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Diffstat (limited to 'fs/ext4/bitmap.c')
-rw-r--r--fs/ext4/bitmap.c37
1 files changed, 19 insertions, 18 deletions
diff --git a/fs/ext4/bitmap.c b/fs/ext4/bitmap.c
index f63e028c638c..87760fabdd2e 100644
--- a/fs/ext4/bitmap.c
+++ b/fs/ext4/bitmap.c
@@ -16,19 +16,21 @@ unsigned int ext4_count_free(char *bitmap, unsigned int numchars)
return numchars * BITS_PER_BYTE - memweight(bitmap, numchars);
}
-int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
+int ext4_inode_bitmap_csum_verify(struct super_block *sb,
struct ext4_group_desc *gdp,
- struct buffer_head *bh, int sz)
+ struct buffer_head *bh)
{
__u32 hi;
__u32 provided, calculated;
struct ext4_sb_info *sbi = EXT4_SB(sb);
+ int sz;
- if (!ext4_has_metadata_csum(sb))
+ if (!ext4_has_feature_metadata_csum(sb))
return 1;
+ sz = EXT4_INODES_PER_GROUP(sb) >> 3;
provided = le16_to_cpu(gdp->bg_inode_bitmap_csum_lo);
- calculated = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ calculated = ext4_chksum(sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
if (sbi->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END) {
hi = le16_to_cpu(gdp->bg_inode_bitmap_csum_hi);
provided |= (hi << 16);
@@ -38,23 +40,25 @@ int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
return provided == calculated;
}
-void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
+void ext4_inode_bitmap_csum_set(struct super_block *sb,
struct ext4_group_desc *gdp,
- struct buffer_head *bh, int sz)
+ struct buffer_head *bh)
{
__u32 csum;
struct ext4_sb_info *sbi = EXT4_SB(sb);
+ int sz;
- if (!ext4_has_metadata_csum(sb))
+ if (!ext4_has_feature_metadata_csum(sb))
return;
- csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ sz = EXT4_INODES_PER_GROUP(sb) >> 3;
+ csum = ext4_chksum(sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
gdp->bg_inode_bitmap_csum_lo = cpu_to_le16(csum & 0xFFFF);
if (sbi->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END)
gdp->bg_inode_bitmap_csum_hi = cpu_to_le16(csum >> 16);
}
-int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
+int ext4_block_bitmap_csum_verify(struct super_block *sb,
struct ext4_group_desc *gdp,
struct buffer_head *bh)
{
@@ -63,24 +67,21 @@ int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
struct ext4_sb_info *sbi = EXT4_SB(sb);
int sz = EXT4_CLUSTERS_PER_GROUP(sb) / 8;
- if (!ext4_has_metadata_csum(sb))
+ if (!ext4_has_feature_metadata_csum(sb))
return 1;
provided = le16_to_cpu(gdp->bg_block_bitmap_csum_lo);
- calculated = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ calculated = ext4_chksum(sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
if (sbi->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_END) {
hi = le16_to_cpu(gdp->bg_block_bitmap_csum_hi);
provided |= (hi << 16);
} else
calculated &= 0xFFFF;
- if (provided == calculated)
- return 1;
-
- return 0;
+ return provided == calculated;
}
-void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
+void ext4_block_bitmap_csum_set(struct super_block *sb,
struct ext4_group_desc *gdp,
struct buffer_head *bh)
{
@@ -88,10 +89,10 @@ void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
__u32 csum;
struct ext4_sb_info *sbi = EXT4_SB(sb);
- if (!ext4_has_metadata_csum(sb))
+ if (!ext4_has_feature_metadata_csum(sb))
return;
- csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
+ csum = ext4_chksum(sbi->s_csum_seed, (__u8 *)bh->b_data, sz);
gdp->bg_block_bitmap_csum_lo = cpu_to_le16(csum & 0xFFFF);
if (sbi->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_END)
gdp->bg_block_bitmap_csum_hi = cpu_to_le16(csum >> 16);