Merge pull request #11935: hammer: osd: crash on EIO during deep-scru…

…bbing Reviewed-by: Nathan Cutler <ncutler@suse.com>
ceph · Nov 20, 2016 · f289f48 · f289f48
2 parents 6609bbb + fc46591
commit f289f48
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/src/osd/ECBackend.cc b/src/osd/ECBackend.cc
@@ -1778,6 +1778,9 @@ void ECBackend::be_deep_scrub(
   if (stride % sinfo.get_chunk_size())
     stride += sinfo.get_chunk_size() - (stride % sinfo.get_chunk_size());
   uint64_t pos = 0;
+
+  uint32_t fadvise_flags = CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL | CEPH_OSD_OP_FLAG_FADVISE_DONTNEED;
+
   while (true) {
     bufferlist bl;
     handle.reset_tp_timeout();
@@ -1787,7 +1790,7 @@ void ECBackend::be_deep_scrub(
 	poid, ghobject_t::NO_GEN, get_parent()->whoami_shard().shard),
       pos,
       stride, bl,
-      true);
+      fadvise_flags, true);
     if (r < 0)
       break;
     if (bl.length() % sinfo.get_chunk_size()) {

diff --git a/src/osd/ReplicatedBackend.cc b/src/osd/ReplicatedBackend.cc
@@ -750,13 +750,16 @@ void ReplicatedBackend::be_deep_scrub(
   bufferlist bl, hdrbl;
   int r;
   __u64 pos = 0;
+
+  uint32_t fadvise_flags = CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL | CEPH_OSD_OP_FLAG_FADVISE_DONTNEED;
+
   while ( (r = store->read(
 	     coll,
 	     ghobject_t(
 	       poid, ghobject_t::NO_GEN, get_parent()->whoami_shard().shard),
 	     pos,
 	     cct->_conf->osd_deep_scrub_stride, bl,
-	     true)) > 0) {
+	     fadvise_flags, true)) > 0) {
     handle.reset_tp_timeout();
     h << bl;
     pos += bl.length();