From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn --- arch/ia64/kvm/kvm-ia64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 26e0e089bfe..73c5c2b05f6 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -23,8 +23,8 @@ #include #include #include -#include #include +#include #include #include #include -- cgit v1.2.3-70-g09d2 From 87bf6e7de1134f48681fd2ce4b7c1ec45458cb6d Mon Sep 17 00:00:00 2001 From: Takuya Yoshikawa Date: Mon, 12 Apr 2010 19:35:35 +0900 Subject: KVM: fix the handling of dirty bitmaps to avoid overflows Int is not long enough to store the size of a dirty bitmap. This patch fixes this problem with the introduction of a wrapper function to calculate the sizes of dirty bitmaps. Note: in mark_page_dirty(), we have to consider the fact that __set_bit() takes the offset as int, not long. Signed-off-by: Takuya Yoshikawa Signed-off-by: Marcelo Tosatti --- arch/ia64/kvm/kvm-ia64.c | 9 +++++---- arch/powerpc/kvm/book3s.c | 5 +++-- arch/x86/kvm/x86.c | 5 +++-- include/linux/kvm_host.h | 5 +++++ virt/kvm/kvm_main.c | 13 ++++++++----- 5 files changed, 24 insertions(+), 13 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 73c5c2b05f6..7f3c0a2e60c 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1802,7 +1802,8 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm, { struct kvm_memory_slot *memslot; int r, i; - long n, base; + long base; + unsigned long n; unsigned long *dirty_bitmap = (unsigned long *)(kvm->arch.vm_base + offsetof(struct kvm_vm_data, kvm_mem_dirty_log)); @@ -1815,7 +1816,7 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm, if (!memslot->dirty_bitmap) goto out; - n = ALIGN(memslot->npages, BITS_PER_LONG) / 8; + n = kvm_dirty_bitmap_bytes(memslot); base = memslot->base_gfn / BITS_PER_LONG; for (i = 0; i < n/sizeof(long); ++i) { @@ -1831,7 +1832,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) { int r; - int n; + unsigned long n; struct kvm_memory_slot *memslot; int is_dirty = 0; @@ -1850,7 +1851,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, if (is_dirty) { kvm_flush_remote_tlbs(kvm); memslot = &kvm->memslots->memslots[log->slot]; - n = ALIGN(memslot->npages, BITS_PER_LONG) / 8; + n = kvm_dirty_bitmap_bytes(memslot); memset(memslot->dirty_bitmap, 0, n); } r = 0; diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 25da07fd9f7..604af29b71e 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1004,7 +1004,8 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_vcpu *vcpu; ulong ga, ga_end; int is_dirty = 0; - int r, n; + int r; + unsigned long n; mutex_lock(&kvm->slots_lock); @@ -1022,7 +1023,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, kvm_for_each_vcpu(n, vcpu, kvm) kvmppc_mmu_pte_pflush(vcpu, ga, ga_end); - n = ALIGN(memslot->npages, BITS_PER_LONG) / 8; + n = kvm_dirty_bitmap_bytes(memslot); memset(memslot->dirty_bitmap, 0, n); } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9ad3d064c78..45aa90f8cc5 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2612,8 +2612,9 @@ static int kvm_vm_ioctl_reinject(struct kvm *kvm, int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) { - int r, n, i; + int r, i; struct kvm_memory_slot *memslot; + unsigned long n; unsigned long is_dirty = 0; unsigned long *dirty_bitmap = NULL; @@ -2628,7 +2629,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, if (!memslot->dirty_bitmap) goto out; - n = ALIGN(memslot->npages, BITS_PER_LONG) / 8; + n = kvm_dirty_bitmap_bytes(memslot); r = -ENOMEM; dirty_bitmap = vmalloc(n); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index a3fd0f91d94..9ad825e1c79 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -119,6 +119,11 @@ struct kvm_memory_slot { int user_alloc; }; +static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) +{ + return ALIGN(memslot->npages, BITS_PER_LONG) / 8; +} + struct kvm_kernel_irq_routing_entry { u32 gsi; u32 type; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 5a0cd194dce..364daacafb5 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -648,7 +648,7 @@ skip_lpage: /* Allocate page dirty bitmap if needed */ if ((new.flags & KVM_MEM_LOG_DIRTY_PAGES) && !new.dirty_bitmap) { - unsigned dirty_bytes = ALIGN(npages, BITS_PER_LONG) / 8; + unsigned long dirty_bytes = kvm_dirty_bitmap_bytes(&new); new.dirty_bitmap = vmalloc(dirty_bytes); if (!new.dirty_bitmap) @@ -768,7 +768,7 @@ int kvm_get_dirty_log(struct kvm *kvm, { struct kvm_memory_slot *memslot; int r, i; - int n; + unsigned long n; unsigned long any = 0; r = -EINVAL; @@ -780,7 +780,7 @@ int kvm_get_dirty_log(struct kvm *kvm, if (!memslot->dirty_bitmap) goto out; - n = ALIGN(memslot->npages, BITS_PER_LONG) / 8; + n = kvm_dirty_bitmap_bytes(memslot); for (i = 0; !any && i < n/sizeof(long); ++i) any = memslot->dirty_bitmap[i]; @@ -1186,10 +1186,13 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn) memslot = gfn_to_memslot_unaliased(kvm, gfn); if (memslot && memslot->dirty_bitmap) { unsigned long rel_gfn = gfn - memslot->base_gfn; + unsigned long *p = memslot->dirty_bitmap + + rel_gfn / BITS_PER_LONG; + int offset = rel_gfn % BITS_PER_LONG; /* avoid RMW */ - if (!generic_test_le_bit(rel_gfn, memslot->dirty_bitmap)) - generic___set_le_bit(rel_gfn, memslot->dirty_bitmap); + if (!generic_test_le_bit(offset, p)) + generic___set_le_bit(offset, p); } } -- cgit v1.2.3-70-g09d2 From 5c0d0920a270b9f2aa20c1cecb162703da32e766 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 12 Mar 2010 08:45:39 +0800 Subject: KVM: ia64: fix the error code of ioctl KVM_IA64_VCPU_GET_STACK failure The ioctl KVM_IA64_VCPU_GET_STACK does not set the error code if copy_to_user() fail, and 0 will be return, we should use -EFAULT instead of 0 in this case, so this patch fixed it. Signed-off-by: Wei Yongjun Signed-off-by: Marcelo Tosatti --- arch/ia64/kvm/kvm-ia64.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 7f3c0a2e60c..38d51302f5b 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1535,8 +1535,10 @@ long kvm_arch_vcpu_ioctl(struct file *filp, goto out; if (copy_to_user(user_stack, stack, - sizeof(struct kvm_ia64_vcpu_stack))) + sizeof(struct kvm_ia64_vcpu_stack))) { + r = -EFAULT; goto out; + } break; } -- cgit v1.2.3-70-g09d2 From 600f1ec3761671307935a583c46f17fff0fa9b72 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 12 Mar 2010 10:11:15 +0800 Subject: KVM: ia64: fix the error of ioctl KVM_IRQ_LINE if no irq chip If no irq chip in kernel, ioctl KVM_IRQ_LINE will return -EFAULT. But I see in other place such as KVM_[GET|SET]IRQCHIP, -ENXIO is return. So this patch used -ENXIO instead of -EFAULT. Signed-off-by: Wei Yongjun Signed-off-by: Marcelo Tosatti --- arch/ia64/kvm/kvm-ia64.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 38d51302f5b..d7bac1f75af 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -979,11 +979,13 @@ long kvm_arch_vm_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&irq_event, argp, sizeof irq_event)) goto out; + r = -ENXIO; if (irqchip_in_kernel(kvm)) { __s32 status; status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID, irq_event.irq, irq_event.level); if (ioctl == KVM_IRQ_LINE_STATUS) { + r = -EFAULT; irq_event.status = status; if (copy_to_user(argp, &irq_event, sizeof irq_event)) -- cgit v1.2.3-70-g09d2 From 90d83dc3d49f5101addae962ccc1b4aff66b68d8 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Mon, 19 Apr 2010 17:41:23 +0800 Subject: KVM: use the correct RCU API for PROVE_RCU=y The RCU/SRCU API have already changed for proving RCU usage. I got the following dmesg when PROVE_RCU=y because we used incorrect API. This patch coverts rcu_deference() to srcu_dereference() or family API. =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- arch/x86/kvm/mmu.c:3020 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by qemu-system-x86/8550: #0: (&kvm->slots_lock){+.+.+.}, at: [] kvm_set_memory_region+0x29/0x50 [kvm] #1: (&(&kvm->mmu_lock)->rlock){+.+...}, at: [] kvm_arch_commit_memory_region+0xa6/0xe2 [kvm] stack backtrace: Pid: 8550, comm: qemu-system-x86 Not tainted 2.6.34-rc4-tip-01028-g939eab1 #27 Call Trace: [] lockdep_rcu_dereference+0xaa/0xb3 [] kvm_mmu_calculate_mmu_pages+0x44/0x7d [kvm] [] kvm_arch_commit_memory_region+0xb7/0xe2 [kvm] [] __kvm_set_memory_region+0x636/0x6e2 [kvm] [] kvm_set_memory_region+0x37/0x50 [kvm] [] vmx_set_tss_addr+0x46/0x5a [kvm_intel] [] kvm_arch_vm_ioctl+0x17a/0xcf8 [kvm] [] ? unlock_page+0x27/0x2c [] ? __do_fault+0x3a9/0x3e1 [] kvm_vm_ioctl+0x364/0x38d [kvm] [] ? up_read+0x23/0x3d [] vfs_ioctl+0x32/0xa6 [] do_vfs_ioctl+0x495/0x4db [] ? fget_light+0xc2/0x241 [] ? do_sys_open+0x104/0x116 [] ? retint_swapgs+0xe/0x13 [] sys_ioctl+0x47/0x6a [] system_call_fastpath+0x16/0x1b Signed-off-by: Lai Jiangshan Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm-ia64.c | 2 +- arch/s390/kvm/kvm-s390.h | 2 +- arch/x86/kvm/mmu.c | 7 ++++--- arch/x86/kvm/vmx.c | 2 +- arch/x86/kvm/x86.c | 4 ++-- arch/x86/kvm/x86.h | 7 +++++++ include/linux/kvm_host.h | 7 +++++++ virt/kvm/iommu.c | 4 ++-- virt/kvm/kvm_main.c | 13 ++++++++----- 9 files changed, 33 insertions(+), 15 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index d7bac1f75af..d5f4e916120 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1381,7 +1381,7 @@ static void kvm_release_vm_pages(struct kvm *kvm) int i, j; unsigned long base_gfn; - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; i++) { memslot = &slots->memslots[i]; base_gfn = memslot->base_gfn; diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 60f09ab3672..cfa9d177745 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -72,7 +72,7 @@ static inline void kvm_s390_vcpu_set_mem(struct kvm_vcpu *vcpu) struct kvm_memslots *memslots; idx = srcu_read_lock(&vcpu->kvm->srcu); - memslots = rcu_dereference(vcpu->kvm->memslots); + memslots = kvm_memslots(vcpu->kvm); mem = &memslots->memslots[0]; diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 7a17db1cdcd..0682a393ad9 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -787,7 +787,7 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva, int retval = 0; struct kvm_memslots *slots; - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; i++) { struct kvm_memory_slot *memslot = &slots->memslots[i]; @@ -3016,7 +3016,8 @@ unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm) unsigned int nr_pages = 0; struct kvm_memslots *slots; - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); + for (i = 0; i < slots->nmemslots; i++) nr_pages += slots->memslots[i].npages; @@ -3292,7 +3293,7 @@ static int count_rmaps(struct kvm_vcpu *vcpu) int i, j, k, idx; idx = srcu_read_lock(&kvm->srcu); - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); for (i = 0; i < KVM_MEMORY_SLOTS; ++i) { struct kvm_memory_slot *m = &slots->memslots[i]; struct kvm_rmap_desc *d; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 0b896ac7e4b..d0a10b5612e 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1558,7 +1558,7 @@ static gva_t rmode_tss_base(struct