From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 26 Jun 2013 18:47:46 +0000 (-1000)
Subject: Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph... 
X-Git-Url: https://git.stricted.de/?p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git;a=commitdiff_plain;h=78750f1908869c3bfcbf2a1f1f00f078f2948271;hp=1e876e3b1a9df25bb04682b0d48aaa7e8ae1fc82

Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull Ceph fix from Sage Weil:
 "This fixes another problem with using v2 images on 3.10 due to the
  order in which fields are read from the image header.

  Hopefully this is the last one"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: fetch object order before using it
---

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 49394e3f31bc..247bf3099731 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4243,6 +4243,10 @@ static int rbd_dev_v2_header_info(struct rbd_device *rbd_dev)
 
 	down_write(&rbd_dev->header_rwsem);
 
+	ret = rbd_dev_v2_image_size(rbd_dev);
+	if (ret)
+		goto out;
+
 	if (first_time) {
 		ret = rbd_dev_v2_header_onetime(rbd_dev);
 		if (ret)
@@ -4276,10 +4280,6 @@ static int rbd_dev_v2_header_info(struct rbd_device *rbd_dev)
 					"is EXPERIMENTAL!");
 	}
 
-	ret = rbd_dev_v2_image_size(rbd_dev);
-	if (ret)
-		goto out;
-
 	if (rbd_dev->spec->snap_id == CEPH_NOSNAP)
 		if (rbd_dev->mapping.size != rbd_dev->header.image_size)
 			rbd_dev->mapping.size = rbd_dev->header.image_size;