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s390/uaccess: always run the kernel in home space

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Simplify the uaccess code by removing the user_mode=home option.
The kernel will now always run in the home space mode.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2013-09-24 09:14:56 +02:00
parent 7d7c7b24e4
commit e258d719ff
21 changed files with 51 additions and 459 deletions
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4
arch/s390/kernel/ipl.c
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@@ -2051,12 +2051,12 @@ void s390_reset_system(void (*func)(void *), void *data)
__ctl_clear_bit(0,28);
/* Set new machine check handler */
S390_lowcore.mcck_new_psw.mask = psw_kernel_bits | PSW_MASK_DAT;
S390_lowcore.mcck_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT;
S390_lowcore.mcck_new_psw.addr =
PSW_ADDR_AMODE | (unsigned long) s390_base_mcck_handler;
/* Set new program check handler */
S390_lowcore.program_new_psw.mask = psw_kernel_bits | PSW_MASK_DAT;
S390_lowcore.program_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT;
S390_lowcore.program_new_psw.addr =
PSW_ADDR_AMODE | (unsigned long) s390_base_pgm_handler;