kvm *kvm) struct kvm_memslots *slots; gfn_t base_gfn; - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); base_gfn = kvm->memslots->memslots[0].base_gfn + kvm->memslots->memslots[0].npages - 3; return base_gfn << PAGE_SHIFT; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 58a96e6a234..638248c9699 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2497,7 +2497,7 @@ gfn_t unalias_gfn_instantiation(struct kvm *kvm, gfn_t gfn) struct kvm_mem_alias *alias; struct kvm_mem_aliases *aliases; - aliases = rcu_dereference(kvm->arch.aliases); + aliases = kvm_aliases(kvm); for (i = 0; i < aliases->naliases; ++i) { alias = &aliases->aliases[i]; @@ -2516,7 +2516,7 @@ gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) struct kvm_mem_alias *alias; struct kvm_mem_aliases *aliases; - aliases = rcu_dereference(kvm->arch.aliases); + aliases = kvm_aliases(kvm); for (i = 0; i < aliases->naliases; ++i) { alias = &aliases->aliases[i]; diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index b7a404722d2..f4b54458285 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -65,6 +65,13 @@ static inline int is_paging(struct kvm_vcpu *vcpu) return kvm_read_cr0_bits(vcpu, X86_CR0_PG); } +static inline struct kvm_mem_aliases *kvm_aliases(struct kvm *kvm) +{ + return rcu_dereference_check(kvm->arch.aliases, + srcu_read_lock_held(&kvm->srcu) + || lockdep_is_held(&kvm->slots_lock)); +} + void kvm_before_handle_nmi(struct kvm_vcpu *vcpu); void kvm_after_handle_nmi(struct kvm_vcpu *vcpu); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 55830638aeb..1ed030bad59 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -250,6 +250,13 @@ void kvm_exit(void); void kvm_get_kvm(struct kvm *kvm); void kvm_put_kvm(struct kvm *kvm); +static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) +{ + return rcu_dereference_check(kvm->memslots, + srcu_read_lock_held(&kvm->srcu) + || lockdep_is_held(&kvm->slots_lock)); +} + #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index 80fd3ad3b2d..37ca71ebdba 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -78,7 +78,7 @@ static int kvm_iommu_map_memslots(struct kvm *kvm) int i, r = 0; struct kvm_memslots *slots; - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; i++) { r = kvm_iommu_map_pages(kvm, &slots->memslots[i]); @@ -217,7 +217,7 @@ static int kvm_iommu_unmap_memslots(struct kvm *kvm) int i; struct kvm_memslots *slots; - slots = rcu_dereference(kvm->memslots); + slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; i++) { kvm_iommu_put_pages(kvm, slots->memslots[i].base_gfn, diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index d6351a34b29..4901ec5061b 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -834,7 +834,7 @@ EXPORT_SYMBOL_GPL(kvm_is_error_hva); struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn) { int i; - struct kvm_memslots *slots = rcu_dereference(kvm->memslots); + struct kvm_memslots *slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; ++i) { struct kvm_memory_slot *memslot = &slots->memslots[i]; @@ -856,7 +856,7 @@ struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn) { int i; - struct kvm_memslots *slots = rcu_dereference(kvm->memslots); + struct kvm_memslots *slots = kvm_memslots(kvm); gfn = unalias_gfn_instantiation(kvm, gfn); for (i = 0; i < KVM_MEMORY_SLOTS; ++i) { @@ -900,7 +900,7 @@ out: int memslot_id(struct kvm *kvm, gfn_t gfn) { int i; - struct kvm_memslots *slots = rcu_dereference(kvm->memslots); + struct kvm_memslots *slots = kvm_memslots(kvm); struct kvm_memory_slot *memslot = NULL; gfn = unalias_gfn(kvm, gfn); @@ -1994,7 +1994,9 @@ int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, const void *val) { int i; - struct kvm_io_bus *bus = rcu_dereference(kvm->buses[bus_idx]); + struct kvm_io_bus *bus; + + bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu); for (i = 0; i < bus->dev_count; i++) if (!kvm_iodevice_write(bus->devs[i], addr, len, val)) return 0; @@ -2006,8 +2008,9 @@ int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, void *val) { int i; - struct kvm_io_bus *bus = rcu_dereference(kvm->buses[bus_idx]); + struct kvm_io_bus *bus; + bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu); for (i = 0; i < bus->dev_count; i++) if (!kvm_iodevice_read(bus->devs[i], addr, len, val)) return 0; -- cgit v1.2.3-70-g09d2 From 3499f4d0d1159a21245d6071f8af6a71b86a78bc Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 26 May 2010 17:57:05 +0200 Subject: KVM: ia64: Add missing spin_unlock in kvm_arch_hardware_enable() Add a spin_unlock missing on the error path. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression E1; @@ * spin_lock(E1,...); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * spin_unlock(E1,...); // Signed-off-by: Julia Lawall Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm-ia64.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index d5f4e916120..21b701374f7 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -144,6 +144,7 @@ int kvm_arch_hardware_enable(void *garbage) VP_INIT_ENV : VP_INIT_ENV_INITALIZE, __pa(kvm_vm_buffer), KVM_VM_BUFFER_BASE, &tmp_base); if (status != 0) { + spin_unlock(&vp_lock); printk(KERN_WARNING"kvm: Failed to Enable VT Support!!!!\n"); return -EINVAL; } -- cgit v1.2.3-70-g09d2 From 421f91d21ad6f799dc7b489bb33cc560ccc56f98 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 11 Jun 2010 12:17:00 +0200 Subject: fix typos concerning "initiali[zs]e" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Uwe Kleine-König Signed-off-by: Jiri Kosina --- arch/arm/mach-msm/acpuclock-arm11.c | 4 ++-- arch/arm/mach-u300/gpio.c | 2 +- arch/arm/plat-s3c24xx/clock.c | 2 +- arch/arm/plat-samsung/clock.c | 2 +- arch/h8300/kernel/timer/itu.c | 2 +- arch/h8300/kernel/timer/timer16.c | 2 +- arch/h8300/kernel/timer/timer8.c | 2 +- arch/ia64/kvm/kvm-ia64.c | 6 +++--- arch/ia64/sn/kernel/setup.c | 2 +- arch/sparc/boot/btfixupprep.c | 4 ++-- arch/x86/kernel/apic/apic.c | 2 +- arch/x86/kernel/head32.c | 2 +- drivers/crypto/amcc/crypto4xx_reg_def.h | 2 +- drivers/dma/at_hdmac.c | 2 +- drivers/gpu/drm/savage/savage_bci.c | 2 +- drivers/ide/ide-gd.c | 2 +- drivers/infiniband/hw/ehca/hcp_if.h | 2 +- drivers/input/misc/ad714x.c | 2 +- drivers/media/video/ov511.c | 2 +- drivers/media/video/zoran/zoran.h | 2 +- drivers/media/video/zoran/zr36050.c | 2 +- drivers/media/video/zoran/zr36060.c | 2 +- drivers/message/fusion/mptbase.c | 4 ++-- drivers/mtd/nand/denali.c | 2 +- drivers/net/3c527.c | 4 ++-- drivers/net/appletalk/ipddp.c | 2 +- drivers/net/hp100.c | 2 +- drivers/net/ibm_newemac/core.c | 2 +- drivers/net/ksz884x.c | 2 +- drivers/net/ll_temac_main.c | 2 +- drivers/net/tulip/dmfe.c | 20 ++++++++++---------- drivers/net/wimax/i2400m/control.c | 2 +- drivers/parisc/ccio-dma.c | 4 ++-- drivers/pcmcia/sa11xx_base.c | 2 +- drivers/scsi/advansys.c | 2 +- drivers/scsi/aic94xx/aic94xx_seq.c | 4 ++-- drivers/scsi/bfa/vport.c | 2 +- drivers/scsi/pm8001/pm8001_hwi.c | 2 +- drivers/scsi/qla4xxx/ql4_init.c | 2 +- drivers/serial/sn_console.c | 6 +++--- drivers/staging/comedi/drivers/usbdux.c | 2 +- drivers/staging/octeon/cvmx-cmd-queue.c | 6 +++--- drivers/staging/pohmelfs/inode.c | 2 +- drivers/staging/rt2860/common/cmm_wpa.c | 4 ++-- drivers/staging/rtl8192e/r8190_rtl8256.c | 6 +++--- drivers/usb/serial/kl5kusb105.c | 2 +- drivers/usb/wusbcore/wusbhc.c | 2 +- drivers/uwb/wlp/wss-lc.c | 2 +- drivers/video/carminefb.c | 2 +- drivers/video/tgafb.c | 2 +- fs/befs/linuxvfs.c | 2 +- fs/ecryptfs/crypto.c | 2 +- fs/ext4/extents.c | 2 +- fs/ext4/super.c | 2 +- fs/freevxfs/vxfs_super.c | 2 +- fs/ocfs2/super.c | 2 +- fs/reiserfs/inode.c | 2 +- lib/random32.c | 2 +- net/netfilter/ipvs/ip_vs_lblc.c | 2 +- net/netfilter/ipvs/ip_vs_lblcr.c | 2 +- net/sctp/associola.c | 2 +- net/sctp/protocol.c | 2 +- security/smack/smack_lsm.c | 2 +- sound/pci/trident/trident_main.c | 2 +- sound/soc/fsl/mpc8610_hpcd.c | 2 +- sound/soc/soc-core.c | 2 +- 66 files changed, 90 insertions(+), 90 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/arm/mach-msm/acpuclock-arm11.c b/arch/arm/mach-msm/acpuclock-arm11.c index af5e85b91d0..f060a3959a7 100644 --- a/arch/arm/mach-msm/acpuclock-arm11.c +++ b/arch/arm/mach-msm/acpuclock-arm11.c @@ -98,7 +98,7 @@ struct clkctl_acpu_speed { /* * ACPU speed table. Complete table is shown but certain speeds are commented - * out to optimized speed switching. Initalize loops_per_jiffy to 0. + * out to optimized speed switching. Initialize loops_per_jiffy to 0. * * Table stepping up/down is optimized for 256mhz jumps while staying on the * same PLL. @@ -494,7 +494,7 @@ uint32_t acpuclk_get_switch_time(void) * Clock driver initialization *---------------------------------------------------------------------------*/ -/* Initalize the lpj field in the acpu_freq_tbl. */ +/* Initialize the lpj field in the acpu_freq_tbl. */ static void __init lpj_init(void) { int i; diff --git a/arch/arm/mach-u300/gpio.c b/arch/arm/mach-u300/gpio.c index 5f61fd45a0c..d92790140fe 100644 --- a/arch/arm/mach-u300/gpio.c +++ b/arch/arm/mach-u300/gpio.c @@ -523,7 +523,7 @@ static void gpio_set_initial_values(void) /* * Put all pins that are set to either 'GPIO_OUT' or 'GPIO_NOT_USED' - * to output and 'GPIO_IN' to input for each port. And initalize + * to output and 'GPIO_IN' to input for each port. And initialize * default value on outputs. */ for (i = 0; i < U300_GPIO_NUM_PORTS; i++) { diff --git a/arch/arm/plat-s3c24xx/clock.c b/arch/arm/plat-s3c24xx/clock.c index 8474d05274b..931d26d1a54 100644 --- a/arch/arm/plat-s3c24xx/clock.c +++ b/arch/arm/plat-s3c24xx/clock.c @@ -43,7 +43,7 @@ #include #include -/* initalise all the clocks */ +/* initialise all the clocks */ void __init_or_cpufreq s3c24xx_setup_clocks(unsigned long fclk, unsigned long hclk, diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c index 8bf79f3efdf..90a20512d68 100644 --- a/arch/arm/plat-samsung/clock.c +++ b/arch/arm/plat-samsung/clock.c @@ -391,7 +391,7 @@ void __init s3c_disable_clocks(struct clk *clkp, int nr_clks) (clkp->enable)(clkp, 0); } -/* initalise all the clocks */ +/* initialise all the clocks */ int __init s3c24xx_register_baseclocks(unsigned long xtal) { diff --git a/arch/h8300/kernel/timer/itu.c b/arch/h8300/kernel/timer/itu.c index 4883ba7103a..a2ae5e95213 100644 --- a/arch/h8300/kernel/timer/itu.c +++ b/arch/h8300/kernel/timer/itu.c @@ -73,7 +73,7 @@ void __init h8300_timer_setup(void) setup_irq(ITUIRQ, &itu_irq); - /* initalize timer */ + /* initialize timer */ ctrl_outb(0, TSTR); ctrl_outb(CCLR0 | div, ITUBASE + TCR); ctrl_outb(0x01, ITUBASE + TIER); diff --git a/arch/h8300/kernel/timer/timer16.c b/arch/h8300/kernel/timer/timer16.c index 042dbb53f3f..ae0d3816113 100644 --- a/arch/h8300/kernel/timer/timer16.c +++ b/arch/h8300/kernel/timer/timer16.c @@ -68,7 +68,7 @@ void __init h8300_timer_setup(void) setup_irq(_16IRQ, &timer16_irq); - /* initalize timer */ + /* initialize timer */ ctrl_outb(0, TSTR); ctrl_outb(CCLR0 | div, _16BASE + TCR); ctrl_outw(cnt, _16BASE + GRA); diff --git a/arch/h8300/kernel/timer/timer8.c b/arch/h8300/kernel/timer/timer8.c index 38be0cabef0..3946c0fa837 100644 --- a/arch/h8300/kernel/timer/timer8.c +++ b/arch/h8300/kernel/timer/timer8.c @@ -94,7 +94,7 @@ void __init h8300_timer_setup(void) ctrl_bclr(0, MSTPCRL) #endif - /* initalize timer */ + /* initialize timer */ ctrl_outw(cnt, _8BASE + TCORA); ctrl_outw(0x0000, _8BASE + _8TCSR); ctrl_outw((CMIEA|CCLR_CMA|CKS2) << 8 | div, diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 7f3c0a2e60c..29afd9a252f 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1234,7 +1234,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) p_ctx->cr[2] = (unsigned long)kvm_vmm_info->vmm_ivt; p_ctx->cr[8] = 0x3c; - /*Initilize region register*/ + /*Initialize region register*/ p_ctx->rr[0] = 0x30; p_ctx->rr[1] = 0x30; p_ctx->rr[2] = 0x30; @@ -1243,7 +1243,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) p_ctx->rr[5] = 0x30; p_ctx->rr[7] = 0x30; - /*Initilize branch register 0*/ + /*Initialize branch register 0*/ p_ctx->br[0] = *(unsigned long *)kvm_vmm_info->vmm_entry; vcpu->arch.vmm_rr = kvm->arch.vmm_init_rr; @@ -1702,7 +1702,7 @@ static int kvm_relocate_vmm(struct kvm_vmm_info *vmm_info, BUG_ON(!module); if (!kvm_vmm_base) { - printk("kvm: kvm area hasn't been initilized yet!!