diff options
| author | Heiko Carstens | 2009-09-22 22:58:49 +0200 |
|---|---|---|
| committer | Martin Schwidefsky | 2009-09-22 22:58:45 +0200 |
| commit | 3fd26a7793fb21b88ccf1e238670b2a508fcf835 (patch) | |
| tree | 47b6b2068d7c5ee584dde5f90defd55757f002bb /arch | |
| parent | 07805ac81c81634623042408ffea6bbad3160bfa (diff) | |
[S390] smp: introduce LC_ORDER and simplify lowcore handling
Removes a couple of simple code duplications. But before I have to do
this again, just simplify it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/lowcore.h | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/smp.c | 14 |
2 files changed, 10 insertions, 10 deletions
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 6bc9426a6fbf..8c5570366a0e 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -189,6 +189,12 @@ union save_area { #define SAVE_AREA_BASE SAVE_AREA_BASE_S390X #endif +#ifndef __s390x__ +#define LC_ORDER 0 +#else +#define LC_ORDER 1 +#endif + struct _lowcore { #ifndef __s390x__ diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 56c16876b919..6f14734abe72 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -475,10 +475,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu) { unsigned long async_stack, panic_stack; struct _lowcore *lowcore; - int lc_order; - lc_order = sizeof(long) == 8 ? 1 : 0; - lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order); + lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER); if (!lowcore) return -ENOMEM; async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER); @@ -509,16 +507,14 @@ static int __cpuinit smp_alloc_lowcore(int cpu) out: free_page(panic_stack); free_pages(async_stack, ASYNC_ORDER); - free_pages((unsigned long) lowcore, lc_order); + free_pages((unsigned long) lowcore, LC_ORDER); return -ENOMEM; } static void smp_free_lowcore(int cpu) { struct _lowcore *lowcore; - int lc_order; - lc_order = sizeof(long) == 8 ? 1 : 0; lowcore = lowcore_ptr[cpu]; #ifndef CONFIG_64BIT if (MACHINE_HAS_IEEE) @@ -528,7 +524,7 @@ static void smp_free_lowcore(int cpu) #endif free_page(lowcore->panic_stack - PAGE_SIZE); free_pages(lowcore->async_stack - ASYNC_SIZE, ASYNC_ORDER); - free_pages((unsigned long) lowcore, lc_order); + free_pages((unsigned long) lowcore, LC_ORDER); lowcore_ptr[cpu] = NULL; } @@ -664,7 +660,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) unsigned long async_stack, panic_stack; struct _lowcore *lowcore; unsigned int cpu; - int lc_order; smp_detect_cpus(); @@ -674,8 +669,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) print_cpu_info(); /* Reallocate current lowcore, but keep its contents. */ - lc_order = sizeof(long) == 8 ? 1 : 0; - lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order); + lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER); panic_stack = __get_free_page(GFP_KERNEL); async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER); BUG_ON(!lowcore || !panic_stack || !async_stack); |