ext4: Convert bg_inode_bitmap and bg_inode_table
Convert bg_inode_bitmap and bg_inode_table to bg_inode_bitmap_lo and bg_inode_table_lo. This helps in finding BUGs due to direct partial access of these split 64 bit values Also fix one direct partial access Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Родитель
3a14589cce
Коммит
5272f83727
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@ -115,7 +115,7 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
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/* Set bits for block and inode bitmaps, and inode table */
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ext4_set_bit(ext4_block_bitmap(sb, gdp) - start, bh->b_data);
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ext4_set_bit(ext4_inode_bitmap(sb, gdp) - start, bh->b_data);
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for (bit = le32_to_cpu(gdp->bg_inode_table) - start,
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for (bit = (ext4_inode_table(sb, gdp) - start),
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bit_max = bit + sbi->s_itb_per_group; bit < bit_max; bit++)
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ext4_set_bit(bit, bh->b_data);
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@ -78,17 +78,17 @@ ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
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ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
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struct ext4_group_desc *bg)
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{
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return le32_to_cpu(bg->bg_inode_bitmap) |
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return le32_to_cpu(bg->bg_inode_bitmap_lo) |
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(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
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(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0);
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(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0);
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}
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ext4_fsblk_t ext4_inode_table(struct super_block *sb,
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struct ext4_group_desc *bg)
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{
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return le32_to_cpu(bg->bg_inode_table) |
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return le32_to_cpu(bg->bg_inode_table_lo) |
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(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
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(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0);
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(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0);
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}
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void ext4_block_bitmap_set(struct super_block *sb,
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@ -102,7 +102,7 @@ void ext4_block_bitmap_set(struct super_block *sb,
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void ext4_inode_bitmap_set(struct super_block *sb,
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struct ext4_group_desc *bg, ext4_fsblk_t blk)
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{
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bg->bg_inode_bitmap = cpu_to_le32((u32)blk);
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bg->bg_inode_bitmap_lo = cpu_to_le32((u32)blk);
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if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT)
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bg->bg_inode_bitmap_hi = cpu_to_le32(blk >> 32);
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}
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@ -110,7 +110,7 @@ void ext4_inode_bitmap_set(struct super_block *sb,
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void ext4_inode_table_set(struct super_block *sb,
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struct ext4_group_desc *bg, ext4_fsblk_t blk)
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{
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bg->bg_inode_table = cpu_to_le32((u32)blk);
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bg->bg_inode_table_lo = cpu_to_le32((u32)blk);
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if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT)
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bg->bg_inode_table_hi = cpu_to_le32(blk >> 32);
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}
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@ -106,8 +106,8 @@
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struct ext4_group_desc
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{
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__le32 bg_block_bitmap_lo; /* Blocks bitmap block */
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__le32 bg_inode_bitmap; /* Inodes bitmap block */
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__le32 bg_inode_table; /* Inodes table block */
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__le32 bg_inode_bitmap_lo; /* Inodes bitmap block */
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__le32 bg_inode_table_lo; /* Inodes table block */
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__le16 bg_free_blocks_count; /* Free blocks count */
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__le16 bg_free_inodes_count; /* Free inodes count */
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__le16 bg_used_dirs_count; /* Directories count */
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