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Merge branch 'perfcounters/urgent' into perfcounters/core

Browse source 
Conflicts:
	kernel/perf_counter.c

Merge reason: update to latest upstream (-rc6) and resolve
              the conflict with urgent fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-08-15 12:06:12 +02:00
commit be750231ce
140 changed files with 1407 additions and 648 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
Documentation/ioctl/ioctl-number.txt
View file

@ -139,6 +139,7 @@ Code Seq# Include File Comments
'm' all linux/synclink.h conflict!
'm' 00-1F net/irda/irmod.h conflict!
'n' 00-7F linux/ncp_fs.h
'n' 80-8F linux/nilfs2_fs.h NILFS2
'n' E0-FF video/matrox.h matroxfb
'o' 00-1F fs/ocfs2/ocfs2_fs.h OCFS2
'o' 00-03 include/mtd/ubi-user.h conflict! (OCFS2 and UBI overlaps)

4
Documentation/kernel-parameters.txt
View file

@ -1115,6 +1115,10 @@ and is between 256 and 4096 characters. It is defined in the file
libata.dma=4 Compact Flash DMA only
Combinations also work, so libata.dma=3 enables DMA
for disks and CDROMs, but not CFs.
libata.ignore_hpa= [LIBATA] Ignore HPA limit
libata.ignore_hpa=0 keep BIOS limits (default)
libata.ignore_hpa=1 ignore limits, using full disk
libata.noacpi [LIBATA] Disables use of ACPI in libata suspend/resume
when set.

6
Documentation/lockdep-design.txt
View file

@ -30,9 +30,9 @@ State
The validator tracks lock-class usage history into 4n + 1 separate state bits:
- 'ever held in STATE context'
- 'ever head as readlock in STATE context'
- 'ever head with STATE enabled'
- 'ever head as readlock with STATE enabled'
- 'ever held as readlock in STATE context'
- 'ever held with STATE enabled'
- 'ever held as readlock with STATE enabled'
Where STATE can be either one of (kernel/lockdep_states.h)
- hardirq

2
Makefile
View file

@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 31
EXTRAVERSION = -rc5
EXTRAVERSION = -rc6
NAME = Man-Eating Seals of Antiquity
# *DOCUMENTATION*

5
arch/ia64/Makefile
View file

@ -41,11 +41,6 @@ $(error Sorry, you need a newer version of the assember, one that is built from
ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz)
endif
ifeq ($(call cc-version),0304)
cflags-$(CONFIG_ITANIUM) += -mtune=merced
cflags-$(CONFIG_MCKINLEY) += -mtune=mckinley
endif
KBUILD_CFLAGS += $(cflags-y)
head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o

2
arch/ia64/include/asm/bitops.h
View file

@ -286,7 +286,7 @@ __test_and_clear_bit(int nr, volatile void * addr)
{
__u32 *p = (__u32 *) addr + (nr >> 5);
__u32 m = 1 << (nr & 31);
int oldbitset = *p & m;
int oldbitset = (*p & m) != 0;
*p &= ~m;
return oldbitset;

1
arch/ia64/include/asm/pgtable.h
View file

@ -155,7 +155,6 @@
#include <linux/bitops.h>
#include <asm/cacheflush.h>
#include <asm/mmu_context.h>
#include <asm/processor.h>
/*
* Next come the mappings that determine how mmap() protection bits

4
arch/ia64/kernel/ia64_ksyms.c
View file

@ -21,6 +21,7 @@ EXPORT_SYMBOL(csum_ipv6_magic);
#include <asm/page.h>
EXPORT_SYMBOL(clear_page);
EXPORT_SYMBOL(copy_page);
#ifdef CONFIG_VIRTUAL_MEM_MAP
#include <linux/bootmem.h>
@ -60,9 +61,6 @@ EXPORT_SYMBOL(__udivdi3);
EXPORT_SYMBOL(__moddi3);
EXPORT_SYMBOL(__umoddi3);
#include <asm/page.h>
EXPORT_SYMBOL(copy_page);
#if defined(CONFIG_MD_RAID456) || defined(CONFIG_MD_RAID456_MODULE)
extern void xor_ia64_2(void);
extern void xor_ia64_3(void);

4
arch/ia64/kernel/iosapic.c
View file

@ -1072,6 +1072,10 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
}
addr = ioremap(phys_addr, 0);
if (addr == NULL) {
spin_unlock_irqrestore(&iosapic_lock, flags);
return -ENOMEM;
}
ver = iosapic_version(addr);
if ((err = iosapic_check_gsi_range(gsi_base, ver))) {
iounmap(addr);

5
arch/ia64/kernel/pci-dma.c
View file

@ -69,11 +69,6 @@ iommu_dma_init(void)
int iommu_dma_supported(struct device *dev, u64 mask)
{
struct dma_map_ops *ops = platform_dma_get_ops(dev);
if (ops->dma_supported)
return ops->dma_supported(dev, mask);
/* Copied from i386. Doesn't make much sense, because it will
only work for pci_alloc_coherent.
The caller just has to use GFP_DMA in this case. */

6
arch/ia64/kernel/topology.c
View file

@ -372,6 +372,10 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
retval = kobject_init_and_add(&all_cpu_cache_info[cpu].kobj,
&cache_ktype_percpu_entry, &sys_dev->kobj,
"%s", "cache");
if (unlikely(retval < 0)) {
cpu_cache_sysfs_exit(cpu);
return retval;
}
for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++) {
this_object = LEAF_KOBJECT_PTR(cpu,i);
@ -385,7 +389,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
}
kobject_put(&all_cpu_cache_info[cpu].kobj);
cpu_cache_sysfs_exit(cpu);
break;
return retval;
}
kobject_uevent(&(this_object->kobj), KOBJ_ADD);
}

6
arch/ia64/kvm/mmio.c
View file

@ -247,7 +247,8 @@ void emulate_io_inst(struct kvm_vcpu *vcpu, u64 padr, u64 ma)
vcpu_get_fpreg(vcpu, inst.M9.f2, &v);
/* Write high word. FIXME: this is a kludge! */
v.u.bits[1] &= 0x3ffff;
mmio_access(vcpu, padr + 8, &v.u.bits[1], 8, ma, IOREQ_WRITE);
mmio_access(vcpu, padr + 8, (u64 *)&v.u.bits[1], 8,
ma, IOREQ_WRITE);
data = v.u.bits[0];
size = 3;
} else if (inst.M10.major == 7 && inst.M10.x6 == 0x3B) {
@ -265,7 +266,8 @@ void emulate_io_inst(struct kvm_vcpu *vcpu, u64 padr, u64 ma)
/* Write high word.FIXME: this is a kludge! */
v.u.bits[1] &= 0x3ffff;
mmio_access(vcpu, padr + 8, &v.u.bits[1], 8, ma, IOREQ_WRITE);
mmio_access(vcpu, padr + 8, (u64 *)&v.u.bits[1],
8, ma, IOREQ_WRITE);
data = v.u.bits[0];
size = 3;
} else if (inst.M10.major == 7 && inst.M10.x6 == 0x31) {

6
arch/ia64/kvm/vcpu.c
View file

@ -461,7 +461,7 @@ void setreg(unsigned long regnum, unsigned long val,
u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg)
{
struct kvm_pt_regs *regs = vcpu_regs(vcpu);
u64 val;
unsigned long val;
if (!reg)
return 0;
@ -469,7 +469,7 @@ u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg)
return val;
}
void vcpu_set_gr(struct kvm_vcpu *vcpu, u64 reg, u64 value, int nat)
void vcpu_set_gr(struct kvm_vcpu *vcpu, unsigned long reg, u64 value, int nat)
{
struct kvm_pt_regs *regs = vcpu_regs(vcpu);
long sof = (regs->cr_ifs) & 0x7f;
@ -1072,7 +1072,7 @@ void kvm_ttag(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_gr(vcpu, inst.M46.r1, tag, 0);
}
int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, u64 *padr)
int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, unsigned long *padr)
{
struct thash_data *data;
union ia64_isr visr, pt_isr;

13
arch/ia64/kvm/vcpu.h
View file

@ -686,14 +686,15 @@ static inline int highest_inservice_irq(struct kvm_vcpu *vcpu)
return highest_bits((int *)&(VMX(vcpu, insvc[0])));
}
extern void vcpu_get_fpreg(struct kvm_vcpu *vcpu, u64 reg,
extern void vcpu_get_fpreg(struct kvm_vcpu *vcpu, unsigned long reg,
struct ia64_fpreg *val);
extern void vcpu_set_fpreg(struct kvm_vcpu *vcpu, u64 reg,
extern void vcpu_set_fpreg(struct kvm_vcpu *vcpu, unsigned long reg,
struct ia64_fpreg *val);
extern u64 vcpu_get_gr(struct kvm_vcpu *vcpu, u64 reg);
extern void vcpu_set_gr(struct kvm_vcpu *vcpu, u64 reg, u64 val, int nat);
extern u64 vcpu_get_psr(struct kvm_vcpu *vcpu);
extern void vcpu_set_psr(struct kvm_vcpu *vcpu, u64 val);
extern u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg);
extern void vcpu_set_gr(struct kvm_vcpu *vcpu, unsigned long reg,
u64 val, int nat);
extern unsigned long vcpu_get_psr(struct kvm_vcpu *vcpu);
extern void vcpu_set_psr(struct kvm_vcpu *vcpu, unsigned long val);
extern u64 vcpu_thash(struct kvm_vcpu *vcpu, u64 vadr);
extern void vcpu_bsw0(struct kvm_vcpu *vcpu);
extern void thash_vhpt_insert(struct kvm_vcpu *v, u64 pte,

1
arch/mn10300/include/asm/pci.h
View file

@ -59,7 +59,6 @@ void pcibios_penalize_isa_irq(int irq);
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <asm/io.h>
struct pci_dev;

2
arch/powerpc/include/asm/kvm_host.h
View file

@ -34,7 +34,7 @@
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
/* We don't currently support large pages. */
#define KVM_PAGES_PER_HPAGE (1<<31)
#define KVM_PAGES_PER_HPAGE (1UL << 31)
struct kvm;
struct kvm_run;

6
arch/powerpc/kernel/dma.c
View file

@ -7,6 +7,7 @@
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/lmb.h>
#include <asm/bug.h>
#include <asm/abs_addr.h>
@ -90,11 +91,10 @@ static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
static int dma_direct_dma_supported(struct device *dev, u64 mask)
{
#ifdef CONFIG_PPC64
/* Could be improved to check for memory though it better be
* done via some global so platforms can set the limit in case
/* Could be improved so platforms can set the limit in case
* they have limited DMA windows
*/
return mask >= DMA_BIT_MASK(32);
return mask >= (lmb_end_of_DRAM() - 1);
#else
return 1;
#endif

2
arch/s390/kvm/interrupt.c
View file

@ -386,7 +386,7 @@ no_timer:
}
__unset_cpu_idle(vcpu);
__set_current_state(TASK_RUNNING);
remove_wait_queue(&vcpu->wq, &wait);
remove_wait_queue(&vcpu->arch.local_int.wq, &wait);
spin_unlock_bh(&vcpu->arch.local_int.lock);
spin_unlock(&vcpu->arch.local_int.float_int->lock);
hrtimer_try_to_cancel(&vcpu->arch.ckc_timer);

2
arch/sh/boards/board-ap325rxa.c
View file

@ -547,7 +547,7 @@ static int __init ap325rxa_devices_setup(void)
return platform_add_devices(ap325rxa_devices,
ARRAY_SIZE(ap325rxa_devices));
}
device_initcall(ap325rxa_devices_setup);
arch_initcall(ap325rxa_devices_setup);
/* Return the board specific boot mode pin configuration */
static int ap325rxa_mode_pins(void)

2
arch/sh/boards/mach-migor/setup.c
View file

@ -608,7 +608,7 @@ static int __init migor_devices_setup(void)
return platform_add_devices(migor_devices, ARRAY_SIZE(migor_devices));
}
__initcall(migor_devices_setup);
arch_initcall(migor_devices_setup);
/* Return the board specific boot mode pin configuration */
static int migor_mode_pins(void)

2
arch/sh/kernel/cpu/sh2/setup-sh7619.c
View file

@ -187,7 +187,7 @@ static int __init sh7619_devices_setup(void)
return platform_add_devices(sh7619_devices,
ARRAY_SIZE(sh7619_devices));
}
__initcall(sh7619_devices_setup);
arch_initcall(sh7619_devices_setup);
void __init plat_irq_setup(void)
{

2
arch/sh/kernel/cpu/sh2a/setup-mxg.c
View file

@ -238,7 +238,7 @@ static int __init mxg_devices_setup(void)
return platform_add_devices(mxg_devices,
ARRAY_SIZE(mxg_devices));
}
__initcall(mxg_devices_setup);
arch_initcall(mxg_devices_setup);
void __init plat_irq_setup(void)
{

2
arch/sh/kernel/cpu/sh2a/setup-sh7201.c
View file

@ -357,7 +357,7 @@ static int __init sh7201_devices_setup(void)
return platform_add_devices(sh7201_devices,
ARRAY_SIZE(sh7201_devices));
}
__initcall(sh7201_devices_setup);
arch_initcall(sh7201_devices_setup);
void __init plat_irq_setup(void)
{

