Re: Linux 2.6.32.33

From: Greg KH
Date: Mon Mar 14 2011 - 17:41:38 EST

diff --git a/Makefile b/Makefile
index c3f6287..8b04094 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 32
-EXTRAVERSION = .32
+EXTRAVERSION = .33
NAME = Man-Eating Seals of Antiquity

# *DOCUMENTATION*
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index 6251a4b..c9dd94f 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -268,6 +268,7 @@ long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);
*/
#define PLPAR_HCALL9_BUFSIZE 9
long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
+long plpar_hcall9_raw(unsigned long opcode, unsigned long *retbuf, ...);

/* For hcall instrumentation. One structure per-hcall, per-CPU */
struct hcall_stats {
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 0a8439a..b779818 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -347,10 +347,12 @@ int crash_shutdown_unregister(crash_shutdown_t handler)
EXPORT_SYMBOL(crash_shutdown_unregister);

static unsigned long crash_shutdown_buf[JMP_BUF_LEN];
+static int crash_shutdown_cpu = -1;

static int handle_fault(struct pt_regs *regs)
{
- longjmp(crash_shutdown_buf, 1);
+ if (crash_shutdown_cpu == smp_processor_id())
+ longjmp(crash_shutdown_buf, 1);
return 0;
}

@@ -375,11 +377,14 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
for_each_irq(i) {
struct irq_desc *desc = irq_desc + i;

+ if (!desc || !desc->chip || !desc->chip->eoi)
+ continue;
+
if (desc->status & IRQ_INPROGRESS)
desc->chip->eoi(i);

if (!(desc->status & IRQ_DISABLED))
- desc->chip->disable(i);
+ desc->chip->shutdown(i);
}

/*
@@ -388,6 +393,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
*/
old_handler = __debugger_fault_handler;
__debugger_fault_handler = handle_fault;
+ crash_shutdown_cpu = smp_processor_id();
for (i = 0; crash_shutdown_handles[i]; i++) {
if (setjmp(crash_shutdown_buf) == 0) {
/*
@@ -401,6 +407,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
asm volatile("sync; isync");
}
}
+ crash_shutdown_cpu = -1;
__debugger_fault_handler = old_handler;

/*
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 040bd1d..1a8de63 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -15,6 +15,7 @@
#include <linux/thread_info.h>
#include <linux/init_task.h>
#include <linux/errno.h>
+#include <linux/cpu.h>

#include <asm/page.h>
#include <asm/current.h>
@@ -169,10 +170,34 @@ static void kexec_smp_down(void *arg)
/* NOTREACHED */
}

+/*
+ * We need to make sure each present CPU is online. The next kernel will scan
+ * the device tree and assume primary threads are online and query secondary
+ * threads via RTAS to online them if required. If we don't online primary
+ * threads, they will be stuck. However, we also online secondary threads as we
+ * may be using 'cede offline'. In this case RTAS doesn't see the secondary
+ * threads as offline -- and again, these CPUs will be stuck.
+ *
+ * So, we online all CPUs that should be running, including secondary threads.
+ */
+static void wake_offline_cpus(void)
+{
+ int cpu = 0;
+
+ for_each_present_cpu(cpu) {
+ if (!cpu_online(cpu)) {
+ printk(KERN_INFO "kexec: Waking offline cpu %d.\n",
+ cpu);
+ cpu_up(cpu);
+ }
+ }
+}
+
static void kexec_prepare_cpus(void)
{
int my_cpu, i, notified=-1;

+ wake_offline_cpus();
smp_call_function(kexec_smp_down, NULL, /* wait */0);
my_cpu = get_cpu();

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 04f638d..00d3b65 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -432,9 +432,18 @@ void __init setup_system(void)
DBG(" <- setup_system()\n");
}

