Re: Linux 2.6.31.1

From: Greg KH
Date: Thu Sep 24 2009 - 13:41:26 EST

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diff --git a/Makefile b/Makefile
index 60de4ef..ea8734a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 31
-EXTRAVERSION =
+EXTRAVERSION = .1
NAME = Man-Eating Seals of Antiquity

# *DOCUMENTATION*
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index a34954d..73cae57 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -40,11 +40,16 @@ void *kmap_atomic(struct page *page, enum km_type type)
{
unsigned int idx;
unsigned long vaddr;
+ void *kmap;

pagefault_disable();
if (!PageHighMem(page))
return page_address(page);

+ kmap = kmap_high_get(page);
+ if (kmap)
+ return kmap;
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -80,6 +85,9 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
#else
(void) idx; /* to kill a warning */
#endif
+ } else if (vaddr >= PKMAP_ADDR(0) && vaddr < PKMAP_ADDR(LAST_PKMAP)) {
+ /* this address was obtained through kmap_high_get() */
+ kunmap_high(pte_page(pkmap_page_table[PKMAP_NR(vaddr)]));
}
pagefault_enable();
}
diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h
index 98c104a..edab67e 100644
--- a/arch/powerpc/include/asm/mmu-hash64.h
+++ b/arch/powerpc/include/asm/mmu-hash64.h
@@ -41,6 +41,7 @@ extern char initial_stab[];

#define SLB_NUM_BOLTED 3
#define SLB_CACHE_ENTRIES 8
+#define SLB_MIN_SIZE 32

/* Bits in the SLB ESID word */
#define SLB_ESID_V ASM_CONST(0x0000000008000000) /* valid */
@@ -296,6 +297,7 @@ extern void slb_flush_and_rebolt(void);
extern void stab_initialize(unsigned long stab);

extern void slb_vmalloc_update(void);
+extern void slb_set_size(u16 size);
#endif /* __ASSEMBLY__ */

/*
diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h
index d6a616a..ccc68b5 100644
--- a/arch/powerpc/include/asm/pmc.h
+++ b/arch/powerpc/include/asm/pmc.h
@@ -27,10 +27,22 @@ extern perf_irq_t perf_irq;

int reserve_pmc_hardware(perf_irq_t new_perf_irq);
void release_pmc_hardware(void);
+void ppc_enable_pmcs(void);

#ifdef CONFIG_PPC64
-void power4_enable_pmcs(void);
-void pasemi_enable_pmcs(void);
+#include <asm/lppaca.h>
+
+static inline void ppc_set_pmu_inuse(int inuse)
+{
+ get_lppaca()->pmcregs_in_use = inuse;
+}
+
+extern void power4_enable_pmcs(void);
+
+#else /* CONFIG_PPC64 */
+
+static inline void ppc_set_pmu_inuse(int inuse) { }
+
#endif

#endif /* __KERNEL__ */
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 2419cc7..ed0ac4e 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -35,6 +35,7 @@
#include <asm/prom.h>
#include <asm/vdso_datapage.h>
#include <asm/vio.h>
+#include <asm/mmu.h>

#define MODULE_VERS "1.8"
#define MODULE_NAME "lparcfg"
@@ -537,6 +538,8 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v)

seq_printf(m, "shared_processor_mode=%d\n", lppaca[0].shared_proc);

+ seq_printf(m, "slb_size=%d\n", mmu_slb_size);
+
return 0;
}

diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c
index 70e1f57..7ceefaf 100644
--- a/arch/powerpc/kernel/perf_counter.c
+++ b/arch/powerpc/kernel/perf_counter.c
@@ -32,6 +32,9 @@ struct cpu_hw_counters {
unsigned long mmcr[3];
struct perf_counter *limited_counter[MAX_LIMITED_HWCOUNTERS];
u8 limited_hwidx[MAX_LIMITED_HWCOUNTERS];
+ u64 alternatives[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES];
+ unsigned long amasks[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES];
+ unsigned long avalues[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES];
};
DEFINE_PER_CPU(struct cpu_hw_counters, cpu_hw_counters);

@@ -62,7 +65,6 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
{
return 0;
}
-static inline void perf_set_pmu_inuse(int inuse) { }
static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp) { }
static inline u32 perf_get_misc_flags(struct pt_regs *regs)
{
@@ -93,11 +95,6 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
return 0;
}

-static inline void perf_set_pmu_inuse(int inuse)
-{
- get_lppaca()->pmcregs_in_use = inuse;
-}
-
/*
* The user wants a data address recorded.
* If we're not doing instruction sampling, give them the SDAR
@@ -245,13 +242,11 @@ static void write_pmc(int idx, unsigned long val)
* and see if any combination of alternative codes is feasible.
* The feasible set is returned in event[].
*/
-static int power_check_constraints(u64 event[], unsigned int cflags[],
+static int power_check_constraints(struct cpu_hw_counters *cpuhw,
+ u64 event[], unsigned int cflags[],
int n_ev)
{
unsigned long mask, value, nv;
- u64 alternatives[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES];
- unsigned long amasks[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES];
- unsigned long avalues[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES];
unsigned long smasks[MAX_HWCOUNTERS], svalues[MAX_HWCOUNTERS];
int n_alt[MAX_HWCOUNTERS], choice[MAX_HWCOUNTERS];
int i, j;
@@ -266,21 +261,23 @@ static int power_check_constraints(u64 event[], unsigned int cflags[],
if ((cflags[i] & PPMU_LIMITED_PMC_REQD)
&& !ppmu->limited_pmc_event(event[i])) {
ppmu->get_alternatives(event[i], cflags[i],
- alternatives[i]);
- event[i] = alternatives[i][0];
+ cpuhw->alternatives[i]);
+ event[i] = cpuhw->alternatives[i][0];
}
- if (ppmu->get_constraint(event[i], &amasks[i][0],
- &avalues[i][0]))
+ if (ppmu->get_constraint(event[i], &cpuhw->amasks[i][0],
+ &cpuhw->avalues[i][0]))
return -1;
}
value = mask = 0;
for (i = 0; i < n_ev; ++i) {
- nv = (value | avalues[i][0]) + (value & avalues[i][0] & addf);
+ nv = (value | cpuhw->avalues[i][0]) +
+ (value & cpuhw->avalues[i][0] & addf);
if ((((nv + tadd) ^ value) & mask) != 0 ||
- (((nv + tadd) ^ avalues[i][0]) & amasks[i][0]) != 0)
+ (((nv + tadd) ^ cpuhw->avalues[i][0]) &
+ cpuhw->amasks[i][0]) != 0)
break;
value = nv;
- mask |= amasks[i][0];
+ mask |= cpuhw->amasks[i][0];
}
if (i == n_ev)
return 0; /* all OK */
@@ -291,10 +288,11 @@ static int power_check_constraints(u64 event[], unsigned int cflags[],
for (i = 0; i < n_ev; ++i) {
choice[i] = 0;
n_alt[i] = ppmu->get_alternatives(event[i], cflags[i],
- alternatives[i]);
+ cpuhw->alternatives[i]);
for (j = 1; j < n_alt[i]; ++j)
- ppmu->get_constraint(alternatives[i][j],
- &amasks[i][j], &avalues[i][j]);
+ ppmu->get_constraint(cpuhw->alternatives[i][j],
+ &cpuhw->amasks[i][j],
+ &cpuhw->avalues[i][j]);
}

/* enumerate all possibilities and see if any will work */
@@ -313,11 +311,11 @@ static int power_check_constraints(u64 event[], unsigned int cflags[],
* where k > j, will satisfy the constraints.
*/
while (++j < n_alt[i]) {
- nv = (value | avalues[i][j]) +
- (value & avalues[i][j] & addf);
+ nv = (value | cpuhw->avalues[i][j]) +
+ (value & cpuhw->avalues[i][j] & addf);
if ((((nv + tadd) ^ value) & mask) == 0 &&
- (((nv + tadd) ^ avalues[i][j])
- & amasks[i][j]) == 0)
+ (((nv + tadd) ^ cpuhw->avalues[i][j])
+ & cpuhw->amasks[i][j]) == 0)
break;
}
if (j >= n_alt[i]) {
@@ -339,7 +337,7 @@ static int power_check_constraints(u64 event[], unsigned int cflags[],
svalues[i] = value;
smasks[i] = mask;
value = nv;
- mask |= amasks[i][j];
+ mask |= cpuhw->amasks[i][j];
++i;
j = -1;
}
@@ -347,7 +345,7 @@ static int power_check_constraints(u64 event[], unsigned int cflags[],

/* OK, we have a feasible combination, tell the caller the solution */
for (i = 0; i < n_ev; ++i)
- event[i] = alternatives[i][choice[i]];
+ event[i] = cpuhw->alternatives[i][choice[i]];
return 0;
}

@@ -531,8 +529,7 @@ void hw_perf_disable(void)
* Check if we ever enabled the PMU on this cpu.
*/
if (!cpuhw->pmcs_enabled) {
- if (ppc_md.enable_pmcs)
- ppc_md.enable_pmcs();
+ ppc_enable_pmcs();
cpuhw->pmcs_enabled = 1;
}

@@ -594,7 +591,7 @@ void hw_perf_enable(void)
mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE);
mtspr(SPRN_MMCR1, cpuhw->mmcr[1]);
if (cpuhw->n_counters == 0)
- perf_set_pmu_inuse(0);
+ ppc_set_pmu_inuse(0);
goto out_enable;
}

