From: Sage Weil <sage@redhat.com>
Date: Fri, 3 Jun 2016 21:21:58 +0000 (-0400)
Subject: os/bluestore: fix _do_alloc_write compress condition
X-Git-Tag: v11.0.0~160^2~13
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=cfc688d01eb1fd6928ad7d8a744f611b882b2d02;p=ceph.git

os/bluestore: fix _do_alloc_write compress condition

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index b2fd443c483c..ddc787cf7d42 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -5921,11 +5921,12 @@ int BlueStore::_do_alloc_write(
     size_t csum_order = wctx->csum_order;
     bufferlist compressed_bl;
     CompressorRef c;
-    if (b_off == 0 &&
-	wctx->compress &&
+    if (wctx->compress &&
 	b->length > min_alloc_size &&
 	(c = compressor) != nullptr) {
       // compress
+      assert(b_off == 0);
+      assert(b->length == l->length());
       bluestore_compression_header_t chdr;
       chdr.type = c->get_type();
       // FIXME: memory alignment here is bad