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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 20:58:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 20:58:09 -0800
commit2a7d2b96d5cba7568139d9ab157a0e97ab32440f (patch)
treead029d8cc7b7068b7250e914360ec6315fdfa114 /arch/x86
parente3c4877de8b9d93bd47b6ee88eb594b1c1e10da5 (diff)
parentb67bfe0d42cac56c512dd5da4b1b347a23f4b70a (diff)
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Merge branch 'akpm' (final batch from Andrew)
Merge third patch-bumb from Andrew Morton: "This wraps me up for -rc1. - Lots of misc stuff and things which were deferred/missed from patchbombings 1 & 2. - ocfs2 things - lib/scatterlist - hfsplus - fatfs - documentation - signals - procfs - lockdep - coredump - seqfile core - kexec - Tejun's large IDR tree reworkings - ipmi - partitions - nbd - random() things - kfifo - tools/testing/selftests updates - Sasha's large and pointless hlist cleanup" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (163 commits) hlist: drop the node parameter from iterators kcmp: make it depend on CHECKPOINT_RESTORE selftests: add a simple doc tools/testing/selftests/Makefile: rearrange targets selftests/efivarfs: add create-read test selftests/efivarfs: add empty file creation test selftests: add tests for efivarfs kfifo: fix kfifo_alloc() and kfifo_init() kfifo: move kfifo.c from kernel/ to lib/ arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS w1: add support for DS2413 Dual Channel Addressable Switch memstick: move the dereference below the NULL test drivers/pps/clients/pps-gpio.c: use devm_kzalloc Documentation/DMA-API-HOWTO.txt: fix typo include/linux/eventfd.h: fix incorrect filename is a comment mtd: mtd_stresstest: use prandom_bytes() mtd: mtd_subpagetest: convert to use prandom library mtd: mtd_speedtest: use prandom_bytes mtd: mtd_pagetest: convert to use prandom library mtd: mtd_oobtest: convert to use prandom library ...
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/kernel/kprobes/core.c8
-rw-r--r--arch/x86/kvm/mmu.c26
3 files changed, 15 insertions, 20 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6a938337031..a4f24f5b121 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -112,6 +112,7 @@ config X86
select GENERIC_STRNLEN_USER
select HAVE_CONTEXT_TRACKING if X86_64
select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_VIRT_TO_BUS
select MODULES_USE_ELF_REL if X86_32
select MODULES_USE_ELF_RELA if X86_64
select CLONE_BACKWARDS if X86_32
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index e124554598e..3f06e614998 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -652,7 +652,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
- struct hlist_node *node, *tmp;
+ struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
kprobe_opcode_t *correct_ret_addr = NULL;
@@ -682,7 +682,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
* will be the real return address, and all the rest will
* point to kretprobe_trampoline.
*/
- hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
+ hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
@@ -701,7 +701,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
kretprobe_assert(ri, orig_ret_address, trampoline_address);
correct_ret_addr = ri->ret_addr;
- hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
+ hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
@@ -728,7 +728,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
kretprobe_hash_unlock(current, &flags);
- hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 4ed3edbe06b..956ca358108 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1644,13 +1644,13 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp,
static void kvm_mmu_commit_zap_page(struct kvm *kvm,
struct list_head *invalid_list);
-#define for_each_gfn_sp(kvm, sp, gfn, pos) \
- hlist_for_each_entry(sp, pos, \
+#define for_each_gfn_sp(kvm, sp, gfn) \
+ hlist_for_each_entry(sp, \
&(kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)], hash_link) \
if ((sp)->gfn != (gfn)) {} else
-#define for_each_gfn_indirect_valid_sp(kvm, sp, gfn, pos) \
- hlist_for_each_entry(sp, pos, \
+#define for_each_gfn_indirect_valid_sp(kvm, sp, gfn) \
+ hlist_for_each_entry(sp, \
&(kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)], hash_link) \
if ((sp)->gfn != (gfn) || (sp)->role.direct || \
(sp)->role.invalid) {} else
@@ -1706,11 +1706,10 @@ static int kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
static void kvm_sync_pages(struct kvm_vcpu *vcpu, gfn_t gfn)
{
struct kvm_mmu_page *s;
- struct hlist_node *node;
LIST_HEAD(invalid_list);
bool flush = false;
- for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn, node) {
+ for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn) {
if (!s->unsync)
continue;
@@ -1848,7 +1847,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
union kvm_mmu_page_role role;
unsigned quadrant;
struct kvm_mmu_page *sp;
- struct hlist_node *node;
bool need_sync = false;
role = vcpu->arch.mmu.base_role;
@@ -1863,7 +1861,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;
role.quadrant = quadrant;
}
- for_each_gfn_sp(vcpu->kvm, sp, gfn, node) {
+ for_each_gfn_sp(vcpu->kvm, sp, gfn) {
if (!need_sync && sp->unsync)
need_sync = true;
@@ -2151,14 +2149,13 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int goal_nr_mmu_pages)
int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
{
struct kvm_mmu_page *sp;
- struct hlist_node *node;
LIST_HEAD(invalid_list);
int r;
pgprintk("%s: looking for gfn %llx\n", __func__, gfn);
r = 0;
spin_lock(&kvm->mmu_lock);
- for_each_gfn_indirect_valid_sp(kvm, sp, gfn, node) {
+ for_each_gfn_indirect_valid_sp(kvm, sp, gfn) {
pgprintk("%s: gfn %llx role %x\n", __func__, gfn,
sp->role.word);
r = 1;
@@ -2288,9 +2285,8 @@ static void __kvm_unsync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
static void kvm_unsync_pages(struct kvm_vcpu *vcpu, gfn_t gfn)
{
struct kvm_mmu_page *s;
- struct hlist_node *node;
- for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn, node) {
+ for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn) {
if (s->unsync)
continue;
WARN_ON(s->role.level != PT_PAGE_TABLE_LEVEL);
@@ -2302,10 +2298,9 @@ static int mmu_need_write_protect(struct kvm_vcpu *vcpu, gfn_t gfn,
bool can_unsync)
{
struct kvm_mmu_page *s;
- struct hlist_node *node;
bool need_unsync = false;
- for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn, node) {
+ for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn) {
if (!can_unsync)
return 1;
@@ -3933,7 +3928,6 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
gfn_t gfn = gpa >> PAGE_SHIFT;
union kvm_mmu_page_role mask = { .word = 0 };
struct kvm_mmu_page *sp;
- struct hlist_node *node;
LIST_HEAD(invalid_list);
u64 entry, gentry, *spte;
int npte;
@@ -3964,7 +3958,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
mask.cr0_wp = mask.cr4_pae = mask.nxe = 1;
- for_each_gfn_indirect_valid_sp(vcpu->kvm, sp, gfn, node) {
+ for_each_gfn_indirect_valid_sp(vcpu->kvm, sp, gfn) {
if (detect_write_misaligned(sp, gpa, bytes) ||
detect_write_flooding(sp)) {
zap_page |= !!kvm_mmu_prepare_zap_page(vcpu->kvm, sp,