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Commit 55e67872 authored by Tao Ma's avatar Tao Ma Committed by Joel Becker
Browse files

ocfs2: Add FITRIM ioctl. 



Add the corresponding ioctl function for FITRIM.

Signed-off-by: default avatarTao Ma <boyu.mt@taobao.com>
Signed-off-by: default avatarJoel Becker <jlbec@evilplan.org>
parent e80de36d

fs/ocfs2/ioctl.c

+24 −0
Original line number Diff line number Diff line
@@ -542,6 +542,29 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
			return -EFAULT;



		return ocfs2_info_handle(inode, &info, 0);

	case FITRIM:

	{

		struct super_block *sb = inode->i_sb;

		struct fstrim_range range;

		int ret = 0;



		if (!capable(CAP_SYS_ADMIN))

			return -EPERM;



		if (copy_from_user(&range, (struct fstrim_range *)arg,

		    sizeof(range)))

			return -EFAULT;



		ret = ocfs2_trim_fs(sb, &range);

		if (ret < 0)

			return ret;



		if (copy_to_user((struct fstrim_range *)arg, &range,

		    sizeof(range)))

			return -EFAULT;



		return 0;

	}

	default:

		return -ENOTTY;

	}
@@ -569,6 +592,7 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) 
	case OCFS2_IOC_GROUP_EXTEND:

	case OCFS2_IOC_GROUP_ADD:

	case OCFS2_IOC_GROUP_ADD64:

	case FITRIM:

		break;

	case OCFS2_IOC_REFLINK:

		if (copy_from_user(&args, (struct reflink_arguments *)arg,