unimore/kernel-hacking-2024-linux-steffo
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ext4: Convert to host order before using the values.

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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>
This commit is contained in:
Aneesh Kumar K.V 2008-11-04 09:11:26 -05:00 committed by Theodore Ts'o
parent ae2d9fb18e
commit d94e99a64c
1 changed files with 2 additions and 3 deletions
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5
fs/ext4/super.c
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@ -1458,9 +1458,8 @@ 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) {