From: Yuezhang Mo Yuezhang.Mo@sony.com
commit 39c1ce8eafc0ff64fb9e28536ccc7df6a8e2999d upstream.
inode->i_blocks is not real number of blocks, but 512 byte ones.
Fixes: 98d917047e8b ("exfat: add file operations") Cc: stable@vger.kernel.org # v5.7+ Reported-by: Wang Yugui wangyugui@e16-tech.com Tested-by: Wang Yugui wangyugui@e16-tech.com Signed-off-by: Yuezhang Mo Yuezhang.Mo@sony.com Reviewed-by: Andy Wu Andy.Wu@sony.com Signed-off-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/exfat/file.c | 3 +-- fs/exfat/inode.c | 6 ++---- fs/exfat/namei.c | 2 +- fs/exfat/super.c | 3 +-- 4 files changed, 5 insertions(+), 9 deletions(-)
--- a/fs/exfat/file.c +++ b/fs/exfat/file.c @@ -211,8 +211,7 @@ void exfat_truncate(struct inode *inode, if (err) goto write_size;
- inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> - inode->i_blkbits; + inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> 9; write_size: aligned_size = i_size_read(inode); if (aligned_size & (blocksize - 1)) { --- a/fs/exfat/inode.c +++ b/fs/exfat/inode.c @@ -221,8 +221,7 @@ static int exfat_map_cluster(struct inod num_clusters += num_to_be_allocated; *clu = new_clu.dir;
- inode->i_blocks += - num_to_be_allocated << sbi->sect_per_clus_bits; + inode->i_blocks += EXFAT_CLU_TO_B(num_to_be_allocated, sbi) >> 9;
/* * Move *clu pointer along FAT chains (hole care) because the @@ -582,8 +581,7 @@ static int exfat_fill_inode(struct inode
exfat_save_attr(inode, info->attr);
- inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> - inode->i_blkbits; + inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> 9; inode->i_mtime = info->mtime; inode->i_ctime = info->mtime; ei->i_crtime = info->crtime; --- a/fs/exfat/namei.c +++ b/fs/exfat/namei.c @@ -387,7 +387,7 @@ static int exfat_find_empty_entry(struct ei->i_size_ondisk += sbi->cluster_size; ei->i_size_aligned += sbi->cluster_size; ei->flags = p_dir->flags; - inode->i_blocks += 1 << sbi->sect_per_clus_bits; + inode->i_blocks += sbi->cluster_size >> 9; }
return dentry; --- a/fs/exfat/super.c +++ b/fs/exfat/super.c @@ -373,8 +373,7 @@ static int exfat_read_root(struct inode inode->i_op = &exfat_dir_inode_operations; inode->i_fop = &exfat_dir_operations;
- inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> - inode->i_blkbits; + inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> 9; ei->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff; ei->i_size_aligned = i_size_read(inode); ei->i_size_ondisk = i_size_read(inode);