+#define OBT(dev) dev->obd_type->typ_ops
+#define OBP(dev,op) dev->obd_type->typ_ops->o_ ## op
+
+
+/*
+ * ======== OBD Metadata Support ===========
+ */
+
+extern int obd_init_obdo_cache(void);
+extern void obd_cleanup_obdo_cache(void);
+
+
+static inline int obdo_has_inline(struct obdo *obdo)
+{
+ return obdo->o_obdflags & OBD_FL_INLINEDATA;
+};
+
+static inline int obdo_has_obdmd(struct obdo *obdo)
+{
+ return obdo->o_obdflags & OBD_FL_OBDMDEXISTS;
+};
+
+/* support routines */
+extern kmem_cache_t *obdo_cachep;
+
+static __inline__ struct obdo *obdo_alloc(void)
+{
+ struct obdo *res = NULL;
+
+ res = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
+ memset(res, 0, sizeof (*res));
+
+ return res;
+}
+
+static __inline__ void obdo_free(struct obdo *oa)
+{
+ if ( !oa )
+ return;
+ kmem_cache_free(obdo_cachep, oa);
+}
+
+
+
+static __inline__ struct obdo *obdo_fromid(struct obd_conn *conn, obd_id id)
+{
+ struct obdo *res = NULL;
+
+ res = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
+ if ( !res ) {
+ EXIT;
+ return NULL;
+ }
+ memset(res, 0, sizeof(*res));
+ res->o_id = id;
+ if (OBP(conn->oc_dev, getattr)(conn, res)) {
+ OBD_FREE(res, sizeof(*res));
+ EXIT;
+ return NULL;
+ }
+ EXIT;
+ return res;
+}
+
+static inline void obdo_from_iattr(struct obdo *oa, struct iattr *attr)
+{
+ unsigned int ia_valid = attr->ia_valid;
+
+ if (ia_valid & ATTR_ATIME) {
+ oa->o_atime = attr->ia_atime;
+ oa->o_valid |= OBD_MD_FLATIME;
+ }
+ if (ia_valid & ATTR_MTIME) {
+ oa->o_mtime = attr->ia_mtime;
+ oa->o_valid |= OBD_MD_FLMTIME;
+ }
+ if (ia_valid & ATTR_CTIME) {
+ oa->o_ctime = attr->ia_ctime;
+ oa->o_valid |= OBD_MD_FLCTIME;
+ }
+ if (ia_valid & ATTR_SIZE) {
+ oa->o_size = attr->ia_size;
+ oa->o_valid |= OBD_MD_FLSIZE;
+ }
+ if (ia_valid & ATTR_MODE) {
+ oa->o_mode = attr->ia_mode;
+ oa->o_valid |= OBD_MD_FLMODE;
+ if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
+ oa->o_mode &= ~S_ISGID;
+ }
+ if (ia_valid & ATTR_UID)
+ {
+ oa->o_uid = attr->ia_uid;
+ oa->o_valid |= OBD_MD_FLUID;
+ }
+ if (ia_valid & ATTR_GID) {
+ oa->o_gid = attr->ia_gid;
+ oa->o_valid |= OBD_MD_FLGID;
+ }
+}
+
+
+static __inline__ void obdo_cpy_md(struct obdo *dst, struct obdo *src)
+{
+ CDEBUG(D_INODE, "flags %x\n", src->o_valid);
+ if ( src->o_valid & OBD_MD_FLATIME )
+ dst->o_atime = src->o_atime;
+ if ( src->o_valid & OBD_MD_FLMTIME )
+ dst->o_mtime = src->o_mtime;
+ if ( src->o_valid & OBD_MD_FLCTIME )
+ dst->o_ctime = src->o_ctime;
+ if ( src->o_valid & OBD_MD_FLSIZE )
+ dst->o_size = src->o_size;
+ if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
+ dst->o_blocks = src->o_blocks;
+ if ( src->o_valid & OBD_MD_FLBLKSZ )
+ dst->o_blksize = src->o_blksize;
+ if ( src->o_valid & OBD_MD_FLMODE )
+ dst->o_mode = src->o_mode;
+ if ( src->o_valid & OBD_MD_FLUID )
+ dst->o_uid = src->o_uid;
+ if ( src->o_valid & OBD_MD_FLGID )
+ dst->o_gid = src->o_gid;
+ if ( src->o_valid & OBD_MD_FLFLAGS )
+ dst->o_flags = src->o_flags;
+ if ( src->o_valid & OBD_MD_FLOBDFLG )
+ dst->o_obdflags = src->o_obdflags;
+ if ( src->o_valid & OBD_MD_FLNLINK )
+ dst->o_nlink = src->o_nlink;
+ if ( src->o_valid & OBD_MD_FLGENER )
+ dst->o_generation = src->o_generation;
+ if ( src->o_valid & OBD_MD_FLINLINE )
