From 6ee6648ffab3d76d3e0263c46dfe9179aedca4cb Mon Sep 17 00:00:00 2001
From: Radoslaw Zarzynski <rzarzyns@redhat.com>
Date: Fri, 21 Dec 2018 12:22:20 +0100
Subject: [PATCH] os/bluestore: KernelDevice::read() does the EIO mapping now.

Fixes: http://tracker.ceph.com/issues/36455
Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
(cherry picked from commit a1e0ece7f987c7a563b25ec0d02fc6f8445ef54e)
---
 src/os/bluestore/KernelDevice.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/os/bluestore/KernelDevice.cc b/src/os/bluestore/KernelDevice.cc
index 00290aed87fe..4d7db11210d3 100644
--- a/src/os/bluestore/KernelDevice.cc
+++ b/src/os/bluestore/KernelDevice.cc
@@ -815,7 +815,11 @@ int KernelDevice::read(uint64_t off, uint64_t len, bufferlist *pbl,
   int r = ::pread(buffered ? fd_buffered : fd_direct,
 		  p.c_str(), len, off);
   if (r < 0) {
-    r = -errno;
+    if (ioc->allow_eio && is_expected_ioerr(r)) {
+      r = -EIO;
+    } else {
+      r = -errno;
+    }
     goto out;
   }
   ceph_assert((uint64_t)r == len);
-- 
2.47.3