@@ -627,7 +624,7 @@ void hw_perf_enable(void)
* bit set and set the hardware counters to their initial values.
* Then unfreeze the counters.
*/
- perf_set_pmu_inuse(1);
+ ppc_set_pmu_inuse(1);
mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE);
mtspr(SPRN_MMCR1, cpuhw->mmcr[1]);
mtspr(SPRN_MMCR0, (cpuhw->mmcr[0] & ~(MMCR0_PMC1CE | MMCR0_PMCjCE))
@@ -752,7 +749,7 @@ int hw_perf_group_sched_in(struct perf_counter *group_leader,
return -EAGAIN;
if (check_excludes(cpuhw->counter, cpuhw->flags, n0, n))
return -EAGAIN;
- i = power_check_constraints(cpuhw->events, cpuhw->flags, n + n0);
+ i = power_check_constraints(cpuhw, cpuhw->events, cpuhw->flags, n + n0);
if (i < 0)
return -EAGAIN;
cpuhw->n_counters = n0 + n;
@@ -807,7 +804,7 @@ static int power_pmu_enable(struct perf_counter *counter)
cpuhw->flags[n0] = counter->hw.counter_base;
if (check_excludes(cpuhw->counter, cpuhw->flags, n0, 1))
goto out;
- if (power_check_constraints(cpuhw->events, cpuhw->flags, n0 + 1))
+ if (power_check_constraints(cpuhw, cpuhw->events, cpuhw->flags, n0 + 1))
goto out;

counter->hw.config = cpuhw->events[n0];
@@ -1012,6 +1009,7 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
unsigned int cflags[MAX_HWCOUNTERS];
int n;
int err;
+ struct cpu_hw_counters *cpuhw;

if (!ppmu)
return ERR_PTR(-ENXIO);
@@ -1090,7 +1088,11 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
cflags[n] = flags;
if (check_excludes(ctrs, cflags, n, 1))
return ERR_PTR(-EINVAL);
- if (power_check_constraints(events, cflags, n + 1))
+
+ cpuhw = &get_cpu_var(cpu_hw_counters);
+ err = power_check_constraints(cpuhw, events, cflags, n + 1);
+ put_cpu_var(cpu_hw_counters);
+ if (err)
return ERR_PTR(-EINVAL);

counter->hw.config = events[n];
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index c434823..bf90361 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -39,6 +39,7 @@
#include <asm/smp.h>
#include <asm/atomic.h>
#include <asm/time.h>
+#include <asm/mmu.h>

struct rtas_t rtas = {
.lock = __RAW_SPIN_LOCK_UNLOCKED
@@ -713,6 +714,7 @@ static void rtas_percpu_suspend_me(void *info)
{
long rc = H_SUCCESS;
unsigned long msr_save;
+ u16 slb_size = mmu_slb_size;
int cpu;
struct rtas_suspend_me_data *data =
(struct rtas_suspend_me_data *)info;
@@ -735,13 +737,16 @@ static void rtas_percpu_suspend_me(void *info)
/* All other cpus are in H_JOIN, this cpu does
* the suspend.
*/
+ slb_set_size(SLB_MIN_SIZE);
printk(KERN_DEBUG "calling ibm,suspend-me on cpu %i\n",
smp_processor_id());
data->error = rtas_call(data->token, 0, 1, NULL);

- if (data->error)
+ if (data->error) {
printk(KERN_DEBUG "ibm,suspend-me returned %d\n",
data->error);
+ slb_set_size(slb_size);
+ }
} else {
printk(KERN_ERR "H_JOIN on cpu %i failed with rc = %ld\n",
smp_processor_id(), rc);
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index f41aec8..956ab33 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -17,6 +17,7 @@
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/smp.h>
+#include <asm/pmc.h>

#include "cacheinfo.h"

@@ -123,6 +124,8 @@ static DEFINE_PER_CPU(char, pmcs_enabled);

void ppc_enable_pmcs(void)
{
+ ppc_set_pmu_inuse(1);
+
/* Only need to enable them once */
if (__get_cpu_var(pmcs_enabled))
return;
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 5b7038f..deb6193 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -240,14 +240,22 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm)
static inline void patch_slb_encoding(unsigned int *insn_addr,
unsigned int immed)
{
- /* Assume the instruction had a "0" immediate value, just
- * "or" in the new value
- */
- *insn_addr |= immed;
+ *insn_addr = (*insn_addr & 0xffff0000) | immed;
flush_icache_range((unsigned long)insn_addr, 4+
(unsigned long)insn_addr);
}

+void slb_set_size(u16 size)
+{
+ extern unsigned int *slb_compare_rr_to_size;
+
+ if (mmu_slb_size == size)
+ return;
+
+ mmu_slb_size = size;
+ patch_slb_encoding(slb_compare_rr_to_size, mmu_slb_size);
+}
+
void slb_initialize(void)
{
unsigned long linear_llp, vmalloc_llp, io_llp;
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index b6f1b13..2e2bbe1 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -20,6 +20,7 @@
#include <asm/machdep.h>
#include <asm/uaccess.h>
#include <asm/pSeries_reconfig.h>
+#include <asm/mmu.h>

@@ -439,9 +440,15 @@ static int do_update_property(char *buf, size_t bufsize)
if (!newprop)
return -ENOMEM;

+ if (!strcmp(name, "slb-size") || !strcmp(name, "ibm,slb-size"))
+ slb_set_size(*(int *)value);
+
oldprop = of_find_property(np, name,NULL);
- if (!oldprop)
+ if (!oldprop) {
+ if (strlen(name))
+ return prom_add_property(np, newprop);
return -ENODEV;
+ }

rc = prom_update_property(np, newprop, oldprop);
if (rc)
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8d75ea2..ca5f2e1 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -223,10 +223,6 @@ static void pseries_lpar_enable_pmcs(void)
set = 1UL << 63;
reset = 0;
plpar_hcall_norets(H_PERFMON, set, reset);
-
- /* instruct hypervisor to maintain PMCs */
- if (firmware_has_feature(FW_FEATURE_SPLPAR))
- get_lppaca()->pmcregs_in_use = 1;
}

static void __init pseries_discover_pic(void)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index eabdc1c..68d16d2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -618,6 +618,7 @@ void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
u32 error_code);
+bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);

int kvm_pic_set_irq(void *opaque, int irq, int level);

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index c776826..e597ecc 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -403,7 +403,17 @@ extern unsigned long kernel_eflags;
extern asmlinkage void ignore_sysret(void);
#else /* X86_64 */
#ifdef CONFIG_CC_STACKPROTECTOR
-DECLARE_PER_CPU(unsigned long, stack_canary);
+/*
+ * Make sure stack canary segment base is cached-aligned:
+ * "For Intel Atom processors, avoid non zero segment base address
+ * that is not aligned to cache line boundary at all cost."
+ * (Optim Ref Manual Assembly/Compiler Coding Rule 15.)
+ */
+struct stack_canary {
+ char __pad[20]; /* canary at %gs:20 */
+ unsigned long canary;
+};
+DECLARE_PER_CPU(struct stack_canary, stack_canary) ____cacheline_aligned;
#endif
#endif /* X86_64 */

diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index c2d742c..decad97 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -78,14 +78,14 @@ static __always_inline void boot_init_stack_canary(void)
#ifdef CONFIG_X86_64
percpu_write(irq_stack_union.stack_canary, canary);
#else
- percpu_write(stack_canary, canary);
+ percpu_write(stack_canary.canary, canary);
#endif
}

static inline void setup_stack_canary_segment(int cpu)
{
#ifdef CONFIG_X86_32
- unsigned long canary = (unsigned long)&per_cpu(stack_canary, cpu) - 20;
+ unsigned long canary = (unsigned long)&per_cpu(stack_canary, cpu);
struct desc_struct *gdt_table = get_cpu_gdt_table(cpu);
struct desc_struct desc;

diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index 643c59b..5bd119b 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -31,7 +31,7 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
"movl %P[task_canary](%[next]), %%ebx\n\t" \
"movl %%ebx, "__percpu_arg([stack_canary])"\n\t"
#define __switch_canary_oparam \
- , [stack_canary] "=m" (per_cpu_var(stack_canary))
+ , [stack_canary] "=m" (per_cpu_var(stack_canary.canary))
#define __switch_canary_iparam \
, [task_canary] "i" (offsetof(struct task_struct, stack_canary))
#else /* CC_STACKPROTECTOR */
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 6c99f50..4607241 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -485,8 +485,6 @@ void amd_iommu_flush_all_devices(void)
int i;

for (i = 0; i <= amd_iommu_last_bdf; ++i) {
- if (amd_iommu_pd_table[i] == NULL)
- continue;

iommu = amd_iommu_rlookup_table[i];
if (!iommu)
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 8952a58..89174f8 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -167,7 +167,7 @@ static int es7000_apic_is_cluster(void)
{
/* MPENTIUMIII */
if (boot_cpu_data.x86 == 6 &&
- (boot_cpu_data.x86_model >= 7 || boot_cpu_data.x86_model <= 11))
+ (boot_cpu_data.x86_model >= 7 && boot_cpu_data.x86_model <= 11))
return 1;

return 0;
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 5ce60a8..e338b5c 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1043,7 +1043,7 @@ DEFINE_PER_CPU(struct orig_ist, orig_ist);
#else /* CONFIG_X86_64 */

#ifdef CONFIG_CC_STACKPROTECTOR
-DEFINE_PER_CPU(unsigned long, stack_canary);
+DEFINE_PER_CPU(struct stack_canary, stack_canary) ____cacheline_aligned;
#endif

/* Make sure %fs and %gs are initialized properly in idle threads */
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index cc827ac..7ffec6b 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -439,7 +439,6 @@ is386: movl $2,%ecx # set MP
jne 1f
movl $per_cpu__gdt_page,%eax
movl $per_cpu__stack_canary,%ecx
- subl $20, %ecx
movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
shrl $16, %ecx
movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index c664d51..63b0ec8 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -34,7 +34,6 @@
struct kvm_para_state {
u8 mmu_queue[MMU_QUEUE_SIZE];
int mmu_queue_len;
- enum paravirt_lazy_mode mode;
};

static DEFINE_PER_CPU(struct kvm_para_state, para_state);
@@ -77,7 +76,7 @@ static void kvm_deferred_mmu_op(void *buffer, int len)
{
struct kvm_para_state *state = kvm_para_state();

