crimson/os/seastore: only update onode sizes when necessary

Signed-off-by: Xuehan Xu <xuxuehan@qianxin.com>

diff --git a/src/crimson/os/seastore/seastore.cc b/src/crimson/os/seastore/seastore.cc
index 4a191e25bc59ba602d59ed11f49156adbd7e6d1b..39d7e7ec2314427511c3ea72c5d262831469aa55 100644 (file)
--- a/src/crimson/os/seastore/seastore.cc
+++ b/src/crimson/os/seastore/seastore.cc
@@ -1653,8 +1653,8 @@ SeaStore::Shard::_write(
 {
   LOG_PREFIX(SeaStore::_write);
   DEBUGT("onode={} {}~{}", *ctx.transaction, *onode, offset, len);
-  {
-    const auto &object_size = onode->get_layout().size;
+  const auto &object_size = onode->get_layout().size;
+  if (offset + len > object_size) {
     onode->update_onode_size(
       *ctx.transaction,
       std::max<uint64_t>(offset + len, object_size));