f2fs: introduce F2FS_IOC_GET_COMPRESS_BLOCKS (439dfb10) · Commits · 戴 / test

fs/f2fs/f2fs.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -426,6 +426,7 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal,
		#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
		#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
		#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
		#define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64)

		#define F2FS_IOC_GET_VOLUME_NAME FS_IOC_GETFSLABEL
		#define F2FS_IOC_SET_VOLUME_NAME FS_IOC_SETFSLABEL

+18 −0

Original line number	Diff line number	Diff line
		@@ -3398,6 +3398,21 @@ out:
		return err;
		}

		static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)
		{
		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 = F2FS_I(inode)->i_compr_blocks;
		return put_user(blocks, (u64 __user *)arg);
		}

		long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		{
		if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
		@@ -3476,6 +3491,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		return f2fs_get_volume_name(filp, arg);
		case F2FS_IOC_SET_VOLUME_NAME:
		return f2fs_set_volume_name(filp, arg);
		case F2FS_IOC_GET_COMPRESS_BLOCKS:
		return f2fs_get_compress_blocks(filp, arg);
		default:
		return -ENOTTY;
		}
		@@ -3633,6 +3650,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
		case FS_IOC_MEASURE_VERITY:
		case F2FS_IOC_GET_VOLUME_NAME:
		case F2FS_IOC_SET_VOLUME_NAME:
		case F2FS_IOC_GET_COMPRESS_BLOCKS:
		break;
		default:
		return -ENOIOCTLCMD;