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| author | Arnd Bergmann <arnd@arndb.de> | 2011-10-17 13:22:50 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-17 13:22:50 +0200 |
| commit | 8eb41582d2106eccc7717047d1184481f5a1b3a6 (patch) | |
| tree | 12257bbe39b5c8ae6918198fde682ed0aacd8e00 /arch/x86/xen | |
| parent | Merge branch 'samsung/board' into next/board (diff) | |
| parent | ep93xx: add support Vision EP9307 SoM (diff) | |
| download | linux-8eb41582d2106eccc7717047d1184481f5a1b3a6.tar.xz linux-8eb41582d2106eccc7717047d1184481f5a1b3a6.zip | |
Merge branch 'ep93xx/board' into next/board
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/mmu.c | 6 | ||||
| -rw-r--r-- | arch/x86/xen/setup.c | 10 | ||||
| -rw-r--r-- | arch/x86/xen/smp.c | 1 | ||||
| -rw-r--r-- | arch/x86/xen/time.c | 5 |
4 files changed, 11 insertions, 11 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 20a614275064..3dd53f997b11 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1721,10 +1721,8 @@ void __init xen_setup_machphys_mapping(void) machine_to_phys_nr = MACH2PHYS_NR_ENTRIES; } #ifdef CONFIG_X86_32 - if ((machine_to_phys_mapping + machine_to_phys_nr) - < machine_to_phys_mapping) - machine_to_phys_nr = (unsigned long *)NULL - - machine_to_phys_mapping; + WARN_ON((machine_to_phys_mapping + (machine_to_phys_nr - 1)) + < machine_to_phys_mapping); #endif } diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index c3b8d440873c..46d6d21dbdbe 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -306,10 +306,12 @@ char * __init xen_memory_setup(void) sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); extra_limit = xen_get_max_pages(); - if (extra_limit >= max_pfn) - extra_pages = extra_limit - max_pfn; - else - extra_pages = 0; + if (max_pfn + extra_pages > extra_limit) { + if (extra_limit > max_pfn) + extra_pages = extra_limit - max_pfn; + else + extra_pages = 0; + } extra_pages += xen_return_unused_memory(xen_start_info->nr_pages, &e820); diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index d4fc6d454f8d..041d4fe9dfe4 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -532,7 +532,6 @@ static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus) WARN_ON(xen_smp_intr_init(0)); xen_init_lock_cpu(0); - xen_init_spinlocks(); } static int __cpuinit xen_hvm_cpu_up(unsigned int cpu) diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index 5158c505bef9..163b4679556e 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -168,9 +168,10 @@ cycle_t xen_clocksource_read(void) struct pvclock_vcpu_time_info *src; cycle_t ret; - src = &get_cpu_var(xen_vcpu)->time; + preempt_disable_notrace(); + src = &__get_cpu_var(xen_vcpu)->time; ret = pvclock_clocksource_read(src); - put_cpu_var(xen_vcpu); + preempt_enable_notrace(); return ret; } |