Commit 378ca2d2 authored Mar 26, 2024 by Sumanth Korikkar Committed by Vasily Gorbik Apr 03, 2024

s390/entry: align system call table on 8 bytes



Align system call table on 8 bytes. With sys_call_table entry size
of 8 bytes that eliminates the possibility of a system call pointer
crossing cache line boundary.

Cc: stable@kernel.org
Suggested-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

parent e9f3af02

arch/s390/kernel/entry.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -635,6 +635,7 @@ SYM_DATA_START_LOCAL(daton_psw)
		SYM_DATA_END(daton_psw)

		.section .rodata, "a"
		.balign 8
		#define SYSCALL(esame,emu) .quad __s390x_ ## esame
		SYM_DATA_START(sys_call_table)
		#include "asm/syscall_table.h"