +++ b/include/uapi/linux/btrfs_tree.h @@ -1233,9 +1233,17 @@ static inline __u16 btrfs_qgroup_level(__u64 qgroupid) */ #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2) +/* + * Whether or not this filesystem is using simple quotas. Not exactly the + * incompat bit, because we support using simple quotas, disabling it, then + * going back to full qgroup quotas. + */ +#define BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE (1ULL << 3) + #define BTRFS_QGROUP_STATUS_FLAGS_MASK (BTRFS_QGROUP_STATUS_FLAG_ON | \ BTRFS_QGROUP_STATUS_FLAG_RESCAN | \ - BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT) + BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT | \ + BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE) #define BTRFS_QGROUP_STATUS_VERSION 1 |