- if (state->mode != PARAVIRT_LAZY_MMU) {
+ if (paravirt_get_lazy_mode() != PARAVIRT_LAZY_MMU) {
kvm_mmu_op(buffer, len);
return;
}
@@ -185,10 +184,7 @@ static void kvm_release_pt(unsigned long pfn)

static void kvm_enter_lazy_mmu(void)
{
- struct kvm_para_state *state = kvm_para_state();
-
paravirt_enter_lazy_mmu();
- state->mode = paravirt_get_lazy_mode();
}

static void kvm_leave_lazy_mmu(void)
@@ -197,7 +193,6 @@ static void kvm_leave_lazy_mmu(void)

mmu_queue_flush(state);
paravirt_leave_lazy_mmu();
- state->mode = paravirt_get_lazy_mode();
}

static void __init paravirt_ops_setup(void)
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 223af43..e5efcdc 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -50,8 +50,8 @@ static unsigned long kvm_get_wallclock(void)
struct timespec ts;
int low, high;

- low = (int)__pa(&wall_clock);
- high = ((u64)__pa(&wall_clock) >> 32);
+ low = (int)__pa_symbol(&wall_clock);
+ high = ((u64)__pa_symbol(&wall_clock) >> 32);
native_write_msr(MSR_KVM_WALL_CLOCK, low, high);

vcpu_time = &get_cpu_var(hv_clock);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index ae99d83..bb6277d 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -573,6 +573,15 @@ static void start_apic_timer(struct kvm_lapic *apic)

if (!apic->lapic_timer.period)
return;
+ /*
+ * Do not allow the guest to program periodic timers with small
+ * interval, since the hrtimers are not throttled by the host
+ * scheduler.
+ */
+ if (apic_lvtt_period(apic)) {
+ if (apic->lapic_timer.period < NSEC_PER_MSEC/2)
+ apic->lapic_timer.period = NSEC_PER_MSEC/2;
+ }

hrtimer_start(&apic->lapic_timer.timer,
ktime_add_ns(now, apic->lapic_timer.period),
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0ef5bb2..a5cdb35 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2633,7 +2633,8 @@ EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page_virt);

void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
{
- while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES) {
+ while (vcpu->kvm->arch.n_free_mmu_pages < KVM_REFILL_PAGES &&
+ !list_empty(&vcpu->kvm->arch.active_mmu_pages)) {
struct kvm_mmu_page *sp;

sp = container_of(vcpu->kvm->arch.active_mmu_pages.prev,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 29f9129..b5fa966 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1217,12 +1217,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
if (_cpu_based_2nd_exec_control & SECONDARY_EXEC_ENABLE_EPT) {
/* CR3 accesses and invlpg don't need to cause VM Exits when EPT
enabled */
- min &= ~(CPU_BASED_CR3_LOAD_EXITING |
- CPU_BASED_CR3_STORE_EXITING |
- CPU_BASED_INVLPG_EXITING);
- if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS,
- &_cpu_based_exec_control) < 0)
- return -EIO;
+ _cpu_based_exec_control &= ~(CPU_BASED_CR3_LOAD_EXITING |
+ CPU_BASED_CR3_STORE_EXITING |
+ CPU_BASED_INVLPG_EXITING);
rdmsr(MSR_IA32_VMX_EPT_VPID_CAP,
vmx_capability.ept, vmx_capability.vpid);
}
@@ -2841,6 +2838,8 @@ static int handle_dr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
unsigned long val;
int dr, reg;

+ if (!kvm_require_cpl(vcpu, 0))
+ return 1;
dr = vmcs_readl(GUEST_DR7);
if (dr & DR7_GD) {
/*
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3d45290..3d36045 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -215,6 +215,19 @@ static void __queue_exception(struct kvm_vcpu *vcpu)
}

/*
+ * Checks if cpl <= required_cpl; if true, return true. Otherwise queue
+ * a #GP and return false.
+ */
+bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl)
+{
+ if (kvm_x86_ops->get_cpl(vcpu) <= required_cpl)
+ return true;
+ kvm_queue_exception_e(vcpu, GP_VECTOR, 0);
+ return false;
+}
+EXPORT_SYMBOL_GPL(kvm_require_cpl);
+
+/*
* Load the pae pdptrs. Return true is they are all valid.
*/
int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
@@ -2898,6 +2911,11 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
a3 &= 0xFFFFFFFF;
}

+ if (kvm_x86_ops->get_cpl(vcpu) != 0) {
+ ret = -KVM_EPERM;
+ goto out;
+ }
+
switch (nr) {
case KVM_HC_VAPIC_POLL_IRQ:
ret = 0;
@@ -2909,6 +2927,7 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
ret = -KVM_ENOSYS;
break;
}
+out:
kvm_register_write(vcpu, VCPU_REGS_RAX, ret);
++vcpu->stat.hypercalls;
return r;
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 616de46..ef4dfca 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -60,6 +60,7 @@
#define SrcImmByte (6<<4) /* 8-bit sign-extended immediate operand. */
#define SrcOne (7<<4) /* Implied '1' */
#define SrcImmUByte (8<<4) /* 8-bit unsigned immediate operand. */
+#define SrcImmU (9<<4) /* Immediate operand, unsigned */
#define SrcMask (0xf<<4)
/* Generic ModRM decode. */
#define ModRM (1<<8)
@@ -195,7 +196,7 @@ static u32 opcode_table[256] = {
ByteOp | SrcImmUByte, SrcImmUByte,
/* 0xE8 - 0xEF */
SrcImm | Stack, SrcImm | ImplicitOps,
- SrcImm | Src2Imm16, SrcImmByte | ImplicitOps,
+ SrcImmU | Src2Imm16, SrcImmByte | ImplicitOps,
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
/* 0xF0 - 0xF7 */
@@ -1027,6 +1028,7 @@ done_prefixes:
c->src.type = OP_MEM;
break;
case SrcImm:
+ case SrcImmU:
c->src.type = OP_IMM;
c->src.ptr = (unsigned long *)c->eip;
c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;
@@ -1044,6 +1046,19 @@ done_prefixes:
c->src.val = insn_fetch(s32, 4, c->eip);
break;
}
+ if ((c->d & SrcMask) == SrcImmU) {
+ switch (c->src.bytes) {
+ case 1:
+ c->src.val &= 0xff;
+ break;
+ case 2:
+ c->src.val &= 0xffff;
+ break;
+ case 4:
+ c->src.val &= 0xffffffff;
+ break;
+ }
+ }
break;
case SrcImmByte:
case SrcImmUByte:
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 7e600c1..e245775 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -822,6 +822,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
{
struct cpa_data cpa;
int ret, cache, checkalias;
+ unsigned long baddr = 0;

/*
* Check, if we are requested to change a not supported
@@ -853,6 +854,11 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
*/
WARN_ON_ONCE(1);
}
+ /*
+ * Save address for cache flush. *addr is modified in the call
+ * to __change_page_attr_set_clr() below.
+ */
+ baddr = *addr;
}

/* Must avoid aliasing mappings in the highmem code */
@@ -900,7 +906,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
cpa_flush_array(addr, numpages, cache,
cpa.flags, pages);
} else
- cpa_flush_range(*addr, numpages, cache);
+ cpa_flush_range(baddr, numpages, cache);
} else
cpa_flush_all(cache);

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index d3aa2aa..b78c9c3 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -40,7 +40,12 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count)
{
struct request_list *rl = &q->rq;
unsigned long nr;
- int ret = queue_var_store(&nr, page, count);
+ int ret;
+
+ if (!q->request_fn)
+ return -EINVAL;
+
+ ret = queue_var_store(&nr, page, count);
if (nr < BLKDEV_MIN_RQ)
nr = BLKDEV_MIN_RQ;

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 072ba5e..e71149b 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -709,7 +709,13 @@ u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev)
head = tf->device & 0xf;
sect = tf->lbal;

- block = (cyl * dev->heads + head) * dev->sectors + sect;
+ if (!sect) {
+ ata_dev_printk(dev, KERN_WARNING, "device reported "
+ "invalid CHS sector 0\n");
+ sect = 1; /* oh well */
+ }
+
+ block = (cyl * dev->heads + head) * dev->sectors + sect - 1;
}

return block;
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index c585577..dee0f1f 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -2313,15 +2313,6 @@ static int agp_intel_resume(struct pci_dev *pdev)
struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
int ret_val;

- pci_restore_state(pdev);
-
- /* We should restore our graphics device's config space,
- * as host bridge (00:00) resumes before graphics device (02:00),
- * then our access to its pci space can work right.
- */
- if (intel_private.pcidev)
- pci_restore_state(intel_private.pcidev);
-
if (bridge->driver == &intel_generic_driver)
intel_configure();
else if (bridge->driver == &intel_850_driver)
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index aec1931..0b73e4e 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -450,6 +450,12 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
goto out_err;
}

+ /* Default timeouts */
+ chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+ chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
+ chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+ chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+
if (request_locality(chip, 0) != 0) {
rc = -ENODEV;
goto out_err;
@@ -457,12 +463,6 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,

vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));

- /* Default timeouts */
- chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
- chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
- chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
- chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
-
dev_info(dev,
"1.2 TPM (device-id 0x%X, rev-id %d)\n",
vendor >> 16, ioread8(chip->vendor.iobase + TPM_RID(0)));
diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c
index 6e186b1..652bd33 100644
--- a/drivers/md/dm-log-userspace-base.c
+++ b/drivers/md/dm-log-userspace-base.c
@@ -582,7 +582,7 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type,
break;
case STATUSTYPE_TABLE:
sz = 0;
- table_args = strstr(lc->usr_argv_str, " ");
+ table_args = strchr(lc->usr_argv_str, ' ');
BUG_ON(!table_args); /* There will always be a ' ' */
table_args++;

diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index b9ceddd..4ff665c 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -526,48 +526,6 @@ static void mlx4_unmap_clr_int(struct mlx4_dev *dev)
iounmap(priv->clr_base);
}

