lttng: Add more tracing to librbd

Includes:
- aio_complete
- aio_discard
- aio_flush
- aio_get_return_value
- aio_is_complete
- aio_read
- aio_wait_for_complete
- aio_write
- copy
- discard
- flush
- invalidate_cache
- rename
- resize
- Add ImageCtx pointer to trace points
- Add snap_name and readonly flag to trace point open_image_enter

Signed-off-by: Adam Crume <adamcrume@gmail.com>

src/librbd/AioCompletion.cc

@@ -10,6 +10,7 @@
 #include "librbd/internal.h"
 
 #include "librbd/AioCompletion.h"
+#include "tracing/librbd.h"
 
 #define dout_subsys ceph_subsys_rbd
 #undef dout_prefix
@@ -30,6 +31,16 @@ namespace librbd {
     lock.Unlock();
   }
 
+  int AioCompletion::wait_for_complete() {
+    tracepoint(librbd, aio_wait_for_complete_enter, this);
+    lock.Lock();
+    while (!done)
+      cond.Wait(lock);
+    lock.Unlock();
+    tracepoint(librbd, aio_wait_for_complete_exit, 0);
+    return 0;
+  }
+
   void AioCompletion::finalize(CephContext *cct, ssize_t rval)
   {
     ldout(cct, 20) << "AioCompletion::finalize() " << (void*)this << " rval " << rval << " read_buf " << (void*)read_buf
@@ -54,6 +65,32 @@ namespace librbd {
     }
   }
 
+  void AioCompletion::complete() {
+    tracepoint(librbd, aio_complete_enter, this, rval);
+    utime_t elapsed;
+    assert(lock.is_locked());
+    elapsed = ceph_clock_now(ictx->cct) - start_time;
+    switch (aio_type) {
+    case AIO_TYPE_READ:
+      ictx->perfcounter->tinc(l_librbd_aio_rd_latency, elapsed); break;
+    case AIO_TYPE_WRITE:
+      ictx->perfcounter->tinc(l_librbd_aio_wr_latency, elapsed); break;
+    case AIO_TYPE_DISCARD:
+      ictx->perfcounter->tinc(l_librbd_aio_discard_latency, elapsed); break;
+    case AIO_TYPE_FLUSH:
+      ictx->perfcounter->tinc(l_librbd_aio_flush_latency, elapsed); break;
+    default:
+      lderr(ictx->cct) << "completed invalid aio_type: " << aio_type << dendl;
+      break;
+    }
+    if (complete_cb) {
+      complete_cb(rbd_comp, complete_arg);
+    }
+    done = true;
+    cond.Signal();
+    tracepoint(librbd, aio_complete_exit);
+  }
+
   void AioCompletion::complete_request(CephContext *cct, ssize_t r)
   {
     ldout(cct, 20) << "AioCompletion::complete_request() "
@@ -75,6 +112,26 @@ namespace librbd {
     put_unlock();
   }
 
+  bool AioCompletion::is_complete() {
+    tracepoint(librbd, aio_is_complete_enter, this);
+    bool done;
+    {
+      Mutex::Locker l(lock);
+      done = this->done;
+    }
+    tracepoint(librbd, aio_is_complete_exit, done);
+    return done;
+  }
+
+  ssize_t AioCompletion::get_return_value() {
+    tracepoint(librbd, aio_get_return_value_enter, this);
+    lock.Lock();
+    ssize_t r = rval;
+    lock.Unlock();
+    tracepoint(librbd, aio_get_return_value_exit, r);
+    return r;
+  }
+
   void C_AioRead::finish(int r)
   {
     ldout(m_cct, 10) << "C_AioRead::finish() " << this << " r = " << r << dendl;

src/librbd/AioCompletion.h

@@ -72,13 +72,7 @@ namespace librbd {
     ~AioCompletion() {
     }
 
-    int wait_for_complete() {
-      lock.Lock();
-      while (!done)
-	cond.Wait(lock);
-      lock.Unlock();
-      return 0;
-    }
+    int wait_for_complete();
 
     void add_request() {
       lock.Lock();
@@ -97,29 +91,7 @@ namespace librbd {
       start_time = ceph_clock_now(ictx->cct);
     }
 
-    void complete() {
-      utime_t elapsed;
-      assert(lock.is_locked());
-      elapsed = ceph_clock_now(ictx->cct) - start_time;
-      switch (aio_type) {
-      case AIO_TYPE_READ:
-	ictx->perfcounter->tinc(l_librbd_aio_rd_latency, elapsed); break;
-      case AIO_TYPE_WRITE:
-	ictx->perfcounter->tinc(l_librbd_aio_wr_latency, elapsed); break;
-      case AIO_TYPE_DISCARD:
-	ictx->perfcounter->tinc(l_librbd_aio_discard_latency, elapsed); break;
-      case AIO_TYPE_FLUSH:
-	ictx->perfcounter->tinc(l_librbd_aio_flush_latency, elapsed); break;
-      default:
-	lderr(ictx->cct) << "completed invalid aio_type: " << aio_type << dendl;
-	break;
-      }
-      if (complete_cb) {
-	complete_cb(rbd_comp, complete_arg);
-      }
-      done = true;
-      cond.Signal();
-    }
+    void complete();
 
     void set_complete_cb(void *cb_arg, callback_t cb) {
       complete_cb = cb;
@@ -128,17 +100,9 @@ namespace librbd {
 
     void complete_request(CephContext *cct, ssize_t r);
 
-    bool is_complete() {
-      Mutex::Locker l(lock);
-      return done;
-    }
+    bool is_complete();
 
-    ssize_t get_return_value() {
-      lock.Lock();
-      ssize_t r = rval;
-      lock.Unlock();
-      return r;
-    }
+    ssize_t get_return_value();
 
     void get() {
       lock.Lock();

src/librbd/internal.cc

@@ -1075,6 +1075,7 @@ reprotect_and_return_err:
 
   int rename(IoCtx& io_ctx, const char *srcname, const char *dstname)
   {
+    tracepoint(librbd, rename_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), srcname, dstname);
     CephContext *cct = (CephContext *)io_ctx.cct();
     ldout(cct, 20) << "rename " << &io_ctx << " " << srcname << " -> "
 		   << dstname << dendl;
@@ -1097,6 +1098,7 @@ reprotect_and_return_err:
       r = cls_client::get_id(&io_ctx, src_oid, &id);
       if (r < 0) {
 	lderr(cct) << "error reading image id: " << cpp_strerror(r) << dendl;
+	tracepoint(librbd, rename_exit, r);
 	return r;
       }
     }
@@ -1107,6 +1109,7 @@ reprotect_and_return_err:
     if (r < 0) {
       lderr(cct) << "error reading source object: " << src_oid << ": "
 		 << cpp_strerror(r) << dendl;
+      tracepoint(librbd, rename_exit, r);
       return r;
     }
 
@@ -1118,6 +1121,7 @@ reprotect_and_return_err:
       if (r < 0) {
 	lderr(cct) << "error reading source object omap values: "
 		   << cpp_strerror(r) << dendl;
+	tracepoint(librbd, rename_exit, r);
 	return r;
       }
       omap_values.insert(outbl.begin(), outbl.end());
@@ -1129,10 +1133,12 @@ reprotect_and_return_err:
     if (r < 0 && r != -ENOENT) {
       lderr(cct) << "error checking for existing image called "
 		 << dstname << ":" << cpp_strerror(r) << dendl;
+      tracepoint(librbd, rename_exit, r);
       return r;
     }
     if (r == 0) {
       lderr(cct) << "rbd image " << dstname << " already exists" << dendl;
+      tracepoint(librbd, rename_exit, -EEXIST);
       return -EEXIST;
     }
 
@@ -1145,6 +1151,7 @@ reprotect_and_return_err:
     if (r < 0) {
       lderr(cct) << "error writing destination object: " << dst_oid << ": "
 		 << cpp_strerror(r) << dendl;
+      tracepoint(librbd, rename_exit, r);
       return r;
     }
 
@@ -1154,6 +1161,7 @@ reprotect_and_return_err:
 	io_ctx.remove(dst_oid);
 	lderr(cct) << "couldn't add " << dstname << " to directory: "
 		   << cpp_strerror(r) << dendl;
+        tracepoint(librbd, rename_exit, r);
 	return r;
       }
       r = tmap_rm(io_ctx, srcname);
@@ -1166,6 +1174,7 @@ reprotect_and_return_err:
 				       srcname, dstname, id);
       if (r < 0) {
 	lderr(cct) << "error updating directory: " << cpp_strerror(r) << dendl;
+        tracepoint(librbd, rename_exit, r);
 	return r;
       }
     }
@@ -1180,6 +1189,7 @@ reprotect_and_return_err:
       notify_change(io_ctx, old_header_name(srcname), NULL, NULL);
     }
 
