Commit ac1ee161 authored by Sheng Yong's avatar Sheng Yong Committed by Jaegeuk Kim
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f2fs: add f2fs_ioc_get_compress_blocks 



This patch adds f2fs_ioc_get_compress_blocks() to provide a common
f2fs_get_compress_blocks().

Signed-off-by: default avatarSheng Yong <shengyong@oppo.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent dde38c03

fs/f2fs/file.c

+17 −6
Original line number Diff line number Diff line
@@ -3377,18 +3377,29 @@ 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);

}
@@ -4240,7 +4251,7 @@ 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: