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s390: pass struct pt_regs instead of registers to syscalls

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Instead of fetching all registers from struct pt_regs and passing
them to the syscall wrappers, let the system call wrappers only
fetch the values really required.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Sven Schnelle
2021-01-18 09:35:38 +01:00
committed by Vasily Gorbik
parent 39589ada1c
commit 3a790cc1c9
3 changed files with 75 additions and 51 deletions
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4
arch/s390/include/asm/processor.h
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@@ -40,9 +40,7 @@
#include <asm/fpu/internal.h>
#include <asm/irqflags.h>
typedef long (*sys_call_ptr_t)(unsigned long, unsigned long,
unsigned long, unsigned long,
unsigned long, unsigned long);
typedef long (*sys_call_ptr_t)(struct pt_regs *regs);
static inline void set_cpu_flag(int flag)
{