[patch 094/104] ext4: Convert to host order before using the values.

Greg KH
2008-12-03T20:27:26Z

[-- Attachment #1: ext4-convert-to-host-order-before-using-the-values.patch --]
[-- Type: text/plain, Size: 1168 bytes --]

2.6.27-stable review patch. If anyone has any objections, please let us know.

------------------
From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

(cherry picked from commit d94e99a64c3beece22dbfb2b335771a59184eb0a)

Use le16_to_cpu to read the s_reserved_gdt_blocks values
from super block.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
fs/ext4/super.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1506,9 +1506,8 @@ static int ext4_fill_flex_info(struct su

/* We allocate both existing and potentially added groups */
flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) +
- ((sbi->s_es->s_reserved_gdt_blocks +1 ) <<
- EXT4_DESC_PER_BLOCK_BITS(sb))) /
- groups_per_flex;
+ ((le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) + 1) <<
+ EXT4_DESC_PER_BLOCK_BITS(sb))) / groups_per_flex;
sbi->s_flex_groups = kzalloc(flex_group_count *
sizeof(struct flex_groups), GFP_KERNEL);
if (sbi->s_flex_groups == NULL) {