[Ocfs2-tools-devel] [PATCH 2/5] Fix: Resize check block_count > UINT32_MAX

[Goldwyn Rodrigues]

The code to check resize while crossing 16TB boundaries is
already present. However, there is a bug in bit manipulation
which allowed the check to pass.

However, this needs addition checks for block64 journal options.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn at suse.de>
Signed-off-by: Michal Srb <msrb at suse.com>
---
 tunefs.ocfs2/op_resize_volume.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/tunefs.ocfs2/op_resize_volume.c b/tunefs.ocfs2/op_resize_volume.c
index b16542f..c2f8ebd 100644
--- a/tunefs.ocfs2/op_resize_volume.c
+++ b/tunefs.ocfs2/op_resize_volume.c
@@ -552,8 +552,7 @@ static errcode_t check_new_size(ocfs2_filesys *fs,
uint64_t new_size,
 		}
 		try_clusters = device_clusters;
 	}
-
-	try_blocks = try_clusters << b_to_c_bits;
+	try_blocks = (uint64_t)try_clusters << b_to_c_bits;

 	/* Now we're guaranteed that try_clusters is within range */

-- 
1.7.7