From 31db9f7c23fbf7e95026143f79645de6507b583b Mon Sep 17 00:00:00 2001 From: Alexander Block Date: Wed, 25 Jul 2012 23:19:24 +0200 Subject: Btrfs: introduce BTRFS_IOC_SEND for btrfs send/receive This patch introduces the BTRFS_IOC_SEND ioctl that is required for send. It allows btrfs-progs to implement full and incremental sends. Patches for btrfs-progs will follow. Signed-off-by: Alexander Block Reviewed-by: David Sterba Reviewed-by: Arne Jansen Reviewed-by: Jan Schmidt Reviewed-by: Alex Lyakas --- fs/btrfs/ioctl.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'fs/btrfs/ioctl.h') diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 0c505d7ff8ed..27097e8bfa39 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -310,6 +310,15 @@ struct btrfs_ioctl_received_subvol_args { __u64 reserved[16]; /* in */ }; +struct btrfs_ioctl_send_args { + __s64 send_fd; /* in */ + __u64 clone_sources_count; /* in */ + __u64 __user *clone_sources; /* in */ + __u64 parent_root; /* in */ + __u64 flags; /* in */ + __u64 reserved[4]; /* in */ +}; + #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ @@ -376,6 +385,7 @@ struct btrfs_ioctl_received_subvol_args { struct btrfs_ioctl_ino_path_args) #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \ struct btrfs_ioctl_received_subvol_args) +#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args) #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \ struct btrfs_ioctl_get_dev_stats) #define BTRFS_IOC_GET_AND_RESET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 53, \ -- cgit v1.2.3