From: Christoph Hellwig <hch@lst.de>
Date: Sat, 5 Aug 2017 08:59:14 +0000 (+0200)
Subject: pnfs/blocklayout: require 64-bit sector_t
X-Git-Tag: v4.9.44~8
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a68978bb949a9be075b75a045250ce89d7550604;p=platform%2Fkernel%2Flinux-amlogic.git

pnfs/blocklayout: require 64-bit sector_t

commit 8a9d6e964d318533ba3d2901ce153ba317c99a89 upstream.

The blocklayout code does not compile cleanly for a 32-bit sector_t,
and also has no reliable checks for devices sizes, which makes it
unsafe to use with a kernel that doesn't support large block devices.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5c83746a0cf2 ("pnfs/blocklayout: in-kernel GETDEVICEINFO XDR parsing")
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index f31fd0dd92c6..b1daeafbea92 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -121,6 +121,7 @@ config PNFS_FILE_LAYOUT
 config PNFS_BLOCK
 	tristate
 	depends on NFS_V4_1 && BLK_DEV_DM
+	depends on 64BIT || LBDAF
 	default NFS_V4
 
 config PNFS_OBJLAYOUT