\n"); + printk("kvm: kvm area hasn't been initialized yet!!\n"); return -EFAULT; } diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index d00dfc18002..dbc4cbecb5e 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -507,7 +507,7 @@ static void __init sn_init_pdas(char **cmdline_p) cnodeid_t cnode; /* - * Allocate & initalize the nodepda for each node. + * Allocate & initialize the nodepda for each node. */ for_each_online_node(cnode) { nodepdaindr[cnode] = diff --git a/arch/sparc/boot/btfixupprep.c b/arch/sparc/boot/btfixupprep.c index bbf91b9c3d3..b6049110223 100644 --- a/arch/sparc/boot/btfixupprep.c +++ b/arch/sparc/boot/btfixupprep.c @@ -216,7 +216,7 @@ main1: switch (buffer[nbase+3]) { case 'f': if (initval) { - fprintf(stderr, "Cannot use pre-initalized fixups for calls\n%s\n", buffer); + fprintf(stderr, "Cannot use pre-initialized fixups for calls\n%s\n", buffer); exit(1); } if (!strcmp (sect, "__ksymtab")) { @@ -273,7 +273,7 @@ main1: break; case 'i': if (initval) { - fprintf(stderr, "Cannot use pre-initalized fixups for INT\n%s\n", buffer); + fprintf(stderr, "Cannot use pre-initialized fixups for INT\n%s\n", buffer); exit(1); } if (strncmp (buffer + mode+9, "HI22 ", 10) && strncmp (buffer + mode+9, "LO10 ", 10)) { diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index e5a4a1e0161..192cd7ee35c 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -459,7 +459,7 @@ static void lapic_timer_broadcast(const struct cpumask *mask) } /* - * Setup the local APIC timer for this CPU. Copy the initilized values + * Setup the local APIC timer for this CPU. Copy the initialized values * of the boot CPU and register the clock event in the framework. */ static void __cpuinit setup_APIC_timer(void) diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c index b2e24603739..784360c0625 100644 --- a/arch/x86/kernel/head32.c +++ b/arch/x86/kernel/head32.c @@ -20,7 +20,7 @@ static void __init i386_default_early_setup(void) { - /* Initilize 32bit specific setup functions */ + /* Initialize 32bit specific setup functions */ x86_init.resources.probe_roms = probe_roms; x86_init.resources.reserve_resources = i386_reserve_resources; x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc; diff --git a/drivers/crypto/amcc/crypto4xx_reg_def.h b/drivers/crypto/amcc/crypto4xx_reg_def.h index 7d4edb00261..5f5fbc0716f 100644 --- a/drivers/crypto/amcc/crypto4xx_reg_def.h +++ b/drivers/crypto/amcc/crypto4xx_reg_def.h @@ -113,7 +113,7 @@ #define CRYPTO4XX_PRNG_LFSR_H 0x00070034 /** - * Initilize CRYPTO ENGINE registers, and memory bases. + * Initialize CRYPTO ENGINE registers, and memory bases. */ #define PPC4XX_PDR_POLL 0x3ff #define PPC4XX_OUTPUT_THRESHOLD 2 diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 278cf5bceef..308ab320e20 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -69,7 +69,7 @@ static struct at_desc *atc_first_queued(struct at_dma_chan *atchan) } /** - * atc_alloc_descriptor - allocate and return an initilized descriptor + * atc_alloc_descriptor - allocate and return an initialized descriptor * @chan: the channel to allocate descriptors for * @gfp_flags: GFP allocation flags * diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c index 2d0c9ca484c..fa05cda8c98 100644 --- a/drivers/gpu/drm/savage/savage_bci.c +++ b/drivers/gpu/drm/savage/savage_bci.c @@ -552,7 +552,7 @@ int savage_driver_load(struct drm_device *dev, unsigned long chipset) /* - * Initalize mappings. On Savage4 and SavageIX the alignment + * Initialize mappings. On Savage4 and SavageIX the alignment * and size of the aperture is not suitable for automatic MTRR setup * in drm_addmap. Therefore we add them manually before the maps are * initialized, and tear them down on last close. diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c index c32d83996ae..27d9fe08d80 100644 --- a/drivers/ide/ide-gd.c +++ b/drivers/ide/ide-gd.c @@ -92,7 +92,7 @@ static void ide_disk_release(struct device *dev) /* * On HPA drives the capacity needs to be - * reinitilized on resume otherwise the disk + * reinitialized on resume otherwise the disk * can not be used and a hard reset is required */ static void ide_gd_resume(ide_drive_t *drive) diff --git a/drivers/infiniband/hw/ehca/hcp_if.h b/drivers/infiniband/hw/ehca/hcp_if.h index 39c1c3618ec..a46e514c367 100644 --- a/drivers/infiniband/hw/ehca/hcp_if.h +++ b/drivers/infiniband/hw/ehca/hcp_if.h @@ -49,7 +49,7 @@ #include "hipz_hw.h" /* - * hipz_h_alloc_resource_eq allocates EQ resources in HW and FW, initalize + * hipz_h_alloc_resource_eq allocates EQ resources in HW and FW, initialize * resources, create the empty EQPT (ring). */ u64 hipz_h_alloc_resource_eq(const struct ipz_adapter_handle adapter_handle, diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index 0fe27baf5e7..c431d09e401 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -1118,7 +1118,7 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, if (error) goto err_free_mem; - /* initilize and request sw/hw resources */ + /* initialize and request sw/hw resources */ ad714x_hw_init(ad714x); mutex_init(&ad714x->mutex); diff --git a/drivers/media/video/ov511.c b/drivers/media/video/ov511.c index a10912097b7..78a6eb698b0 100644 --- a/drivers/media/video/ov511.c +++ b/drivers/media/video/ov511.c @@ -4808,7 +4808,7 @@ ov7xx0_configure(struct usb_ov511 *ov) return -1; if (init_ov_sensor(ov) >= 0) { - PDEBUG(1, "OV7xx0 sensor initalized (method 1)"); + PDEBUG(1, "OV7xx0 sensor initialized (method 1)"); } else { /* Reset the 76xx */ if (i2c_w(ov, 0x12, 0x80) < 0) diff --git a/drivers/media/video/zoran/zoran.h b/drivers/media/video/zoran/zoran.h index 8997add1248..307e847fe1c 100644 --- a/drivers/media/video/zoran/zoran.h +++ b/drivers/media/video/zoran/zoran.h @@ -391,7 +391,7 @@ struct zoran { struct mutex resource_lock; /* prevent evil stuff */ - u8 initialized; /* flag if zoran has been correctly initalized */ + u8 initialized; /* flag if zoran has been correctly initialized */ int user; /* number of current users */ struct card_info card; struct tvnorm *timing; diff --git a/drivers/media/video/zoran/zr36050.c b/drivers/media/video/zoran/zr36050.c index 639dd87c663..e1985609af4 100644 --- a/drivers/media/video/zoran/zr36050.c +++ b/drivers/media/video/zoran/zr36050.c @@ -236,7 +236,7 @@ zr36050_pushit (struct zr36050 *ptr, Could be variable, but until it's not needed it they are just fixed to save memory. Otherwise expand zr36050 structure with arrays, push the values to - it and initalize from there, as e.g. the linux zr36057/60 driver does it. + it and initialize from there, as e.g. the linux zr36057/60 driver does it. ========================================================================= */ static const char zr36050_dqt[0x86] = { diff --git a/drivers/media/video/zoran/zr36060.c b/drivers/media/video/zoran/zr36060.c index 008746ff774..5e4f57cbf31 100644 --- a/drivers/media/video/zoran/zr36060.c +++ b/drivers/media/video/zoran/zr36060.c @@ -227,7 +227,7 @@ zr36060_pushit (struct zr36060 *ptr, Could be variable, but until it's not needed it they are just fixed to save memory. Otherwise expand zr36060 structure with arrays, push the values to - it and initalize from there, as e.g. the linux zr36057/60 driver does it. + it and initialize from there, as e.g. the linux zr36057/60 driver does it. ========================================================================= */ static const char zr36060_dqt[0x86] = { diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index a6a57011ba6..14d162fb8a2 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1794,7 +1794,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) ioc->sh = NULL; ioc->cached_fw = NULL; - /* Initilize SCSI Config Data structure + /* Initialize SCSI Config Data structure */ memset(&ioc->spi_data, 0, sizeof(SpiCfgData)); @@ -2471,7 +2471,7 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag) if ((ret == 0) && (reason == MPT_HOSTEVENT_IOC_BRINGUP)) { /* - * Initalize link list for inactive raid volumes. + * Initialize link list for inactive raid volumes. */ mutex_init(&ioc->raid_data.inactive_list_mutex); INIT_LIST_HEAD(&ioc->raid_data.inactive_list); diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index ca03428b59c..3dfda9cc677 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1836,7 +1836,7 @@ static struct nand_bbt_descr bbt_mirror_descr = { .pattern = mirror_pattern, }; -/* initalize driver data structures */ +/* initialize driver data structures */ void denali_drv_init(struct denali_nand_info *denali) { denali->idx = 0; diff --git a/drivers/net/3c527.c b/drivers/net/3c527.c index 38395dfa496..70705d1306b 100644 --- a/drivers/net/3c527.c +++ b/drivers/net/3c527.c @@ -729,14 +729,14 @@ static void mc32_halt_transceiver(struct net_device *dev) * mc32_load_rx_ring - load the ring of receive buffers * @dev: 3c527 to build the ring for * - * This initalises the on-card and driver datastructures to + * This initialises the on-card and driver datastructures to * the point where mc32_start_transceiver() can be called. * * The card sets up the receive ring for us. We are required to use the * ring it provides, although the size of the ring is configurable. * * We allocate an sk_buff for each ring entry in turn and - * initalise its house-keeping info. At the same time, we read + * initialise its house-keeping info. At the same time, we read * each 'next' pointer in our rx_ring array. This reduces slow * shared-memory reads and makes it easy to access predecessor * descriptors. diff --git a/drivers/net/appletalk/ipddp.c