2
arch/sh/kernel/cpu/sh2a/setup-sh7203.c
View file

@ -367,7 +367,7 @@ static int __init sh7203_devices_setup(void)
return platform_add_devices(sh7203_devices,
ARRAY_SIZE(sh7203_devices));
}
__initcall(sh7203_devices_setup);
arch_initcall(sh7203_devices_setup);
void __init plat_irq_setup(void)
{

2
arch/sh/kernel/cpu/sh2a/setup-sh7206.c
View file

@ -338,7 +338,7 @@ static int __init sh7206_devices_setup(void)
return platform_add_devices(sh7206_devices,
ARRAY_SIZE(sh7206_devices));
}
__initcall(sh7206_devices_setup);
arch_initcall(sh7206_devices_setup);
void __init plat_irq_setup(void)
{

2
arch/sh/kernel/cpu/sh3/setup-sh7705.c
View file

@ -222,7 +222,7 @@ static int __init sh7705_devices_setup(void)
return platform_add_devices(sh7705_devices,
ARRAY_SIZE(sh7705_devices));
}
__initcall(sh7705_devices_setup);
arch_initcall(sh7705_devices_setup);
static struct platform_device *sh7705_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh3/setup-sh770x.c
View file

@ -250,7 +250,7 @@ static int __init sh770x_devices_setup(void)
return platform_add_devices(sh770x_devices,
ARRAY_SIZE(sh770x_devices));
}
__initcall(sh770x_devices_setup);
arch_initcall(sh770x_devices_setup);
static struct platform_device *sh770x_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh3/setup-sh7710.c
View file

@ -226,7 +226,7 @@ static int __init sh7710_devices_setup(void)
return platform_add_devices(sh7710_devices,
ARRAY_SIZE(sh7710_devices));
}
__initcall(sh7710_devices_setup);
arch_initcall(sh7710_devices_setup);
static struct platform_device *sh7710_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh3/setup-sh7720.c
View file

@ -388,7 +388,7 @@ static int __init sh7720_devices_setup(void)
return platform_add_devices(sh7720_devices,
ARRAY_SIZE(sh7720_devices));
}
__initcall(sh7720_devices_setup);
arch_initcall(sh7720_devices_setup);
static struct platform_device *sh7720_early_devices[] __initdata = {
&cmt0_device,

2
arch/sh/kernel/cpu/sh4/setup-sh4-202.c
View file

@ -138,7 +138,7 @@ static int __init sh4202_devices_setup(void)
return platform_add_devices(sh4202_devices,
ARRAY_SIZE(sh4202_devices));
}
__initcall(sh4202_devices_setup);
arch_initcall(sh4202_devices_setup);
static struct platform_device *sh4202_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4/setup-sh7750.c
View file

@ -239,7 +239,7 @@ static int __init sh7750_devices_setup(void)
return platform_add_devices(sh7750_devices,
ARRAY_SIZE(sh7750_devices));
}
__initcall(sh7750_devices_setup);
arch_initcall(sh7750_devices_setup);
static struct platform_device *sh7750_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4/setup-sh7760.c
View file

@ -265,7 +265,7 @@ static int __init sh7760_devices_setup(void)
return platform_add_devices(sh7760_devices,
ARRAY_SIZE(sh7760_devices));
}
__initcall(sh7760_devices_setup);
arch_initcall(sh7760_devices_setup);
static struct platform_device *sh7760_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7343.c
View file

@ -325,7 +325,7 @@ static int __init sh7343_devices_setup(void)
return platform_add_devices(sh7343_devices,
ARRAY_SIZE(sh7343_devices));
}
__initcall(sh7343_devices_setup);
arch_initcall(sh7343_devices_setup);
static struct platform_device *sh7343_early_devices[] __initdata = {
&cmt_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7366.c
View file

@ -318,7 +318,7 @@ static int __init sh7366_devices_setup(void)
return platform_add_devices(sh7366_devices,
ARRAY_SIZE(sh7366_devices));
}
__initcall(sh7366_devices_setup);
arch_initcall(sh7366_devices_setup);
static struct platform_device *sh7366_early_devices[] __initdata = {
&cmt_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7722.c
View file

@ -359,7 +359,7 @@ static int __init sh7722_devices_setup(void)
return platform_add_devices(sh7722_devices,
ARRAY_SIZE(sh7722_devices));
}
__initcall(sh7722_devices_setup);
arch_initcall(sh7722_devices_setup);
static struct platform_device *sh7722_early_devices[] __initdata = {
&cmt_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7723.c
View file

@ -473,7 +473,7 @@ static int __init sh7723_devices_setup(void)
return platform_add_devices(sh7723_devices,
ARRAY_SIZE(sh7723_devices));
}
__initcall(sh7723_devices_setup);
arch_initcall(sh7723_devices_setup);
static struct platform_device *sh7723_early_devices[] __initdata = {
&cmt_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7724.c
View file

@ -508,7 +508,7 @@ static int __init sh7724_devices_setup(void)
return platform_add_devices(sh7724_devices,
ARRAY_SIZE(sh7724_devices));
}
device_initcall(sh7724_devices_setup);
arch_initcall(sh7724_devices_setup);
static struct platform_device *sh7724_early_devices[] __initdata = {
&cmt_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7763.c
View file

@ -314,7 +314,7 @@ static int __init sh7763_devices_setup(void)
return platform_add_devices(sh7763_devices,
ARRAY_SIZE(sh7763_devices));
}
__initcall(sh7763_devices_setup);
arch_initcall(sh7763_devices_setup);
static struct platform_device *sh7763_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7770.c
View file

@ -368,7 +368,7 @@ static int __init sh7770_devices_setup(void)
return platform_add_devices(sh7770_devices,
ARRAY_SIZE(sh7770_devices));
}
__initcall(sh7770_devices_setup);
arch_initcall(sh7770_devices_setup);
static struct platform_device *sh7770_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7780.c
View file

@ -256,7 +256,7 @@ static int __init sh7780_devices_setup(void)
return platform_add_devices(sh7780_devices,
ARRAY_SIZE(sh7780_devices));
}
__initcall(sh7780_devices_setup);
arch_initcall(sh7780_devices_setup);
static struct platform_device *sh7780_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7785.c
View file

@ -263,7 +263,7 @@ static int __init sh7785_devices_setup(void)
return platform_add_devices(sh7785_devices,
ARRAY_SIZE(sh7785_devices));
}
__initcall(sh7785_devices_setup);
arch_initcall(sh7785_devices_setup);
static struct platform_device *sh7785_early_devices[] __initdata = {
&tmu0_device,

2
arch/sh/kernel/cpu/sh4a/setup-sh7786.c
View file

@ -547,7 +547,7 @@ static int __init sh7786_devices_setup(void)
return platform_add_devices(sh7786_devices,
ARRAY_SIZE(sh7786_devices));
}
device_initcall(sh7786_devices_setup);
arch_initcall(sh7786_devices_setup);
void __init plat_early_device_setup(void)
{

2
arch/sh/kernel/cpu/sh4a/setup-shx3.c
View file

@ -256,7 +256,7 @@ static int __init shx3_devices_setup(void)
return platform_add_devices(shx3_devices,
ARRAY_SIZE(shx3_devices));
}
__initcall(shx3_devices_setup);
arch_initcall(shx3_devices_setup);
void __init plat_early_device_setup(void)
{

2
arch/sh/kernel/cpu/sh5/setup-sh5.c
View file

@ -186,7 +186,7 @@ static int __init sh5_devices_setup(void)
return platform_add_devices(sh5_devices,
ARRAY_SIZE(sh5_devices));
}
__initcall(sh5_devices_setup);
arch_initcall(sh5_devices_setup);
void __init plat_early_device_setup(void)
{

2
arch/x86/Kconfig
View file

@ -24,6 +24,7 @@ config X86
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_PERF_COUNTERS if (!M386 && !M486)
select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select ARCH_WANT_OPTIONAL_GPIOLIB
@ -742,7 +743,6 @@ config X86_UP_IOAPIC
config X86_LOCAL_APIC
def_bool y
depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC
select HAVE_PERF_COUNTERS if (!M386 && !M486)
config X86_IO_APIC
def_bool y

8
arch/x86/kernel/apic/x2apic_cluster.c
View file

@ -17,11 +17,13 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
return x2apic_enabled();
}
/* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */
/*
* need to use more than cpu 0, because we need more vectors when
* MSI-X are used.
*/
static const struct cpumask *x2apic_target_cpus(void)
{
return cpumask_of(0);
return cpu_online_mask;
}
/*

8
arch/x86/kernel/apic/x2apic_phys.c
View file

@ -27,11 +27,13 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
return 0;
}
/* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */
/*
* need to use more than cpu 0, because we need more vectors when
* MSI-X are used.
*/
static const struct cpumask *x2apic_target_cpus(void)
{
return cpumask_of(0);
return cpu_online_mask;
}
static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask)

7
arch/x86/kernel/cpu/amd.c
View file

@ -400,6 +400,13 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
level = cpuid_eax(1);
if((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58)
set_cpu_cap(c, X86_FEATURE_REP_GOOD);
/*
* Some BIOSes incorrectly force this feature, but only K8
* revision D (model = 0x14) and later actually support it.
*/
if (c->x86_model < 0x14)
clear_cpu_cap(c, X86_FEATURE_LAHF_LM);
}
if (c->x86 == 0x10 || c->x86 == 0x11)
set_cpu_cap(c, X86_FEATURE_REP_GOOD);

48
arch/x86/kernel/cpu/common.c
View file

@ -59,7 +59,30 @@ void __init setup_cpu_local_masks(void)
alloc_bootmem_cpumask_var(&cpu_sibling_setup_mask);
}
static const struct cpu_dev *this_cpu __cpuinitdata;
static void __cpuinit default_init(struct cpuinfo_x86 *c)
{
#ifdef CONFIG_X86_64
display_cacheinfo(c);
#else
/* Not much we can do here... */
/* Check if at least it has cpuid */
if (c->cpuid_level == -1) {
/* No cpuid. It must be an ancient CPU */
if (c->x86 == 4)
strcpy(c->x86_model_id, "486");
else if (c->x86 == 3)
strcpy(c->x86_model_id, "386");
}
#endif
}
static const struct cpu_dev __cpuinitconst default_cpu = {
.c_init = default_init,
.c_vendor = "Unknown",
.c_x86_vendor = X86_VENDOR_UNKNOWN,
};
static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu;
DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
#ifdef CONFIG_X86_64
@ -332,29 +355,6 @@ void switch_to_new_gdt(int cpu)
static const struct cpu_dev *__cpuinitdata cpu_devs[X86_VENDOR_NUM] = {};
static void __cpuinit default_init(struct cpuinfo_x86 *c)
{
#ifdef CONFIG_X86_64
display_cacheinfo(c);
#else
/* Not much we can do here... */
/* Check if at least it has cpuid */
if (c->cpuid_level == -1) {
/* No cpuid. It must be an ancient CPU */
if (c->x86 == 4)
strcpy(c->x86_model_id, "486");
else if (c->x86 == 3)
strcpy(c->x86_model_id, "386");
}
#endif
}
static const struct cpu_dev __cpuinitconst default_cpu = {
.c_init = default_init,
.c_vendor = "Unknown",
.c_x86_vendor = X86_VENDOR_UNKNOWN,
};
static void __cpuinit get_model_name(struct cpuinfo_x86 *c)
{
unsigned int *v;

18
arch/x86/kernel/cpu/mcheck/therm_throt.c
View file

@ -36,6 +36,7 @@
static DEFINE_PER_CPU(__u64, next_check) = INITIAL_JIFFIES;
static DEFINE_PER_CPU(unsigned long, thermal_throttle_count);
static DEFINE_PER_CPU(bool, thermal_throttle_active);
static atomic_t therm_throt_en = ATOMIC_INIT(0);
@ -96,24 +97,27 @@ static int therm_throt_process(int curr)
{
unsigned int cpu = smp_processor_id();
__u64 tmp_jiffs = get_jiffies_64();
bool was_throttled = __get_cpu_var(thermal_throttle_active);
bool is_throttled = __get_cpu_var(thermal_throttle_active) = curr;
if (curr)
if (is_throttled)
__get_cpu_var(thermal_throttle_count)++;
if (time_before64(tmp_jiffs, __get_cpu_var(next_check)))
if (!(was_throttled ^ is_throttled) &&
time_before64(tmp_jiffs, __get_cpu_var(next_check)))
return 0;
__get_cpu_var(next_check) = tmp_jiffs + CHECK_INTERVAL;
/* if we just entered the thermal event */
if (curr) {
if (is_throttled) {
printk(KERN_CRIT "CPU%d: Temperature above threshold, "
"cpu clock throttled (total events = %lu)\n", cpu,
__get_cpu_var(thermal_throttle_count));
"cpu clock throttled (total events = %lu)\n",
cpu, __get_cpu_var(thermal_throttle_count));
add_taint(TAINT_MACHINE_CHECK);
} else {
printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu);
} else if (was_throttled) {
printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu);
}
return 1;