+static u64 slb0_limit(void)
+{
+ if (cpu_has_feature(CPU_FTR_1T_SEGMENT)) {
+ return 1UL << SID_SHIFT_1T;
+ }
+ return 1UL << SID_SHIFT;
+}
+
#ifdef CONFIG_IRQSTACKS
static void __init irqstack_early_init(void)
{
+ u64 limit = slb0_limit();
unsigned int i;

/*
@@ -444,10 +453,10 @@ static void __init irqstack_early_init(void)
for_each_possible_cpu(i) {
softirq_ctx[i] = (struct thread_info *)
__va(lmb_alloc_base(THREAD_SIZE,
- THREAD_SIZE, 0x10000000));
+ THREAD_SIZE, limit));
hardirq_ctx[i] = (struct thread_info *)
__va(lmb_alloc_base(THREAD_SIZE,
- THREAD_SIZE, 0x10000000));
+ THREAD_SIZE, limit));
}
}
#else
@@ -478,7 +487,7 @@ static void __init exc_lvl_early_init(void)
*/
static void __init emergency_stack_init(void)
{
- unsigned long limit;
+ u64 limit;
unsigned int i;

/*
@@ -490,7 +499,7 @@ static void __init emergency_stack_init(void)
* bringup, we need to get at them in real mode. This means they
* must also be within the RMO region.
*/
- limit = min(0x10000000ULL, lmb.rmo_size);
+ limit = min(slb0_limit(), lmb.rmo_size);

for_each_possible_cpu(i) {
unsigned long sp;
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index c1427b3..34c76a52 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -202,3 +202,41 @@ _GLOBAL(plpar_hcall9)
mtcrf 0xff,r0

blr /* return r3 = status */
+
+/* See plpar_hcall_raw to see why this is needed */
+_GLOBAL(plpar_hcall9_raw)
+ HMT_MEDIUM
+
+ mfcr r0
+ stw r0,8(r1)
+
+ std r4,STK_PARM(r4)(r1) /* Save ret buffer */
+
+ mr r4,r5
+ mr r5,r6
+ mr r6,r7
+ mr r7,r8
+ mr r8,r9
+ mr r9,r10
+ ld r10,STK_PARM(r11)(r1) /* put arg7 in R10 */
+ ld r11,STK_PARM(r12)(r1) /* put arg8 in R11 */
+ ld r12,STK_PARM(r13)(r1) /* put arg9 in R12 */
+
+ HVSC /* invoke the hypervisor */
+
+ mr r0,r12
+ ld r12,STK_PARM(r4)(r1)
+ std r4, 0(r12)
+ std r5, 8(r12)
+ std r6, 16(r12)
+ std r7, 24(r12)
+ std r8, 32(r12)
+ std r9, 40(r12)
+ std r10,48(r12)
+ std r11,56(r12)
+ std r0, 64(r12)
+
+ lwz r0,8(r1)
+ mtcrf 0xff,r0
+
+ blr /* return r3 = status */
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 903eb9e..5f2c511 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -366,21 +366,28 @@ static void pSeries_lpar_hptab_clear(void)
{
unsigned long size_bytes = 1UL << ppc64_pft_size;
unsigned long hpte_count = size_bytes >> 4;
- unsigned long dummy1, dummy2, dword0;
+ struct {
+ unsigned long pteh;
+ unsigned long ptel;
+ } ptes[4];
long lpar_rc;
- int i;
+ int i, j;

