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| author | Dan Smith <danms@us.ibm.com> | 2009-03-26 15:24:40 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-03-26 15:24:25 +0100 |
| commit | eaf1b6fbca8d9be87bef2eafaa3f40bffe26ce04 (patch) | |
| tree | 13376d104cff8d398be925d060d2f89b760948e5 /arch/s390 | |
| parent | 1fbc9f46a024535d95c3d5f136901decd86b109e (diff) | |
| download | lwn-eaf1b6fbca8d9be87bef2eafaa3f40bffe26ce04.tar.gz lwn-eaf1b6fbca8d9be87bef2eafaa3f40bffe26ce04.zip | |
[S390] Expose a constant for the number of words representing the CRs
We need to use this value in the checkpoint/restart code and would like to
have a constant instead of a magic '3'.
Cc: linux-s390@vger.kernel.org
Signed-off-by: Dan Smith <danms@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/ptrace.h | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/compat_ptrace.h | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 8920025c3c02..f1b051630c50 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -172,6 +172,8 @@ #define NUM_CRS 16 #define NUM_ACRS 16 +#define NUM_CR_WORDS 3 + #define FPR_SIZE 8 #define FPC_SIZE 4 #define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */ @@ -334,7 +336,7 @@ struct pt_regs */ typedef struct { - unsigned long cr[3]; + unsigned long cr[NUM_CR_WORDS]; } per_cr_words; #define PER_EM_MASK 0xE8000000UL diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h index a2be3a978d5c..123dd660d7fb 100644 --- a/arch/s390/kernel/compat_ptrace.h +++ b/arch/s390/kernel/compat_ptrace.h @@ -1,10 +1,11 @@ #ifndef _PTRACE32_H #define _PTRACE32_H +#include <asm/ptrace.h> /* needed for NUM_CR_WORDS */ #include "compat_linux.h" /* needed for psw_compat_t */ typedef struct { - __u32 cr[3]; + __u32 cr[NUM_CR_WORDS]; } per_cr_words32; typedef struct { |