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exfat: fix inode->i_blocks for non-512 byte sector size device 

commit 39c1ce8eaf upstream.

inode->i_blocks is not real number of blocks, but 512 byte ones.

Fixes: 98d917047e ("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>
This commit is contained in:
Yuezhang Mo 2023-01-04 14:37:47 +08:00 committed by Greg Kroah-Hartman
parent ea0f96fa69
commit ec03f6a9eb
4 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/exfat/file.c
View File

@ -209,8 +209,7 @@ 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)) {

6
fs/exfat/inode.c
View File

@ -220,8 +220,7 @@ static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
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
@ -576,8 +575,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info)
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;

2
fs/exfat/namei.c
View File

@ -396,7 +396,7 @@ static int exfat_find_empty_entry(struct inode *inode,
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;

3
fs/exfat/super.c
View File

@ -373,8 +373,7 @@ static int exfat_read_root(struct inode *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);