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Signed-off-by: Sheng Yong Reviewed-by: Chao Yu --- fs/f2fs/file.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 23c68ee946e58..f8aa842b5d233 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3376,18 +3376,29 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg) return err; } -static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg) +static int f2fs_get_compress_blocks(struct inode *inode, __u64 *blocks) { - struct inode *inode = file_inode(filp); - __u64 blocks; - if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) return -EOPNOTSUPP; if (!f2fs_compressed_file(inode)) return -EINVAL; - blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks); + *blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks); + + return 0; +} + +static int f2fs_ioc_get_compress_blocks(struct file *filp, unsigned long arg) +{ + struct inode *inode = file_inode(filp); + __u64 blocks; + int ret; + + ret = f2fs_get_compress_blocks(inode, &blocks); + if (ret < 0) + return ret; + return put_user(blocks, (u64 __user *)arg); } @@ -4239,7 +4250,7 @@ static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) case FS_IOC_SETFSLABEL: return f2fs_ioc_setfslabel(filp, arg); case F2FS_IOC_GET_COMPRESS_BLOCKS: - return f2fs_get_compress_blocks(filp, arg); + return f2fs_ioc_get_compress_blocks(filp, arg); case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: return f2fs_release_compress_blocks(filp, arg); case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: