From: Samuel Just <sjust@redhat.com>
Date: Tue, 31 Aug 2021 04:14:07 +0000 (-0700)
Subject: crimson/os/seastore/lba_manager: improve add_pin debugging
X-Git-Tag: v17.1.0~932^2~2
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=1f362615d925be6ddb84a6340bbc752231f87a71;p=ceph.git

crimson/os/seastore/lba_manager: improve add_pin debugging

Signed-off-by: Samuel Just <sjust@redhat.com>
---

diff --git a/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc b/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc
index 0168be0236aea..549dabaae0dab 100644
--- a/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc
+++ b/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc
@@ -112,7 +112,13 @@ void btree_pin_set_t::add_pin(btree_range_pin_t &pin)
 
   auto [prev, inserted] = pins.insert(pin);
   if (!inserted) {
-    logger().error("{}: unable to add {}, found {}", __func__, pin, *prev);
+    logger().error(
+      "{}: unable to add {} ({}), found {} ({})",
+      __func__,
+      pin,
+      *(pin.extent),
+      *prev,
+      *(prev->extent));
     ceph_assert(0 == "impossible");
     return;
   }