Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index e61cc41..c1771e7 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -107,7 +107,7 @@
 	xfs_bstime_t		*bstime,
 	compat_xfs_bstime_t	__user *bstime32)
 {
-	compat_time_t		sec32;	/* tv_sec differs on 64 vs. 32 */
+	old_time32_t		sec32;	/* tv_sec differs on 64 vs. 32 */
 
 	if (get_user(sec32,		&bstime32->tv_sec)	||
 	    get_user(bstime->tv_nsec,	&bstime32->tv_nsec))
@@ -352,56 +352,24 @@
 STATIC int
 xfs_compat_attrlist_by_handle(
 	struct file		*parfilp,
-	void			__user *arg)
+	compat_xfs_fsop_attrlist_handlereq_t __user *p)
 {
-	int			error;
-	attrlist_cursor_kern_t	*cursor;
-	compat_xfs_fsop_attrlist_handlereq_t __user *p = arg;
 	compat_xfs_fsop_attrlist_handlereq_t al_hreq;
 	struct dentry		*dentry;
-	char			*kbuf;
+	int			error;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
-	if (copy_from_user(&al_hreq, arg,
-			   sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
+	if (copy_from_user(&al_hreq, p, sizeof(al_hreq)))
 		return -EFAULT;
-	if (al_hreq.buflen < sizeof(struct attrlist) ||
-	    al_hreq.buflen > XFS_XATTR_LIST_MAX)
-		return -EINVAL;
-
-	/*
-	 * Reject flags, only allow namespaces.
-	 */
-	if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
-		return -EINVAL;
 
 	dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	error = -ENOMEM;
-	kbuf = kmem_zalloc_large(al_hreq.buflen, 0);
-	if (!kbuf)
-		goto out_dput;
-
-	cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
-	error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen,
-					al_hreq.flags, cursor);
-	if (error)
-		goto out_kfree;
-
-	if (copy_to_user(&p->pos, cursor, sizeof(attrlist_cursor_kern_t))) {
-		error = -EFAULT;
-		goto out_kfree;
-	}
-
-	if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
-		error = -EFAULT;
-
-out_kfree:
-	kmem_free(kbuf);
-out_dput:
+	error = xfs_ioc_attr_list(XFS_I(d_inode(dentry)),
+			compat_ptr(al_hreq.buffer), al_hreq.buflen,
+			al_hreq.flags, &p->pos);
 	dput(dentry);
 	return error;
 }
@@ -416,7 +384,6 @@
 	compat_xfs_fsop_attrmulti_handlereq_t	am_hreq;
 	struct dentry				*dentry;
 	unsigned int				i, size;
-	unsigned char				*attr_name;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
@@ -443,103 +410,24 @@
 		goto out_dput;
 	}
 
-	error = -ENOMEM;
-	attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
-	if (!attr_name)
-		goto out_kfree_ops;
-
 	error = 0;
 	for (i = 0; i < am_hreq.opcount; i++) {
-		ops[i].am_flags &= ~ATTR_KERNEL_FLAGS;
-
-		ops[i].am_error = strncpy_from_user((char *)attr_name,
+		ops[i].am_error = xfs_ioc_attrmulti_one(parfilp,
+				d_inode(dentry), ops[i].am_opcode,
 				compat_ptr(ops[i].am_attrname),
-				MAXNAMELEN);
-		if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
-			error = -ERANGE;
-		if (ops[i].am_error < 0)
-			break;
-
-		switch (ops[i].am_opcode) {
-		case ATTR_OP_GET:
-			ops[i].am_error = xfs_attrmulti_attr_get(
-					d_inode(dentry), attr_name,
-					compat_ptr(ops[i].am_attrvalue),
-					&ops[i].am_length, ops[i].am_flags);
-			break;
-		case ATTR_OP_SET:
-			ops[i].am_error = mnt_want_write_file(parfilp);
-			if (ops[i].am_error)
-				break;
-			ops[i].am_error = xfs_attrmulti_attr_set(
-					d_inode(dentry), attr_name,
-					compat_ptr(ops[i].am_attrvalue),
-					ops[i].am_length, ops[i].am_flags);
-			mnt_drop_write_file(parfilp);
-			break;
-		case ATTR_OP_REMOVE:
-			ops[i].am_error = mnt_want_write_file(parfilp);
-			if (ops[i].am_error)
-				break;
-			ops[i].am_error = xfs_attrmulti_attr_remove(
-					d_inode(dentry), attr_name,
-					ops[i].am_flags);
-			mnt_drop_write_file(parfilp);
-			break;
-		default:
-			ops[i].am_error = -EINVAL;
-		}
+				compat_ptr(ops[i].am_attrvalue),
+				&ops[i].am_length, ops[i].am_flags);
 	}
 
 	if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 		error = -EFAULT;
 
-	kfree(attr_name);
- out_kfree_ops:
 	kfree(ops);
  out_dput:
 	dput(dentry);
 	return error;
 }
 
-STATIC int
-xfs_compat_fssetdm_by_handle(
-	struct file		*parfilp,
-	void			__user *arg)
-{
-	int			error;
-	struct fsdmidata	fsd;
-	compat_xfs_fsop_setdm_handlereq_t dmhreq;
-	struct dentry		*dentry;
-
-	if (!capable(CAP_MKNOD))
-		return -EPERM;
-	if (copy_from_user(&dmhreq, arg,
-			   sizeof(compat_xfs_fsop_setdm_handlereq_t)))
-		return -EFAULT;
-
-	dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
-	if (IS_ERR(dentry))
-		return PTR_ERR(dentry);
-
-	if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
-		error = -EPERM;
-		goto out;
-	}
-
-	if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
-		error = -EFAULT;
-		goto out;
-	}
-
-	error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
-				 fsd.fsd_dmstate);
-
-out:
-	dput(dentry);
-	return error;
-}
-
 long
 xfs_file_compat_ioctl(
 	struct file		*filp,
@@ -559,18 +447,13 @@
 	case XFS_IOC_ALLOCSP_32:
 	case XFS_IOC_FREESP_32:
 	case XFS_IOC_ALLOCSP64_32:
-	case XFS_IOC_FREESP64_32:
-	case XFS_IOC_RESVSP_32:
-	case XFS_IOC_UNRESVSP_32:
-	case XFS_IOC_RESVSP64_32:
-	case XFS_IOC_UNRESVSP64_32:
-	case XFS_IOC_ZERO_RANGE_32: {
+	case XFS_IOC_FREESP64_32: {
 		struct xfs_flock64	bf;
 
 		if (xfs_compat_flock64_copyin(&bf, arg))
 			return -EFAULT;
 		cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
-		return xfs_ioc_space(filp, cmd, &bf);
+		return xfs_ioc_space(filp, &bf);
 	}
 	case XFS_IOC_FSGEOMETRY_V1_32:
 		return xfs_compat_ioc_fsgeometry_v1(mp, arg);
@@ -653,8 +536,6 @@
 		return xfs_compat_attrlist_by_handle(filp, arg);
 	case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 		return xfs_compat_attrmulti_by_handle(filp, arg);
-	case XFS_IOC_FSSETDM_BY_HANDLE_32:
-		return xfs_compat_fssetdm_by_handle(filp, arg);
 	default:
 		/* try the native version */
 		return xfs_file_ioctl(filp, cmd, (unsigned long)arg);