b/drivers/net/appletalk/ipddp.c index 79636ee3582..0362c8d31a0 100644 --- a/drivers/net/appletalk/ipddp.c +++ b/drivers/net/appletalk/ipddp.c @@ -80,7 +80,7 @@ static struct net_device * __init ipddp_init(void) if (version_printed++ == 0) printk(version); - /* Initalize the device structure. */ + /* Initialize the device structure. */ dev->netdev_ops = &ipddp_netdev_ops; dev->type = ARPHRD_IPDDP; /* IP over DDP tunnel */ diff --git a/drivers/net/hp100.c b/drivers/net/hp100.c index 68e5ac8832a..dfc787fa8b1 100644 --- a/drivers/net/hp100.c +++ b/drivers/net/hp100.c @@ -1071,7 +1071,7 @@ static void hp100_mmuinit(struct net_device *dev) if (lp->mode == 1) hp100_init_pdls(dev); - /* Go to performance page and initalize isr and imr registers */ + /* Go to performance page and initialize isr and imr registers */ hp100_page(PERFORMANCE); hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 2484e9e6c1e..6a45f8f3a0c 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -1044,7 +1044,7 @@ static int emac_change_mtu(struct net_device *ndev, int new_mtu) DBG(dev, "change_mtu(%d)" NL, new_mtu); if (netif_running(ndev)) { - /* Check if we really need to reinitalize RX ring */ + /* Check if we really need to reinitialize RX ring */ if (emac_rx_skb_size(ndev->mtu) != emac_rx_skb_size(new_mtu)) ret = emac_resize_rx_ring(dev, new_mtu); } diff --git a/drivers/net/ksz884x.c b/drivers/net/ksz884x.c index c80ca64277b..c02ce1ab657 100644 --- a/drivers/net/ksz884x.c +++ b/drivers/net/ksz884x.c @@ -6812,7 +6812,7 @@ static int stp; static int fast_aging; /** - * netdev_init - initalize network device. + * netdev_init - initialize network device. * @dev: Network device. * * This function initializes the network device. diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c index b59b24d667f..0ace2a46d31 100644 --- a/drivers/net/ll_temac_main.c +++ b/drivers/net/ll_temac_main.c @@ -449,7 +449,7 @@ static u32 temac_setoptions(struct net_device *ndev, u32 options) return (0); } -/* Initilize temac */ +/* Initialize temac */ static void temac_device_reset(struct net_device *ndev) { struct temac_local *lp = netdev_priv(ndev); diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c index 29e6c63d39f..0bc4f3030a8 100644 --- a/drivers/net/tulip/dmfe.c +++ b/drivers/net/tulip/dmfe.c @@ -589,7 +589,7 @@ static int dmfe_open(struct DEVICE *dev) db->dm910x_chk_mode = 1; /* Enter the check mode */ } - /* Initilize DM910X board */ + /* Initialize DM910X board */ dmfe_init_dm910x(dev); /* Active System Interface */ @@ -606,9 +606,9 @@ static int dmfe_open(struct DEVICE *dev) } -/* Initilize DM910X board +/* Initialize DM910X board * Reset DM910X board - * Initilize TX/Rx descriptor chain structure + * Initialize TX/Rx descriptor chain structure * Send the set-up frame * Enable Tx/Rx machine */ @@ -649,7 +649,7 @@ static void dmfe_init_dm910x(struct DEVICE *dev) if ( !(db->media_mode & DMFE_AUTO) ) db->op_mode = db->media_mode; /* Force Mode */ - /* Initiliaze Transmit/Receive decriptor and CR3/4 */ + /* Initialize Transmit/Receive decriptor and CR3/4 */ dmfe_descriptor_init(db, ioaddr); /* Init CR6 to program DM910x operation */ @@ -1288,7 +1288,7 @@ static void dmfe_timer(unsigned long data) * Stop DM910X board * Free Tx/Rx allocated memory * Reset DM910X board - * Re-initilize DM910X board + * Re-initialize DM910X board */ static void dmfe_dynamic_reset(struct DEVICE *dev) @@ -1316,7 +1316,7 @@ static void dmfe_dynamic_reset(struct DEVICE *dev) netif_carrier_off(dev); db->wait_reset = 0; - /* Re-initilize DM910X board */ + /* Re-initialize DM910X board */ dmfe_init_dm910x(dev); /* Restart upper layer interface */ @@ -1447,7 +1447,7 @@ static void update_cr6(u32 cr6_data, unsigned long ioaddr) /* * Send a setup frame for DM9132 - * This setup frame initilize DM910X address filter mode + * This setup frame initialize DM910X address filter mode */ static void dm9132_id_table(struct DEVICE *dev) @@ -1489,7 +1489,7 @@ static void dm9132_id_table(struct DEVICE *dev) /* * Send a setup frame for DM9102/DM9102A - * This setup frame initilize DM910X address filter mode + * This setup frame initialize DM910X address filter mode */ static void send_filter_frame(struct DEVICE *dev) @@ -2142,7 +2142,7 @@ static int dmfe_resume(struct pci_dev *pci_dev) pci_set_power_state(pci_dev, PCI_D0); pci_restore_state(pci_dev); - /* Re-initilize DM910X board */ + /* Re-initialize DM910X board */ dmfe_init_dm910x(dev); /* Disable WOL */ @@ -2196,7 +2196,7 @@ MODULE_PARM_DESC(SF_mode, "Davicom DM9xxx special function " /* Description: * when user used insmod to add module, system invoked init_module() - * to initilize and register. + * to initialize and register. */ static int __init dmfe_init_module(void) diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index d86e8f31e7f..7f48e040c3b 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -50,7 +50,7 @@ * * ROADMAP * - * i2400m_dev_initalize() Called by i2400m_dev_start() + * i2400m_dev_initialize() Called by i2400m_dev_start() * i2400m_set_init_config() * i2400m_cmd_get_state() * i2400m_dev_shutdown() Called by i2400m_dev_stop() diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index f511e70d454..75a80e46b39 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -1241,10 +1241,10 @@ static struct parisc_driver ccio_driver = { }; /** - * ccio_ioc_init - Initalize the I/O Controller + * ccio_ioc_init - Initialize the I/O Controller * @ioc: The I/O Controller. * - * Initalize the I/O Controller which includes setting up the + * Initialize the I/O Controller which includes setting up the * I/O Page Directory, the resource map, and initalizing the * U2/Uturn chip into virtual mode. */ diff --git a/drivers/pcmcia/sa11xx_base.c b/drivers/pcmcia/sa11xx_base.c index fa28d8911b0..0c62fe31a40 100644 --- a/drivers/pcmcia/sa11xx_base.c +++ b/drivers/pcmcia/sa11xx_base.c @@ -231,7 +231,7 @@ int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, sinfo->nskt = nr; - /* Initiliaze processor specific parameters */ + /* Initialize processor specific parameters */ for (i = 0; i < nr; i++) { skt = &sinfo->skt[i]; diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 7f87979da22..0ec3da6f3e1 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -9717,7 +9717,7 @@ static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) asc_dvc->bug_fix_cntl = 0; asc_dvc->pci_fix_asyn_xfer = 0; asc_dvc->pci_fix_asyn_xfer_always = 0; - /* asc_dvc->init_state initalized in AscInitGetConfig(). */ + /* asc_dvc->init_state initialized in AscInitGetConfig(). */ asc_dvc->sdtr_done = 0; asc_dvc->cur_total_qng = 0; asc_dvc->is_in_int = 0; diff --git a/drivers/scsi/aic94xx/aic94xx_seq.c b/drivers/scsi/aic94xx/aic94xx_seq.c index d01dcc62b39..74374618010 100644 --- a/drivers/scsi/aic94xx/aic94xx_seq.c +++ b/drivers/scsi/aic94xx/aic94xx_seq.c @@ -588,7 +588,7 @@ static void asd_init_cseq_mdp(struct asd_ha_struct *asd_ha) * asd_init_cseq_scratch -- setup and init CSEQ * @asd_ha: pointer to host adapter structure * - * Setup and initialize Central sequencers. Initialiaze the mode + * Setup and initialize Central sequencers. Initialize the mode * independent and dependent scratch page to the default settings. */ static void asd_init_cseq_scratch(struct asd_ha_struct *asd_ha) @@ -782,7 +782,7 @@ static void asd_init_lseq_mdp(struct asd_ha_struct *asd_ha, int lseq) asd_write_reg_word(asd_ha, LmSEQ_OOB_INT_ENABLES(lseq), 0); /* * Set the desired interval between transmissions of the NOTIFY - * (ENABLE SPINUP) primitive. Must be initilized to val - 1. + * (ENABLE SPINUP) primitive. Must be initialized to val - 1. */ asd_write_reg_word(asd_ha, LmSEQ_NOTIFY_TIMER_TIMEOUT(lseq), ASD_NOTIFY_TIMEOUT - 1); diff --git a/drivers/scsi/bfa/vport.c b/drivers/scsi/bfa/vport.c index 27cd619a227..e2720c8a666 100644 --- a/drivers/scsi/bfa/vport.c +++ b/drivers/scsi/bfa/vport.c @@ -789,7 +789,7 @@ bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status) switch (status) { case BFA_STATUS_OK: /* - * Initialiaze the V-Port fields + * Initialize the V-Port fields */ __vport_fcid(vport) = bfa_lps_get_pid(vport->lps); vport->vport_stats.fdisc_accepts++; diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 0e05e8a2216..e81efac25fa 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -1082,7 +1082,7 @@ static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha) } /** - * pm8001_chip_iounmap - which maped when initilized. + * pm8001_chip_iounmap - which maped when initialized. * @pm8001_ha: our hba card information */ static void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 5510df8a7fa..cd3043265a6 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -183,7 +183,7 @@ static int qla4xxx_validate_mac_address(struct scsi_qla_host *ha) **/ static int qla4xxx_init_local_data(struct scsi_qla_host *ha) { - /* Initilize aen queue */ + /* Initialize aen queue */ ha->aen_q_count = MAX_AEN_ENTRIES; return qla4xxx_get_firmware_status(ha); diff --git a/drivers/serial/sn_console.c b/drivers/serial/sn_console.c index 9794e0cd3dc..7e5e5efea4e 100644 --- a/drivers/serial/sn_console.c +++ b/drivers/serial/sn_console.c @@ -470,7 +470,7 @@ sn_receive_chars(struct sn_cons_port *port, unsigned long flags) } if (port->sc_port.state) { - /* The serial_core stuffs are initilized, use them */ + /* The serial_core stuffs are initialized, use them */ tty = port->sc_port.state->port.tty; } else { @@ -551,11 +551,11 @@ static void sn_transmit_chars(struct sn_cons_port *port, int raw) BUG_ON(!port->sc_is_asynch); if (port->sc_port.state) { - /* We're initilized, using serial core infrastructure */ + /* We're initialized, using serial core infrastructure */ xmit = &port->sc_port.state->xmit; } else { /* Probably sn_sal_switch_to_asynch has been run but serial core isn't - * initilized yet. Just return. Writes are going through + * initialized yet. Just return. Writes are going through * sn_sal_console_write (due to register_console) at this time. */ return; diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c index 8942ae45708..e7271685f23 100644 --- a/drivers/staging/comedi/drivers/usbdux.c +++ b/drivers/staging/comedi/drivers/usbdux.c @@ -2087,7 +2087,7 @@ static int usbdux_pwm_start(struct comedi_device *dev, if (ret < 0) return ret; - /* initalise the buffer */ + /* initialise the buffer */ for (i = 0; i < this_usbduxsub->sizePwmBuf; i++) ((char *)(this_usbduxsub->urbPwm->transfer_buffer))[i] = 0; diff --git a/drivers/staging/octeon/cvmx-cmd-queue.c b/drivers/staging/octeon/cvmx-cmd-queue.c index 976227b0127..e9809d37516 100644 --- a/drivers/staging/octeon/cvmx-cmd-queue.c +++ b/drivers/staging/octeon/cvmx-cmd-queue.c @@ -140,21 +140,21 @@ cvmx_cmd_queue_result_t cvmx_cmd_queue_initialize(cvmx_cmd_queue_id_t queue_id, if (qstate->base_ptr_div128) { if (max_depth != (int)qstate->max_depth) { cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: " - "Queue already initalized with different " + "Queue already initialized with different " "max_depth (%d).