x86/platform/uv: Set section block size for hubless architectures

Commit

  bbbd2b51 ("x86/platform/UV: Use new set memory block size function")

added a call to set the block size value that is needed by the kernel
to set the boundaries in the section list. This was done for UV Hubbed
systems but missed in the UV Hubless setup. Fix that mistake by adding
that same set call for hubless systems, which support the same NVRAMs
and Intel BIOS, thus the same problem occurs.

 [ bp: Massage commit message. ]

Fixes: bbbd2b51 ("x86/platform/UV: Use new set memory block size function")
Signed-off-by: NMike Travis <mike.travis@hpe.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Reviewed-by: NSteve Wahl <steve.wahl@hpe.com>
Reviewed-by: NRuss Anderson <rja@hpe.com>
Link: https://lkml.kernel.org/r/20210305162853.299892-1-mike.travis@hpe.com

arch/x86/kernel/apic/x2apic_uv_x.c

@@ -1671,6 +1671,9 @@ static __init int uv_system_init_hubless(void)
 	if (rc < 0)
 		return rc;
 
+	/* Set section block size for current node memory */
+	set_block_size();
+
 	/* Create user access node */
 	if (rc >= 0)
 		uv_setup_proc_files(1);