42
arch/x86/kernel/cpu/perf_counter.c
View file

@ -97,6 +97,7 @@ struct x86_pmu {
int num_counters_fixed;
int counter_bits;
u64 counter_mask;
int apic;
u64 max_period;
u64 intel_ctrl;
void (*enable_bts)(u64 config);
@ -116,8 +117,8 @@ static const u64 p6_perfmon_event_map[] =
{
[PERF_COUNT_HW_CPU_CYCLES] = 0x0079,
[PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0000,
[PERF_COUNT_HW_CACHE_MISSES] = 0x0000,
[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e,
[PERF_COUNT_HW_CACHE_MISSES] = 0x012e,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
[PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
[PERF_COUNT_HW_BUS_CYCLES] = 0x0062,
@ -660,6 +661,7 @@ static DEFINE_MUTEX(pmc_reserve_mutex);
static bool reserve_pmc_hardware(void)
{
#ifdef CONFIG_X86_LOCAL_APIC
int i;
if (nmi_watchdog == NMI_LOCAL_APIC)
@ -674,9 +676,11 @@ static bool reserve_pmc_hardware(void)
if (!reserve_evntsel_nmi(x86_pmu.eventsel + i))
goto eventsel_fail;
}
#endif
return true;
#ifdef CONFIG_X86_LOCAL_APIC
eventsel_fail:
for (i--; i >= 0; i--)
release_evntsel_nmi(x86_pmu.eventsel + i);
@ -691,10 +695,12 @@ perfctr_fail:
enable_lapic_nmi_watchdog();
return false;
#endif
}
static void release_pmc_hardware(void)
{
#ifdef CONFIG_X86_LOCAL_APIC
int i;
for (i = 0; i < x86_pmu.num_counters; i++) {
@ -704,6 +710,7 @@ static void release_pmc_hardware(void)
if (nmi_watchdog == NMI_LOCAL_APIC)
enable_lapic_nmi_watchdog();
#endif
}
static inline bool bts_available(void)
@ -934,6 +941,15 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
hwc->sample_period = x86_pmu.max_period;
hwc->last_period = hwc->sample_period;
atomic64_set(&hwc->period_left, hwc->sample_period);
} else {
/*
* If we have a PMU initialized but no APIC
* interrupts, we cannot sample hardware
* counters (user-space has to fall back and
* sample via a hrtimer based software counter):
*/
if (!x86_pmu.apic)
return -EOPNOTSUPP;
}
counter->destroy = hw_perf_counter_destroy;
@ -1755,18 +1771,22 @@ void smp_perf_pending_interrupt(struct pt_regs *regs)
void set_perf_counter_pending(void)
{
#ifdef CONFIG_X86_LOCAL_APIC
apic->send_IPI_self(LOCAL_PENDING_VECTOR);
#endif
}
void perf_counters_lapic_init(void)
{
if (!x86_pmu_initialized())
#ifdef CONFIG_X86_LOCAL_APIC
if (!x86_pmu.apic || !x86_pmu_initialized())
return;
/*
* Always use NMI for PMU
*/
apic_write(APIC_LVTPC, APIC_DM_NMI);
#endif
}
static int __kprobes
@ -1790,7 +1810,9 @@ perf_counter_nmi_handler(struct notifier_block *self,
regs = args->regs;
#ifdef CONFIG_X86_LOCAL_APIC
apic_write(APIC_LVTPC, APIC_DM_NMI);
#endif
/*
* Can't rely on the handled return value to say it was our NMI, two
* counters could trigger 'simultaneously' raising two back-to-back NMIs.
@ -1821,6 +1843,7 @@ static struct x86_pmu p6_pmu = {
.event_map = p6_pmu_event_map,
.raw_event = p6_pmu_raw_event,
.max_events = ARRAY_SIZE(p6_perfmon_event_map),
.apic = 1,
.max_period = (1ULL << 31) - 1,
.version = 0,
.num_counters = 2,
@ -1847,6 +1870,7 @@ static struct x86_pmu intel_pmu = {
.event_map = intel_pmu_event_map,
.raw_event = intel_pmu_raw_event,
.max_events = ARRAY_SIZE(intel_perfmon_event_map),
.apic = 1,
/*
* Intel PMCs cannot be accessed sanely above 32 bit width,
* so we install an artificial 1<<31 period regardless of
@ -1872,6 +1896,7 @@ static struct x86_pmu amd_pmu = {
.num_counters = 4,
.counter_bits = 48,
.counter_mask = (1ULL << 48) - 1,
.apic = 1,
/* use highest bit to detect overflow */
.max_period = (1ULL << 47) - 1,
};
@ -1897,12 +1922,13 @@ static int p6_pmu_init(void)
return -ENODEV;
}
if (!cpu_has_apic) {
pr_info("no Local APIC, try rebooting with lapic");
return -ENODEV;
}
x86_pmu = p6_pmu;
x86_pmu = p6_pmu;
if (!cpu_has_apic) {
pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
pr_info("no hardware sampling interrupt available.\n");
x86_pmu.apic = 0;
}
return 0;
}

2
arch/x86/kernel/efi.c
View file

@ -354,7 +354,7 @@ void __init efi_init(void)
*/
c16 = tmp = early_ioremap(efi.systab->fw_vendor, 2);
if (c16) {
for (i = 0; i < sizeof(vendor) && *c16; ++i)
for (i = 0; i < sizeof(vendor) - 1 && *c16; ++i)
vendor[i] = *c16++;
vendor[i] = '\0';
} else

16
arch/x86/kernel/reboot.c
View file

@ -405,7 +405,7 @@ EXPORT_SYMBOL(machine_real_restart);
#endif /* CONFIG_X86_32 */
/*
* Apple MacBook5,2 (2009 MacBook) needs reboot=p
* Some Apple MacBook and MacBookPro's needs reboot=p to be able to reboot
*/
static int __init set_pci_reboot(const struct dmi_system_id *d)
{
@ -418,12 +418,20 @@ static int __init set_pci_reboot(const struct dmi_system_id *d)
}
static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
{ /* Handle problems with rebooting on Apple MacBook5,2 */
{ /* Handle problems with rebooting on Apple MacBook5 */
.callback = set_pci_reboot,
.ident = "Apple MacBook",
.ident = "Apple MacBook5",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,2"),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5"),
},
},
{ /* Handle problems with rebooting on Apple MacBookPro5 */
.callback = set_pci_reboot,
.ident = "Apple MacBookPro5",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5"),
},
},
{ }

29
arch/x86/kernel/tsc.c
View file

@ -275,15 +275,20 @@ static unsigned long pit_calibrate_tsc(u32 latch, unsigned long ms, int loopmin)
* use the TSC value at the transitions to calculate a pretty
* good value for the TSC frequencty.
*/
static inline int pit_verify_msb(unsigned char val)
{
/* Ignore LSB */
inb(0x42);
return inb(0x42) == val;
}
static inline int pit_expect_msb(unsigned char val, u64 *tscp, unsigned long *deltap)
{
int count;
u64 tsc = 0;
for (count = 0; count < 50000; count++) {
/* Ignore LSB */
inb(0x42);
if (inb(0x42) != val)
if (!pit_verify_msb(val))
break;
tsc = get_cycles();
}
@ -336,8 +341,7 @@ static unsigned long quick_pit_calibrate(void)
* to do that is to just read back the 16-bit counter
* once from the PIT.
*/
inb(0x42);
inb(0x42);
pit_verify_msb(0);
if (pit_expect_msb(0xff, &tsc, &d1)) {
for (i = 1; i <= MAX_QUICK_PIT_ITERATIONS; i++) {
@ -348,8 +352,19 @@ static unsigned long quick_pit_calibrate(void)
* Iterate until the error is less than 500 ppm
*/
delta -= tsc;
if (d1+d2 < delta >> 11)
goto success;
if (d1+d2 >= delta >> 11)
continue;
/*
* Check the PIT one more time to verify that
* all TSC reads were stable wrt the PIT.
*
* This also guarantees serialization of the
* last cycle read ('d2') in pit_expect_msb.
*/
if (!pit_verify_msb(0xfe - i))
break;
goto success;
}
}
printk("Fast TSC calibration failed\n");

2
arch/x86/kernel/vmi_32.c
View file

@ -441,7 +441,7 @@ vmi_startup_ipi_hook(int phys_apicid, unsigned long start_eip,
ap.ds = __USER_DS;
ap.es = __USER_DS;
ap.fs = __KERNEL_PERCPU;
ap.gs = 0;
ap.gs = __KERNEL_STACK_CANARY;
ap.eflags = 0;

3
arch/x86/kvm/i8254.c
View file

@ -104,6 +104,9 @@ static s64 __kpit_elapsed(struct kvm *kvm)
ktime_t remaining;
struct kvm_kpit_state *ps = &kvm->arch.vpit->pit_state;
if (!ps->pit_timer.period)
return 0;
/*
* The Counter does not stop when it reaches zero. In
* Modes 0, 1, 4, and 5 the Counter ``wraps around'' to

48
arch/x86/kvm/mmu.c
View file

@ -489,16 +489,20 @@ static unsigned long *gfn_to_rmap(struct kvm *kvm, gfn_t gfn, int lpage)
*
* If rmapp bit zero is one, (then rmap & ~1) points to a struct kvm_rmap_desc
* containing more mappings.
*
* Returns the number of rmap entries before the spte was added or zero if
* the spte was not added.
*
*/
static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage)
static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage)
{
struct kvm_mmu_page *sp;
struct kvm_rmap_desc *desc;
unsigned long *rmapp;
int i;
int i, count = 0;
if (!is_rmap_pte(*spte))
return;
return count;
gfn = unalias_gfn(vcpu->kvm, gfn);
sp = page_header(__pa(spte));
sp->gfns[spte - sp->spt] = gfn;
@ -515,8 +519,10 @@ static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage)
} else {
rmap_printk("rmap_add: %p %llx many->many\n", spte, *spte);
desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
while (desc->shadow_ptes[RMAP_EXT-1] && desc->more)
while (desc->shadow_ptes[RMAP_EXT-1] && desc->more) {
desc = desc->more;
count += RMAP_EXT;
}
if (desc->shadow_ptes[RMAP_EXT-1]) {
desc->more = mmu_alloc_rmap_desc(vcpu);
desc = desc->more;
@ -525,6 +531,7 @@ static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage)
;
desc->shadow_ptes[i] = spte;
}
return count;
}
static void rmap_desc_remove_entry(unsigned long *rmapp,
@ -754,6 +761,19 @@ static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp)
return young;
}
#define RMAP_RECYCLE_THRESHOLD 1000
static void rmap_recycle(struct kvm_vcpu *vcpu, gfn_t gfn, int lpage)
{
unsigned long *rmapp;
gfn = unalias_gfn(vcpu->kvm, gfn);
rmapp = gfn_to_rmap(vcpu->kvm, gfn, lpage);
kvm_unmap_rmapp(vcpu->kvm, rmapp);
kvm_flush_remote_tlbs(vcpu->kvm);
}
int kvm_age_hva(struct kvm *kvm, unsigned long hva)
{
return kvm_handle_hva(kvm, hva, kvm_age_rmapp);
@ -1407,24 +1427,25 @@ static int kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp)
*/
void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
{
int used_pages;
used_pages = kvm->arch.n_alloc_mmu_pages - kvm->arch.n_free_mmu_pages;
used_pages = max(0, used_pages);
/*
* If we set the number of mmu pages to be smaller be than the
* number of actived pages , we must to free some mmu pages before we
* change the value
*/
if ((kvm->arch.n_alloc_mmu_pages - kvm->arch.n_free_mmu_pages) >
kvm_nr_mmu_pages) {
int n_used_mmu_pages = kvm->arch.n_alloc_mmu_pages
- kvm->arch.n_free_mmu_pages;
while (n_used_mmu_pages > kvm_nr_mmu_pages) {
if (used_pages > kvm_nr_mmu_pages) {
while (used_pages > kvm_nr_mmu_pages) {
struct kvm_mmu_page *page;
page = container_of(kvm->arch.active_mmu_pages.prev,
struct kvm_mmu_page, link);
kvm_mmu_zap_page(kvm, page);
n_used_mmu_pages--;
used_pages--;
}
kvm->arch.n_free_mmu_pages = 0;
}
@ -1740,6 +1761,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
{
int was_rmapped = 0;
int was_writeble = is_writeble_pte(*shadow_pte);
int rmap_count;
pgprintk("%s: spte %llx access %x write_fault %d"
" user_fault %d gfn %lx\n",
@ -1781,9 +1803,11 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
page_header_update_slot(vcpu->kvm, shadow_pte, gfn);
if (!was_rmapped) {
rmap_add(vcpu, shadow_pte, gfn, largepage);
rmap_count = rmap_add(vcpu, shadow_pte, gfn, largepage);
if (!is_rmap_pte(*shadow_pte))
kvm_release_pfn_clean(pfn);
if (rmap_count > RMAP_RECYCLE_THRESHOLD)
rmap_recycle(vcpu, gfn, largepage);
} else {
if (was_writeble)
kvm_release_pfn_dirty(pfn);