\n", (int)qstate->max_depth); return CVMX_CMD_QUEUE_INVALID_PARAM; } if (fpa_pool != qstate->fpa_pool) { cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: " - "Queue already initalized with different " + "Queue already initialized with different " "FPA pool (%u).\n", qstate->fpa_pool); return CVMX_CMD_QUEUE_INVALID_PARAM; } if ((pool_size >> 3) - 1 != qstate->pool_size_m1) { cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: " - "Queue already initalized with different " + "Queue already initialized with different " "FPA pool size (%u).\n", (qstate->pool_size_m1 + 1) << 3); return CVMX_CMD_QUEUE_INVALID_PARAM; diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c index 63275529ff5..fe8b093fb61 100644 --- a/drivers/staging/pohmelfs/inode.c +++ b/drivers/staging/pohmelfs/inode.c @@ -848,7 +848,7 @@ static void pohmelfs_destroy_inode(struct inode *inode) } /* - * ->alloc_inode() callback. Allocates inode and initilizes private data. + * ->alloc_inode() callback. Allocates inode and initializes private data. */ static struct inode *pohmelfs_alloc_inode(struct super_block *sb) { diff --git a/drivers/staging/rt2860/common/cmm_wpa.c b/drivers/staging/rt2860/common/cmm_wpa.c index 94e119faaa7..e1ead76b907 100644 --- a/drivers/staging/rt2860/common/cmm_wpa.c +++ b/drivers/staging/rt2860/common/cmm_wpa.c @@ -427,7 +427,7 @@ void RTMPToWirelessSta(struct rt_rtmp_adapter *pAd, /* ========================================================================== Description: - This is a function to initilize 4-way handshake + This is a function to initialize 4-way handshake Return: @@ -867,7 +867,7 @@ void PeerPairMsg3Action(struct rt_rtmp_adapter *pAd, ========================================================================== Description: When receiving the last packet of 4-way pairwisekey handshake. - Initilize 2-way groupkey handshake following. + Initialize 2-way groupkey handshake following. Return: ========================================================================== */ diff --git a/drivers/staging/rtl8192e/r8190_rtl8256.c b/drivers/staging/rtl8192e/r8190_rtl8256.c index 1bd054d42f2..eff47f9cddb 100644 --- a/drivers/staging/rtl8192e/r8190_rtl8256.c +++ b/drivers/staging/rtl8192e/r8190_rtl8256.c @@ -501,13 +501,13 @@ SetRFPowerState8190( if((priv->ieee80211->eRFPowerState == eRfOff) && RT_IN_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC)) { // The current RF state is OFF and the RF OFF level is halting the NIC, re-initialize the NIC. bool rtstatus = true; - u32 InitilizeCount = 3; + u32 InitializeCount = 3; do { - InitilizeCount--; + InitializeCount--; priv->RegRfOff = false; rtstatus = NicIFEnableNIC(dev); - }while( (rtstatus != true) &&(InitilizeCount >0) ); + }while( (rtstatus != true) &&(InitializeCount >0) ); if(rtstatus != true) { diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index cdbe8bf7f67..e8a65ce45a2 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -261,7 +261,7 @@ static int klsi_105_startup(struct usb_serial *serial) spin_lock_init(&priv->lock); - /* priv->termios is left uninitalized until port opening */ + /* priv->termios is left uninitialized until port opening */ init_waitqueue_head(&serial->port[i]->write_wait); } diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c index eab86e4bc77..2054d4ee977 100644 --- a/drivers/usb/wusbcore/wusbhc.c +++ b/drivers/usb/wusbcore/wusbhc.c @@ -26,7 +26,7 @@ * the one that requires (phase B, wusbhc_b_{create,destroy}). * * This is so because usb_add_hcd() will start the HC, and thus, all - * the HC specific stuff has to be already initialiazed (like sysfs + * the HC specific stuff has to be already initialized (like sysfs * thingies). */ #include diff --git a/drivers/uwb/wlp/wss-lc.c b/drivers/uwb/wlp/wss-lc.c index 90accdd54c0..a005d2a03b5 100644 --- a/drivers/uwb/wlp/wss-lc.c +++ b/drivers/uwb/wlp/wss-lc.c @@ -180,7 +180,7 @@ error_kobject_register: * If memory was allocated for the kobject's name then it will * be freed by the kobject system during this time. * - * The EDA cache is removed and reinitilized when the WSS is removed. We + * The EDA cache is removed and reinitialized when the WSS is removed. We * thus loose knowledge of members of this WSS at that time and need not do * it here. */ diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c index d8345fcc4fe..6b19136aa18 100644 --- a/drivers/video/carminefb.c +++ b/drivers/video/carminefb.c @@ -432,7 +432,7 @@ static int init_hardware(struct carmine_hw *hw) u32 loops; u32 ret; - /* Initalize Carmine */ + /* Initialize Carmine */ /* Sets internal clock */ c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, CARMINE_DFLT_IP_CLOCK_ENABLE); diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c index 1b3b1c718e8..aba7686b1a3 100644 --- a/drivers/video/tgafb.c +++ b/drivers/video/tgafb.c @@ -305,7 +305,7 @@ tgafb_set_par(struct fb_info *info) TGA_WRITE_REG(par, htimings, TGA_HORIZ_REG); TGA_WRITE_REG(par, vtimings, TGA_VERT_REG); - /* Initalise RAMDAC. */ + /* Initialise RAMDAC. */ if (tga_type == TGA_TYPE_8PLANE && tga_bus_pci) { /* Init BT485 RAMDAC registers. */ diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 34ddda888e6..dc39d282488 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -436,7 +436,7 @@ befs_init_inodecache(void) init_once); if (befs_inode_cachep == NULL) { printk(KERN_ERR "befs_init_inodecache: " - "Couldn't initalize inode slabcache\n"); + "Couldn't initialize inode slabcache\n"); return -ENOMEM; } diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index 1cc087635a5..a2e3b562e65 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -762,7 +762,7 @@ ecryptfs_decrypt_page_offset(struct ecryptfs_crypt_stat *crypt_stat, /** * ecryptfs_init_crypt_ctx - * @crypt_stat: Uninitilized crypt stats structure + * @crypt_stat: Uninitialized crypt stats structure * * Initialize the crypto context. * diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 236b834b4ca..146f1f6a920 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2918,7 +2918,7 @@ fix_extent_len: * One of more index blocks maybe needed if the extent tree grow after * the unintialized extent split. To prevent ENOSPC occur at the IO * complete, we need to split the uninitialized extent before DIO submit - * the IO. The uninitilized extent called at this time will be split + * the IO. The uninitialized extent called at this time will be split * into three uninitialized extent(at most). After IO complete, the part * being filled will be convert to initialized by the end_io callback function * via ext4_convert_unwritten_extents(). diff --git a/fs/ext4/super.c b/fs/ext4/super.c index e14d22c170d..8d7539c9d77 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3008,7 +3008,7 @@ no_journal: ext4_ext_init(sb); err = ext4_mb_init(sb, needs_recovery); if (err) { - ext4_msg(sb, KERN_ERR, "failed to initalize mballoc (%d)", + ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)", err); goto failed_mount4; } diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c index 1e8af939b3e..5132c99b1ca 100644 --- a/fs/freevxfs/vxfs_super.c +++ b/fs/freevxfs/vxfs_super.c @@ -135,7 +135,7 @@ static int vxfs_remount(struct super_block *sb, int *flags, char *data) } /** - * vxfs_read_super - read superblock into memory and initalize filesystem + * vxfs_read_super - read superblock into memory and initialize filesystem * @sbp: VFS superblock (to fill) * @dp: fs private mount data * @silent: do not complain loudly when sth is wrong diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 2c26ce251cb..812f10233b1 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -2476,7 +2476,7 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb) kfree(osb->slot_recovery_generations); /* FIXME * This belongs in journal shutdown, but because we have to - * allocate osb->journal at the start of ocfs2_initalize_osb(), + * allocate osb->journal at the start of ocfs2_initialize_osb(), * we free it here. */ kfree(osb->journal); diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 0f22fdaf54a..29db72203bd 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -1221,7 +1221,7 @@ static void init_inode(struct inode *inode, struct treepath *path) inode_set_bytes(inode, to_real_used_space(inode, inode->i_blocks, SD_V2_SIZE)); - /* read persistent inode attributes from sd and initalise + /* read persistent inode attributes from sd and initialise generic inode flags from them */ REISERFS_I(inode)->i_attrs = sd_v2_attrs(sd); sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode); diff --git a/lib/random32.c b/lib/random32.c index 217d5c4b666..556d5ffe110 100644 --- a/lib/random32.c +++ b/lib/random32.c @@ -131,7 +131,7 @@ core_initcall(random32_init); /* * Generate better values after random number generator - * is fully initalized. + * is fully initialized. */ static int __init random32_reseed(void) { diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c index 94a45213faa..9323f894419 100644 --- a/net/netfilter/ipvs/ip_vs_lblc.c +++ b/net/netfilter/ipvs/ip_vs_lblc.c @@ -11,7 +11,7 @@ * Changes: * Martin Hamilton : fixed the terrible locking bugs * *lock(tbl->lock) ==> *lock(&tbl->lock) - * Wensong Zhang : fixed the uninitilized tbl->lock bug + * Wensong Zhang : fixed the uninitialized tbl->lock bug * Wensong Zhang : added doing full expiration check to * collect stale entries of 24+ hours when * no partial expire check in a half hour diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c index 535dc2b419d..dbeed8ea421 100644 --- a/net/netfilter/ipvs/ip_vs_lblcr.c +++ b/net/netfilter/ipvs/ip_vs_lblcr.c @@ -386,7 +386,7 @@ ip_vs_lblcr_new(struct ip_vs_lblcr_table *tbl, const union nf_inet_addr *daddr, ip_vs_addr_copy(dest->af, &en->addr, daddr); en->lastuse = jiffies; - /* initilize its dest set */ + /* initialize its dest set */ atomic_set(&(en->set.size), 0); INIT_LIST_HEAD(&en->set.list); rwlock_init(&en->set.lock); diff --git a/net/sctp/associola.c b/net/sctp/associola.c index e41feff19e4..0b85e525643 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -172,7 +172,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a asoc->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = (unsigned long)sp->autoclose * HZ; - /* Initilizes the timers */ + /* Initializes the timers */ for (i = SCTP_EVENT_TIMEOUT_NONE; i < SCTP_NUM_TIMEOUT_TYPES; ++i) setup_timer(&asoc->timers[i], sctp_timer_events[i], (unsigned long)asoc); diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 182749867c7..0f41b05bd4d 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1162,7 +1162,7 @@ SCTP_STATIC __init int sctp_init(void) /* Set the pressure threshold to be a fraction of global memory that * is up to 1/2 at 256 MB, decreasing toward zero with the amount of * memory, with a floor of 128 pages. - * Note this initalizes the data in sctpv6_prot too + * Note this initializes the data in sctpv6_prot too * Unabashedly stolen from tcp_init */ nr_pages = totalram_pages - totalhigh_pages; diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 0f2fc480fc6..276bdc7325e 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3227,7 +3227,7 @@ static __init int smack_init(void) cred = (struct cred *) current->cred; cred->security = &smack_known_floor.smk_known; - /* initilize the smack_know_list */ + /* initialize the smack_know_list */ init_smack_know_list(); /* * Initialize locks diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c index 6d943f6f6b7..2870a4fdc13 100644 --- a/sound/pci/trident/trident_main.c +++ b/sound/pci/trident/trident_main.c @@ -1055,7 +1055,7 @@ static int snd_trident_capture_prepare(struct snd_pcm_substream *substream) spin_lock_irq(&trident->reg_lock); - // Initilize the channel and set channel Mode + // Initialize the channel and set channel Mode outb(0, TRID_REG(trident, LEGACY_DMAR15)); // Set DMA channel operation mode register diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c index 83de1c81c8c..604a91fa31b 100644 --- a/sound/soc/fsl/mpc8610_hpcd.c +++ b/sound/soc/fsl/mpc8610_hpcd.c @@ -46,7 +46,7 @@ struct mpc8610_hpcd_data { }; /** - * mpc8610_hpcd_machine_probe: initalize the board + * mpc8610_hpcd_machine_probe: initialize the board * * This function is called when platform_device_add() is called. It is used * to initialize the board-specific hardware. diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 998569d6033..e048e091009 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1307,7 +1307,7 @@ cpu_dai_err: } /* - * Attempt to initialise any uninitalised cards. Must be called with + * Attempt to initialise any uninitialised cards. Must be called with * client_mutex. */ static void snd_soc_instantiate_cards(void) -- cgit v1.2.3-70-g09d2 From 2122ff5eab8faec853e43f6de886e8dc8f31e317 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 13 May 2010 11:25:04 +0300 Subject: KVM: move vcpu locking to dispatcher for generic vcpu ioctls All vcpu ioctls need to be locked, so instead of locking each one specifically we lock at the generic dispatcher. This patch only updates generic ioctls and leaves arch specific ioctls alone. Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm-ia64.c | 11 ----------- arch/powerpc/kvm/book3s.c | 16 ---------------- arch/powerpc/kvm/booke.c | 10 ---------- arch/powerpc/kvm/powerpc.c | 4 ---- arch/s390/kvm/kvm-s390.c | 16 ---------------- arch/x86/kvm/x86.c | 40 ++-------------------------------------- virt/kvm/kvm_main.c | 15 +++++++++++++++ 7 files changed, 17 insertions(+), 95 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 21b701374f7..91760e80e26 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -725,8 +725,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int r; sigset_t sigsaved; - vcpu_load(vcpu); - if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); @@ -748,7 +746,6 @@ out: if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); - vcpu_put(vcpu); return r; } @@ -883,8 +880,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) struct vpd *vpd = to_host(vcpu->kvm, vcpu->arch.vpd); int i; - vcpu_load(vcpu); - for (i = 0; i < 16; i++) { vpd->vgr[i] = regs->vpd.vgr[i]; vpd->vbgr[i] = regs->vpd.vbgr[i]; @@ -931,8 +926,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) vcpu->arch.itc_offset = regs->saved_itc - kvm_get_itc(vcpu); set_bit(KVM_REQ_RESUME, &vcpu->requests); - vcpu_put(vcpu); - return 0; } @@ -1967,9 +1960,7 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { - vcpu_load(vcpu); mp_state->mp_state = vcpu->arch.mp_state; - vcpu_put(vcpu); return 0; } @@ -2000,10 +1991,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, { int r = 0; - vcpu_load(vcpu); vcpu->arch.mp_state = mp_state->mp_state; if (vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED) r = vcpu_reset(vcpu); - vcpu_put(vcpu); return r; } diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index b998abf1a63..f6eac2f337d 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1047,8 +1047,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; - vcpu_load(vcpu); - regs->pc = kvmppc_get_pc(vcpu); regs->cr = kvmppc_get_cr(vcpu); regs->ctr = kvmppc_get_ctr(vcpu); @@ -1069,8 +1067,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) regs->gpr[i] = kvmppc_get_gpr(vcpu, i); - vcpu_put(vcpu); - return 0; } @@ -1078,8 +1074,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; - vcpu_load(vcpu); - kvmppc_set_pc(vcpu, regs->pc); kvmppc_set_cr(vcpu, regs->cr); kvmppc_set_ctr(vcpu, regs->ctr); @@ -1099,8 +1093,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) kvmppc_set_gpr(vcpu, i, regs->gpr[i]); - vcpu_put(vcpu); - return 0; } @@ -1110,8 +1102,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); int i; - vcpu_load(vcpu); - sregs->pvr = vcpu->arch.pvr; sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1; @@ -1131,8 +1121,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, } } - vcpu_put(vcpu); - return 0; } @@ -1142,8 +1130,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); int i; - vcpu_load(vcpu); - kvmppc_set_pvr(vcpu, sregs->pvr); vcpu3s->sdr1 = sregs->u.s.sdr1; @@ -1171,8 +1157,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, /* Flush the MMU after messing with the segments */ kvmppc_mmu_pte_flush(vcpu, 0, 0); - vcpu_put(vcpu); - return 0; } diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index a33ab8cc2cc..b687f430f8c 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -485,8 +485,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; - vcpu_load(vcpu); - regs->pc = vcpu->arch.pc; regs->cr = kvmppc_get_cr(vcpu); regs->ctr = vcpu->arch.ctr; @@ -507,8 +505,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) regs->gpr[i] = kvmppc_get_gpr(vcpu, i); - vcpu_put(vcpu); - return 0; } @@ -516,8 +512,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; - vcpu_load(vcpu); - vcpu->arch.pc = regs->pc; kvmppc_set_cr(vcpu, regs->cr); vcpu->arch.ctr = regs->ctr; @@ -537,8 +531,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) kvmppc_set_gpr(vcpu, i, regs->gpr[i]); - vcpu_put(vcpu); - return 0; } @@ -569,9 +561,7 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, { int r; - vcpu_load(vcpu); r = kvmppc_core_vcpu_translate(vcpu, tr); - vcpu_put(vcpu); return r; } diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 9b8683f39e0..e0fae7a618c 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -423,8 +423,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) int r; sigset_t sigsaved; - vcpu_load(vcpu); - if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); @@ -456,8 +454,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); - vcpu_put(vcpu); - return r; } diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ae370581687..0d0e0add020 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -371,55 +371,43 @@ static int kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_gprs, ®s->gprs, sizeof(regs->gprs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); memcpy(®s->gprs, &vcpu->arch.guest_gprs, sizeof(regs->gprs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_acrs, &sregs->acrs, sizeof(sregs->acrs)); memcpy(&vcpu->arch.sie_block->gcr, &sregs->crs, sizeof(sregs->crs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { - vcpu_load(vcpu); memcpy(&sregs->acrs, &vcpu->arch.guest_acrs, sizeof(sregs->acrs)); memcpy(&sregs->crs, &vcpu->arch.sie_block->gcr, sizeof(sregs->crs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); vcpu->arch.guest_fpregs.fpc = fpu->fpc; - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { - vcpu_load(vcpu); memcpy(&fpu->fprs, &vcpu->arch.guest_fpregs.fprs, sizeof(fpu->fprs)); fpu->fpc = vcpu->arch.guest_fpregs.fpc; - vcpu_put(vcpu); return 0; } @@ -498,8 +486,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int rc; sigset_t sigsaved; - vcpu_load(vcpu); - rerun_vcpu: if (vcpu->requests) if (test_and_clear_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests)) @@ -568,8 +554,6 @@ rerun_vcpu: if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); - vcpu_put(vcpu); - vcpu->stat.exit_userspace++; return rc; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b05321adfd2..5acd21245fc 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4773,8 +4773,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int r; sigset_t sigsaved; - vcpu_load(vcpu); - if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); @@ -4815,14 +4813,11 @@ out: if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); - vcpu_put(vcpu); return r; } int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); - regs->rax = kvm_register_read(vcpu, VCPU_REGS_RAX); regs->rbx = kvm_register_read(vcpu, VCPU_REGS_RBX); regs->rcx = kvm_register_read(vcpu, VCPU_REGS_RCX); @@ -4845,15 +4840,11 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) regs->rip = kvm_rip_read(vcpu); regs->rflags = kvm_get_rflags(vcpu); - vcpu_put(vcpu); - return 0; } int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); - kvm_register_write(vcpu, VCPU_REGS_RAX, regs->rax); kvm_register_write(vcpu, VCPU_REGS_RBX, regs->rbx); kvm_register_write(vcpu, VCPU_REGS_RCX, regs->rcx); @@ -4878,8 +4869,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) vcpu->arch.exception.pending = false; - vcpu_put(vcpu); - return 0; } @@ -4898,8 +4887,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, { struct desc_ptr dt; - vcpu_load(vcpu); - kvm_get_segment(vcpu, &sregs->cs, VCPU_SREG_CS); kvm_get_segment(vcpu, &sregs->ds, VCPU_SREG_DS); kvm_get_segment(vcpu, &sregs->es, VCPU_SREG_ES); @@ -4931,26 +4918,20 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, set_bit(vcpu->arch.interrupt.nr, (unsigned long *)sregs->interrupt_bitmap); - vcpu_put(vcpu); - return 0; } int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { - vcpu_load(vcpu); mp_state->mp_state = vcpu->arch.mp_state; - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { - vcpu_load(vcpu); vcpu->arch.mp_state = mp_state->mp_state; - vcpu_put(vcpu); return 0; } @@ -4996,8 +4977,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, int pending_vec, max_bits; struct desc_ptr dt; - vcpu_load(vcpu); - dt.size = sregs->idt.limit; dt.address = sregs->idt.base; kvm_x86_ops->set_idt(vcpu, &dt); @@ -5057,8 +5036,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, !is_protmode(vcpu)) vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; - vcpu_put(vcpu); - return 0; } @@ -5068,12 +5045,10 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, unsigned long rflags; int i, r; - vcpu_load(vcpu); - if (dbg->control & (KVM_GUESTDBG_INJECT_DB | KVM_GUESTDBG_INJECT_BP)) { r = -EBUSY; if (vcpu->arch.exception.pending) - goto unlock_out; + goto out; if (dbg->control & KVM_GUESTDBG_INJECT_DB) kvm_queue_exception(vcpu, DB_VECTOR); else @@ -5115,8 +5090,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, r = 