-int mlx4_map_eq_icm(struct mlx4_dev *dev, u64 icm_virt)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int ret;
-
- /*
- * We assume that mapping one page is enough for the whole EQ
- * context table. This is fine with all current HCAs, because
- * we only use 32 EQs and each EQ uses 64 bytes of context
- * memory, or 1 KB total.
- */
- priv->eq_table.icm_virt = icm_virt;
- priv->eq_table.icm_page = alloc_page(GFP_HIGHUSER);
- if (!priv->eq_table.icm_page)
- return -ENOMEM;
- priv->eq_table.icm_dma = pci_map_page(dev->pdev, priv->eq_table.icm_page, 0,
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(dev->pdev, priv->eq_table.icm_dma)) {
- __free_page(priv->eq_table.icm_page);
- return -ENOMEM;
- }
-
- ret = mlx4_MAP_ICM_page(dev, priv->eq_table.icm_dma, icm_virt);
- if (ret) {
- pci_unmap_page(dev->pdev, priv->eq_table.icm_dma, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
- __free_page(priv->eq_table.icm_page);
- }
-
- return ret;
-}
-
-void mlx4_unmap_eq_icm(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- mlx4_UNMAP_ICM(dev, priv->eq_table.icm_virt, 1);
- pci_unmap_page(dev->pdev, priv->eq_table.icm_dma, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
- __free_page(priv->eq_table.icm_page);
-}
-
int mlx4_alloc_eq_table(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index dac621b..8e8b79f 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -525,7 +525,10 @@ static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
goto err_unmap_aux;
}

- err = mlx4_map_eq_icm(dev, init_hca->eqc_base);
+ err = mlx4_init_icm_table(dev, &priv->eq_table.table,
+ init_hca->eqc_base, dev_cap->eqc_entry_sz,
+ dev->caps.num_eqs, dev->caps.num_eqs,
+ 0, 0);
if (err) {
mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
goto err_unmap_cmpt;
@@ -668,7 +671,7 @@ err_unmap_mtt:
mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);

err_unmap_eq:
- mlx4_unmap_eq_icm(dev);
+ mlx4_cleanup_icm_table(dev, &priv->eq_table.table);

err_unmap_cmpt:
mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
@@ -698,11 +701,11 @@ static void mlx4_free_icms(struct mlx4_dev *dev)
mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
+ mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
- mlx4_unmap_eq_icm(dev);

mlx4_UNMAP_ICM_AUX(dev);
mlx4_free_icm(dev, priv->fw.aux_icm, 0);
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index 5bd79c2..bc72d6e 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -205,9 +205,7 @@ struct mlx4_eq_table {
void __iomem **uar_map;
u32 clr_mask;
struct mlx4_eq *eq;
- u64 icm_virt;
- struct page *icm_page;
- dma_addr_t icm_dma;
+ struct mlx4_icm_table table;
struct mlx4_icm_table cmpt_table;
int have_irq;
u8 inta_pin;
@@ -373,9 +371,6 @@ u64 mlx4_make_profile(struct mlx4_dev *dev,
struct mlx4_dev_cap *dev_cap,
struct mlx4_init_hca_param *init_hca);

-int mlx4_map_eq_icm(struct mlx4_dev *dev, u64 icm_virt);
-void mlx4_unmap_eq_icm(struct mlx4_dev *dev);
-
int mlx4_cmd_init(struct mlx4_dev *dev);
void mlx4_cmd_cleanup(struct mlx4_dev *dev);
void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 029c1bc..ba6d225 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2676,7 +2676,7 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan)
sc->curchan = chan;
sc->curband = &sc->sbands[chan->band];
}
- ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, true);
+ ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, chan != NULL);
if (ret) {
ATH5K_ERR(sc, "can't reset hardware (%d)\n", ret);
goto err;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 06b9656..1073137 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1201,6 +1201,7 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
switch(dev->subsystem_device) {
case 0x00b8: /* Compaq Evo D510 CMT */
case 0x00b9: /* Compaq Evo D510 SFF */
+ case 0x00ba: /* Compaq Evo D510 USDT */
/* Motherboard doesn't have Host bridge
* subvendor/subdevice IDs and on-board VGA
* controller is disabled if an AGP card is
@@ -2382,8 +2383,10 @@ static void __devinit nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
}

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);

static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
{
@@ -2492,6 +2495,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e6, quirk_i82576_sriov);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e7, quirk_i82576_sriov);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e8, quirk_i82576_sriov);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150a, quirk_i82576_sriov);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150d, quirk_i82576_sriov);

#endif /* CONFIG_PCI_IOV */

diff --git a/drivers/ps3/ps3stor_lib.c b/drivers/ps3/ps3stor_lib.c
index 18066d5..af0afa1 100644
--- a/drivers/ps3/ps3stor_lib.c
+++ b/drivers/ps3/ps3stor_lib.c
@@ -23,6 +23,65 @@
#include <asm/lv1call.h>
#include <asm/ps3stor.h>

+/*
+ * A workaround for flash memory I/O errors when the internal hard disk
+ * has not been formatted for OtherOS use. Delay disk close until flash
+ * memory is closed.
+ */
+
+static struct ps3_flash_workaround {
+ int flash_open;
+ int disk_open;
+ struct ps3_system_bus_device *disk_sbd;
+} ps3_flash_workaround;
+
+static int ps3stor_open_hv_device(struct ps3_system_bus_device *sbd)
+{
+ int error = ps3_open_hv_device(sbd);
+
+ if (error)
+ return error;
+
+ if (sbd->match_id == PS3_MATCH_ID_STOR_FLASH)
+ ps3_flash_workaround.flash_open = 1;
+
+ if (sbd->match_id == PS3_MATCH_ID_STOR_DISK)
+ ps3_flash_workaround.disk_open = 1;
+
+ return 0;
+}
+
+static int ps3stor_close_hv_device(struct ps3_system_bus_device *sbd)
+{
+ int error;
+
+ if (sbd->match_id == PS3_MATCH_ID_STOR_DISK
+ && ps3_flash_workaround.disk_open
+ && ps3_flash_workaround.flash_open) {
+ ps3_flash_workaround.disk_sbd = sbd;
+ return 0;
+ }
+
+ error = ps3_close_hv_device(sbd);
+
+ if (error)
+ return error;
+
+ if (sbd->match_id == PS3_MATCH_ID_STOR_DISK)
+ ps3_flash_workaround.disk_open = 0;
+
+ if (sbd->match_id == PS3_MATCH_ID_STOR_FLASH) {
+ ps3_flash_workaround.flash_open = 0;
+
+ if (ps3_flash_workaround.disk_sbd) {
+ ps3_close_hv_device(ps3_flash_workaround.disk_sbd);
+ ps3_flash_workaround.disk_open = 0;
+ ps3_flash_workaround.disk_sbd = NULL;
+ }
+ }
+
+ return 0;
+}

static int ps3stor_probe_access(struct ps3_storage_device *dev)
{
@@ -90,7 +149,7 @@ int ps3stor_setup(struct ps3_storage_device *dev, irq_handler_t handler)
int error, res, alignment;
enum ps3_dma_page_size page_size;

- error = ps3_open_hv_device(&dev->sbd);
+ error = ps3stor_open_hv_device(&dev->sbd);
if (error) {
dev_err(&dev->sbd.core,
"%s:%u: ps3_open_hv_device failed %d\n", __func__,
@@ -166,7 +225,7 @@ fail_free_irq:
fail_sb_event_receive_port_destroy:
ps3_sb_event_receive_port_destroy(&dev->sbd, dev->irq);
fail_close_device:
- ps3_close_hv_device(&dev->sbd);
+ ps3stor_close_hv_device(&dev->sbd);
fail:
return error;
}
@@ -193,7 +252,7 @@ void ps3stor_teardown(struct ps3_storage_device *dev)
"%s:%u: destroy event receive port failed %d\n",
__func__, __LINE__, error);

- error = ps3_close_hv_device(&dev->sbd);
+ error = ps3stor_close_hv_device(&dev->sbd);
if (error)
dev_err(&dev->sbd.core,
"%s:%u: ps3_close_hv_device failed %d\n", __func__,
diff --git a/drivers/scsi/libsrp.c b/drivers/scsi/libsrp.c
index 2742ae8..9ad38e8 100644
--- a/drivers/scsi/libsrp.c
+++ b/drivers/scsi/libsrp.c
@@ -124,6 +124,7 @@ static void srp_ring_free(struct device *dev, struct srp_buf **ring, size_t max,
dma_free_coherent(dev, size, ring[i]->buf, ring[i]->dma);
kfree(ring[i]);
}
+ kfree(ring);
}

int srp_target_alloc(struct srp_target *target, struct device *dev,
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 35a1386..2e4bc3d 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -94,7 +94,7 @@ _base_fault_reset_work(struct work_struct *work)
int rc;

spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->ioc_reset_in_progress)
+ if (ioc->shost_recovery)
goto rearm_timer;
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

@@ -1542,6 +1542,8 @@ _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
(ioc->bios_pg3.BiosVersion & 0x0000FF00) >> 8,
ioc->bios_pg3.BiosVersion & 0x000000FF);

+ _base_display_dell_branding(ioc);
+
printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);

if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
@@ -1554,8 +1556,6 @@ _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
i++;
}

- _base_display_dell_branding(ioc);
-
i = 0;
printk("), ");
printk("Capabilities=(");
@@ -1627,6 +1627,9 @@ _base_static_config_pages(struct MPT2SAS_ADAPTER *ioc)
u32 iounit_pg1_flags;

mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
+ if (ioc->ir_firmware)
+ mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
+ &ioc->manu_pg10);
mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
@@ -3501,20 +3504,13 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
__func__));

spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->ioc_reset_in_progress) {
+ if (ioc->shost_recovery) {
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
printk(MPT2SAS_ERR_FMT "%s: busy\n",
ioc->name, __func__);
return -EBUSY;
}
- ioc->ioc_reset_in_progress = 1;
ioc->shost_recovery = 1;
- if (ioc->shost->shost_state == SHOST_RUNNING) {
- /* set back to SHOST_RUNNING in mpt2sas_scsih.c */
- scsi_host_set_state(ioc->shost, SHOST_RECOVERY);
- printk(MPT2SAS_INFO_FMT "putting controller into "
- "SHOST_RECOVERY\n", ioc->name);
- }
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

