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