diff options
Diffstat (limited to 'fs/ceph/ioctl.h')
| -rw-r--r-- | fs/ceph/ioctl.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h new file mode 100644 index 000000000000..25e4f1a9d059 --- /dev/null +++ b/fs/ceph/ioctl.h @@ -0,0 +1,40 @@ +#ifndef FS_CEPH_IOCTL_H +#define FS_CEPH_IOCTL_H + +#include <linux/ioctl.h> +#include <linux/types.h> + +#define CEPH_IOCTL_MAGIC 0x97 + +/* just use u64 to align sanely on all archs */ +struct ceph_ioctl_layout { + __u64 stripe_unit, stripe_count, object_size; + __u64 data_pool; + __s64 preferred_osd; +}; + +#define CEPH_IOC_GET_LAYOUT _IOR(CEPH_IOCTL_MAGIC, 1, \ + struct ceph_ioctl_layout) +#define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2, \ + struct ceph_ioctl_layout) + +/* + * Extract identity, address of the OSD and object storing a given + * file offset. + */ +struct ceph_ioctl_dataloc { + __u64 file_offset; /* in+out: file offset */ + __u64 object_offset; /* out: offset in object */ + __u64 object_no; /* out: object # */ + __u64 object_size; /* out: object size */ + char object_name[64]; /* out: object name */ + __u64 block_offset; /* out: offset in block */ + __u64 block_size; /* out: block length */ + __s64 osd; /* out: osd # */ + struct sockaddr_storage osd_addr; /* out: osd address */ +}; + +#define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3, \ + struct ceph_ioctl_dataloc) + +#endif |