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[FOR-STABLE,16/20] ext4: Convert to host order before using the values.

Message ID 1226851540-8032-17-git-send-email-tytso@mit.edu
State Not Applicable, archived
Headers show

Commit Message

Theodore Ts'o Nov. 16, 2008, 4:05 p.m. UTC 
From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

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>
(cherry picked from commit d94e99a64c3beece22dbfb2b335771a59184eb0a)
---
 fs/ext4/super.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
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Patch

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) {