diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2021-03-16 07:42:25 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:12 +0300 |
| commit | 14b393ee768e8339b9c64f82df24e8c081bdbff9 (patch) | |
| tree | b13103661ffcc09863d14e1c33b951d21d1941a3 /fs/bcachefs/bcachefs_ioctl.h | |
| parent | 8948fc8f1521702d87a21b9c43c1228e53e3fc29 (diff) | |
| download | linux-14b393ee768e8339b9c64f82df24e8c081bdbff9.tar.xz | |
bcachefs: Subvolumes, snapshots
This patch adds subvolume.c - support for the subvolumes and snapshots
btrees and related data types and on disk data structures. The next
patches will start hooking up this new code to existing code.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Diffstat (limited to 'fs/bcachefs/bcachefs_ioctl.h')
| -rw-r--r-- | fs/bcachefs/bcachefs_ioctl.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/bcachefs/bcachefs_ioctl.h b/fs/bcachefs/bcachefs_ioctl.h index 1ef9907e07ad..66ab3aea9767 100644 --- a/fs/bcachefs/bcachefs_ioctl.h +++ b/fs/bcachefs/bcachefs_ioctl.h @@ -78,6 +78,9 @@ struct bch_ioctl_incremental { #define BCH_IOCTL_DISK_RESIZE _IOW(0xbc, 14, struct bch_ioctl_disk_resize) #define BCH_IOCTL_DISK_RESIZE_JOURNAL _IOW(0xbc,15, struct bch_ioctl_disk_resize_journal) +#define BCH_IOCTL_SUBVOLUME_CREATE _IOW(0xbc, 16, struct bch_ioctl_subvolume) +#define BCH_IOCTL_SUBVOLUME_DESTROY _IOW(0xbc, 17, struct bch_ioctl_subvolume) + /* ioctl below act on a particular file, not the filesystem as a whole: */ #define BCHFS_IOC_REINHERIT_ATTRS _IOR(0xbc, 64, const char __user *) @@ -349,4 +352,16 @@ struct bch_ioctl_disk_resize_journal { __u64 nbuckets; }; +struct bch_ioctl_subvolume { + __u32 flags; + __u32 dirfd; + __u16 mode; + __u16 pad[3]; + __u64 dst_ptr; + __u64 src_ptr; +}; + +#define BCH_SUBVOL_SNAPSHOT_CREATE (1U << 0) +#define BCH_SUBVOL_SNAPSHOT_RO (1U << 1) + #endif /* _BCACHEFS_IOCTL_H */ |