6
arch/x86/kvm/svm.c
View file

@ -711,6 +711,7 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
svm->vmcb->control.tsc_offset += delta;
vcpu->cpu = cpu;
kvm_migrate_timers(vcpu);
svm->asid_generation = 0;
}
for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
@ -1031,7 +1032,6 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *svm_data)
svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
}
svm->vcpu.cpu = svm_data->cpu;
svm->asid_generation = svm_data->asid_generation;
svm->vmcb->control.asid = svm_data->next_asid++;
}
@ -2300,8 +2300,8 @@ static void pre_svm_run(struct vcpu_svm *svm)
struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING;
if (svm->vcpu.cpu != cpu ||
svm->asid_generation != svm_data->asid_generation)
/* FIXME: handle wraparound of asid_generation */
if (svm->asid_generation != svm_data->asid_generation)
new_asid(svm, svm_data);
}

6
arch/x86/kvm/vmx.c
View file

@ -3157,8 +3157,8 @@ static void handle_invalid_guest_state(struct kvm_vcpu *vcpu,
struct vcpu_vmx *vmx = to_vmx(vcpu);
enum emulation_result err = EMULATE_DONE;
preempt_enable();
local_irq_enable();
preempt_enable();
while (!guest_state_valid(vcpu)) {
err = emulate_instruction(vcpu, kvm_run, 0, 0, 0);
@ -3168,7 +3168,7 @@ static void handle_invalid_guest_state(struct kvm_vcpu *vcpu,
if (err != EMULATE_DONE) {
kvm_report_emulation_failure(vcpu, "emulation failure");
return;
break;
}
if (signal_pending(current))
@ -3177,8 +3177,8 @@ static void handle_invalid_guest_state(struct kvm_vcpu *vcpu,
schedule();
}
local_irq_disable();
preempt_disable();
local_irq_disable();
vmx->invalid_state_emulation_result = err;
}

44
arch/x86/kvm/x86.c
View file

@ -704,11 +704,48 @@ static bool msr_mtrr_valid(unsigned msr)
return false;
}
static bool valid_pat_type(unsigned t)
{
return t < 8 && (1 << t) & 0xf3; /* 0, 1, 4, 5, 6, 7 */
}
static bool valid_mtrr_type(unsigned t)
{
return t < 8 && (1 << t) & 0x73; /* 0, 1, 4, 5, 6 */
}
static bool mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data)
{
int i;
if (!msr_mtrr_valid(msr))
return false;
if (msr == MSR_IA32_CR_PAT) {
for (i = 0; i < 8; i++)
if (!valid_pat_type((data >> (i * 8)) & 0xff))
return false;
return true;
} else if (msr == MSR_MTRRdefType) {
if (data & ~0xcff)
return false;
return valid_mtrr_type(data & 0xff);
} else if (msr >= MSR_MTRRfix64K_00000 && msr <= MSR_MTRRfix4K_F8000) {
for (i = 0; i < 8 ; i++)
if (!valid_mtrr_type((data >> (i * 8)) & 0xff))
return false;
return true;
}
/* variable MTRRs */
return valid_mtrr_type(data & 0xff);
}
static int set_msr_mtrr(struct kvm_vcpu *vcpu, u32 msr, u64 data)
{
u64 *p = (u64 *)&vcpu->arch.mtrr_state.fixed_ranges;
if (!msr_mtrr_valid(msr))
if (!mtrr_valid(vcpu, msr, data))
return 1;
if (msr == MSR_MTRRdefType) {
@ -1079,14 +1116,13 @@ long kvm_arch_dev_ioctl(struct file *filp,
if (copy_to_user(user_msr_list, &msr_list, sizeof msr_list))
goto out;
r = -E2BIG;
if (n < num_msrs_to_save)
if (n < msr_list.nmsrs)
goto out;
r = -EFAULT;
if (copy_to_user(user_msr_list->indices, &msrs_to_save,
num_msrs_to_save * sizeof(u32)))
goto out;
if (copy_to_user(user_msr_list->indices
+ num_msrs_to_save * sizeof(u32),
if (copy_to_user(user_msr_list->indices + num_msrs_to_save,
&emulated_msrs,
ARRAY_SIZE(emulated_msrs) * sizeof(u32)))
goto out;

79
drivers/ata/ahci.c
View file

@ -219,6 +219,8 @@ enum {
AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */
AHCI_HFLAG_YES_NCQ = (1 << 9), /* force NCQ cap on */
AHCI_HFLAG_NO_SUSPEND = (1 << 10), /* don't suspend */
AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = (1 << 11), /* treat SRST timeout as
link offline */
/* ap->flags bits */
@ -1663,6 +1665,7 @@ static int ahci_do_softreset(struct ata_link *link, unsigned int *class,
int (*check_ready)(struct ata_link *link))
{
struct ata_port *ap = link->ap;
struct ahci_host_priv *hpriv = ap->host->private_data;
const char *reason = NULL;
unsigned long now, msecs;
struct ata_taskfile tf;
@ -1701,12 +1704,21 @@ static int ahci_do_softreset(struct ata_link *link, unsigned int *class,
/* wait for link to become ready */
rc = ata_wait_after_reset(link, deadline, check_ready);
/* link occupied, -ENODEV too is an error */
if (rc) {
if (rc == -EBUSY && hpriv->flags & AHCI_HFLAG_SRST_TOUT_IS_OFFLINE) {
/*
* Workaround for cases where link online status can't
* be trusted. Treat device readiness timeout as link
* offline.
*/
ata_link_printk(link, KERN_INFO,
"device not ready, treating as offline\n");
*class = ATA_DEV_NONE;
} else if (rc) {
/* link occupied, -ENODEV too is an error */
reason = "device not ready";
goto fail;
}
*class = ahci_dev_classify(ap);
} else
*class = ahci_dev_classify(ap);
DPRINTK("EXIT, class=%u\n", *class);
return 0;
@ -1773,7 +1785,8 @@ static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
irq_sts = readl(port_mmio + PORT_IRQ_STAT);
if (irq_sts & PORT_IRQ_BAD_PMP) {
ata_link_printk(link, KERN_WARNING,
"failed due to HW bug, retry pmp=0\n");
"applying SB600 PMP SRST workaround "
"and retrying\n");
rc = ahci_do_softreset(link, class, 0, deadline,
ahci_check_ready);
}
@ -2726,6 +2739,56 @@ static bool ahci_broken_suspend(struct pci_dev *pdev)
return !ver || strcmp(ver, dmi->driver_data) < 0;
}
static bool ahci_broken_online(struct pci_dev *pdev)
{
#define ENCODE_BUSDEVFN(bus, slot, func) \
(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
static const struct dmi_system_id sysids[] = {
/*
* There are several gigabyte boards which use
* SIMG5723s configured as hardware RAID. Certain
* 5723 firmware revisions shipped there keep the link
* online but fail to answer properly to SRST or
* IDENTIFY when no device is attached downstream
* causing libata to retry quite a few times leading
* to excessive detection delay.
*
* As these firmwares respond to the second reset try
* with invalid device signature, considering unknown
* sig as offline works around the problem acceptably.
*/
{
.ident = "EP45-DQ6",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR,
"Gigabyte Technology Co., Ltd."),
DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
},
.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
},
{
.ident = "EP45-DS5",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR,
"Gigabyte Technology Co., Ltd."),
DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
},
.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
},
{ } /* terminate list */
};
#undef ENCODE_BUSDEVFN
const struct dmi_system_id *dmi = dmi_first_match(sysids);
unsigned int val;
if (!dmi)
return false;
val = (unsigned long)dmi->driver_data;
return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
}
static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version;
@ -2841,6 +2904,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
"BIOS update required for suspend/resume\n");
}
if (ahci_broken_online(pdev)) {
hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
dev_info(&pdev->dev,
"online status unreliable, applying workaround\n");
}
/* CAP.NP sometimes indicate the index of the last enabled
* port, at other times, that of the last possible port, so
* determining the maximum port number requires looking at

3
drivers/ata/libata-core.c
View file

@ -4302,6 +4302,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "WDC WD2500JD-00HBB0", "WD-WMAL71490727", ATA_HORKAGE_BROKEN_HPA },
{ "MAXTOR 6L080L4", "A93.0500", ATA_HORKAGE_BROKEN_HPA },
/* this one allows HPA unlocking but fails IOs on the area */
{ "OCZ-VERTEX", "1.30", ATA_HORKAGE_BROKEN_HPA },
/* Devices which report 1 sector over size HPA */
{ "ST340823A", NULL, ATA_HORKAGE_HPA_SIZE, },
{ "ST320413A", NULL, ATA_HORKAGE_HPA_SIZE, },

17
drivers/ata/pata_at91.c
View file

@ -250,7 +250,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
ata_port_desc(ap, "no IRQ, using PIO polling");
}
info = kzalloc(sizeof(*info), GFP_KERNEL);
info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
if (!info) {
dev_err(dev, "failed to allocate memory for private data\n");
@ -275,7 +275,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
if (!info->ide_addr) {
dev_err(dev, "failed to map IO base\n");
ret = -ENOMEM;
goto err_ide_ioremap;
goto err_put;
}
info->alt_addr = devm_ioremap(dev,
@ -284,7 +284,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
if (!info->alt_addr) {
dev_err(dev, "failed to map CTL base\n");
ret = -ENOMEM;
goto err_alt_ioremap;
goto err_put;
}
ap->ioaddr.cmd_addr = info->ide_addr;
@ -303,13 +303,8 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
irq ? ata_sff_interrupt : NULL,
irq_flags, &pata_at91_sht);
err_alt_ioremap:
devm_iounmap(dev, info->ide_addr);
err_ide_ioremap:
err_put:
clk_put(info->mck);
kfree(info);
return ret;
}
@ -317,7 +312,6 @@ static int __devexit pata_at91_remove(struct platform_device *pdev)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
struct at91_ide_info *info;
struct device *dev = &pdev->dev;
if (!host)
return 0;
@ -328,11 +322,8 @@ static int __devexit pata_at91_remove(struct platform_device *pdev)
if (!info)
return 0;
devm_iounmap(dev, info->ide_addr);
devm_iounmap(dev, info->alt_addr);
clk_put(info->mck);
kfree(info);
return 0;
}

19
drivers/ata/pata_atiixp.c
View file

@ -1,6 +1,7 @@
/*
* pata_atiixp.c - ATI PATA for new ATA layer
* (C) 2005 Red Hat Inc
* (C) 2009 Bartlomiej Zolnierkiewicz
*
* Based on
*
@ -61,20 +62,19 @@ static void atiixp_set_pio_timing(struct ata_port *ap, struct ata_device *adev,
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
int dn = 2 * ap->port_no + adev->devno;
/* Check this is correct - the order is odd in both drivers */
int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);
u16 pio_mode_data, pio_timing_data;
u32 pio_timing_data;
u16 pio_mode_data;
pci_read_config_word(pdev, ATIIXP_IDE_PIO_MODE, &pio_mode_data);
pio_mode_data &= ~(0x7 << (4 * dn));
pio_mode_data |= pio << (4 * dn);
pci_write_config_word(pdev, ATIIXP_IDE_PIO_MODE, pio_mode_data);
pci_read_config_word(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data);
pci_read_config_dword(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data);
pio_timing_data &= ~(0xFF << timing_shift);
pio_timing_data |= (pio_timings[pio] << timing_shift);
pci_write_config_word(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data);
pci_write_config_dword(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data);
}
/**
@ -119,16 +119,17 @@ static void atiixp_set_dmamode(struct ata_port *ap, struct ata_device *adev)
udma_mode_data |= dma << (4 * dn);
pci_write_config_word(pdev, ATIIXP_IDE_UDMA_MODE, udma_mode_data);
} else {
u16 mwdma_timing_data;
/* Check this is correct - the order is odd in both drivers */
int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);
u32 mwdma_timing_data;
dma -= XFER_MW_DMA_0;
pci_read_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, &mwdma_timing_data);
pci_read_config_dword(pdev, ATIIXP_IDE_MWDMA_TIMING,
&mwdma_timing_data);
mwdma_timing_data &= ~(0xFF << timing_shift);
mwdma_timing_data |= (mwdma_timings[dma] << timing_shift);
pci_write_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, mwdma_timing_data);
pci_write_config_dword(pdev, ATIIXP_IDE_MWDMA_TIMING,
mwdma_timing_data);
}
/*
* We must now look at the PIO mode situation. We may need to

8
drivers/ata/sata_nv.c
View file

@ -602,6 +602,7 @@ MODULE_VERSION(DRV_VERSION);
static int adma_enabled;
static int swncq_enabled = 1;
static int msi_enabled;
static void nv_adma_register_mode(struct ata_port *ap)
{
@ -2459,6 +2460,11 @@ static int nv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
} else if (type == SWNCQ)
nv_swncq_host_init(host);
if (msi_enabled) {
dev_printk(KERN_NOTICE, &pdev->dev, "Using MSI\n");
pci_enable_msi(pdev);
}
pci_set_master(pdev);
return ata_host_activate(host, pdev->irq, ipriv->irq_handler,
IRQF_SHARED, ipriv->sht);
@ -2558,4 +2564,6 @@ module_param_named(adma, adma_enabled, bool, 0444);
MODULE_PARM_DESC(adma, "Enable use of ADMA (Default: false)");
module_param_named(swncq, swncq_enabled, bool, 0444);
MODULE_PARM_DESC(swncq, "Enable use of SWNCQ (Default: true)");
module_param_named(msi, msi_enabled, bool, 0444);
MODULE_PARM_DESC(msi, "Enable use of MSI (Default: false)");

