os/BlueStore: Adds checkes for lextent range overlaps to _fsck

Signed-off-by: Igor Fedotov <ifedotov@mirantis.com>

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 7f8c8fcf81bc9def97bc61784af7e21c17ea8d84..637a12344961ae94cc95b451956169758249563e 100644 (file)
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -2549,7 +2549,18 @@ int BlueStore::fsck()
        }
        // lextents
        map<int64_t,bluestore_extent_ref_map_t> local_blobs;
+       uint64_t lext_next_offset = 0, lext_prev_offset = 0;
        for (auto& l : o->onode.extent_map) {
+         if(l.first < lext_next_offset) {
+           derr << " " << oid << " lextent at 0x" 
+                << std::hex << l.first
+                << "overlaps with the previous one 0x" 
+                << lext_prev_offset << "~" << (lext_next_offset - lext_prev_offset)
+                << std::dec << dendl;
+           ++errors;
+         }
+         lext_next_offset = l.first + l.second.length;
+         lext_prev_offset = l.first;
          if (l.second.blob >= 0) {
            local_blobs[l.second.blob].get(l.second.offset, l.second.length);
          } else {