From: Yingxin Cheng <yingxin.cheng@intel.com>
Date: Wed, 30 Jun 2021 05:22:07 +0000 (+0800)
Subject: crimson/os/seastore/cache: wait io when read from Cache::extents
X-Git-Tag: v17.1.0~1508^2~1
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=b5762ca66bd445256530453ced9e0a351a528996;p=ceph-ci.git

crimson/os/seastore/cache: wait io when read from Cache::extents

Signed-off-by: Yingxin Cheng <yingxin.cheng@intel.com>
---

diff --git a/src/crimson/os/seastore/cache.cc b/src/crimson/os/seastore/cache.cc
index 49cb3a968ff..68782dfafcf 100644
--- a/src/crimson/os/seastore/cache.cc
+++ b/src/crimson/os/seastore/cache.cc
@@ -486,9 +486,12 @@ Cache::replay_delta(
       -> get_extent_ertr::future<CachedExtentRef> {
       auto retiter = extents.find_offset(addr);
       if (retiter != extents.end()) {
-	return seastar::make_ready_future<CachedExtentRef>(&*retiter);
+        CachedExtentRef ret = &*retiter;
+        return ret->wait_io().then([ret] {
+          return ret;
+        });
       } else {
-	return seastar::make_ready_future<CachedExtentRef>();
+        return seastar::make_ready_future<CachedExtentRef>();
       }
     };
     auto extent_fut = (delta.pversion == 0 ?