[RFC PATCH 2/6] Btrfs-progs: update ioctl.h to support clone range ioctl
From: Alexander Block <hidden>
Date: 2012-07-04 13:40:09
Subsystem:
the rest · Maintainer:
Linus Torvalds
Added missing btrfs_ioctl_clone_range_args and BTRFS_IOC_CLONE_RANGE to ioctl.h Signed-off-by: Alexander Block <redacted> --- ioctl.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/ioctl.h b/ioctl.h
index 6670e08..023ca4c 100644
--- a/ioctl.h
+++ b/ioctl.h@@ -281,6 +281,13 @@ struct btrfs_ioctl_logical_ino_args { struct btrfs_ioctl_vol_args) #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \ struct btrfs_ioctl_vol_args) + +struct btrfs_ioctl_clone_range_args { + __s64 src_fd; + __u64 src_offset, src_length; + __u64 dest_offset; +}; + /* trans start and trans end are dangerous, and only for * use by applications that know how to avoid the * resulting deadlocks
@@ -296,7 +303,8 @@ struct btrfs_ioctl_logical_ino_args { struct btrfs_ioctl_vol_args) #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \ struct btrfs_ioctl_vol_args) -/* 13 is for CLONE_RANGE */ +#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \ + struct btrfs_ioctl_clone_range_args) #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
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1.7.10