Routines to "pretty print" various lustre data structs. Useful for debugging.

diff --git a/lustre/lib/dump.c b/lustre/lib/dump.c
new file mode 100644 (file)
index 0000000..8cdd204
--- /dev/null
+++ b/lustre/lib/dump.c
@@ -0,0 +1,69 @@
+#define DEBUG_SUBSYSTEM D_OTHER
+
+#include <linux/obd_ost.h>
+#include <linux/lustre_net.h>
+
+int dump_ioo(struct obd_ioobj *ioo)
+{
+        CERROR("obd_ioobj: ioo_id=%Ld, ioo_gr=%Ld, ioo_type=%d, ioo_bufct=%d\n",
+               ioo->ioo_id, ioo->ioo_gr, ioo->ioo_type, ioo->ioo_bufcnt);
+        return -EINVAL;
+}
+
+int dump_niobuf(struct niobuf *nb)
+{
+        CERROR("niobuf: addr=%Ld, offset=%Ld, len=%d, flags=%x, xid=%d\n",
+               nb->addr, nb->offset, nb->len, nb->flags, nb->xid);
+        CERROR("nb->page: index = %ld\n", ((struct page *)nb->page)->index);
+
+        return -EINVAL;
+}
+
+int dump_obdo(struct obdo *oa)
+{
+        CERROR("obdo: o_valid = %08x\n", oa->o_valid);
+        if (oa->o_valid & OBD_MD_FLID)
+                CERROR("obdo: o_id = %Ld\n", oa->o_id);
+        if (oa->o_valid & OBD_MD_FLATIME)
+                CERROR("obdo: o_atime = %Ld\n", oa->o_atime);
+        if (oa->o_valid & OBD_MD_FLMTIME)
+                CERROR("obdo: o_mtime = %Ld\n", oa->o_mtime);
+        if (oa->o_valid & OBD_MD_FLCTIME)
+                CERROR("obdo: o_ctime = %Ld\n", oa->o_ctime);
+        if (oa->o_valid & OBD_MD_FLSIZE)
+                CERROR("obdo: o_size = %Ld\n", oa->o_size);
+        if (oa->o_valid & OBD_MD_FLBLOCKS)   /* allocation of space */
+                CERROR("obdo: o_blocks = %Ld\n", oa->o_blocks);
+        if (oa->o_valid & OBD_MD_FLBLKSZ)
+                CERROR("obdo: o_blksize = %d\n", oa->o_blksize);
+        if (oa->o_valid & OBD_MD_FLMODE)
+                CERROR("obdo: o_mode = %o\n", oa->o_mode);
+        if (oa->o_valid & OBD_MD_FLUID)
+                CERROR("obdo: o_uid = %d\n", oa->o_uid);
+        if (oa->o_valid & OBD_MD_FLGID)
+                CERROR("obdo: o_gid = %d\n", oa->o_gid);
+        if (oa->o_valid & OBD_MD_FLFLAGS)
+                CERROR("obdo: o_flags = %x\n", oa->o_flags);
+        if (oa->o_valid & OBD_MD_FLNLINK)
+                CERROR("obdo: o_nlink = %d\n", oa->o_nlink);
+        if (oa->o_valid & OBD_MD_FLGENER)
+                CERROR("obdo: o_generation = %d\n", oa->o_generation);
+
+        return -EINVAL;
+}
+
+/* XXX assumes only a single page in request */
+int dump_req(struct ptlrpc_request *req)
+{
+        struct ost_body *body = lustre_msg_buf(req->rq_reqmsg, 0);
+        struct obd_ioobj *ioo = lustre_msg_buf(req->rq_reqmsg, 1);
+        struct niobuf *nb = lustre_msg_buf(req->rq_reqmsg, 2);
+
+        CERROR("ost_body: connid = %d, data = %d\n", body->connid, body->data);
+        dump_obdo(&body->oa);
+        dump_niobuf(nb);
+        dump_ioo(ioo);
+
+        return -EINVAL;
+}
+