_base_reset_handler(ioc, MPT2_IOC_PRE_RESET);
@@ -3534,7 +3530,10 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));

spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- ioc->ioc_reset_in_progress = 0;
+ ioc->shost_recovery = 0;
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+
+ if (!r)
+ _base_reset_handler(ioc, MPT2_IOC_RUNNING);
return r;
}
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index acdcff1..22f84d3 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -119,6 +119,7 @@
#define MPT2_IOC_PRE_RESET 1 /* prior to host reset */
#define MPT2_IOC_AFTER_RESET 2 /* just after host reset */
#define MPT2_IOC_DONE_RESET 3 /* links re-initialized */
+#define MPT2_IOC_RUNNING 4 /* shost running */

/*
* logging format
@@ -196,6 +197,38 @@ struct MPT2SAS_TARGET {
* @block: device is in SDEV_BLOCK state
* @tlr_snoop_check: flag used in determining whether to disable TLR
*/
+
+/* OEM Identifiers */
+#define MFG10_OEM_ID_INVALID (0x00000000)
+#define MFG10_OEM_ID_DELL (0x00000001)
+#define MFG10_OEM_ID_FSC (0x00000002)
+#define MFG10_OEM_ID_SUN (0x00000003)
+#define MFG10_OEM_ID_IBM (0x00000004)
+
+/* GENERIC Flags 0*/
+#define MFG10_GF0_OCE_DISABLED (0x00000001)
+#define MFG10_GF0_R1E_DRIVE_COUNT (0x00000002)
+#define MFG10_GF0_R10_DISPLAY (0x00000004)
+#define MFG10_GF0_SSD_DATA_SCRUB_DISABLE (0x00000008)
+#define MFG10_GF0_SINGLE_DRIVE_R0 (0x00000010)
+
+/* OEM Specific Flags will come from OEM specific header files */
+typedef struct _MPI2_CONFIG_PAGE_MAN_10 {
+ MPI2_CONFIG_PAGE_HEADER Header; /* 00h */
+ U8 OEMIdentifier; /* 04h */
+ U8 Reserved1; /* 05h */
+ U16 Reserved2; /* 08h */
+ U32 Reserved3; /* 0Ch */
+ U32 GenericFlags0; /* 10h */
+ U32 GenericFlags1; /* 14h */
+ U32 Reserved4; /* 18h */
+ U32 OEMSpecificFlags0; /* 1Ch */
+ U32 OEMSpecificFlags1; /* 20h */
+ U32 Reserved5[18]; /* 24h-60h*/
+} MPI2_CONFIG_PAGE_MAN_10,
+ MPI2_POINTER PTR_MPI2_CONFIG_PAGE_MAN_10,
+ Mpi2ManufacturingPage10_t, MPI2_POINTER pMpi2ManufacturingPage10_t;
+
struct MPT2SAS_DEVICE {
struct MPT2SAS_TARGET *sas_target;
unsigned int lun;
@@ -431,7 +464,7 @@ typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
* @fw_event_list: list of fw events
* @aen_event_read_flag: event log was read
* @broadcast_aen_busy: broadcast aen waiting to be serviced
- * @ioc_reset_in_progress: host reset in progress
+ * @shost_recovery: host reset in progress
* @ioc_reset_in_progress_lock:
* @ioc_link_reset_in_progress: phy/hard reset in progress
* @ignore_loginfos: ignore loginfos during task managment
@@ -460,6 +493,7 @@ typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
* @facts: static facts data
* @pfacts: static port facts data
* @manu_pg0: static manufacturing page 0
+ * @manu_pg10: static manufacturing page 10
* @bios_pg2: static bios page 2
* @bios_pg3: static bios page 3
* @ioc_pg8: static ioc page 8
@@ -544,7 +578,6 @@ struct MPT2SAS_ADAPTER {
/* misc flags */
int aen_event_read_flag;
u8 broadcast_aen_busy;
- u8 ioc_reset_in_progress;
u8 shost_recovery;
spinlock_t ioc_reset_in_progress_lock;
u8 ioc_link_reset_in_progress;
@@ -663,6 +696,7 @@ struct MPT2SAS_ADAPTER {
dma_addr_t diag_buffer_dma[MPI2_DIAG_BUF_TYPE_COUNT];
u8 diag_buffer_status[MPI2_DIAG_BUF_TYPE_COUNT];
u32 unique_id[MPI2_DIAG_BUF_TYPE_COUNT];
+ Mpi2ManufacturingPage10_t manu_pg10;
u32 product_specific[MPI2_DIAG_BUF_TYPE_COUNT][23];
u32 diagnostic_flags[MPI2_DIAG_BUF_TYPE_COUNT];
};
@@ -734,6 +768,8 @@ void mpt2sas_config_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 re
int mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys);
int mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page);
+int mpt2sas_config_get_manufacturing_pg10(struct MPT2SAS_ADAPTER *ioc,
+ Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage10_t *config_page);
int mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2BiosPage2_t *config_page);
int mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
@@ -776,7 +812,6 @@ int mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle,
u16 *volume_handle);
int mpt2sas_config_get_volume_wwid(struct MPT2SAS_ADAPTER *ioc, u16 volume_handle,
u64 *wwid);
-
/* ctl shared API */
extern struct device_attribute *mpt2sas_host_attrs[];
extern struct device_attribute *mpt2sas_dev_attrs[];
@@ -802,5 +837,7 @@ void mpt2sas_transport_update_phy_link_change(struct MPT2SAS_ADAPTER *ioc, u16 h
u16 attached_handle, u8 phy_number, u8 link_rate);
extern struct sas_function_template mpt2sas_transport_functions;
extern struct scsi_transport_template *mpt2sas_transport_template;
+extern int scsi_internal_device_block(struct scsi_device *sdev);
+extern int scsi_internal_device_unblock(struct scsi_device *sdev);

#endif /* MPT2SAS_BASE_H_INCLUDED */
diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c
index 6ddee16..b9f4d0f 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_config.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_config.c
@@ -426,6 +426,67 @@ mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
}

/**
+ * mpt2sas_config_get_manufacturing_pg10 - obtain manufacturing page 10
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt2sas_config_get_manufacturing_pg10(struct MPT2SAS_ADAPTER *ioc,
+ Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage10_t *config_page)
+{
+ Mpi2ConfigRequest_t mpi_request;
+ int r;
+ struct config_request mem;
+
+ memset(config_page, 0, sizeof(Mpi2ManufacturingPage10_t));
+ memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+ mpi_request.Function = MPI2_FUNCTION_CONFIG;
+ mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+ mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+ mpi_request.Header.PageNumber = 10;
+ mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
+ mpt2sas_base_build_zero_len_sge(ioc, &mpi_request.PageBufferSGE);
+ r = _config_request(ioc, &mpi_request, mpi_reply,
+ MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT);
+ if (r)
+ goto out;
+
+ mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+ mpi_request.Header.PageVersion = mpi_reply->Header.PageVersion;
+ mpi_request.Header.PageNumber = mpi_reply->Header.PageNumber;
+ mpi_request.Header.PageType = mpi_reply->Header.PageType;
+ mpi_request.Header.PageLength = mpi_reply->Header.PageLength;
+ mem.config_page_sz = le16_to_cpu(mpi_reply->Header.PageLength) * 4;
+ if (mem.config_page_sz > ioc->config_page_sz) {
+ r = _config_alloc_config_dma_memory(ioc, &mem);
+ if (r)
+ goto out;
+ } else {
+ mem.config_page_dma = ioc->config_page_dma;
+ mem.config_page = ioc->config_page;
+ }
+ ioc->base_add_sg_single(&mpi_request.PageBufferSGE,
+ MPT2_CONFIG_COMMON_SGLFLAGS | mem.config_page_sz,
+ mem.config_page_dma);
+ r = _config_request(ioc, &mpi_request, mpi_reply,
+ MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT);
+ if (!r)
+ memcpy(config_page, mem.config_page,
+ min_t(u16, mem.config_page_sz,
+ sizeof(Mpi2ManufacturingPage10_t)));
+
+ if (mem.config_page_sz > ioc->config_page_sz)
+ _config_free_config_dma_memory(ioc, &mem);
+
+ out:
+ return r;
+}
+
+/**
* mpt2sas_config_get_bios_pg2 - obtain bios page 2
* @ioc: per adapter object
* @mpi_reply: reply mf payload returned from firmware
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index 14e473d..c2a5101 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -1963,7 +1963,6 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg)
{
enum block_state state;
long ret = -EINVAL;
- unsigned long flags;

state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING :
BLOCKING;
@@ -1989,13 +1988,8 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg)
!ioc)
return -ENODEV;

- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->shost_recovery) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
- flags);
+ if (ioc->shost_recovery)
return -EAGAIN;
- }
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) {
uarg = arg;
@@ -2098,7 +2092,6 @@ _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg)
struct mpt2_ioctl_command karg;
struct MPT2SAS_ADAPTER *ioc;
enum block_state state;
- unsigned long flags;

if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32))
return -EINVAL;
@@ -2113,13 +2106,8 @@ _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg)
if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;

- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->shost_recovery) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
- flags);
+ if (ioc->shost_recovery)
return -EAGAIN;
- }
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

memset(&karg, 0, sizeof(struct mpt2_ioctl_command));
karg.hdr.ioc_number = karg32.hdr.ioc_number;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 2e9a444..c7a0870 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -103,7 +103,6 @@ struct sense_info {
};

-#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
/**
* struct fw_event_work - firmware event struct
* @list: link list framework
@@ -1502,7 +1501,13 @@ _scsih_slave_configure(struct scsi_device *sdev)
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
- r_level = "RAID1E";
+ if (ioc->manu_pg10.OEMIdentifier &&
+ (ioc->manu_pg10.GenericFlags0 &
+ MFG10_GF0_R10_DISPLAY) &&
+ !(raid_device->num_pds % 2))
+ r_level = "RAID10";
+ else
+ r_level = "RAID1E";
break;
case MPI2_RAID_VOL_TYPE_RAID1:
qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
@@ -1786,17 +1791,18 @@ mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
u32 ioc_state;
unsigned long timeleft;
u8 VF_ID = 0;
- unsigned long flags;

- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
- ioc->shost_recovery) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+ if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
+ printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
+ __func__, ioc->name);
+ return;
+ }
+
+ if (ioc->shost_recovery) {
printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
return;
}
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
@@ -2222,7 +2228,7 @@ _scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
MPT2SAS_INFO_FMT "SDEV_RUNNING: "
"handle(0x%04x)\n", ioc->name, handle));
sas_device_priv_data->block = 0;
- scsi_device_set_state(sdev, SDEV_RUNNING);
+ scsi_internal_device_unblock(sdev);
}
}
}
@@ -2251,7 +2257,7 @@ _scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
MPT2SAS_INFO_FMT "SDEV_BLOCK: "
"handle(0x%04x)\n", ioc->name, handle));
sas_device_priv_data->block = 1;
- scsi_device_set_state(sdev, SDEV_BLOCK);
+ scsi_internal_device_block(sdev);
}
}
}
@@ -2327,6 +2333,7 @@ _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
u16 handle;
u16 reason_code;
u8 phy_number;
+ u8 link_rate;

for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
@@ -2337,6 +2344,11 @@ _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
+ if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
+ link_rate = event_data->PHY[i].LinkRate >> 4;
+ if (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)
+ _scsih_ublock_io_device(ioc, handle);
+ }
}
}

@@ -2405,27 +2417,6 @@ _scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
}

/**
- * _scsih_queue_rescan - queue a topology rescan from user context
- * @ioc: per adapter object
- *
- * Return nothing.
- */
-static void
-_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
-{
- struct fw_event_work *fw_event;
-
- if (ioc->wait_for_port_enable_to_complete)
- return;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
- if (!fw_event)
- return;
- fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
- fw_event->ioc = ioc;
- _scsih_fw_event_add(ioc, fw_event);
-}
-
-/**
* _scsih_flush_running_cmds - completing outstanding commands.
* @ioc: per adapter object
*
@@ -2456,46 +2447,6 @@ _scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
}

/**
- * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
- * @ioc: per adapter object
- * @reset_phase: phase
- *
- * The handler for doing any required cleanup or initialization.
- *
- * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
- * MPT2_IOC_DONE_RESET
- *
- * Return nothing.
- */
-void
-mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
-{
- switch (reset_phase) {
- case MPT2_IOC_PRE_RESET:
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
- "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
- _scsih_fw_event_off(ioc);
- break;
- case MPT2_IOC_AFTER_RESET:
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
- "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
- if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
- ioc->tm_cmds.status |= MPT2_CMD_RESET;
- mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
- complete(&ioc->tm_cmds.done);
- }
- _scsih_fw_event_on(ioc);
- _scsih_flush_running_cmds(ioc);
- break;
- case MPT2_IOC_DONE_RESET:
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
- "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
- _scsih_queue_rescan(ioc);
- break;
- }
-}
-
-/**
* _scsih_setup_eedp - setup MPI request for EEDP transfer
* @scmd: pointer to scsi command object
* @mpi_request: pointer to the SCSI_IO reqest message frame
@@ -2615,7 +2566,6 @@ _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
Mpi2SCSIIORequest_t *mpi_request;
u32 mpi_control;
u16 smid;
- unsigned long flags;

scmd->scsi_done = done;
sas_device_priv_data = scmd->device->hostdata;
@@ -2634,13 +2584,10 @@ _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
}

/* see if we are busy with task managment stuff */
- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (sas_target_priv_data->tm_busy ||
- ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+ if (sas_target_priv_data->tm_busy)
+ return SCSI_MLQUEUE_DEVICE_BUSY;
+ else if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
return SCSI_MLQUEUE_HOST_BUSY;
- }
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

if (scmd->sc_data_direction == DMA_FROM_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_READ;
@@ -3436,6 +3383,9 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
if (!handle)
return -1;

+ if (ioc->shost_recovery)
+ return -1;
+
if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
@@ -3572,6 +3522,9 @@ _scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
struct _sas_node *sas_expander;
unsigned long flags;

+ if (ioc->shost_recovery)
+ return;
+
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
@@ -3743,6 +3696,8 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
mutex_unlock(&ioc->tm_cmds.mutex);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
"done: handle(0x%04x)\n", ioc->name, device_handle));
+ if (ioc->shost_recovery)
+ goto out;
}

/* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
@@ -3765,6 +3720,9 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
le32_to_cpu(mpi_reply.IOCLogInfo)));

out:
+
+ _scsih_ublock_io_device(ioc, handle);
+
mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
sas_device->parent_handle);

@@ -3908,6 +3866,8 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
"expander event\n", ioc->name));
return;
}
+ if (ioc->shost_recovery)
+ return;
if (event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
continue;
@@ -3942,10 +3902,6 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
link_rate_);
}
}
- if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
- if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
- _scsih_ublock_io_device(ioc, handle);
- }
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
break;
@@ -5156,22 +5112,9 @@ static void
_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *sas_device_next;
- struct _sas_node *sas_expander, *sas_expander_next;
+ struct _sas_node *sas_expander;
struct _raid_device *raid_device, *raid_device_next;
- unsigned long flags;

- _scsih_search_responding_sas_devices(ioc);
- _scsih_search_responding_raid_devices(ioc);
- _scsih_search_responding_expanders(ioc);
-
- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- ioc->shost_recovery = 0;
- if (ioc->shost->shost_state == SHOST_RECOVERY) {
- printk(MPT2SAS_INFO_FMT "putting controller into "
- "SHOST_RUNNING\n", ioc->name);
- scsi_host_set_state(ioc->shost, SHOST_RUNNING);
- }
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_list, list) {
@@ -5207,16 +5150,63 @@ _scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
_scsih_raid_device_remove(ioc, raid_device);
}

- list_for_each_entry_safe(sas_expander, sas_expander_next,
- &ioc->sas_expander_list, list) {
+ retry_expander_search:
+ sas_expander = NULL;
+ list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->responding) {
sas_expander->responding = 0;
continue;
}
- printk("\tremoving expander: handle(0x%04x), "
- " sas_addr(0x%016llx)\n", sas_expander->handle,
- (unsigned long long)sas_expander->sas_address);
_scsih_expander_remove(ioc, sas_expander->handle);
+ goto retry_expander_search;
+ }
+}
+
+/**
+ * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
+ * @ioc: per adapter object
+ * @reset_phase: phase
+ *
+ * The handler for doing any required cleanup or initialization.
+ *
+ * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
+ * MPT2_IOC_DONE_RESET
+ *
+ * Return nothing.
+ */
+void
+mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
+{
+ switch (reset_phase) {
+ case MPT2_IOC_PRE_RESET:
+ dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
+ _scsih_fw_event_off(ioc);
+ break;
+ case MPT2_IOC_AFTER_RESET:
+ dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
+ if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
+ ioc->tm_cmds.status |= MPT2_CMD_RESET;
+ mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
+ complete(&ioc->tm_cmds.done);
+ }
+ _scsih_fw_event_on(ioc);
+ _scsih_flush_running_cmds(ioc);
+ break;
+ case MPT2_IOC_DONE_RESET:
+ dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
+ _scsih_sas_host_refresh(ioc, 0);
+ _scsih_search_responding_sas_devices(ioc);
+ _scsih_search_responding_raid_devices(ioc);
+ _scsih_search_responding_expanders(ioc);
+ break;
+ case MPT2_IOC_RUNNING:
+ dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ "MPT2_IOC_RUNNING\n", ioc->name, __func__));
+ _scsih_remove_unresponding_devices(ioc);
+ break;
}
}

@@ -5236,14 +5226,6 @@ _firmware_event_work(struct work_struct *work)
unsigned long flags;
struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;

- /* This is invoked by calling _scsih_queue_rescan(). */
- if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
- _scsih_fw_event_free(ioc, fw_event);
- _scsih_sas_host_refresh(ioc, 1);
- _scsih_remove_unresponding_devices(ioc);
- return;
- }
-
/* the queue is being flushed so ignore this event */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (ioc->fw_events_off || ioc->remove_host) {
@@ -5253,13 +5235,10 @@ _firmware_event_work(struct work_struct *work)
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);

- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (ioc->shost_recovery) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
_scsih_fw_event_requeue(ioc, fw_event, 1000);
return;
}
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

switch (fw_event->event) {
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
@@ -5461,6 +5440,8 @@ _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
if (!sas_device)
continue;
_scsih_remove_device(ioc, sas_device->handle);
+ if (ioc->shost_recovery)
+ return;
goto retry_device_search;
}
}
@@ -5482,6 +5463,8 @@ _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
if (!expander_sibling)
continue;
_scsih_expander_remove(ioc, expander_sibling->handle);
+ if (ioc->shost_recovery)
+ return;
goto retry_expander_search;
}
}
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index 686695b..a53086d 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -140,11 +140,18 @@ _transport_set_identify(struct MPT2SAS_ADAPTER *ioc, u16 handle,
u32 device_info;
u32 ioc_status;

+ if (ioc->shost_recovery) {
+ printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
+ __func__, ioc->name);
+ return -EFAULT;
+ }
+
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+
ioc->name, __FILE__, __LINE__, __func__);
- return -1;
+ return -ENXIO;
}

ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
@@ -153,7 +160,7 @@ _transport_set_identify(struct MPT2SAS_ADAPTER *ioc, u16 handle,
printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
"\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
__FILE__, __LINE__, __func__);
- return -1;
+ return -EIO;
}

memset(identify, 0, sizeof(identify));
@@ -288,21 +295,17 @@ _transport_expander_report_manufacture(struct MPT2SAS_ADAPTER *ioc,
void *psge;
u32 sgl_flags;
u8 issue_reset = 0;
- unsigned long flags;
void *data_out = NULL;
dma_addr_t data_out_dma;
u32 sz;
u64 *sas_address_le;
u16 wait_state_count;

- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->ioc_reset_in_progress) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+ if (ioc->shost_recovery) {
printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
return -EFAULT;
}
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

mutex_lock(&ioc->transport_cmds.mutex);