0; -unlock_out: - vcpu_put(vcpu); +out: return r; } @@ -5152,7 +5126,6 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, gpa_t gpa; int idx; - vcpu_load(vcpu); idx = srcu_read_lock(&vcpu->kvm->srcu); gpa = kvm_mmu_gva_to_gpa_system(vcpu, vaddr, NULL); srcu_read_unlock(&vcpu->kvm->srcu, idx); @@ -5160,7 +5133,6 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, tr->valid = gpa != UNMAPPED_GVA; tr->writeable = 1; tr->usermode = 0; - vcpu_put(vcpu); return 0; } @@ -5169,8 +5141,6 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { struct fxsave *fxsave = (struct fxsave *)&vcpu->arch.guest_fx_image; - vcpu_load(vcpu); - memcpy(fpu->fpr, fxsave->st_space, 128); fpu->fcw = fxsave->cwd; fpu->fsw = fxsave->swd; @@ -5180,8 +5150,6 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) fpu->last_dp = fxsave->rdp; memcpy(fpu->xmm, fxsave->xmm_space, sizeof fxsave->xmm_space); - vcpu_put(vcpu); - return 0; } @@ -5189,8 +5157,6 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { struct fxsave *fxsave = (struct fxsave *)&vcpu->arch.guest_fx_image; - vcpu_load(vcpu); - memcpy(fxsave->st_space, fpu->fpr, 128); fxsave->cwd = fpu->fcw; fxsave->swd = fpu->fsw; @@ -5200,8 +5166,6 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) fxsave->rdp = fpu->last_dp; memcpy(fxsave->xmm_space, fpu->xmm, sizeof fxsave->xmm_space); - vcpu_put(vcpu); - return 0; } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 187aa8d984a..e0fb0988a3f 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1392,6 +1392,18 @@ static long kvm_vcpu_ioctl(struct file *filp, if (vcpu->kvm->mm != current->mm) return -EIO; + +#if defined(CONFIG_S390) || defined(CONFIG_PPC) + /* + * Special cases: vcpu ioctls that are asynchronous to vcpu execution, + * so vcpu_load() would break it. + */ + if (ioctl == KVM_S390_INTERRUPT || ioctl == KVM_INTERRUPT) + return kvm_arch_vcpu_ioctl(filp, ioctl, arg); +#endif + + + vcpu_load(vcpu); switch (ioctl) { case KVM_RUN: r = -EINVAL; @@ -1566,9 +1578,12 @@ out_free2: break; } default: + vcpu_put(vcpu); r = kvm_arch_vcpu_ioctl(filp, ioctl, arg); + vcpu_load(vcpu); } out: + vcpu_put(vcpu); kfree(fpu); kfree(kvm_sregs); return r; -- cgit v1.2.3-70-g09d2 From a1f4d39500ad8ed61825eff061debff42386ab5b Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 21 Jun 2010 11:44:20 +0300 Subject: KVM: Remove memory alias support As advertised in feature-removal-schedule.txt. Equivalent support is provided by overlapping memory regions. Signed-off-by: Avi Kivity --- Documentation/feature-removal-schedule.txt | 11 --- Documentation/kvm/api.txt | 12 +-- arch/ia64/kvm/kvm-ia64.c | 5 -- arch/powerpc/kvm/powerpc.c | 5 -- arch/s390/kvm/kvm-s390.c | 5 -- arch/x86/include/asm/kvm_host.h | 21 ----- arch/x86/kvm/mmu.c | 17 +--- arch/x86/kvm/paging_tmpl.h | 3 +- arch/x86/kvm/x86.c | 125 ----------------------------- arch/x86/kvm/x86.h | 7 -- include/linux/kvm.h | 1 + include/linux/kvm_host.h | 6 -- virt/kvm/kvm_main.c | 18 +---- 13 files changed, 11 insertions(+), 225 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 1571c0c83db..ad1e90dd278 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -538,17 +538,6 @@ Who: Jan Kiszka ---------------------------- -What: KVM memory aliases support -When: July 2010 -Why: Memory aliasing support is used for speeding up guest vga access - through the vga windows. - - Modern userspace no longer uses this feature, so it's just bitrotted - code and can be removed with no impact. -Who: Avi Kivity - ----------------------------- - What: xtime, wall_to_monotonic When: 2.6.36+ Files: kernel/time/timekeeping.c include/linux/time.h diff --git a/Documentation/kvm/api.txt b/Documentation/kvm/api.txt index ffba03f55bd..7e415943a11 100644 --- a/Documentation/kvm/api.txt +++ b/Documentation/kvm/api.txt @@ -226,17 +226,7 @@ Type: vm ioctl Parameters: struct kvm_memory_alias (in) Returns: 0 (success), -1 (error) -struct kvm_memory_alias { - __u32 slot; /* this has a different namespace than memory slots */ - __u32 flags; - __u64 guest_phys_addr; - __u64 memory_size; - __u64 target_phys_addr; -}; - -Defines a guest physical address space region as an alias to another -region. Useful for aliased address, for example the VGA low memory -window. Should not be used with userspace memory. +This ioctl is obsolete and has been removed. 4.9 KVM_RUN diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 91760e80e26..bd510beb43a 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1946,11 +1946,6 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu) return vcpu->arch.timer_fired; } -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) -{ - return gfn; -} - int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) { return (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE) || diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index b5ebdfbed20..72a4ad86ee9 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -36,11 +36,6 @@ #define CREATE_TRACE_POINTS #include "trace.h" -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) -{ - return gfn; -} - int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) { return !(v->arch.msr & MSR_WE) || !!(v->arch.pending_exceptions); diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 08a3b35d30b..4fe68650535 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -723,11 +723,6 @@ void kvm_arch_flush_shadow(struct kvm *kvm) { } -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) -{ - return gfn; -} - static int __init kvm_s390_init(void) { int ret; diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 2ec2e27a403..a57cdeacc4d 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -69,8 +69,6 @@ #define IOPL_SHIFT 12 -#define KVM_ALIAS_SLOTS 4 - #define KVM_PERMILLE_MMU_PAGES 20 #define KVM_MIN_ALLOC_MMU_PAGES 64 #define KVM_MMU_HASH_SHIFT 10 @@ -362,24 +360,7 @@ struct kvm_vcpu_arch { u64 hv_vapic; }; -struct kvm_mem_alias { - gfn_t base_gfn; - unsigned long npages; - gfn_t target_gfn; -#define KVM_ALIAS_INVALID 1UL - unsigned long flags; -}; - -#define KVM_ARCH_HAS_UNALIAS_INSTANTIATION - -struct kvm_mem_aliases { - struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; - int naliases; -}; - struct kvm_arch { - struct kvm_mem_aliases *aliases; - unsigned int n_free_mmu_pages; unsigned int n_requested_mmu_pages; unsigned int n_alloc_mmu_pages; @@ -655,8 +636,6 @@ void kvm_disable_tdp(void); int complete_pio(struct kvm_vcpu *vcpu); bool kvm_check_iopl(struct kvm_vcpu *vcpu); -struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn); - static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) { struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 8c2f580956d..c5501bc1010 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -434,9 +434,7 @@ static void account_shadowed(struct kvm *kvm, gfn_t gfn) int *write_count; int i; - gfn = unalias_gfn(kvm, gfn); - - slot = gfn_to_memslot_unaliased(kvm, gfn); + slot = gfn_to_memslot(kvm, gfn); for (i = PT_DIRECTORY_LEVEL; i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) { write_count = slot_largepage_idx(gfn, slot, i); @@ -450,8 +448,7 @@ static void unaccount_shadowed(struct kvm *kvm, gfn_t gfn) int *write_count; int i; - gfn = unalias_gfn(kvm, gfn); - slot = gfn_to_memslot_unaliased(kvm, gfn); + slot = gfn_to_memslot(kvm, gfn); for (i = PT_DIRECTORY_LEVEL; i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) { write_count = slot_largepage_idx(gfn, slot, i); @@ -467,8 +464,7 @@ static int has_wrprotected_page(struct kvm *kvm, struct kvm_memory_slot *slot; int *largepage_idx; - gfn = unalias_gfn(kvm, gfn); - slot = gfn_to_memslot_unaliased(kvm, gfn); + slot = gfn_to_memslot(kvm, gfn); if (slot) { largepage_idx = slot_largepage_idx(gfn, slot, level); return *largepage_idx; @@ -521,7 +517,6 @@ static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn) /* * Take gfn and return the reverse mapping to it. - * Note: gfn must be unaliased before this function get called */ static unsigned long *gfn_to_rmap(struct kvm *kvm, gfn_t gfn, int level) @@ -561,7 +556,6 @@ static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn) if (!is_rmap_spte(*spte)) return count; - gfn = unalias_gfn(vcpu->kvm, gfn); sp = page_header(__pa(spte)); kvm_mmu_page_set_gfn(sp, spte - sp->spt, gfn); rmapp = gfn_to_rmap(vcpu->kvm, gfn, sp->role.level); @@ -698,7 +692,6 @@ static int rmap_write_protect(struct kvm *kvm, u64 gfn) u64 *spte; int i, write_protected = 0; - gfn = unalias_gfn(kvm, gfn); rmapp = gfn_to_rmap(kvm, gfn, PT_PAGE_TABLE_LEVEL); spte = rmap_next(kvm, rmapp, NULL); @@ -885,7 +878,6 @@ static void rmap_recycle(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn) sp = page_header(__pa(spte)); - gfn = unalias_gfn(vcpu->kvm, gfn); rmapp = gfn_to_rmap(vcpu->kvm, gfn, sp->role.level); kvm_unmap_rmapp(vcpu->kvm, rmapp, 0); @@ -3510,8 +3502,7 @@ static void audit_write_protection(struct kvm_vcpu *vcpu) if (sp->unsync) continue; - gfn = unalias_gfn(vcpu->kvm, sp->gfn); - slot = gfn_to_memslot_unaliased(vcpu->kvm, sp->gfn); + slot = gfn_to_memslot(vcpu->kvm, sp->gfn); rmapp = &slot->rmap[gfn - slot->base_gfn]; spte = rmap_next(vcpu->kvm, rmapp, NULL); diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 863920f649f..a21a86ef9e2 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -576,7 +576,6 @@ static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu, * Using the cached information from sp->gfns is safe because: * - The spte has a reference to the struct page, so the pfn for a given gfn * can't change unless all sptes pointing to it are nuked first. - * - Alias changes zap the entire shadow cache. */ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, bool clear_unsync) @@ -611,7 +610,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, return -EINVAL; gfn = gpte_to_gfn(gpte); - if (unalias_gfn(vcpu->kvm, gfn) != sp->gfns[i] || + if (gfn != sp->gfns[i] || !is_present_gpte(gpte) || !