[PATCH] mon: OSDMonitor: add "osd pool get <pool> erasure_code_profile" command

["Ma, Jianpeng" <jianpeng.ma@xxxxxxxxx>]

Enable us to obtain the erasure-code-profile for a given erasure-pool.

Signed-off-by: Ma Jianpeng <jianpeng.ma@xxxxxxxxx>
---
 src/mon/MonCommands.h |  2 +-
 src/mon/OSDMonitor.cc | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/mon/MonCommands.h b/src/mon/MonCommands.h
index f429e0f..627546b 100644
--- a/src/mon/MonCommands.h
+++ b/src/mon/MonCommands.h
@@ -571,7 +571,7 @@ COMMAND("osd pool rename " \
        "rename <srcpool> to <destpool>", "osd", "rw", "cli,rest")
 COMMAND("osd pool get " \
        "name=pool,type=CephPoolname " \
-       "name=var,type=CephChoices,strings=size|min_size|crash_replay_interval|pg_num|pgp_num|crush_ruleset|hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|auid|target_max_objects|target_max_bytes|cache_target_dirty_ratio|cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age", \
+       "name=var,type=CephChoices,strings=size|min_size|crash_replay_interval|pg_num|pgp_num|crush_ruleset|hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|auid|target_max_objects|target_max_bytes|cache_target_dirty_ratio|cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|erasure_code_profile", \
        "get pool parameter <var>", "osd", "r", "cli,rest")
 COMMAND("osd pool set " \
        "name=pool,type=CephPoolname " \
diff --git a/src/mon/OSDMonitor.cc b/src/mon/OSDMonitor.cc
index c60d744..d267245 100644
--- a/src/mon/OSDMonitor.cc
+++ b/src/mon/OSDMonitor.cc
@@ -2483,6 +2483,13 @@ bool OSDMonitor::preprocess_command(MMonCommand *m)
       goto reply;
     }

+    if (!p->is_erasure() && var == "erasure_code_profile") {
+      ss << "pool '" << poolstr
+         << "' is not a erasure pool: variable not applicable";
+      r = -EACCES;
+      goto reply;
+    }
+
     if (f) {
       f->open_object_section("pool");
       f->dump_string("pool", poolstr);
@@ -2536,6 +2543,8 @@ bool OSDMonitor::preprocess_command(MMonCommand *m)
         f->dump_unsigned("cache_min_flush_age", p->cache_min_flush_age);
       } else if (var == "cache_min_evict_age") {
         f->dump_unsigned("cache_min_evict_age", p->cache_min_evict_age);
+      } else if (var == "erasure_code_profile") {
+       f->dump_string("erasure_code_profile", p->erasure_code_profile);
       }

       f->close_section();
@@ -2583,6 +2592,8 @@ bool OSDMonitor::preprocess_command(MMonCommand *m)
         ss << "cache_min_flush_age: " << p->cache_min_flush_age;
       } else if (var == "cache_min_evict_age") {
         ss << "cache_min_evict_age: " << p->cache_min_evict_age;
+      } else if (var == "erasure_code_profile") {
+       ss << "erasure_code_profile: " << p->erasure_code_profile;
       }

       rdata.append(ss);
--
1.9.1

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