3
drivers/base/platform.c
View file

@ -483,9 +483,6 @@ int platform_driver_register(struct platform_driver *drv)
drv->driver.remove = platform_drv_remove;
if (drv->shutdown)
drv->driver.shutdown = platform_drv_shutdown;
if (drv->suspend || drv->resume)
pr_warning("Platform driver '%s' needs updating - please use "
"dev_pm_ops\n", drv->driver.name);
return driver_register(&drv->driver);
}

2
drivers/char/pty.c
View file

@ -144,6 +144,8 @@ static int pty_write(struct tty_struct *tty, const unsigned char *buf,
static int pty_write_room(struct tty_struct *tty)
{
if (tty->stopped)
return 0;
return pty_space(tty->link);
}

2
drivers/gpu/drm/drm_irq.c
View file

@ -566,7 +566,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
ret = drm_vblank_get(dev, crtc);
if (ret) {
DRM_ERROR("failed to acquire vblank counter, %d\n", ret);
DRM_DEBUG("failed to acquire vblank counter, %d\n", ret);
return ret;
}
seq = drm_vblank_count(dev, crtc);

2
drivers/gpu/drm/drm_modes.c
View file

@ -566,6 +566,8 @@ void drm_mode_connector_list_update(struct drm_connector *connector)
found_it = 1;
/* if equal delete the probed mode */
mode->status = pmode->status;
/* Merge type bits together */
mode->type |= pmode->type;
list_del(&pmode->head);
drm_mode_destroy(connector->dev, pmode);
break;

4
drivers/gpu/drm/i915/i915_irq.c
View file

@ -190,7 +190,7 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int pipe)
low_frame = pipe ? PIPEBFRAMEPIXEL : PIPEAFRAMEPIXEL;
if (!i915_pipe_enabled(dev, pipe)) {
DRM_ERROR("trying to get vblank count for disabled pipe %d\n", pipe);
DRM_DEBUG("trying to get vblank count for disabled pipe %d\n", pipe);
return 0;
}
@ -219,7 +219,7 @@ u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe)
int reg = pipe ? PIPEB_FRMCOUNT_GM45 : PIPEA_FRMCOUNT_GM45;
if (!i915_pipe_enabled(dev, pipe)) {
DRM_ERROR("trying to get vblank count for disabled pipe %d\n", pipe);
DRM_DEBUG("trying to get vblank count for disabled pipe %d\n", pipe);
return 0;
}

32
drivers/md/md.c
View file

@ -359,6 +359,7 @@ static mddev_t * mddev_find(dev_t unit)
else
new->md_minor = MINOR(unit) >> MdpMinorShift;
mutex_init(&new->open_mutex);
mutex_init(&new->reconfig_mutex);
INIT_LIST_HEAD(&new->disks);
INIT_LIST_HEAD(&new->all_mddevs);
@ -1974,17 +1975,14 @@ repeat:
/* otherwise we have to go forward and ... */
mddev->events ++;
if (!mddev->in_sync || mddev->recovery_cp != MaxSector) { /* not clean */
/* .. if the array isn't clean, insist on an odd 'events' */
if ((mddev->events&1)==0) {
mddev->events++;
/* .. if the array isn't clean, an 'even' event must also go
* to spares. */
if ((mddev->events&1)==0)
nospares = 0;
}
} else {
/* otherwise insist on an even 'events' (for clean states) */
if ((mddev->events&1)) {
mddev->events++;
/* otherwise an 'odd' event must go to spares */
if ((mddev->events&1))
nospares = 0;
}
}
}
@ -3601,6 +3599,7 @@ max_sync_store(mddev_t *mddev, const char *buf, size_t len)
if (max < mddev->resync_min)
return -EINVAL;
if (max < mddev->resync_max &&
mddev->ro == 0 &&
test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
return -EBUSY;
@ -4304,12 +4303,11 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
struct gendisk *disk = mddev->gendisk;
mdk_rdev_t *rdev;
mutex_lock(&mddev->open_mutex);
if (atomic_read(&mddev->openers) > is_open) {
printk("md: %s still in use.\n",mdname(mddev));
return -EBUSY;
}
if (mddev->pers) {
err = -EBUSY;
} else if (mddev->pers) {
if (mddev->sync_thread) {
set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
@ -4367,7 +4365,10 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
set_disk_ro(disk, 1);
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
}
out:
mutex_unlock(&mddev->open_mutex);
if (err)
return err;
/*
* Free resources if final stop
*/
@ -4433,7 +4434,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
blk_integrity_unregister(disk);
md_new_event(mddev);
sysfs_notify_dirent(mddev->sysfs_state);
out:
return err;
}
@ -5518,12 +5518,12 @@ static int md_open(struct block_device *bdev, fmode_t mode)
}
BUG_ON(mddev != bdev->bd_disk->private_data);
if ((err = mutex_lock_interruptible_nested(&mddev->reconfig_mutex, 1)))
if ((err = mutex_lock_interruptible(&mddev->open_mutex)))
goto out;
err = 0;
atomic_inc(&mddev->openers);
mddev_unlock(mddev);
mutex_unlock(&mddev->open_mutex);
check_disk_change(bdev);
out:

10
drivers/md/md.h
View file

@ -223,6 +223,16 @@ struct mddev_s
* so we don't loop trying */
int in_sync; /* know to not need resync */
/* 'open_mutex' avoids races between 'md_open' and 'do_md_stop', so
* that we are never stopping an array while it is open.
* 'reconfig_mutex' protects all other reconfiguration.
* These locks are separate due to conflicting interactions
* with bdev->bd_mutex.
* Lock ordering is:
* reconfig_mutex -> bd_mutex : e.g. do_md_run -> revalidate_disk
* bd_mutex -> open_mutex: e.g. __blkdev_get -> md_open
*/
struct mutex open_mutex;
struct mutex reconfig_mutex;
atomic_t active; /* general refcount */
atomic_t openers; /* number of active opens */

34
drivers/md/raid5.c
View file

@ -3785,7 +3785,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
conf->reshape_progress < raid5_size(mddev, 0, 0)) {
sector_nr = raid5_size(mddev, 0, 0)
- conf->reshape_progress;
} else if (mddev->delta_disks > 0 &&
} else if (mddev->delta_disks >= 0 &&
conf->reshape_progress > 0)
sector_nr = conf->reshape_progress;
sector_div(sector_nr, new_data_disks);
@ -4509,7 +4509,26 @@ static int run(mddev_t *mddev)
(old_disks-max_degraded));
/* here_old is the first stripe that we might need to read
* from */
if (here_new >= here_old) {
if (mddev->delta_disks == 0) {
/* We cannot be sure it is safe to start an in-place
* reshape. It is only safe if user-space if monitoring
* and taking constant backups.
* mdadm always starts a situation like this in
* readonly mode so it can take control before
* allowing any writes. So just check for that.
*/
if ((here_new * mddev->new_chunk_sectors !=
here_old * mddev->chunk_sectors) ||
mddev->ro == 0) {
printk(KERN_ERR "raid5: in-place reshape must be started"
" in read-only mode - aborting\n");
return -EINVAL;
}
} else if (mddev->delta_disks < 0
? (here_new * mddev->new_chunk_sectors <=
here_old * mddev->chunk_sectors)
: (here_new * mddev->new_chunk_sectors >=
here_old * mddev->chunk_sectors)) {
/* Reading from the same stripe as writing to - bad */
printk(KERN_ERR "raid5: reshape_position too early for "
"auto-recovery - aborting.\n");
@ -5078,8 +5097,15 @@ static void raid5_finish_reshape(mddev_t *mddev)
mddev->degraded--;
for (d = conf->raid_disks ;
d < conf->raid_disks - mddev->delta_disks;
d++)
raid5_remove_disk(mddev, d);
d++) {
mdk_rdev_t *rdev = conf->disks[d].rdev;
if (rdev && raid5_remove_disk(mddev, d) == 0) {
char nm[20];
sprintf(nm, "rd%d", rdev->raid_disk);
sysfs_remove_link(&mddev->kobj, nm);
rdev->raid_disk = -1;
}
}
}
mddev->layout = conf->algorithm;
mddev->chunk_sectors = conf->chunk_sectors;

0
drivers/mtd/maps/sbc8240.c
View file

1
drivers/mtd/ubi/eba.c
View file

@ -1254,6 +1254,7 @@ out_free:
if (!ubi->volumes[i])
continue;
kfree(ubi->volumes[i]->eba_tbl);
ubi->volumes[i]->eba_tbl = NULL;
}
return err;
}

13
drivers/mtd/ubi/scan.c
View file

@ -781,11 +781,22 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
return -EINVAL;
}
/*
* Make sure that all PEBs have the same image sequence number.
* This allows us to detect situations when users flash UBI
* images incorrectly, so that the flash has the new UBI image
* and leftovers from the old one. This feature was added
* relatively recently, and the sequence number was always
* zero, because old UBI implementations always set it to zero.
* For this reasons, we do not panic if some PEBs have zero
* sequence number, while other PEBs have non-zero sequence
* number.
*/
image_seq = be32_to_cpu(ech->image_seq);
if (!si->image_seq_set) {
ubi->image_seq = image_seq;
si->image_seq_set = 1;
} else if (ubi->image_seq != image_seq) {
} else if (ubi->image_seq && ubi->image_seq != image_seq) {
ubi_err("bad image sequence number %d in PEB %d, "
"expected %d", image_seq, pnum, ubi->image_seq);
ubi_dbg_dump_ec_hdr(ech);

7
drivers/pci/hotplug/sgi_hotplug.c
View file

@ -90,11 +90,10 @@ static struct hotplug_slot_ops sn_hotplug_slot_ops = {
static DEFINE_MUTEX(sn_hotplug_mutex);
static ssize_t path_show (struct hotplug_slot *bss_hotplug_slot,
char *buf)
static ssize_t path_show(struct pci_slot *pci_slot, char *buf)
{
int retval = -ENOENT;
struct slot *slot = bss_hotplug_slot->private;
struct slot *slot = pci_slot->hotplug->private;
if (!slot)
return retval;
@ -103,7 +102,7 @@ static ssize_t path_show (struct hotplug_slot *bss_hotplug_slot,
return retval;
}
static struct hotplug_slot_attribute sn_slot_path_attr = __ATTR_RO(path);
static struct pci_slot_attribute sn_slot_path_attr = __ATTR_RO(path);
static int sn_pci_slot_valid(struct pci_bus *pci_bus, int device)
{

20
fs/nfs/direct.c
View file

@ -255,7 +255,7 @@ static void nfs_direct_read_release(void *calldata)
if (put_dreq(dreq))
nfs_direct_complete(dreq);
nfs_readdata_release(calldata);
nfs_readdata_free(data);
}
static const struct rpc_call_ops nfs_read_direct_ops = {
@ -314,14 +314,14 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
data->npages, 1, 0, data->pagevec, NULL);
up_read(&current->mm->mmap_sem);
if (result < 0) {
nfs_readdata_release(data);
nfs_readdata_free(data);
break;
}
if ((unsigned)result < data->npages) {
bytes = result * PAGE_SIZE;
if (bytes <= pgbase) {
nfs_direct_release_pages(data->pagevec, result);
nfs_readdata_release(data);
nfs_readdata_free(data);
break;
}
bytes -= pgbase;
@ -334,7 +334,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
data->inode = inode;
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = get_nfs_open_context(ctx);
data->args.context = ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
@ -441,7 +441,7 @@ static void nfs_direct_free_writedata(struct nfs_direct_req *dreq)
struct nfs_write_data *data = list_entry(dreq->rewrite_list.next, struct nfs_write_data, pages);
list_del(&data->pages);
nfs_direct_release_pages(data->pagevec, data->npages);
nfs_writedata_release(data);
nfs_writedata_free(data);
}
}
@ -534,7 +534,7 @@ static void nfs_direct_commit_release(void *calldata)
dprintk("NFS: %5u commit returned %d\n", data->task.tk_pid, status);
nfs_direct_write_complete(dreq, data->inode);
nfs_commitdata_release(calldata);
nfs_commit_free(data);
}
static const struct rpc_call_ops nfs_commit_direct_ops = {
@ -570,7 +570,7 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)
data->args.fh = NFS_FH(data->inode);
data->args.offset = 0;
data->args.count = 0;
data->args.context = get_nfs_open_context(dreq->ctx);
data->args.context = dreq->ctx;
data->res.count = 0;
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
@ -734,14 +734,14 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
data->npages, 0, 0, data->pagevec, NULL);
up_read(&current->mm->mmap_sem);
if (result < 0) {
nfs_writedata_release(data);
nfs_writedata_free(data);
break;
}
if ((unsigned)result < data->npages) {
bytes = result * PAGE_SIZE;
if (bytes <= pgbase) {
nfs_direct_release_pages(data->pagevec, result);
nfs_writedata_release(data);
nfs_writedata_free(data);
break;
}
bytes -= pgbase;
@ -756,7 +756,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
data->inode = inode;
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = get_nfs_open_context(ctx);
data->args.context = ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;

