From cfc688d01eb1fd6928ad7d8a744f611b882b2d02 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Fri, 3 Jun 2016 17:21:58 -0400
Subject: [PATCH] os/bluestore: fix _do_alloc_write compress condition

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/bluestore/BlueStore.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index b2fd443c483cf..ddc787cf7d423 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
-- 
2.39.5