crimson/os/seastore: fix compiler error for gcc > 9 and clang13

Signed-off-by: Xuehan Xu <xxhdx1985126@gmail.com>

diff --git a/src/crimson/osd/osd_operations/background_recovery.cc b/src/crimson/osd/osd_operations/background_recovery.cc
index 7fb0556d7adce948df4439af48c4c9d44f79363d..c47a39aae3c694d5bf0f0e56f1166c74b4763c80 100644 (file)
--- a/src/crimson/osd/osd_operations/background_recovery.cc
+++ b/src/crimson/osd/osd_operations/background_recovery.cc
@@ -2,6 +2,7 @@
 // vim: ts=8 sw=2 smarttab
 
 #include <seastar/core/future.hh>
+#include <seastar/core/sleep.hh>
 
 #include "messages/MOSDOp.h"