@@ -806,6 +809,12 @@ mpt2sas_transport_update_phy_link_change(struct MPT2SAS_ADAPTER *ioc,
struct _sas_node *sas_node;
struct _sas_phy *mpt2sas_phy;

+ if (ioc->shost_recovery) {
+ printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
+ __func__, ioc->name);
+ return;
+ }
+
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_node = _transport_sas_node_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
@@ -1025,7 +1034,6 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
void *psge;
u32 sgl_flags;
u8 issue_reset = 0;
- unsigned long flags;
dma_addr_t dma_addr_in = 0;
dma_addr_t dma_addr_out = 0;
u16 wait_state_count;
@@ -1045,14 +1053,11 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
return -EINVAL;
}

- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->ioc_reset_in_progress) {
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+ if (ioc->shost_recovery) {
printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
__func__, ioc->name);
return -EFAULT;
}
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);

rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex);
if (rc)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index b7b9fec..a89c421 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2021,6 +2021,7 @@ static void sd_probe_async(void *data, async_cookie_t cookie)

sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
sdp->removable ? "removable " : "");
+ put_device(&sdkp->dev);
}

/**
@@ -2106,6 +2107,7 @@ static int sd_probe(struct device *dev)

get_device(&sdp->sdev_gendev);

+ get_device(&sdkp->dev); /* prevent release before async_schedule */
async_schedule(sd_probe_async, sdkp);

return 0;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 9230402..4968c4c 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1811,7 +1811,7 @@ retry:
return 0;
out:
for (i = 0; i < k; i++)
- __free_pages(schp->pages[k], order);
+ __free_pages(schp->pages[i], order);

if (--order >= 0)
goto retry;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index b7c1603..7c1e65d 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -501,22 +501,22 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
}
}

- /*
- * Now fill out the bss section. First pad the last page up
- * to the page boundary, and then perform a mmap to make sure
- * that there are zero-mapped pages up to and including the
- * last bss page.
- */
- if (padzero(elf_bss)) {
- error = -EFAULT;
- goto out_close;
- }
+ if (last_bss > elf_bss) {
+ /*
+ * Now fill out the bss section. First pad the last page up
+ * to the page boundary, and then perform a mmap to make sure
+ * that there are zero-mapped pages up to and including the
+ * last bss page.
+ */
+ if (padzero(elf_bss)) {
+ error = -EFAULT;
+ goto out_close;
+ }

- /* What we have mapped so far */
- elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
+ /* What we have mapped so far */
+ elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);

- /* Map the last of the bss segment */
- if (last_bss > elf_bss) {
+ /* Map the last of the bss segment */
down_write(&current->mm->mmap_sem);
error = do_brk(elf_bss, last_bss - elf_bss);
up_write(&current->mm->mmap_sem);
diff --git a/include/linux/kvm_para.h b/include/linux/kvm_para.h
index 3ddce03..d731092 100644
--- a/include/linux/kvm_para.h
+++ b/include/linux/kvm_para.h
@@ -13,6 +13,7 @@
#define KVM_ENOSYS 1000
#define KVM_EFAULT EFAULT
#define KVM_E2BIG E2BIG
+#define KVM_EPERM EPERM

#define KVM_HC_VAPIC_POLL_IRQ 1
#define KVM_HC_MMU_OP 2
diff --git a/ipc/shm.c b/ipc/shm.c
index 1bc4701..30162a5 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -410,7 +410,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
return error;

no_id:
- if (shp->mlock_user) /* shmflg & SHM_HUGETLB case */
+ if (is_file_hugepages(file) && shp->mlock_user)
user_shm_unlock(size, shp->mlock_user);
fput(file);
no_file:
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index d7cbc57..3f49f53 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -469,7 +469,8 @@ static void update_counter_times(struct perf_counter *counter)
struct perf_counter_context *ctx = counter->ctx;
u64 run_end;

- if (counter->state < PERF_COUNTER_STATE_INACTIVE)
+ if (counter->state < PERF_COUNTER_STATE_INACTIVE ||
+ counter->group_leader->state < PERF_COUNTER_STATE_INACTIVE)
return;

counter->total_time_enabled = ctx->time - counter->tstamp_enabled;
@@ -518,7 +519,7 @@ static void __perf_counter_disable(void *info)
*/
if (counter->state >= PERF_COUNTER_STATE_INACTIVE) {
update_context_time(ctx);
- update_counter_times(counter);
+ update_group_times(counter);
if (counter == counter->group_leader)
group_sched_out(counter, cpuctx, ctx);
else
@@ -573,7 +574,7 @@ static void perf_counter_disable(struct perf_counter *counter)
* in, so we can change the state safely.
*/
if (counter->state == PERF_COUNTER_STATE_INACTIVE) {
- update_counter_times(counter);
+ update_group_times(counter);
counter->state = PERF_COUNTER_STATE_OFF;
}

@@ -851,6 +852,27 @@ retry:
}

/*
+ * Put a counter into inactive state and update time fields.
+ * Enabling the leader of a group effectively enables all
+ * the group members that aren't explicitly disabled, so we
+ * have to update their ->tstamp_enabled also.
+ * Note: this works for group members as well as group leaders
+ * since the non-leader members' sibling_lists will be empty.
+ */
+static void __perf_counter_mark_enabled(struct perf_counter *counter,
+ struct perf_counter_context *ctx)
+{
+ struct perf_counter *sub;
+
+ counter->state = PERF_COUNTER_STATE_INACTIVE;
+ counter->tstamp_enabled = ctx->time - counter->total_time_enabled;
+ list_for_each_entry(sub, &counter->sibling_list, list_entry)
+ if (sub->state >= PERF_COUNTER_STATE_INACTIVE)
+ sub->tstamp_enabled =
+ ctx->time - sub->total_time_enabled;
+}
+
+/*
* Cross CPU call to enable a performance counter
*/
static void __perf_counter_enable(void *info)
@@ -877,8 +899,7 @@ static void __perf_counter_enable(void *info)

if (counter->state >= PERF_COUNTER_STATE_INACTIVE)
goto unlock;
- counter->state = PERF_COUNTER_STATE_INACTIVE;
- counter->tstamp_enabled = ctx->time - counter->total_time_enabled;
+ __perf_counter_mark_enabled(counter, ctx);

/*
* If the counter is in a group and isn't the group leader,
@@ -971,11 +992,9 @@ static void perf_counter_enable(struct perf_counter *counter)
* Since we have the lock this context can't be scheduled
* in, so we can change the state safely.
*/
- if (counter->state == PERF_COUNTER_STATE_OFF) {
- counter->state = PERF_COUNTER_STATE_INACTIVE;
- counter->tstamp_enabled =
- ctx->time - counter->total_time_enabled;
- }
+ if (counter->state == PERF_COUNTER_STATE_OFF)
+ __perf_counter_mark_enabled(counter, ctx);
+
out:
spin_unlock_irq(&ctx->lock);
}
@@ -1479,9 +1498,7 @@ static void perf_counter_enable_on_exec(struct task_struct *task)
counter->attr.enable_on_exec = 0;
if (counter->state >= PERF_COUNTER_STATE_INACTIVE)
continue;
- counter->state = PERF_COUNTER_STATE_INACTIVE;
- counter->tstamp_enabled =
- ctx->time - counter->total_time_enabled;
+ __perf_counter_mark_enabled(counter, ctx);
enabled = 1;
}

@@ -4171,6 +4188,7 @@ static int perf_copy_attr(struct perf_counter_attr __user *uattr,
if (val)
goto err_size;
}
+ size = sizeof(*attr);
}

ret = copy_from_user(attr, uattr, size);
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 7e595ce..46c101a 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -97,7 +97,7 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
dev->bss_generation++;
}

-static u8 *find_ie(u8 num, u8 *ies, size_t len)
+static u8 *find_ie(u8 num, u8 *ies, int len)
{
while (len > 2 && ies[0] != num) {
len -= ies[1] + 2;
diff --git a/sound/pci/cs46xx/cs46xx_lib.h b/sound/pci/cs46xx/cs46xx_lib.h
index 4eb55aa..b518949 100644
--- a/sound/pci/cs46xx/cs46xx_lib.h
+++ b/sound/pci/cs46xx/cs46xx_lib.h
@@ -35,7 +35,7 @@

#ifdef CONFIG_SND_CS46XX_NEW_DSP
-#define CS46XX_MIN_PERIOD_SIZE 1
+#define CS46XX_MIN_PERIOD_SIZE 64
#define CS46XX_MAX_PERIOD_SIZE 1024*1024
#else
#define CS46XX_MIN_PERIOD_SIZE 2048
diff --git a/sound/pci/oxygen/oxygen_io.c b/sound/pci/oxygen/oxygen_io.c
index c1eb923..09b2b2a 100644
--- a/sound/pci/oxygen/oxygen_io.c
+++ b/sound/pci/oxygen/oxygen_io.c
@@ -215,17 +215,8 @@ EXPORT_SYMBOL(oxygen_write_spi);

void oxygen_write_i2c(struct oxygen *chip, u8 device, u8 map, u8 data)
{
- unsigned long timeout;
-
/* should not need more than about 300 us */
- timeout = jiffies + msecs_to_jiffies(1);
- do {
- if (!(oxygen_read16(chip, OXYGEN_2WIRE_BUS_STATUS)
- & OXYGEN_2WIRE_BUSY))
- break;
- udelay(1);
- cond_resched();
- } while (time_after_eq(timeout, jiffies));
+ msleep(1);

oxygen_write8(chip, OXYGEN_2WIRE_MAP, map);
oxygen_write8(chip, OXYGEN_2WIRE_DATA, data);
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index e7348d3..b3a2de8 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -613,7 +613,7 @@ SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME, 15, 1, 1);

/* Out4 Capture Mux */
static const struct snd_kcontrol_new wm8350_out4_capture_controls =
-SOC_DAPM_ENUM("Route", wm8350_enum[8]);
+SOC_DAPM_ENUM("Route", wm8350_enum[7]);

static const struct snd_soc_dapm_widget wm8350_dapm_widgets[] = {

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index b4b06c7..e874ad4 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -82,19 +82,32 @@ static u64 runtime_cycles[MAX_RUN];
static u64 event_res[MAX_RUN][MAX_COUNTERS][3];
static u64 event_scaled[MAX_RUN][MAX_COUNTERS];