6
fs/nfs/read.c
View file

@ -60,17 +60,15 @@ struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
return p;
}
static void nfs_readdata_free(struct nfs_read_data *p)
void nfs_readdata_free(struct nfs_read_data *p)
{
if (p && (p->pagevec != &p->page_array[0]))
kfree(p->pagevec);
mempool_free(p, nfs_rdata_mempool);
}
void nfs_readdata_release(void *data)
static void nfs_readdata_release(struct nfs_read_data *rdata)
{
struct nfs_read_data *rdata = data;
put_nfs_open_context(rdata->args.context);
nfs_readdata_free(rdata);
}

6
fs/nfs/write.c
View file

@ -87,17 +87,15 @@ struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
return p;
}
static void nfs_writedata_free(struct nfs_write_data *p)
void nfs_writedata_free(struct nfs_write_data *p)
{
if (p && (p->pagevec != &p->page_array[0]))
kfree(p->pagevec);
mempool_free(p, nfs_wdata_mempool);
}
void nfs_writedata_release(void *data)
static void nfs_writedata_release(struct nfs_write_data *wdata)
{
struct nfs_write_data *wdata = data;
put_nfs_open_context(wdata->args.context);
nfs_writedata_free(wdata);
}

47
fs/ocfs2/alloc.c
View file

@ -1914,7 +1914,8 @@ static void ocfs2_adjust_adjacent_records(struct ocfs2_extent_rec *left_rec,
* immediately to their right.
*/
left_clusters = le32_to_cpu(right_child_el->l_recs[0].e_cpos);
if (ocfs2_is_empty_extent(&right_child_el->l_recs[0])) {
if (!ocfs2_rec_clusters(right_child_el, &right_child_el->l_recs[0])) {
BUG_ON(right_child_el->l_tree_depth);
BUG_ON(le16_to_cpu(right_child_el->l_next_free_rec) <= 1);
left_clusters = le32_to_cpu(right_child_el->l_recs[1].e_cpos);
}
@ -2476,15 +2477,37 @@ out_ret_path:
return ret;
}
static void ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle,
struct ocfs2_path *path)
static int ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle,
int subtree_index, struct ocfs2_path *path)
{
int i, idx;
int i, idx, ret;
struct ocfs2_extent_rec *rec;
struct ocfs2_extent_list *el;
struct ocfs2_extent_block *eb;
u32 range;
/*
* In normal tree rotation process, we will never touch the
* tree branch above subtree_index and ocfs2_extend_rotate_transaction
* doesn't reserve the credits for them either.
*
* But we do have a special case here which will update the rightmost
* records for all the bh in the path.
* So we have to allocate extra credits and access them.
*/
ret = ocfs2_extend_trans(handle,
handle->h_buffer_credits + subtree_index);
if (ret) {
mlog_errno(ret);
goto out;
}
ret = ocfs2_journal_access_path(inode, handle, path);
if (ret) {
mlog_errno(ret);
goto out;
}
/* Path should always be rightmost. */
eb = (struct ocfs2_extent_block *)path_leaf_bh(path)->b_data;
BUG_ON(eb->h_next_leaf_blk != 0ULL);
@ -2505,6 +2528,8 @@ static void ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle,
ocfs2_journal_dirty(handle, path->p_node[i].bh);
}
out:
return ret;
}
static void ocfs2_unlink_path(struct inode *inode, handle_t *handle,
@ -2717,7 +2742,12 @@ static int ocfs2_rotate_subtree_left(struct inode *inode, handle_t *handle,
if (del_right_subtree) {
ocfs2_unlink_subtree(inode, handle, left_path, right_path,
subtree_index, dealloc);
ocfs2_update_edge_lengths(inode, handle, left_path);
ret = ocfs2_update_edge_lengths(inode, handle, subtree_index,
left_path);
if (ret) {
mlog_errno(ret);
goto out;
}
eb = (struct ocfs2_extent_block *)path_leaf_bh(left_path)->b_data;
ocfs2_et_set_last_eb_blk(et, le64_to_cpu(eb->h_blkno));
@ -3034,7 +3064,12 @@ static int ocfs2_remove_rightmost_path(struct inode *inode, handle_t *handle,
ocfs2_unlink_subtree(inode, handle, left_path, path,
subtree_index, dealloc);
ocfs2_update_edge_lengths(inode, handle, left_path);
ret = ocfs2_update_edge_lengths(inode, handle, subtree_index,
left_path);
if (ret) {
mlog_errno(ret);
goto out;
}
eb = (struct ocfs2_extent_block *)path_leaf_bh(left_path)->b_data;
ocfs2_et_set_last_eb_blk(et, le64_to_cpu(eb->h_blkno));

69
fs/ocfs2/aops.c
View file

@ -193,6 +193,7 @@ static int ocfs2_get_block(struct inode *inode, sector_t iblock,
(unsigned long long)OCFS2_I(inode)->ip_blkno);
mlog(ML_ERROR, "Size %llu, clusters %u\n", (unsigned long long)i_size_read(inode), OCFS2_I(inode)->ip_clusters);
dump_stack();
goto bail;
}
past_eof = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode));
@ -894,18 +895,17 @@ struct ocfs2_write_cluster_desc {
*/
unsigned c_new;
unsigned c_unwritten;
unsigned c_needs_zero;
};
static inline int ocfs2_should_zero_cluster(struct ocfs2_write_cluster_desc *d)
{
return d->c_new || d->c_unwritten;
}
struct ocfs2_write_ctxt {
/* Logical cluster position / len of write */
u32 w_cpos;
u32 w_clen;
/* First cluster allocated in a nonsparse extend */
u32 w_first_new_cpos;
struct ocfs2_write_cluster_desc w_desc[OCFS2_MAX_CLUSTERS_PER_PAGE];
/*
@ -983,6 +983,7 @@ static int ocfs2_alloc_write_ctxt(struct ocfs2_write_ctxt **wcp,
return -ENOMEM;
wc->w_cpos = pos >> osb->s_clustersize_bits;
wc->w_first_new_cpos = UINT_MAX;
cend = (pos + len - 1) >> osb->s_clustersize_bits;
wc->w_clen = cend - wc->w_cpos + 1;
get_bh(di_bh);
@ -1217,20 +1218,18 @@ out:
*/
static int ocfs2_write_cluster(struct address_space *mapping,
u32 phys, unsigned int unwritten,
unsigned int should_zero,
struct ocfs2_alloc_context *data_ac,
struct ocfs2_alloc_context *meta_ac,
struct ocfs2_write_ctxt *wc, u32 cpos,
loff_t user_pos, unsigned user_len)
{
int ret, i, new, should_zero = 0;
int ret, i, new;
u64 v_blkno, p_blkno;
struct inode *inode = mapping->host;
struct ocfs2_extent_tree et;
new = phys == 0 ? 1 : 0;
if (new || unwritten)
should_zero = 1;
if (new) {
u32 tmp_pos;
@ -1301,7 +1300,7 @@ static int ocfs2_write_cluster(struct address_space *mapping,
if (tmpret) {
mlog_errno(tmpret);
if (ret == 0)
tmpret = ret;
ret = tmpret;
}
}
@ -1341,7 +1340,9 @@ static int ocfs2_write_cluster_by_desc(struct address_space *mapping,
local_len = osb->s_clustersize - cluster_off;
ret = ocfs2_write_cluster(mapping, desc->c_phys,
desc->c_unwritten, data_ac, meta_ac,
desc->c_unwritten,
desc->c_needs_zero,
data_ac, meta_ac,
wc, desc->c_cpos, pos, local_len);
if (ret) {
mlog_errno(ret);
@ -1391,14 +1392,14 @@ static void ocfs2_set_target_boundaries(struct ocfs2_super *osb,
* newly allocated cluster.
*/
desc = &wc->w_desc[0];
if (ocfs2_should_zero_cluster(desc))
if (desc->c_needs_zero)
ocfs2_figure_cluster_boundaries(osb,
desc->c_cpos,
&wc->w_target_from,
NULL);
desc = &wc->w_desc[wc->w_clen - 1];
if (ocfs2_should_zero_cluster(desc))
if (desc->c_needs_zero)
ocfs2_figure_cluster_boundaries(osb,
desc->c_cpos,
NULL,
@ -1466,13 +1467,28 @@ static int ocfs2_populate_write_desc(struct inode *inode,
phys++;
}
/*
* If w_first_new_cpos is < UINT_MAX, we have a non-sparse
* file that got extended. w_first_new_cpos tells us
* where the newly allocated clusters are so we can
* zero them.
*/
if (desc->c_cpos >= wc->w_first_new_cpos) {
BUG_ON(phys == 0);
desc->c_needs_zero = 1;
}
desc->c_phys = phys;
if (phys == 0) {
desc->c_new = 1;
desc->c_needs_zero = 1;
*clusters_to_alloc = *clusters_to_alloc + 1;
}
if (ext_flags & OCFS2_EXT_UNWRITTEN)
if (ext_flags & OCFS2_EXT_UNWRITTEN) {
desc->c_unwritten = 1;
desc->c_needs_zero = 1;
}
num_clusters--;
}
@ -1632,10 +1648,13 @@ static int ocfs2_expand_nonsparse_inode(struct inode *inode, loff_t pos,
if (newsize <= i_size_read(inode))
return 0;
ret = ocfs2_extend_no_holes(inode, newsize, newsize - len);
ret = ocfs2_extend_no_holes(inode, newsize, pos);
if (ret)
mlog_errno(ret);
wc->w_first_new_cpos =
ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode));
return ret;
}
@ -1644,7 +1663,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
struct page **pagep, void **fsdata,
struct buffer_head *di_bh, struct page *mmap_page)
{
int ret, credits = OCFS2_INODE_UPDATE_CREDITS;
int ret, cluster_of_pages, credits = OCFS2_INODE_UPDATE_CREDITS;
unsigned int clusters_to_alloc, extents_to_split;
struct ocfs2_write_ctxt *wc;
struct inode *inode = mapping->host;
@ -1722,8 +1741,19 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
}
ocfs2_set_target_boundaries(osb, wc, pos, len,
clusters_to_alloc + extents_to_split);
/*
* We have to zero sparse allocated clusters, unwritten extent clusters,
* and non-sparse clusters we just extended. For non-sparse writes,
* we know zeros will only be needed in the first and/or last cluster.
*/
if (clusters_to_alloc || extents_to_split ||
wc->w_desc[0].c_needs_zero ||
wc->w_desc[wc->w_clen - 1].c_needs_zero)
cluster_of_pages = 1;
else
cluster_of_pages = 0;
ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages);
handle = ocfs2_start_trans(osb, credits);
if (IS_ERR(handle)) {
@ -1756,8 +1786,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
* extent.
*/
ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos,
clusters_to_alloc + extents_to_split,
mmap_page);
cluster_of_pages, mmap_page);
if (ret) {
mlog_errno(ret);
goto out_quota;

35
fs/ocfs2/dcache.c
View file

@ -310,22 +310,19 @@ out_attach:
return ret;
}
static DEFINE_SPINLOCK(dentry_list_lock);
DEFINE_SPINLOCK(dentry_list_lock);
/* We limit the number of dentry locks to drop in one go. We have
* this limit so that we don't starve other users of ocfs2_wq. */
#define DL_INODE_DROP_COUNT 64
/* Drop inode references from dentry locks */
void ocfs2_drop_dl_inodes(struct work_struct *work)
static void __ocfs2_drop_dl_inodes(struct ocfs2_super *osb, int drop_count)
{
struct ocfs2_super *osb = container_of(work, struct ocfs2_super,
dentry_lock_work);
struct ocfs2_dentry_lock *dl;
int drop_count = DL_INODE_DROP_COUNT;
spin_lock(&dentry_list_lock);
while (osb->dentry_lock_list && drop_count--) {
while (osb->dentry_lock_list && (drop_count < 0 || drop_count--)) {
dl = osb->dentry_lock_list;
osb->dentry_lock_list = dl->dl_next;
spin_unlock(&dentry_list_lock);
@ -333,11 +330,32 @@ void ocfs2_drop_dl_inodes(struct work_struct *work)
kfree(dl);
spin_lock(&dentry_list_lock);
}
if (osb->dentry_lock_list)
spin_unlock(&dentry_list_lock);
}
void ocfs2_drop_dl_inodes(struct work_struct *work)
{
struct ocfs2_super *osb = container_of(work, struct ocfs2_super,
dentry_lock_work);
__ocfs2_drop_dl_inodes(osb, DL_INODE_DROP_COUNT);
/*
* Don't queue dropping if umount is in progress. We flush the
* list in ocfs2_dismount_volume
*/
spin_lock(&dentry_list_lock);
if (osb->dentry_lock_list &&
!ocfs2_test_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED))
queue_work(ocfs2_wq, &osb->dentry_lock_work);
spin_unlock(&dentry_list_lock);
}
/* Flush the whole work queue */
void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb)
{
__ocfs2_drop_dl_inodes(osb, -1);
}
/*
* ocfs2_dentry_iput() and friends.
*
@ -368,7 +386,8 @@ static void ocfs2_drop_dentry_lock(struct ocfs2_super *osb,
/* We leave dropping of inode reference to ocfs2_wq as that can
* possibly lead to inode deletion which gets tricky */
spin_lock(&dentry_list_lock);
if (!osb->dentry_lock_list)
if (!osb->dentry_lock_list &&
!ocfs2_test_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED))
queue_work(ocfs2_wq, &osb->dentry_lock_work);
dl->dl_next = osb->dentry_lock_list;
osb->dentry_lock_list = dl;

