From: Yuezhang Mo <Yuezhang.Mo@xxxxxxxx>
commit 39c1ce8eafc0ff64fb9e28536ccc7df6a8e2999d upstream.
inode->i_blocks is not real number of blocks, but 512 byte ones.
Fixes: 98d917047e8b ("exfat: add file operations")
Cc: stable@xxxxxxxxxxxxxxx # v5.7+
Reported-by: Wang Yugui <wangyugui@xxxxxxxxxxxx>
Tested-by: Wang Yugui <wangyugui@xxxxxxxxxxxx>
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@xxxxxxxx>
Reviewed-by: Andy Wu <Andy.Wu@xxxxxxxx>
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -250,8 +250,7 @@ void exfat_truncate(struct inode *inode,
else
mark_inode_dirty(inode);
- 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
@@ -242,8 +242,7 @@ static int exfat_map_cluster(struct inod
return err;
} /* end of if != DIR_DELETED */
- 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
@@ -600,8 +599,7 @@ 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
@@ -398,7 +398,7 @@ 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
@@ -364,8 +364,7 @@ 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);