(gpte & PT_ACCESSED_MASK)) { u64 nonpresent; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8e60b6c9c0b..62596d373a4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2740,115 +2740,6 @@ static int kvm_vm_ioctl_get_nr_mmu_pages(struct kvm *kvm) return kvm->arch.n_alloc_mmu_pages; } -gfn_t unalias_gfn_instantiation(struct kvm *kvm, gfn_t gfn) -{ - int i; - struct kvm_mem_alias *alias; - struct kvm_mem_aliases *aliases; - - aliases = kvm_aliases(kvm); - - for (i = 0; i < aliases->naliases; ++i) { - alias = &aliases->aliases[i]; - if (alias->flags & KVM_ALIAS_INVALID) - continue; - if (gfn >= alias->base_gfn - && gfn < alias->base_gfn + alias->npages) - return alias->target_gfn + gfn - alias->base_gfn; - } - return gfn; -} - -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) -{ - int i; - struct kvm_mem_alias *alias; - struct kvm_mem_aliases *aliases; - - aliases = kvm_aliases(kvm); - - for (i = 0; i < aliases->naliases; ++i) { - alias = &aliases->aliases[i]; - if (gfn >= alias->base_gfn - && gfn < alias->base_gfn + alias->npages) - return alias->target_gfn + gfn - alias->base_gfn; - } - return gfn; -} - -/* - * Set a new alias region. Aliases map a portion of physical memory into - * another portion. This is useful for memory windows, for example the PC - * VGA region. - */ -static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm, - struct kvm_memory_alias *alias) -{ - int r, n; - struct kvm_mem_alias *p; - struct kvm_mem_aliases *aliases, *old_aliases; - - r = -EINVAL; - /* General sanity checks */ - if (alias->memory_size & (PAGE_SIZE - 1)) - goto out; - if (alias->guest_phys_addr & (PAGE_SIZE - 1)) - goto out; - if (alias->slot >= KVM_ALIAS_SLOTS) - goto out; - if (alias->guest_phys_addr + alias->memory_size - < alias->guest_phys_addr) - goto out; - if (alias->target_phys_addr + alias->memory_size - < alias->target_phys_addr) - goto out; - - r = -ENOMEM; - aliases = kzalloc(sizeof(struct kvm_mem_aliases), GFP_KERNEL); - if (!aliases) - goto out; - - mutex_lock(&kvm->slots_lock); - - /* invalidate any gfn reference in case of deletion/shrinking */ - memcpy(aliases, kvm->arch.aliases, sizeof(struct kvm_mem_aliases)); - aliases->aliases[alias->slot].flags |= KVM_ALIAS_INVALID; - old_aliases = kvm->arch.aliases; - rcu_assign_pointer(kvm->arch.aliases, aliases); - synchronize_srcu_expedited(&kvm->srcu); - kvm_mmu_zap_all(kvm); - kfree(old_aliases); - - r = -ENOMEM; - aliases = kzalloc(sizeof(struct kvm_mem_aliases), GFP_KERNEL); - if (!aliases) - goto out_unlock; - - memcpy(aliases, kvm->arch.aliases, sizeof(struct kvm_mem_aliases)); - - p = &aliases->aliases[alias->slot]; - p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT; - p->npages = alias->memory_size >> PAGE_SHIFT; - p->target_gfn = alias->target_phys_addr >> PAGE_SHIFT; - p->flags &= ~(KVM_ALIAS_INVALID); - - for (n = KVM_ALIAS_SLOTS; n > 0; --n) - if (aliases->aliases[n - 1].npages) - break; - aliases->naliases = n; - - old_aliases = kvm->arch.aliases; - rcu_assign_pointer(kvm->arch.aliases, aliases); - synchronize_srcu_expedited(&kvm->srcu); - kfree(old_aliases); - r = 0; - -out_unlock: - mutex_unlock(&kvm->slots_lock); -out: - return r; -} - static int kvm_vm_ioctl_get_irqchip(struct kvm *kvm, struct kvm_irqchip *chip) { int r; @@ -3056,7 +2947,6 @@ long kvm_arch_vm_ioctl(struct file *filp, union { struct kvm_pit_state ps; struct kvm_pit_state2 ps2; - struct kvm_memory_alias alias; struct kvm_pit_config pit_config; } u; @@ -3101,14 +2991,6 @@ long kvm_arch_vm_ioctl(struct file *filp, case KVM_GET_NR_MMU_PAGES: r = kvm_vm_ioctl_get_nr_mmu_pages(kvm); break; - case KVM_SET_MEMORY_ALIAS: - r = -EFAULT; - if (copy_from_user(&u.alias, argp, sizeof(struct kvm_memory_alias))) - goto out; - r = kvm_vm_ioctl_set_memory_alias(kvm, &u.alias); - if (r) - goto out; - break; case KVM_CREATE_IRQCHIP: { struct kvm_pic *vpic; @@ -5559,12 +5441,6 @@ struct kvm *kvm_arch_create_vm(void) if (!kvm) return ERR_PTR(-ENOMEM); - kvm->arch.aliases = kzalloc(sizeof(struct kvm_mem_aliases), GFP_KERNEL); - if (!kvm->arch.aliases) { - kfree(kvm); - return ERR_PTR(-ENOMEM); - } - INIT_LIST_HEAD(&kvm->arch.active_mmu_pages); INIT_LIST_HEAD(&kvm->arch.assigned_dev_head); @@ -5622,7 +5498,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm) if (kvm->arch.ept_identity_pagetable) put_page(kvm->arch.ept_identity_pagetable); cleanup_srcu_struct(&kvm->srcu); - kfree(kvm->arch.aliases); kfree(kvm); } diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index f4b54458285..b7a404722d2 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -65,13 +65,6 @@ static inline int is_paging(struct kvm_vcpu *vcpu) return kvm_read_cr0_bits(vcpu, X86_CR0_PG); } -static inline struct kvm_mem_aliases *kvm_aliases(struct kvm *kvm) -{ - return rcu_dereference_check(kvm->arch.aliases, - srcu_read_lock_held(&kvm->srcu) - || lockdep_is_held(&kvm->slots_lock)); -} - void kvm_before_handle_nmi(struct kvm_vcpu *vcpu); void kvm_after_handle_nmi(struct kvm_vcpu *vcpu); diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 6fd40f540a8..636fc381c89 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -619,6 +619,7 @@ struct kvm_clock_data { */ #define KVM_CREATE_VCPU _IO(KVMIO, 0x41) #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log) +/* KVM_SET_MEMORY_ALIAS is obsolete: */ #define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias) #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44) #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 2d96555cd4e..240e460777b 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -286,8 +286,6 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, int user_alloc); void kvm_disable_largepages(void); void kvm_arch_flush_shadow(struct kvm *kvm); -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn); -gfn_t unalias_gfn_instantiation(struct kvm *kvm, gfn_t gfn); struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); @@ -564,10 +562,6 @@ static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_se } #endif -#ifndef KVM_ARCH_HAS_UNALIAS_INSTANTIATION -#define unalias_gfn_instantiation unalias_gfn -#endif - #ifdef CONFIG_HAVE_KVM_IRQCHIP #define KVM_MAX_IRQ_ROUTES 1024 diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 84a090644d9..65417e3d846 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -841,7 +841,7 @@ int kvm_is_error_hva(unsigned long addr) } EXPORT_SYMBOL_GPL(kvm_is_error_hva); -struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn) +struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) { int i; struct kvm_memslots *slots = kvm_memslots(kvm); @@ -855,20 +855,13 @@ struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn) } return NULL; } -EXPORT_SYMBOL_GPL(gfn_to_memslot_unaliased); - -struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) -{ - gfn = unalias_gfn(kvm, gfn); - return gfn_to_memslot_unaliased(kvm, gfn); -} +EXPORT_SYMBOL_GPL(gfn_to_memslot); int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn) { int i; struct kvm_memslots *slots = kvm_memslots(kvm); - gfn = unalias_gfn_instantiation(kvm, gfn); for (i = 0; i < KVM_MEMORY_SLOTS; ++i) { struct kvm_memory_slot *memslot = &slots->memslots[i]; @@ -913,7 +906,6 @@ int memslot_id(struct kvm *kvm, gfn_t gfn) struct kvm_memslots *slots = kvm_memslots(kvm); struct kvm_memory_slot *memslot = NULL; - gfn = unalias_gfn(kvm, gfn); for (i = 0; i < slots->nmemslots; ++i) { memslot = &slots->memslots[i]; @@ -934,8 +926,7 @@ unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn) { struct kvm_memory_slot *slot; - gfn = unalias_gfn_instantiation(kvm, gfn); - slot = gfn_to_memslot_unaliased(kvm, gfn); + slot = gfn_to_memslot(kvm, gfn); if (!slot || slot->flags & KVM_MEMSLOT_INVALID) return bad_hva(); return gfn_to_hva_memslot(slot, gfn); @@ -1202,8 +1193,7 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn) { struct kvm_memory_slot *memslot; - gfn = unalias_gfn(kvm, gfn); - memslot = gfn_to_memslot_unaliased(kvm, gfn); + memslot = gfn_to_memslot(kvm, gfn); if (memslot && memslot->dirty_bitmap) { unsigned long rel_gfn = gfn - memslot->base_gfn; -- cgit v1.2.3-70-g09d2 From 4482b06c0459469c101a1da3f4b24594da557f99 Mon Sep 17 00:00:00 2001 From: Takuya Yoshikawa Date: Wed, 23 Jun 2010 14:59:29 +0900 Subject: KVM: ia64: fix dirty_log_lock spin_lock section not to include get_dirty_log() kvm_get_dirty_log() calls copy_to_user(). So we need to narrow the dirty_log_lock spin_lock section not to include this. Signed-off-by: Takuya Yoshikawa Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm-ia64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index bd510beb43a..d85b5d2d52d 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1817,10 +1817,12 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm, n = kvm_dirty_bitmap_bytes(memslot); base = memslot->base_gfn / BITS_PER_LONG; + spin_lock(&kvm->arch.dirty_log_lock); for (i = 0; i < n/sizeof(long); ++i) { memslot->dirty_bitmap[i] = dirty_bitmap[base + i]; dirty_bitmap[base + i] = 0; } + spin_unlock(&kvm->arch.dirty_log_lock); r = 0; out: return r; @@ -1835,7 +1837,6 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, int is_dirty = 0; mutex_lock(&kvm->slots_lock); - spin_lock(&kvm->arch.dirty_log_lock); r = kvm_ia64_sync_dirty_log(kvm, log); if (r) @@ -1855,7 +1856,6 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, r = 0; out: mutex_unlock(&kvm->slots_lock); - spin_unlock(&kvm->arch.dirty_log_lock); return r; } -- cgit v1.2.3-70-g09d2 From 979586e0b5809c46ebe5d784794a9f6d859b665e Mon Sep 17 00:00:00 2001 From: Takuya Yoshikawa Date: Wed, 23 Jun 2010 15:00:29 +0900 Subject: KVM: ia64: cleanup kvm_ia64_sync_dirty_log() kvm_ia64_sync_dirty_log() is a helper function for kvm_vm_ioctl_get_dirty_log() which copies ia64's arch specific dirty bitmap to general one in memslot. So doing sanity checks in this function is unnatural. We move these checks outside of this and change the prototype appropriately. Signed-off-by: Takuya Yoshikawa Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm-ia64.c | 30 +++++++++++------------------- 1 file changed, 11 insertions(+), 19 deletions(-) (limited to 'arch/ia64/kvm/kvm-ia64.c') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index d85b5d2d52d..5cb58655cd5 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1795,25 +1795,15 @@ void kvm_arch_exit(void) kvm_vmm_info = NULL; } -static int kvm_ia64_sync_dirty_log(struct kvm *kvm, - struct kvm_dirty_log *log) +static void kvm_ia64_sync_dirty_log(struct kvm *kvm, + struct kvm_memory_slot *memslot) { - struct kvm_memory_slot *memslot; - int r, i; + int i; long base; unsigned long n; unsigned long *dirty_bitmap = (unsigned long *)(kvm->arch.vm_base + offsetof(struct kvm_vm_data, kvm_mem_dirty_log)); - r = -EINVAL; - if (log->slot >= KVM_MEMORY_SLOTS) - goto out; - - memslot = &kvm->memslots->memslots[log->slot]; - r = -ENOENT; - if (!memslot->dirty_bitmap) - goto out; - n = kvm_dirty_bitmap_bytes(memslot); base = memslot->base_gfn / BITS_PER_LONG; @@ -1823,9 +1813,6 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm, dirty_bitmap[base + i] = 0; } spin_unlock(&kvm->arch.dirty_log_lock); - r = 0; -out: - return r; } int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, @@ -1838,10 +1825,16 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, mutex_lock(&kvm->slots_lock); - r = kvm_ia64_sync_dirty_log(kvm, log); - if (r) + r = -EINVAL; + if (log->slot >= KVM_MEMORY_SLOTS) + goto out; + + memslot = &kvm->memslots->memslots[log->slot]; + r = -ENOENT; + if (!memslot->dirty_bitmap) goto out; + kvm_ia64_sync_dirty_log(kvm, memslot); r = kvm_get_dirty_log(kvm, log, &is_dirty); if (r) goto out; @@ -1849,7 +1842,6 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, /* If nothing is dirty, don't bother messing with page tables. */ if (is_dirty) { kvm_flush_remote_tlbs(kvm); - memslot = &kvm->memslots->memslots[log->slot]; n = kvm_dirty_bitmap_bytes(memslot); memset(memslot->dirty_bitmap, 0, n); } -- cgit v1.2.3-70-g09d2