1 #ifndef FS_CEPH_IOCTL_H 2 #define FS_CEPH_IOCTL_H 3 4 #include <linux/ioctl.h> 5 #include <linux/types.h> 6 7 #define CEPH_IOCTL_MAGIC 0x97 8 9 /* just use u64 to align sanely on all archs */ 10 struct ceph_ioctl_layout { 11 __u64 stripe_unit, stripe_count, object_size; 12 __u64 data_pool; 13 __s64 preferred_osd; 14 }; 15 16 #define CEPH_IOC_GET_LAYOUT _IOR(CEPH_IOCTL_MAGIC, 1, \ 17 struct ceph_ioctl_layout) 18 #define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2, \ 19 struct ceph_ioctl_layout) 20 21 /* 22 * Extract identity, address of the OSD and object storing a given 23 * file offset. 24 */ 25 struct ceph_ioctl_dataloc { 26 __u64 file_offset; /* in+out: file offset */ 27 __u64 object_offset; /* out: offset in object */ 28 __u64 object_no; /* out: object # */ 29 __u64 object_size; /* out: object size */ 30 char object_name[64]; /* out: object name */ 31 __u64 block_offset; /* out: offset in block */ 32 __u64 block_size; /* out: block length */ 33 __s64 osd; /* out: osd # */ 34 struct sockaddr_storage osd_addr; /* out: osd address */ 35 }; 36 37 #define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3, \ 38 struct ceph_ioctl_dataloc) 39 40 #define CEPH_IOC_LAZYIO _IO(CEPH_IOCTL_MAGIC, 4) 41 42 #endif 43