xfs: compat_ioctl: use compat_ptr() (4529e6d7) · Commits · 戴 / test

For 31-bit s390 user space, we have to pass pointer arguments through compat_ptr() in the compat_ioctl handler. Signed-off-by:

fs/xfs/xfs_ioctl32.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -547,7 +547,7 @@ xfs_file_compat_ioctl(
		struct inode *inode = file_inode(filp);
		struct xfs_inode *ip = XFS_I(inode);
		struct xfs_mount *mp = ip->i_mount;
		void __user arg = (void __user )p;
		void __user *arg = compat_ptr(p);
		int error;

		trace_xfs_file_compat_ioctl(ip);
		@@ -655,6 +655,6 @@ xfs_file_compat_ioctl(
		return xfs_compat_fssetdm_by_handle(filp, arg);
		default:
		/* try the native version */
		return xfs_file_ioctl(filp, cmd, p);
		return xfs_file_ioctl(filp, cmd, (unsigned long)arg);
		}
		}