3
fs/ocfs2/dcache.h
View file

@ -49,10 +49,13 @@ struct ocfs2_dentry_lock {
int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode,
u64 parent_blkno);
extern spinlock_t dentry_list_lock;
void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
struct ocfs2_dentry_lock *dl);
void ocfs2_drop_dl_inodes(struct work_struct *work);
void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb);
struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno,
int skip_unhashed);

1
fs/ocfs2/dlm/dlmast.c
View file

@ -103,7 +103,6 @@ static void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock)
lock->ast_pending, lock->ml.type);
BUG();
}
BUG_ON(!list_empty(&lock->ast_list));
if (lock->ast_pending)
mlog(0, "lock has an ast getting flushed right now\n");

2
fs/ocfs2/dlm/dlmrecovery.c
View file

@ -1118,7 +1118,7 @@ static int dlm_send_mig_lockres_msg(struct dlm_ctxt *dlm,
mlog(0, "%s:%.*s: sending mig lockres (%s) to %u\n",
dlm->name, res->lockname.len, res->lockname.name,
orig_flags & DLM_MRES_MIGRATION ? "migrate" : "recovery",
orig_flags & DLM_MRES_MIGRATION ? "migration" : "recovery",
send_to);
/* send it */

5
fs/ocfs2/file.c
View file

@ -1851,6 +1851,7 @@ relock:
if (ret)
goto out_dio;
count = ocount;
ret = generic_write_checks(file, ppos, &count,
S_ISBLK(inode->i_mode));
if (ret)
@ -1918,8 +1919,10 @@ out_sems:
mutex_unlock(&inode->i_mutex);
if (written)
ret = written;
mlog_exit(ret);
return written ? written : ret;
return ret;
}
static int ocfs2_splice_to_file(struct pipe_inode_info *pipe,

8
fs/ocfs2/journal.c
View file

@ -1954,10 +1954,16 @@ void ocfs2_orphan_scan_init(struct ocfs2_super *osb)
os->os_osb = osb;
os->os_count = 0;
os->os_seqno = 0;
os->os_scantime = CURRENT_TIME;
mutex_init(&os->os_lock);
INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work);
}
void ocfs2_orphan_scan_start(struct ocfs2_super *osb)
{
struct ocfs2_orphan_scan *os;
os = &osb->osb_orphan_scan;
os->os_scantime = CURRENT_TIME;
if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb))
atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE);
else {

21
fs/ocfs2/journal.h
View file

@ -145,6 +145,7 @@ static inline void ocfs2_inode_set_new(struct ocfs2_super *osb,
/* Exported only for the journal struct init code in super.c. Do not call. */
void ocfs2_orphan_scan_init(struct ocfs2_super *osb);
void ocfs2_orphan_scan_start(struct ocfs2_super *osb);
void ocfs2_orphan_scan_stop(struct ocfs2_super *osb);
void ocfs2_orphan_scan_exit(struct ocfs2_super *osb);
@ -329,20 +330,27 @@ int ocfs2_journal_dirty(handle_t *handle,
/* extended attribute block update */
#define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1
/* global quotafile inode update, data block */
#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1)
/* Update of a single quota block */
#define OCFS2_QUOTA_BLOCK_UPDATE_CREDITS 1
/* global quotafile inode update, data block */
#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \
OCFS2_QUOTA_BLOCK_UPDATE_CREDITS)
#define OCFS2_LOCAL_QINFO_WRITE_CREDITS OCFS2_QUOTA_BLOCK_UPDATE_CREDITS
/*
* The two writes below can accidentally see global info dirty due
* to set_info() quotactl so make them prepared for the writes.
*/
/* quota data block, global info */
/* Write to local quota file */
#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + 1)
#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \
OCFS2_QUOTA_BLOCK_UPDATE_CREDITS)
/* global quota data block, local quota data block, global quota inode,
* global quota info */
#define OCFS2_QSYNC_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 3)
#define OCFS2_QSYNC_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \
2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS)
static inline int ocfs2_quota_trans_credits(struct super_block *sb)
{
@ -355,11 +363,6 @@ static inline int ocfs2_quota_trans_credits(struct super_block *sb)
return credits;
}
/* Number of credits needed for removing quota structure from file */
int ocfs2_calc_qdel_credits(struct super_block *sb, int type);
/* Number of credits needed for initialization of new quota structure */
int ocfs2_calc_qinit_credits(struct super_block *sb, int type);
/* group extend. inode update and last group update. */
#define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1)

22
fs/ocfs2/ocfs2.h
View file

@ -224,10 +224,12 @@ enum ocfs2_mount_options
OCFS2_MOUNT_GRPQUOTA = 1 << 10, /* We support group quotas */
};
#define OCFS2_OSB_SOFT_RO 0x0001
#define OCFS2_OSB_HARD_RO 0x0002
#define OCFS2_OSB_ERROR_FS 0x0004
#define OCFS2_DEFAULT_ATIME_QUANTUM 60
#define OCFS2_OSB_SOFT_RO 0x0001
#define OCFS2_OSB_HARD_RO 0x0002
#define OCFS2_OSB_ERROR_FS 0x0004
#define OCFS2_OSB_DROP_DENTRY_LOCK_IMMED 0x0008
#define OCFS2_DEFAULT_ATIME_QUANTUM 60
struct ocfs2_journal;
struct ocfs2_slot_info;
@ -490,6 +492,18 @@ static inline void ocfs2_set_osb_flag(struct ocfs2_super *osb,
spin_unlock(&osb->osb_lock);
}
static inline unsigned long ocfs2_test_osb_flag(struct ocfs2_super *osb,
unsigned long flag)
{
unsigned long ret;
spin_lock(&osb->osb_lock);
ret = osb->osb_flags & flag;
spin_unlock(&osb->osb_lock);
return ret;
}
static inline void ocfs2_set_ro_flag(struct ocfs2_super *osb,
int hard)
{

1
fs/ocfs2/quota.h
View file

@ -50,7 +50,6 @@ struct ocfs2_mem_dqinfo {
unsigned int dqi_chunks; /* Number of chunks in local quota file */
unsigned int dqi_blocks; /* Number of blocks allocated for local quota file */
unsigned int dqi_syncms; /* How often should we sync with other nodes */
unsigned int dqi_syncjiff; /* Precomputed dqi_syncms in jiffies */
struct list_head dqi_chunk; /* List of chunks */
struct inode *dqi_gqinode; /* Global quota file inode */
struct ocfs2_lock_res dqi_gqlock; /* Lock protecting quota information structure */

134
fs/ocfs2/quota_global.c
View file

@ -69,6 +69,7 @@ static void ocfs2_global_mem2diskdqb(void *dp, struct dquot *dquot)
d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
d->dqb_btime = cpu_to_le64(m->dqb_btime);
d->dqb_itime = cpu_to_le64(m->dqb_itime);
d->dqb_pad1 = d->dqb_pad2 = 0;
}
static int ocfs2_global_is_id(void *dp, struct dquot *dquot)
@ -211,14 +212,13 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
mutex_lock_nested(&gqinode->i_mutex, I_MUTEX_QUOTA);
if (gqinode->i_size < off + len) {
down_write(&OCFS2_I(gqinode)->ip_alloc_sem);
err = ocfs2_extend_no_holes(gqinode, off + len, off);
up_write(&OCFS2_I(gqinode)->ip_alloc_sem);
if (err < 0)
goto out;
loff_t rounded_end =
ocfs2_align_bytes_to_blocks(sb, off + len);
/* Space is already allocated in ocfs2_global_read_dquot() */
err = ocfs2_simple_size_update(gqinode,
oinfo->dqi_gqi_bh,
off + len);
rounded_end);
if (err < 0)
goto out;
new = 1;
@ -234,7 +234,7 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
}
if (err) {
mlog_errno(err);
return err;
goto out;
}
lock_buffer(bh);
if (new)
@ -342,7 +342,6 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
oinfo->dqi_syncms = le32_to_cpu(dinfo.dqi_syncms);
oinfo->dqi_syncjiff = msecs_to_jiffies(oinfo->dqi_syncms);
oinfo->dqi_gi.dqi_blocks = le32_to_cpu(dinfo.dqi_blocks);
oinfo->dqi_gi.dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk);
oinfo->dqi_gi.dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry);
@ -352,7 +351,7 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
oinfo->dqi_gi.dqi_qtree_depth = qtree_depth(&oinfo->dqi_gi);
INIT_DELAYED_WORK(&oinfo->dqi_sync_work, qsync_work_fn);
queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
oinfo->dqi_syncjiff);
msecs_to_jiffies(oinfo->dqi_syncms));
out_err:
mlog_exit(status);
@ -402,13 +401,36 @@ int ocfs2_global_write_info(struct super_block *sb, int type)
return err;
}
static int ocfs2_global_qinit_alloc(struct super_block *sb, int type)
{
struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
/*
* We may need to allocate tree blocks and a leaf block but not the
* root block
*/
return oinfo->dqi_gi.dqi_qtree_depth;
}
static int ocfs2_calc_global_qinit_credits(struct super_block *sb, int type)
{
/* We modify all the allocated blocks, tree root, and info block */
return (ocfs2_global_qinit_alloc(sb, type) + 2) *
OCFS2_QUOTA_BLOCK_UPDATE_CREDITS;
}
/* Read in information from global quota file and acquire a reference to it.
* dquot_acquire() has already started the transaction and locked quota file */
int ocfs2_global_read_dquot(struct dquot *dquot)
{
int err, err2, ex = 0;
struct ocfs2_mem_dqinfo *info =
sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
struct super_block *sb = dquot->dq_sb;
int type = dquot->dq_type;
struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;
struct ocfs2_super *osb = OCFS2_SB(sb);
struct inode *gqinode = info->dqi_gqinode;
int need_alloc = ocfs2_global_qinit_alloc(sb, type);
handle_t *handle = NULL;
err = ocfs2_qinfo_lock(info, 0);
if (err < 0)
@ -419,14 +441,33 @@ int ocfs2_global_read_dquot(struct dquot *dquot)
OCFS2_DQUOT(dquot)->dq_use_count++;
OCFS2_DQUOT(dquot)->dq_origspace = dquot->dq_dqb.dqb_curspace;
OCFS2_DQUOT(dquot)->dq_originodes = dquot->dq_dqb.dqb_curinodes;
ocfs2_qinfo_unlock(info, 0);
if (!dquot->dq_off) { /* No real quota entry? */
/* Upgrade to exclusive lock for allocation */
ocfs2_qinfo_unlock(info, 0);
err = ocfs2_qinfo_lock(info, 1);
if (err < 0)
goto out_qlock;
ex = 1;
/*
* Add blocks to quota file before we start a transaction since
* locking allocators ranks above a transaction start
*/
WARN_ON(journal_current_handle());
down_write(&OCFS2_I(gqinode)->ip_alloc_sem);
err = ocfs2_extend_no_holes(gqinode,
gqinode->i_size + (need_alloc << sb->s_blocksize_bits),
gqinode->i_size);
up_write(&OCFS2_I(gqinode)->ip_alloc_sem);
if (err < 0)
goto out;
}
handle = ocfs2_start_trans(osb,
ocfs2_calc_global_qinit_credits(sb, type));
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
goto out;
}
err = ocfs2_qinfo_lock(info, ex);
if (err < 0)
goto out_trans;
err = qtree_write_dquot(&info->dqi_gi, dquot);
if (ex && info_dirty(sb_dqinfo(dquot->dq_sb, dquot->dq_type))) {
err2 = __ocfs2_global_write_info(dquot->dq_sb, dquot->dq_type);
@ -438,6 +479,9 @@ out_qlock:
ocfs2_qinfo_unlock(info, 1);
else
ocfs2_qinfo_unlock(info, 0);
out_trans:
if (handle)
ocfs2_commit_trans(osb, handle);
out:
if (err < 0)
mlog_errno(err);
@ -607,7 +651,7 @@ static void qsync_work_fn(struct work_struct *work)
dquot_scan_active(sb, ocfs2_sync_dquot_helper, oinfo->dqi_type);
queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
oinfo->dqi_syncjiff);
msecs_to_jiffies(oinfo->dqi_syncms));
}
/*
@ -635,20 +679,18 @@ out:
return status;
}
int ocfs2_calc_qdel_credits(struct super_block *sb, int type)
static int ocfs2_calc_qdel_credits(struct super_block *sb, int type)
{
struct ocfs2_mem_dqinfo *oinfo;
int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
OCFS2_FEATURE_RO_COMPAT_GRPQUOTA };
if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type]))
return 0;
oinfo = sb_dqinfo(sb, type)->dqi_priv;
/* We modify tree, leaf block, global info, local chunk header,
* global and local inode */
return oinfo->dqi_gi.dqi_qtree_depth + 2 + 1 +
2 * OCFS2_INODE_UPDATE_CREDITS;
struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
/*
* We modify tree, leaf block, global info, local chunk header,
* global and local inode; OCFS2_QINFO_WRITE_CREDITS already
* accounts for inode update
*/
return (oinfo->dqi_gi.dqi_qtree_depth + 2) *
OCFS2_QUOTA_BLOCK_UPDATE_CREDITS +
OCFS2_QINFO_WRITE_CREDITS +
OCFS2_INODE_UPDATE_CREDITS;
}
static int ocfs2_release_dquot(struct dquot *dquot)
@ -680,33 +722,10 @@ out:
return status;
}
int ocfs2_calc_qinit_credits(struct super_block *sb, int type)
{
struct ocfs2_mem_dqinfo *oinfo;
int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
OCFS2_FEATURE_RO_COMPAT_GRPQUOTA };
struct ocfs2_dinode *lfe, *gfe;
if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type]))
return 0;
oinfo = sb_dqinfo(sb, type)->dqi_priv;
gfe = (struct ocfs2_dinode *)oinfo->dqi_gqi_bh->b_data;
lfe = (struct ocfs2_dinode *)oinfo->dqi_lqi_bh->b_data;
/* We can extend local file + global file. In local file we
* can modify info, chunk header block and dquot block. In
* global file we can modify info, tree and leaf block */
return ocfs2_calc_extend_credits(sb, &lfe->id2.i_list, 0) +
ocfs2_calc_extend_credits(sb, &gfe->id2.i_list, 0) +
3 + oinfo->dqi_gi.dqi_qtree_depth + 2;
}
static int ocfs2_acquire_dquot(struct dquot *dquot)
{
handle_t *handle;
struct ocfs2_mem_dqinfo *oinfo =
sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
int status = 0;
mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
@ -715,16 +734,7 @@ static int ocfs2_acquire_dquot(struct dquot *dquot)
status = ocfs2_lock_global_qf(oinfo, 1);
if (status < 0)
goto out;
handle = ocfs2_start_trans(osb,
ocfs2_calc_qinit_credits(dquot->dq_sb, dquot->dq_type));
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto out_ilock;
}
status = dquot_acquire(dquot);
ocfs2_commit_trans(osb, handle);
out_ilock:
ocfs2_unlock_global_qf(oinfo, 1);
out:
mlog_exit(status);

