From: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Use le16_to_cpu to read the s_reserved_gdt_blocks values
from super block.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
(cherry picked from commit d94e99a64c3beece22dbfb2b335771a59184eb0a)
---
fs/ext4/super.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e1255cc..b6fdc2b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1506,9 +1506,8 @@ static int ext4_fill_flex_info(struct super_block *sb)
/* 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) {
--
1.6.0.4.8.g36f27.dirty
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