+    tracepoint(librbd, rename_exit, 0);
     return 0;
   }
 
@@ -1530,30 +1540,38 @@ reprotect_and_return_err:
 
   int resize(ImageCtx *ictx, uint64_t size, ProgressContext& prog_ctx)
   {
+    tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), size);
     CephContext *cct = ictx->cct;
     ldout(cct, 20) << "resize " << ictx << " " << ictx->size << " -> "
 		   << size << dendl;
 
-    if (ictx->read_only)
+    if (ictx->read_only) {
+      tracepoint(librbd, resize_exit, -EROFS);
       return -EROFS;
+    }
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, resize_exit, r);
       return r;
+    }
 
     RWLock::WLocker l(ictx->md_lock);
     if (size < ictx->size && ictx->object_cacher) {
       // need to invalidate since we're deleting objects, and
       // ObjectCacher doesn't track non-existent objects
       r = ictx->invalidate_cache();
-      if (r < 0)
+      if (r < 0) {
+        tracepoint(librbd, resize_exit, r);
 	return r;
+      }
     }
     resize_helper(ictx, size, prog_ctx);
 
     ldout(cct, 2) << "done." << dendl;
 
     ictx->perfcounter->inc(l_librbd_resize);
+    tracepoint(librbd, resize_exit, 0);
     return 0;
   }
 
@@ -2027,6 +2045,7 @@ reprotect_and_return_err:
 
   int copy(ImageCtx *src, ImageCtx *dest, ProgressContext &prog_ctx)
   {
+    tracepoint(librbd, copy_enter, src, src->name.c_str(), src->id.c_str(), dest, dest->name.c_str(), dest->id.c_str());
     src->md_lock.get_read();
     src->snap_lock.get_read();
     uint64_t src_size = src->get_image_size(src->snap_id);
@@ -2043,6 +2062,7 @@ reprotect_and_return_err:
     if (dest_size < src_size) {
       lderr(cct) << " src size " << src_size << " >= dest size "
 		 << dest_size << dendl;
+      tracepoint(librbd, copy_exit, -EINVAL);
       return -EINVAL;
     }
     int r;
@@ -2061,6 +2081,7 @@ reprotect_and_return_err:
 	lderr(cct) << "could not read from source image from "
 		   << offset << " to " << offset + len << ": "
 		   << cpp_strerror(r) << dendl;
+	tracepoint(librbd, copy_exit, r);
 	return r;
       }
       prog_ctx.update_progress(offset, src_size);
@@ -2069,6 +2090,7 @@ reprotect_and_return_err:
     r = throttle.wait_for_ret();
     if (r >= 0)
       prog_ctx.update_progress(src_size, src_size);
+    tracepoint(librbd, copy_exit, r);
     return r;
   }
 
@@ -2110,7 +2132,7 @@ reprotect_and_return_err:
 
   int open_image(ImageCtx *ictx)
   {
-    tracepoint(librbd, open_image_enter, ictx->name.c_str(), ictx->id.c_str());
+    tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
     ldout(ictx->cct, 20) << "open_image: ictx = " << ictx
 			 << " name = '" << ictx->name
 			 << "' id = '" << ictx->id
@@ -2149,7 +2171,7 @@ reprotect_and_return_err:
 
   void close_image(ImageCtx *ictx)
   {
-    tracepoint(librbd, close_image_enter, ictx->name.c_str(), ictx->id.c_str());
+    tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
     ldout(ictx->cct, 20) << "close_image " << ictx << dendl;
     if (ictx->object_cacher)
       ictx->shutdown_cache(); // implicitly flushes
@@ -2666,7 +2688,7 @@ reprotect_and_return_err:
 
   ssize_t read(ImageCtx *ictx, const vector<pair<uint64_t,uint64_t> >& image_extents, char *buf, bufferlist *pbl)
   {
-    tracepoint(librbd, read_enter, ictx->name.c_str(), ictx->id.c_str());
+    tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
     for (vector<pair<uint64_t,uint64_t> >::const_iterator r = image_extents.begin();
 	 r != image_extents.end();
 	 ++r) {
@@ -2698,7 +2720,7 @@ reprotect_and_return_err:
 
   ssize_t write(ImageCtx *ictx, uint64_t off, size_t len, const char *buf)
   {
-    tracepoint(librbd, write_enter, ictx->name.c_str(), ictx->id.c_str(), off, len, buf);
+    tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), off, len, buf);
     utime_t start_time, elapsed;
     ldout(ictx->cct, 20) << "write " << ictx << " off = " << off << " len = "
 			 << len << dendl;
@@ -2746,6 +2768,7 @@ reprotect_and_return_err:
 