-static u64 event_res_avg[MAX_COUNTERS][3];
-static u64 event_res_noise[MAX_COUNTERS][3];
+struct stats
+{
+ double sum;
+ double sum_sq;
+};

-static u64 event_scaled_avg[MAX_COUNTERS];
+static double avg_stats(struct stats *stats)
+{
+ return stats->sum / run_count;
+}

-static u64 runtime_nsecs_avg;
-static u64 runtime_nsecs_noise;
+/*
+ * stddev = sqrt(1/N (\Sum n_i^2) - avg(n)^2)
+ */
+static double stddev_stats(struct stats *stats)
+{
+ double avg = stats->sum / run_count;

-static u64 walltime_nsecs_avg;
-static u64 walltime_nsecs_noise;
+ return sqrt(stats->sum_sq/run_count - avg*avg);
+}

-static u64 runtime_cycles_avg;
-static u64 runtime_cycles_noise;
+struct stats event_res_stats[MAX_COUNTERS][3];
+struct stats event_scaled_stats[MAX_COUNTERS];
+struct stats runtime_nsecs_stats;
+struct stats walltime_nsecs_stats;
+struct stats runtime_cycles_stats;

#define MATCH_EVENT(t, c, counter) \
(attrs[counter].type == PERF_TYPE_##t && \
@@ -278,42 +291,37 @@ static int run_perf_stat(int argc __used, const char **argv)
return WEXITSTATUS(status);
}

-static void print_noise(u64 *count, u64 *noise)
+static void print_noise(double avg, double stddev)
{
if (run_count > 1)
- fprintf(stderr, " ( +- %7.3f%% )",
- (double)noise[0]/(count[0]+1)*100.0);
+ fprintf(stderr, " ( +- %7.3f%% )", 100*stddev / avg);
}

-static void nsec_printout(int counter, u64 *count, u64 *noise)
+static void nsec_printout(int counter, double avg, double stddev)
{
- double msecs = (double)count[0] / 1000000;
+ double msecs = avg / 1e6;

fprintf(stderr, " %14.6f %-24s", msecs, event_name(counter));

if (MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter)) {
- if (walltime_nsecs_avg)
- fprintf(stderr, " # %10.3f CPUs ",
- (double)count[0] / (double)walltime_nsecs_avg);
+ fprintf(stderr, " # %10.3f CPUs ",
+ avg / avg_stats(&walltime_nsecs_stats));
}
- print_noise(count, noise);
+ print_noise(avg, stddev);
}

-static void abs_printout(int counter, u64 *count, u64 *noise)
+static void abs_printout(int counter, double avg, double stddev)
{
- fprintf(stderr, " %14Ld %-24s", count[0], event_name(counter));
+ fprintf(stderr, " %14.0f %-24s", avg, event_name(counter));

- if (runtime_cycles_avg &&
- MATCH_EVENT(HARDWARE, HW_INSTRUCTIONS, counter)) {
+ if (MATCH_EVENT(HARDWARE, HW_INSTRUCTIONS, counter)) {
fprintf(stderr, " # %10.3f IPC ",
- (double)count[0] / (double)runtime_cycles_avg);
+ avg / avg_stats(&runtime_cycles_stats));
} else {
- if (runtime_nsecs_avg) {
- fprintf(stderr, " # %10.3f M/sec",
- (double)count[0]/runtime_nsecs_avg*1000.0);
- }
+ fprintf(stderr, " # %10.3f M/sec",
+ 1000.0 * avg / avg_stats(&runtime_nsecs_stats));
}
- print_noise(count, noise);
+ print_noise(avg, stddev);
}

/*
@@ -321,12 +329,12 @@ static void abs_printout(int counter, u64 *count, u64 *noise)
*/
static void print_counter(int counter)
{
- u64 *count, *noise;
+ double avg, stddev;
int scaled;

- count = event_res_avg[counter];
- noise = event_res_noise[counter];
- scaled = event_scaled_avg[counter];
+ avg = avg_stats(&event_res_stats[counter][0]);
+ stddev = stddev_stats(&event_res_stats[counter][0]);
+ scaled = avg_stats(&event_scaled_stats[counter]);

if (scaled == -1) {
fprintf(stderr, " %14s %-24s\n",
@@ -335,36 +343,34 @@ static void print_counter(int counter)
}

if (nsec_counter(counter))
- nsec_printout(counter, count, noise);
+ nsec_printout(counter, avg, stddev);
else
- abs_printout(counter, count, noise);
+ abs_printout(counter, avg, stddev);
+
+ if (scaled) {
+ double avg_enabled, avg_running;
+
+ avg_enabled = avg_stats(&event_res_stats[counter][1]);
+ avg_running = avg_stats(&event_res_stats[counter][2]);

- if (scaled)
fprintf(stderr, " (scaled from %.2f%%)",
- (double) count[2] / count[1] * 100);
+ 100 * avg_running / avg_enabled);
+ }

fprintf(stderr, "\n");
}

-/*
- * normalize_noise noise values down to stddev:
- */
-static void normalize_noise(u64 *val)
+static void update_stats(const char *name, int idx, struct stats *stats, u64 *val)
{
- double res;
+ double sq = *val;

- res = (double)*val / (run_count * sqrt((double)run_count));
-
- *val = (u64)res;
-}
-
-static void update_avg(const char *name, int idx, u64 *avg, u64 *val)
-{
- *avg += *val;
+ stats->sum += *val;
+ stats->sum_sq += sq * sq;

if (verbose > 1)
fprintf(stderr, "debug: %20s[%d]: %Ld\n", name, idx, *val);
}
+
/*
* Calculate the averages and noises:
*/
@@ -376,61 +382,22 @@ static void calc_avg(void)
fprintf(stderr, "\n");

for (i = 0; i < run_count; i++) {
- update_avg("runtime", 0, &runtime_nsecs_avg, runtime_nsecs + i);
- update_avg("walltime", 0, &walltime_nsecs_avg, walltime_nsecs + i);
- update_avg("runtime_cycles", 0, &runtime_cycles_avg, runtime_cycles + i);
+ update_stats("runtime", 0, &runtime_nsecs_stats, runtime_nsecs + i);
+ update_stats("walltime", 0, &walltime_nsecs_stats, walltime_nsecs + i);
+ update_stats("runtime_cycles", 0, &runtime_cycles_stats, runtime_cycles + i);

for (j = 0; j < nr_counters; j++) {
- update_avg("counter/0", j,
- event_res_avg[j]+0, event_res[i][j]+0);
- update_avg("counter/1", j,
- event_res_avg[j]+1, event_res[i][j]+1);
- update_avg("counter/2", j,
- event_res_avg[j]+2, event_res[i][j]+2);
+ update_stats("counter/0", j,
+ event_res_stats[j]+0, event_res[i][j]+0);
+ update_stats("counter/1", j,
+ event_res_stats[j]+1, event_res[i][j]+1);
+ update_stats("counter/2", j,
+ event_res_stats[j]+2, event_res[i][j]+2);
if (event_scaled[i][j] != (u64)-1)
- update_avg("scaled", j,
- event_scaled_avg + j, event_scaled[i]+j);
- else
- event_scaled_avg[j] = -1;
+ update_stats("scaled", j,
+ event_scaled_stats + j, event_scaled[i]+j);
}
}
- runtime_nsecs_avg /= run_count;
- walltime_nsecs_avg /= run_count;
- runtime_cycles_avg /= run_count;
-
- for (j = 0; j < nr_counters; j++) {
- event_res_avg[j][0] /= run_count;
- event_res_avg[j][1] /= run_count;
- event_res_avg[j][2] /= run_count;
- }
-
- for (i = 0; i < run_count; i++) {
- runtime_nsecs_noise +=
- abs((s64)(runtime_nsecs[i] - runtime_nsecs_avg));
- walltime_nsecs_noise +=
- abs((s64)(walltime_nsecs[i] - walltime_nsecs_avg));
- runtime_cycles_noise +=
- abs((s64)(runtime_cycles[i] - runtime_cycles_avg));
-
- for (j = 0; j < nr_counters; j++) {
- event_res_noise[j][0] +=
- abs((s64)(event_res[i][j][0] - event_res_avg[j][0]));
- event_res_noise[j][1] +=
- abs((s64)(event_res[i][j][1] - event_res_avg[j][1]));
- event_res_noise[j][2] +=
- abs((s64)(event_res[i][j][2] - event_res_avg[j][2]));
- }
- }
-
- normalize_noise(&runtime_nsecs_noise);
- normalize_noise(&walltime_nsecs_noise);
- normalize_noise(&runtime_cycles_noise);
-
- for (j = 0; j < nr_counters; j++) {
- normalize_noise(&event_res_noise[j][0]);
- normalize_noise(&event_res_noise[j][1]);
- normalize_noise(&event_res_noise[j][2]);
- }
}

static void print_stat(int argc, const char **argv)
@@ -457,10 +424,11 @@ static void print_stat(int argc, const char **argv)

fprintf(stderr, "\n");
fprintf(stderr, " %14.9f seconds time elapsed",
- (double)walltime_nsecs_avg/1e9);
+ avg_stats(&walltime_nsecs_stats)/1e9);
if (run_count > 1) {
fprintf(stderr, " ( +- %7.3f%% )",
- 100.0*(double)walltime_nsecs_noise/(double)walltime_nsecs_avg);
+ 100*stddev_stats(&walltime_nsecs_stats) /
+ avg_stats(&walltime_nsecs_stats));
}
fprintf(stderr, "\n\n");
}
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 1150c6d..5f39805 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -188,6 +188,8 @@ int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
if ((edge && old_irr != ioapic->irr) ||
(!edge && !entry.fields.remote_irr))
ret = ioapic_service(ioapic, irq);
+ else
+ ret = 0; /* report coalesced interrupt */
}
}
return ret;
--
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