diff options
Diffstat (limited to 'fs/ext4/ext4_write.c')
| -rw-r--r-- | fs/ext4/ext4_write.c | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c index 2c123e3..d710a86 100644 --- a/fs/ext4/ext4_write.c +++ b/fs/ext4/ext4_write.c @@ -38,14 +38,30 @@ static inline void ext4fs_sb_free_blocks_inc(struct ext2_sblock *sb) sb->free_blocks = cpu_to_le32(le32_to_cpu(sb->free_blocks) + 1); } -static inline void ext4fs_bg_free_inodes_inc(struct ext2_block_group *bg) +static inline void ext4fs_bg_free_inodes_inc + (struct ext2_block_group *bg, const struct ext_filesystem *fs) { - bg->free_inodes = cpu_to_le16(le16_to_cpu(bg->free_inodes) + 1); + uint32_t free_inodes = le16_to_cpu(bg->free_inodes); + if (fs->gdsize == 64) + free_inodes += le16_to_cpu(bg->free_inodes_high) << 16; + free_inodes++; + + bg->free_inodes = cpu_to_le16(free_inodes & 0xffff); + if (fs->gdsize == 64) + bg->free_inodes_high = cpu_to_le16(free_inodes >> 16); } -static inline void ext4fs_bg_free_blocks_inc(struct ext2_block_group *bg) +static inline void ext4fs_bg_free_blocks_inc + (struct ext2_block_group *bg, const struct ext_filesystem *fs) { - bg->free_blocks = cpu_to_le16(le16_to_cpu(bg->free_blocks) + 1); + uint32_t free_blocks = le16_to_cpu(bg->free_blocks); + if (fs->gdsize == 64) + free_blocks += le16_to_cpu(bg->free_blocks_high) << 16; + free_blocks++; + + bg->free_blocks = cpu_to_le16(free_blocks & 0xffff); + if (fs->gdsize == 64) + bg->free_blocks_high = cpu_to_le16(free_blocks >> 16); } static void ext4fs_update(void) @@ -146,7 +162,7 @@ static void delete_single_indirect_block(struct ext2_inode *inode) ext4fs_reset_block_bmap(blknr, fs->blk_bmaps[bg_idx], bg_idx); /* get block group descriptor table */ bgd = ext4fs_get_group_descriptor(fs, bg_idx); - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -210,7 +226,7 @@ static void delete_double_indirect_block(struct ext2_inode *inode) ext4fs_reset_block_bmap(le32_to_cpu(*di_buffer), fs->blk_bmaps[bg_idx], bg_idx); di_buffer++; - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -241,7 +257,7 @@ static void delete_double_indirect_block(struct ext2_inode *inode) /* get block group descriptor table */ bgd = ext4fs_get_group_descriptor(fs, bg_idx); ext4fs_reset_block_bmap(blknr, fs->blk_bmaps[bg_idx], bg_idx); - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -322,7 +338,7 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) tip_buffer++; /* get block group descriptor table */ bgd = ext4fs_get_group_descriptor(fs, bg_idx); - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -362,7 +378,7 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) tigp_buffer++; /* get block group descriptor table */ bgd = ext4fs_get_group_descriptor(fs, bg_idx); - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -394,7 +410,7 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) ext4fs_reset_block_bmap(blknr, fs->blk_bmaps[bg_idx], bg_idx); /* get block group descriptor table */ bgd = ext4fs_get_group_descriptor(fs, bg_idx); - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -481,7 +497,7 @@ static int ext4fs_delete_file(int inodeno) /* get block group descriptor table */ bgd = ext4fs_get_group_descriptor(fs, bg_idx); - ext4fs_bg_free_blocks_inc(bgd); + ext4fs_bg_free_blocks_inc(bgd, fs); ext4fs_sb_free_blocks_inc(fs->sb); /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { @@ -536,7 +552,7 @@ static int ext4fs_delete_file(int inodeno) /* update the respective inode bitmaps */ inodeno++; ext4fs_reset_inode_bmap(inodeno, fs->inode_bmaps[ibmap_idx], ibmap_idx); - ext4fs_bg_free_inodes_inc(bgd); + ext4fs_bg_free_inodes_inc(bgd, fs); ext4fs_sb_free_inodes_inc(fs->sb); /* journal backup */ memset(journal_buffer, '\0', fs->blksz); |