   int discard(ImageCtx *ictx, uint64_t off, uint64_t len)
   {
+    tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), off, len);
     utime_t start_time, elapsed;
     ldout(ictx->cct, 20) << "discard " << ictx << " off = " << off << " len = "
 			 << len << dendl;
@@ -2762,6 +2785,7 @@ reprotect_and_return_err:
     if (r < 0) {
       c->release();
       delete ctx;
+      tracepoint(librbd, discard_exit, r);
       return r;
     }
 
@@ -2770,13 +2794,16 @@ reprotect_and_return_err:
       cond.Wait(mylock);
     mylock.Unlock();
 
-    if (ret < 0)
+    if (ret < 0) {
+      tracepoint(librbd, discard_exit, ret);
       return ret;
+    }
 
     elapsed = ceph_clock_now(ictx->cct) - start_time;
     ictx->perfcounter->inc(l_librbd_discard_latency, elapsed);
     ictx->perfcounter->inc(l_librbd_discard);
     ictx->perfcounter->inc(l_librbd_discard_bytes, len);
+    tracepoint(librbd, discard_exit, len);
     return len;
   }
 
@@ -2883,12 +2910,15 @@ reprotect_and_return_err:
 
   int aio_flush(ImageCtx *ictx, AioCompletion *c)
   {
+    tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), c);
     CephContext *cct = ictx->cct;
     ldout(cct, 20) << "aio_flush " << ictx << " completion " << c <<  dendl;
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, aio_flush_exit, r);
       return r;
+    }
 
     ictx->user_flushed();
 
@@ -2908,21 +2938,26 @@ reprotect_and_return_err:
     c->put();
     ictx->perfcounter->inc(l_librbd_aio_flush);
 
+    tracepoint(librbd, aio_flush_exit, 0);
     return 0;
   }
 
   int flush(ImageCtx *ictx)
   {
+    tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
     CephContext *cct = ictx->cct;
     ldout(cct, 20) << "flush " << ictx << dendl;
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, flush_exit, r);
       return r;
+    }
 
     ictx->user_flushed();
     r = _flush(ictx);
     ictx->perfcounter->inc(l_librbd_flush);
+    tracepoint(librbd, flush_exit, r);
     return r;
   }
 
@@ -2945,32 +2980,42 @@ reprotect_and_return_err:
 
   int invalidate_cache(ImageCtx *ictx)
   {
+    tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
     CephContext *cct = ictx->cct;
     ldout(cct, 20) << "invalidate_cache " << ictx << dendl;
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, invalidate_cache_exit, r);
       return r;
+    }
 
     RWLock::WLocker l(ictx->md_lock);
-    return ictx->invalidate_cache();
+    r = ictx->invalidate_cache();
+    tracepoint(librbd, invalidate_cache_exit, r);
+    return r;
   }
 
   int aio_write(ImageCtx *ictx, uint64_t off, size_t len, const char *buf,
 		AioCompletion *c)
   {
+    tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), off, len, buf, c);
     CephContext *cct = ictx->cct;
     ldout(cct, 20) << "aio_write " << ictx << " off = " << off << " len = "
 		   << len << " buf = " << (void*)buf << dendl;
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, aio_write_exit, r);
       return r;
+    }
 
     uint64_t mylen = len;
     r = clip_io(ictx, off, &mylen);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, aio_write_exit, r);
       return r;
+    }
 
     ictx->snap_lock.get_read();
     snapid_t snap_id = ictx->snap_id;
@@ -2981,8 +3026,10 @@ reprotect_and_return_err:
     ictx->parent_lock.put_read();
     ictx->snap_lock.put_read();
 
-    if (snap_id != CEPH_NOSNAP || ictx->read_only)
+    if (snap_id != CEPH_NOSNAP || ictx->read_only) {
+      tracepoint(librbd, aio_write_exit, -EROFS);
       return -EROFS;
+    }
 
     ldout(cct, 20) << "  parent overlap " << overlap << dendl;
 
@@ -3035,22 +3082,28 @@ reprotect_and_return_err:
     ictx->perfcounter->inc(l_librbd_aio_wr_bytes, mylen);
 