+ memcpy(dst->o_inline, src->o_inline, sizeof(src->o_inline));
+ if ( src->o_valid & OBD_MD_FLOBDMD )
+ memcpy(dst->o_obdmd, src->o_obdmd, sizeof(src->o_obdmd));
+
+ dst->o_valid |= src->o_valid;
+}
+
+static __inline__ void obdo_from_inode(struct obdo *dst, struct inode *src)
+{
+ CDEBUG(D_INODE, "flags %x\n", dst->o_valid);
+ if ( dst->o_valid & OBD_MD_FLID )
+ dst->o_id = src->i_ino;
+ if ( dst->o_valid & OBD_MD_FLATIME )
+ dst->o_atime = src->i_atime;
+ if ( dst->o_valid & OBD_MD_FLMTIME )
+ dst->o_mtime = src->i_mtime;
+ if ( dst->o_valid & OBD_MD_FLCTIME )
+ dst->o_ctime = src->i_ctime;
+ if ( dst->o_valid & OBD_MD_FLSIZE )
+ dst->o_size = src->i_size;
+ if ( dst->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
+ dst->o_blocks = src->i_blocks;
+ if ( dst->o_valid & OBD_MD_FLBLKSZ )
+ dst->o_blksize = src->i_blksize;
+ if ( dst->o_valid & OBD_MD_FLMODE )
+ dst->o_mode = src->i_mode;
+ if ( dst->o_valid & OBD_MD_FLUID )
+ dst->o_uid = src->i_uid;
+ if ( dst->o_valid & OBD_MD_FLGID )
+ dst->o_gid = src->i_gid;
+ if ( dst->o_valid & OBD_MD_FLFLAGS )
+ dst->o_flags = src->i_flags;
+ if ( dst->o_valid & OBD_MD_FLNLINK )
+ dst->o_nlink = src->i_nlink;
+ if ( dst->o_valid & OBD_MD_FLGENER )
+ dst->o_generation = src->i_generation;
+}
+
+static __inline__ void obdo_to_inode(struct inode *dst, struct obdo *src)
+{
+
+ CDEBUG(D_INODE, "flags %x\n", src->o_valid);
+ if ( src->o_valid & OBD_MD_FLID )
+ dst->i_ino = src->o_id;
+ if ( src->o_valid & OBD_MD_FLATIME )
+ dst->i_atime = src->o_atime;
+ if ( src->o_valid & OBD_MD_FLMTIME )
+ dst->i_mtime = src->o_mtime;
+ if ( src->o_valid & OBD_MD_FLCTIME )
+ dst->i_ctime = src->o_ctime;
+ if ( src->o_valid & OBD_MD_FLSIZE )
+ dst->i_size = src->o_size;
+ if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
+ dst->i_blocks = src->o_blocks;
+ if ( src->o_valid & OBD_MD_FLBLKSZ )
+ dst->i_blksize = src->o_blksize;
+ if ( src->o_valid & OBD_MD_FLMODE )
+ dst->i_mode = src->o_mode;
+ if ( src->o_valid & OBD_MD_FLUID )
+ dst->i_uid = src->o_uid;
+ if ( src->o_valid & OBD_MD_FLGID )
+ dst->i_gid = src->o_gid;
+ if ( src->o_valid & OBD_MD_FLFLAGS )
+ dst->i_flags = src->o_flags;
+ if ( src->o_valid & OBD_MD_FLNLINK )
+ dst->i_nlink = src->o_nlink;
+ if ( src->o_valid & OBD_MD_FLGENER )
+ dst->i_generation = src->o_generation;
+}
+
+static __inline__ int obdo_cmp_md(struct obdo *dst, struct obdo *src)
+{
+ int res = 1;
+
+ if ( src->o_valid & OBD_MD_FLMODE )
+ res = (res && (dst->o_mode == src->o_mode));
+ if ( src->o_valid & OBD_MD_FLUID )
+ res = (res && (dst->o_uid == src->o_uid));
+ if ( src->o_valid & OBD_MD_FLGID )
+ res = (res && (dst->o_gid == src->o_gid));
+ if ( src->o_valid & OBD_MD_FLSIZE )
+ res = (res && (dst->o_size == src->o_size));
+ if ( src->o_valid & OBD_MD_FLATIME )
+ res = (res && (dst->o_atime == src->o_atime));
+ if ( src->o_valid & OBD_MD_FLMTIME )
+ res = (res && (dst->o_mtime == src->o_mtime));
+ if ( src->o_valid & OBD_MD_FLCTIME )
+ res = (res && (dst->o_ctime == src->o_ctime));
+ if ( src->o_valid & OBD_MD_FLFLAGS )
+ res = (res && (dst->o_flags == src->o_flags));
+ /* allocation of space */
+ if ( src->o_valid & OBD_MD_FLBLOCKS )
+ res = (res && (dst->o_blocks == src->o_blocks));
+ return res;
+}
+
+