126
fs/ocfs2/quota_local.c
View file

@ -20,6 +20,7 @@
#include "sysfile.h"
#include "dlmglue.h"
#include "quota.h"
#include "uptodate.h"
/* Number of local quota structures per block */
static inline unsigned int ol_quota_entries_per_block(struct super_block *sb)
@ -100,7 +101,8 @@ static int ocfs2_modify_bh(struct inode *inode, struct buffer_head *bh,
handle_t *handle;
int status;
handle = ocfs2_start_trans(OCFS2_SB(sb), 1);
handle = ocfs2_start_trans(OCFS2_SB(sb),
OCFS2_QUOTA_BLOCK_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
@ -610,7 +612,8 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb,
goto out_bh;
/* Mark quota file as clean if we are recovering quota file of
* some other node. */
handle = ocfs2_start_trans(osb, 1);
handle = ocfs2_start_trans(osb,
OCFS2_LOCAL_QINFO_WRITE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
@ -940,7 +943,7 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
struct ocfs2_local_disk_chunk *dchunk;
int status;
handle_t *handle;
struct buffer_head *bh = NULL;
struct buffer_head *bh = NULL, *dbh = NULL;
u64 p_blkno;
/* We are protected by dqio_sem so no locking needed */
@ -964,32 +967,35 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
mlog_errno(status);
goto out;
}
down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
&p_blkno, NULL, NULL);
up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out;
}
bh = sb_getblk(sb, p_blkno);
if (!bh) {
status = -ENOMEM;
mlog_errno(status);
goto out;
}
dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data;
handle = ocfs2_start_trans(OCFS2_SB(sb), 2);
/* Local quota info and two new blocks we initialize */
handle = ocfs2_start_trans(OCFS2_SB(sb),
OCFS2_LOCAL_QINFO_WRITE_CREDITS +
2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto out;
}
/* Initialize chunk header */
down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
&p_blkno, NULL, NULL);
up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out_trans;
}
bh = sb_getblk(sb, p_blkno);
if (!bh) {
status = -ENOMEM;
mlog_errno(status);
goto out_trans;
}
dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data;
ocfs2_set_new_buffer_uptodate(lqinode, bh);
status = ocfs2_journal_access_dq(handle, lqinode, bh,
OCFS2_JOURNAL_ACCESS_WRITE);
OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto out_trans;
@ -999,7 +1005,6 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
memset(dchunk->dqc_bitmap, 0,
sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) -
OCFS2_QBLK_RESERVED_SPACE);
set_buffer_uptodate(bh);
unlock_buffer(bh);
status = ocfs2_journal_dirty(handle, bh);
if (status < 0) {
@ -1007,6 +1012,38 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
goto out_trans;
}
/* Initialize new block with structures */
down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks + 1,
&p_blkno, NULL, NULL);
up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out_trans;
}
dbh = sb_getblk(sb, p_blkno);
if (!dbh) {
status = -ENOMEM;
mlog_errno(status);
goto out_trans;
}
ocfs2_set_new_buffer_uptodate(lqinode, dbh);
status = ocfs2_journal_access_dq(handle, lqinode, dbh,
OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto out_trans;
}
lock_buffer(dbh);
memset(dbh->b_data, 0, sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE);
unlock_buffer(dbh);
status = ocfs2_journal_dirty(handle, dbh);
if (status < 0) {
mlog_errno(status);
goto out_trans;
}
/* Update local quotafile info */
oinfo->dqi_blocks += 2;
oinfo->dqi_chunks++;
status = ocfs2_local_write_info(sb, type);
@ -1031,6 +1068,7 @@ out_trans:
ocfs2_commit_trans(OCFS2_SB(sb), handle);
out:
brelse(bh);
brelse(dbh);
kmem_cache_free(ocfs2_qf_chunk_cachep, chunk);
return ERR_PTR(status);
}
@ -1048,6 +1086,8 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
struct ocfs2_local_disk_chunk *dchunk;
int epb = ol_quota_entries_per_block(sb);
unsigned int chunk_blocks;
struct buffer_head *bh;
u64 p_blkno;
int status;
handle_t *handle;
@ -1075,12 +1115,49 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
mlog_errno(status);
goto out;
}
handle = ocfs2_start_trans(OCFS2_SB(sb), 2);
/* Get buffer from the just added block */
down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
&p_blkno, NULL, NULL);
up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out;
}
bh = sb_getblk(sb, p_blkno);
if (!bh) {
status = -ENOMEM;
mlog_errno(status);
goto out;
}
ocfs2_set_new_buffer_uptodate(lqinode, bh);
/* Local quota info, chunk header and the new block we initialize */
handle = ocfs2_start_trans(OCFS2_SB(sb),
OCFS2_LOCAL_QINFO_WRITE_CREDITS +
2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto out;
}
/* Zero created block */
status = ocfs2_journal_access_dq(handle, lqinode, bh,
OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto out_trans;
}
lock_buffer(bh);
memset(bh->b_data, 0, sb->s_blocksize);
unlock_buffer(bh);
status = ocfs2_journal_dirty(handle, bh);
if (status < 0) {
mlog_errno(status);
goto out_trans;
}
/* Update chunk header */
status = ocfs2_journal_access_dq(handle, lqinode, chunk->qc_headerbh,
OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
@ -1097,6 +1174,7 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
mlog_errno(status);
goto out_trans;
}
/* Update file header */
oinfo->dqi_blocks++;
status = ocfs2_local_write_info(sb, type);
if (status < 0) {

3
fs/ocfs2/stack_o2cb.c
View file

@ -17,6 +17,7 @@
* General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/crc32.h>
#include <linux/module.h>
@ -153,7 +154,7 @@ static int status_map[] = {
static int dlm_status_to_errno(enum dlm_status status)
{
BUG_ON(status > (sizeof(status_map) / sizeof(status_map[0])));
BUG_ON(status < 0 || status >= ARRAY_SIZE(status_map));
return status_map[status];
}

30
fs/ocfs2/super.c
View file

@ -777,6 +777,7 @@ static int ocfs2_sb_probe(struct super_block *sb,
}
di = (struct ocfs2_dinode *) (*bh)->b_data;
memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats));
spin_lock_init(&stats->b_lock);
status = ocfs2_verify_volume(di, *bh, blksize, stats);
if (status >= 0)
goto bail;
@ -1182,7 +1183,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
wake_up(&osb->osb_mount_event);
/* Start this when the mount is almost sure of being successful */
ocfs2_orphan_scan_init(osb);
ocfs2_orphan_scan_start(osb);
mlog_exit(status);
return status;
@ -1213,14 +1214,27 @@ static int ocfs2_get_sb(struct file_system_type *fs_type,
mnt);
}
static void ocfs2_kill_sb(struct super_block *sb)
{
struct ocfs2_super *osb = OCFS2_SB(sb);
/* Prevent further queueing of inode drop events */
spin_lock(&dentry_list_lock);
ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED);
spin_unlock(&dentry_list_lock);
/* Wait for work to finish and/or remove it */
cancel_work_sync(&osb->dentry_lock_work);
kill_block_super(sb);
}
static struct file_system_type ocfs2_fs_type = {
.owner = THIS_MODULE,
.name = "ocfs2",
.get_sb = ocfs2_get_sb, /* is this called when we mount
* the fs? */
.kill_sb = kill_block_super, /* set to the generic one
* right now, but do we
* need to change that? */
.kill_sb = ocfs2_kill_sb,
.fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE,
.next = NULL
};
@ -1819,6 +1833,12 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
debugfs_remove(osb->osb_ctxt);
/*
* Flush inode dropping work queue so that deletes are
* performed while the filesystem is still working
*/
ocfs2_drop_all_dl_inodes(osb);
/* Orphan scan should be stopped as early as possible */
ocfs2_orphan_scan_stop(osb);
@ -1981,6 +2001,8 @@ static int ocfs2_initialize_super(struct super_block *sb,
snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u",
MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev));
ocfs2_orphan_scan_init(osb);
status = ocfs2_recovery_init(osb);
if (status) {
mlog(ML_ERROR, "Unable to initialize recovery state\n");

3
fs/ocfs2/xattr.c
View file

@ -1052,7 +1052,8 @@ static int ocfs2_xattr_block_get(struct inode *inode,
struct ocfs2_xattr_block *xb;
struct ocfs2_xattr_value_root *xv;
size_t size;
int ret = -ENODATA, name_offset, name_len, block_off, i;
int ret = -ENODATA, name_offset, name_len, i;
int uninitialized_var(block_off);
xs->bucket = ocfs2_xattr_bucket_new(inode);
if (!xs->bucket) {

27
fs/proc/base.c
View file

@ -234,23 +234,20 @@ static int check_mem_permission(struct task_struct *task)
struct mm_struct *mm_for_maps(struct task_struct *task)
{
struct mm_struct *mm = get_task_mm(task);
if (!mm)
struct mm_struct *mm;
if (mutex_lock_killable(&task->cred_guard_mutex))
return NULL;
down_read(&mm->mmap_sem);
task_lock(task);
if (task->mm != mm)
goto out;
if (task->mm != current->mm &&
__ptrace_may_access(task, PTRACE_MODE_READ) < 0)
goto out;
task_unlock(task);
mm = get_task_mm(task);
if (mm && mm != current->mm &&
!ptrace_may_access(task, PTRACE_MODE_READ)) {
mmput(mm);
mm = NULL;
}
mutex_unlock(&task->cred_guard_mutex);
return mm;
out:
task_unlock(task);
up_read(&mm->mmap_sem);
mmput(mm);
return NULL;
}
static int proc_pid_cmdline(struct task_struct *task, char * buffer)

1
fs/proc/task_mmu.c
View file

@ -119,6 +119,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
mm = mm_for_maps(priv->task);
if (!mm)
return NULL;
down_read(&mm->mmap_sem);
tail_vma = get_gate_vma(priv->task);
priv->tail_vma = tail_vma;

1
fs/proc/task_nommu.c
View file

@ -189,6 +189,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
priv->task = NULL;
return NULL;
}
down_read(&mm->mmap_sem);
/* start from the Nth VMA */
for (p = rb_first(&mm->mm_rb); p; p = rb_next(p))

2
fs/xfs/linux-2.6/xfs_buf.c
View file

@ -770,7 +770,7 @@ xfs_buf_associate_memory(
bp->b_pages = NULL;
bp->b_addr = mem;
rval = _xfs_buf_get_pages(bp, page_count, 0);
rval = _xfs_buf_get_pages(bp, page_count, XBF_DONT_BLOCK);
if (rval)
return rval;

Some files were not shown because too many files have changed in this diff Show more