     /* FIXME: cleanup all the allocated stuff */
+    tracepoint(librbd, aio_write_exit, r);
     return r;
   }
 
   int aio_discard(ImageCtx *ictx, uint64_t off, uint64_t len, AioCompletion *c)
   {
+    tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), off, len, c);
     CephContext *cct = ictx->cct;
     ldout(cct, 20) << "aio_discard " << ictx << " off = " << off << " len = "
 		   << len << dendl;
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, aio_discard_exit, r);
       return r;
+    }
 
     r = clip_io(ictx, off, &len);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, aio_discard_exit, r);
       return r;
+    }
 
     // TODO: check for snap
     ictx->snap_lock.get_read();
@@ -3062,8 +3115,10 @@ reprotect_and_return_err:
     ictx->parent_lock.put_read();
     ictx->snap_lock.put_read();
 
-    if (snap_id != CEPH_NOSNAP || ictx->read_only)
+    if (snap_id != CEPH_NOSNAP || ictx->read_only) {
+      tracepoint(librbd, aio_discard_exit, -EROFS);
       return -EROFS;
+    }
 
     // map
     vector<ObjectExtent> extents;
@@ -3121,6 +3176,7 @@ reprotect_and_return_err:
     ictx->perfcounter->inc(l_librbd_aio_discard_bytes, len);
 
     /* FIXME: cleanup all the allocated stuff */
+    tracepoint(librbd, aio_discard_exit, r);
     return r;
   }
 
@@ -3143,11 +3199,19 @@ reprotect_and_return_err:
   int aio_read(ImageCtx *ictx, const vector<pair<uint64_t,uint64_t> >& image_extents,
 	       char *buf, bufferlist *pbl, AioCompletion *c)
   {
+    tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), buf, c);
+    for (vector<pair<uint64_t,uint64_t> >::const_iterator r = image_extents.begin();
+	 r != image_extents.end();
+	 ++r) {
+      tracepoint(librbd, aio_read_extent, r->first, r->second);
+    }
     ldout(ictx->cct, 20) << "aio_read " << ictx << " completion " << c << " " << image_extents << dendl;
 
     int r = ictx_check(ictx);
-    if (r < 0)
+    if (r < 0) {
+      tracepoint(librbd, aio_read_exit, r);
       return r;
+    }
 
     ictx->snap_lock.get_read();
     snap_t snap_id = ictx->snap_id;
@@ -3162,8 +3226,10 @@ reprotect_and_return_err:
 	 ++p) {
       uint64_t len = p->second;
       r = clip_io(ictx, p->first, &len);
-      if (r < 0)
+      if (r < 0) {
+	tracepoint(librbd, aio_read_exit, r);
 	return r;
+      }
       if (len == 0)
 	continue;
 
@@ -3217,6 +3283,7 @@ reprotect_and_return_err:
     ictx->perfcounter->inc(l_librbd_aio_rd);
     ictx->perfcounter->inc(l_librbd_aio_rd_bytes, buffer_ofs);
 
+    tracepoint(librbd, aio_read_exit, ret);
     return ret;
   }
 

src/tracing/librbd.tp

@@ -3,9 +3,11 @@
 
 TRACEPOINT_EVENT(librbd, read_enter,
     TP_ARGS(
+        void*, imagectx,
         const char*, name,
         const char*, id),
     TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
         ctf_string(name, name)
         ctf_string(id, id)
     )
@@ -31,12 +33,14 @@ TRACEPOINT_EVENT(librbd, read_exit,
 
 TRACEPOINT_EVENT(librbd, write_enter,
     TP_ARGS(
+        void*, imagectx,
         const char*, name,
         const char*, id,
         uint64_t, off,
         size_t, len,
         const char*, buf),
     TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
         ctf_string(name, name)
         ctf_string(id, id)
         ctf_integer(uint64_t, off, off)
@@ -54,11 +58,17 @@ TRACEPOINT_EVENT(librbd, write_exit,
 
 TRACEPOINT_EVENT(librbd, open_image_enter,
     TP_ARGS(
+        void*, imagectx,
         const char*, name,
-        const char*, id),
+        const char*, id,
+        const char*, snap_name,
+        int, read_only),
     TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
         ctf_string(name, name)
         ctf_string(id, id)
+        ctf_string(snap_name, snap_name)
+        ctf_integer(uint8_t, read_only, read_only ? 1 : 0)
     )
 )
 
