librbd: remove unnecessary md_lock usage

Signed-off-by: Josh Durgin <jdurgin@redhat.com>

diff --git a/src/librbd/internal.cc b/src/librbd/internal.cc
index f5046ecb8c8d281f9c2333db0507a2dd0dcd20fc..2492bd53995dd8babce0e4dd9b345e16ba263c41 100644 (file)
--- a/src/librbd/internal.cc
+++ b/src/librbd/internal.cc
@@ -1680,7 +1680,6 @@ reprotect_and_return_err:
 
     uint64_t original_size;
     {
-      RWLock::RLocker l(ictx->md_lock);
       ictx->snap_lock.get_read();
       original_size = ictx->size;
       ictx->snap_lock.put_read();