From: Igor Fedotov <ifedotov@suse.com>
Date: Thu, 17 May 2018 15:05:37 +0000 (+0300)
Subject: os/bluestore: fix signed/unsigned mismatch warning during building
X-Git-Tag: v14.0.0~65^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F22064%2Fhead;p=ceph.git

os/bluestore: fix signed/unsigned mismatch warning during building

Signed-off-by: Igor Fedotov <ifedotov@suse.com>
---

diff --git a/src/os/bluestore/BitMapAllocator.cc b/src/os/bluestore/BitMapAllocator.cc
index f9601939f537..1857879bffd7 100644
--- a/src/os/bluestore/BitMapAllocator.cc
+++ b/src/os/bluestore/BitMapAllocator.cc
@@ -113,7 +113,7 @@ int64_t BitMapAllocator::allocate(
   auto res = allocate_dis(want_size, alloc_unit / m_block_size,
                       max_alloc_size, hint / m_block_size, extents);
 
-  if (res < want_size) {
+  if (res > 0 && res < static_cast<int64_t>(want_size)) {
     auto unused = want_size - res;
     int nblks = unused / m_block_size;
     assert(!(unused % m_block_size));