@@ -72,9 +82,11 @@ TRACEPOINT_EVENT(librbd, open_image_exit,
 
 TRACEPOINT_EVENT(librbd, close_image_enter,
     TP_ARGS(
+        void*, imagectx,
         const char*, name,
         const char*, id),
     TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
         ctf_string(name, name)
         ctf_string(id, id)
     )
@@ -162,3 +174,309 @@ TRACEPOINT_EVENT(librbd, remove_exit,
         ctf_integer(int, retval, retval)
     )
 )
+
+TRACEPOINT_EVENT(librbd, aio_write_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id,
+        uint64_t, off,
+        size_t, len,
+        const char*, buf,
+        const void*, completion),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+        ctf_integer(uint64_t, off, off)
+        ctf_integer(size_t, len, len)
+        ceph_ctf_sequence(unsigned char, buf, buf, size_t, len)
+        ctf_integer_hex(const void*, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_write_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_read_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id,
+        const char*, buf,
+        const void*, completion),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+        ctf_integer_hex(const void*, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_read_extent,
+    TP_ARGS(
+        uint64_t, offset,
+        uint64_t, length),
+    TP_FIELDS(
+        ctf_integer(uint64_t, offset, offset)
+        ctf_integer(uint64_t, length, length)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_read_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_discard_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id,
+        uint64_t, off,
+        uint64_t, len,
+        void*, completion),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+        ctf_integer(uint64_t, off, off)
+        ctf_integer(uint64_t, len, len)
+        ctf_integer_hex(void*, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_discard_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, invalidate_cache_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, invalidate_cache_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, flush_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, flush_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_flush_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id,
+        const void*, completion),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+        ctf_integer_hex(const void*, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_flush_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, copy_enter,
+    TP_ARGS(
+        void*, src_imagectx,
+        const char*, src_name,
+        const char*, src_id,
+        void*, dst_imagectx,
+        const char*, dst_name,
+        const char*, dst_id),
+    TP_FIELDS(
+        ctf_integer_hex(void*, src_imagectx, src_imagectx)
+        ctf_string(src_name, src_name)
+        ctf_string(src_id, src_id)
+        ctf_integer_hex(void*, dst_imagectx, dst_imagectx)
+        ctf_string(dst_name, dst_name)
+        ctf_string(dst_id, dst_id)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, copy_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, resize_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id,
+        uint64_t, size),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+        ctf_integer(uint64_t, size, size)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, resize_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, rename_enter,
+    TP_ARGS(
+        const char*, pool_name,
+        uint64_t, id,
+        const char*, srcname,
+        const char*, dstname),
+    TP_FIELDS(
+        ctf_string(pool_name, pool_name)
+        ctf_integer(uint64_t, id, id)
+        ctf_string(srcname, srcname)
+        ctf_string(dstname, dstname)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, rename_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, discard_enter,
+    TP_ARGS(
+        void*, imagectx,
+        const char*, name,
+        const char*, id,
+        uint64_t, off,
+        uint64_t, len),
+    TP_FIELDS(
+        ctf_integer_hex(void*, imagectx, imagectx)
+        ctf_string(name, name)
+        ctf_string(id, id)
+        ctf_integer(uint64_t, off, off)
+        ctf_integer(uint64_t, len, len)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, discard_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_is_complete_enter,
+    TP_ARGS(
+        rbd_completion_t, completion),
+    TP_FIELDS(
+        ctf_integer_hex(rbd_completion_t, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_is_complete_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_get_return_value_enter,
+    TP_ARGS(
+        rbd_completion_t, completion),
+    TP_FIELDS(
+        ctf_integer_hex(rbd_completion_t, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_get_return_value_exit,
+    TP_ARGS(
+        ssize_t, retval),
+    TP_FIELDS(
+        ctf_integer(ssize_t, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_wait_for_complete_enter,
+    TP_ARGS(
+        rbd_completion_t, completion),
+    TP_FIELDS(
+        ctf_integer_hex(rbd_completion_t, completion, completion)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_wait_for_complete_exit,
+    TP_ARGS(
+        int, retval),
+    TP_FIELDS(
+        ctf_integer(int, retval, retval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_complete_enter,
+    TP_ARGS(
+        rbd_completion_t, completion,
+        ssize_t, rval),
+    TP_FIELDS(
+        ctf_integer_hex(rbd_completion_t, completion, completion)
+        ctf_integer(ssize_t, rval, rval)
+    )
+)
+
+TRACEPOINT_EVENT(librbd, aio_complete_exit,
+    TP_ARGS(),
+    TP_FIELDS()
+)