From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Philipp Subject: [PATCH 3/5] Added support for an additional ioctl. Date: Wed, 13 Apr 2011 11:12:12 +0200 Message-ID: <1302685934-15737-4-git-send-email-philipp.andreas@gmail.com> References: <1302685934-15737-1-git-send-email-philipp.andreas@gmail.com> Cc: Andreas Philipp , lizf@cn.fujitsu.com To: linux-btrfs@vger.kernel.org Return-path: In-Reply-To: <1302685934-15737-1-git-send-email-philipp.andreas@gmail.com> List-ID: Added BTRFS_IOC_SNAP_CREATE_V2 and struct btrfs_ioctl_vol_args_v2 as defined in fs/btrfs/ioctl.h in the kernel sources. Signed-off-by: Andreas Philipp --- ioctl.h | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/ioctl.h b/ioctl.h index 776d7a9..358f814 100644 --- a/ioctl.h +++ b/ioctl.h @@ -30,6 +30,17 @@ struct btrfs_ioctl_vol_args { char name[BTRFS_PATH_NAME_MAX + 1]; }; +#define BTRFS_SUBVOL_RDONLY (1ULL << 1) +#define BTRFS_SUBVOL_NAME_MAX 4039 + +struct btrfs_ioctl_vol_args_v2 { + __s64 fd; + __u64 transid; + __u64 flags; + __u64 unused[4]; + char name[BTRFS_SUBVOL_NAME_MAX + 1]; +}; + struct btrfs_ioctl_search_key { /* which root are we searching. 0 is the tree of tree roots */ __u64 tree_id; @@ -132,6 +143,7 @@ struct btrfs_ioctl_space_args { struct btrfs_ioctl_space_info spaces[0]; }; +/* BTRFS_IOC_SNAP_CREATE is no longer used by the btrfs command */ #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ @@ -169,4 +181,6 @@ struct btrfs_ioctl_space_args { #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64) #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \ struct btrfs_ioctl_space_args) +#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \ + struct btrfs_ioctl_vol_args_v2) #endif -- 1.7.4.1