summaryrefslogtreecommitdiff
path: root/fs/bcachefs/bcachefs_ioctl.h
diff options
context:
space:
mode:
authorKent Overstreet <kent.overstreet@gmail.com>2021-03-16 00:42:25 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2023-10-22 17:09:12 -0400
commit14b393ee768e8339b9c64f82df24e8c081bdbff9 (patch)
treeb13103661ffcc09863d14e1c33b951d21d1941a3 /fs/bcachefs/bcachefs_ioctl.h
parent8948fc8f1521702d87a21b9c43c1228e53e3fc29 (diff)
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.h15
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 */