- /* TODO: Use bulk call */
- for (i = 0; i < hpte_count; i++) {
- /* dont remove HPTEs with VRMA mappings */
- lpar_rc = plpar_pte_remove_raw(H_ANDCOND, i, HPTE_V_1TB_SEG,
- &dummy1, &dummy2);
- if (lpar_rc == H_NOT_FOUND) {
- lpar_rc = plpar_pte_read_raw(0, i, &dword0, &dummy1);
- if (!lpar_rc && ((dword0 & HPTE_V_VRMA_MASK)
- != HPTE_V_VRMA_MASK))
- /* Can be hpte for 1TB Seg. So remove it */
- plpar_pte_remove_raw(0, i, 0, &dummy1, &dummy2);
+ /* Read in batches of 4,
+ * invalidate only valid entries not in the VRMA
+ * hpte_count will be a multiple of 4
+ */
+ for (i = 0; i < hpte_count; i += 4) {
+ lpar_rc = plpar_pte_read_4_raw(0, i, (void *)ptes);
+ if (lpar_rc != H_SUCCESS)
+ continue;
+ for (j = 0; j < 4; j++){
+ if ((ptes[j].pteh & HPTE_V_VRMA_MASK) ==
+ HPTE_V_VRMA_MASK)
+ continue;
+ if (ptes[j].pteh & HPTE_V_VALID)
+ plpar_pte_remove_raw(0, i + j, 0,
+ &(ptes[j].pteh), &(ptes[j].ptel));
}
}
}
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 45f634c..98d4256 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -169,6 +169,24 @@ static inline long plpar_pte_read_raw(unsigned long flags, unsigned long ptex,
return rc;
}

+/*
+ * plpar_pte_read_4_raw can be called in real mode.
+ * ptes must be 8*sizeof(unsigned long)
+ */
+static inline long plpar_pte_read_4_raw(unsigned long flags, unsigned long ptex,
+ unsigned long *ptes)
+
+{
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
+
+ rc = plpar_hcall9_raw(H_READ, retbuf, flags | H_READ_4, ptex);
+
+ memcpy(ptes, retbuf, 8*sizeof(unsigned long));
+
+ return rc;
+}
+
static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
unsigned long avpn)
{
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 20db37e..a550d37 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2134,6 +2134,10 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
/* Decide whether to use packet split mode or not */
adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED;

+ /* Disable packet split due to 82599 erratum #45 */
+ if (hw->mac.type == ixgbe_mac_82599EB)
+ adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED;
+
/* Set the RX buffer length according to the mode */
if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) {
rx_buf_len = IXGBE_RX_HDR_SIZE;
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 7022b1b..3ebe50c 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3741,7 +3741,8 @@ static void rtl_hw_start_8168(struct net_device *dev)
RTL_W16(IntrMitigate, 0x5151);

/* Work around for RxFIFO overflow. */
- if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
+ if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_22) {
tp->intr_event |= RxFIFOOver | PCSTimeout;
tp->intr_event &= ~RxOverflow;
}
@@ -4633,7 +4634,8 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)

/* Work around for rx fifo overflow */
if (unlikely(status & RxFIFOOver) &&
- (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
+ (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_22)) {
netif_stop_queue(dev);
rtl8169_tx_timeout(dev);
break;
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index cee4d4e..1160fca 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -462,7 +462,8 @@ kbd_ioctl(struct kbd_data *kbd, struct file *file,
unsigned int cmd, unsigned long arg)
{
void __user *argp;
- int ct, perm;
+ unsigned int ct;
+ int perm;

argp = (void __user *)arg;

diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 59a6106..1d6385a 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -856,8 +856,11 @@ static int jr3_pci_attach(struct comedi_device *dev,
}

devpriv->pci_enabled = 1;
- devpriv->iobase =
- ioremap(pci_resource_start(card, 0), sizeof(struct jr3_t));
+ devpriv->iobase = ioremap(pci_resource_start(card, 0),
+ offsetof(struct jr3_t, channel[devpriv->n_channels]));
+ if (!devpriv->iobase)
+ return -ENOMEM;
+
result = alloc_subdevices(dev, devpriv->n_channels);
if (result < 0)
goto out;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index e5bab6e..4fde2c5 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1114,7 +1114,7 @@ nfsd4_decode_create_session(struct nfsd4_compoundargs *argp,

u32 dummy;
char *machine_name;
- int i;
+ int i, j;
int nr_secflavs;

READ_BUF(16);
@@ -1187,7 +1187,7 @@ nfsd4_decode_create_session(struct nfsd4_compoundargs *argp,
READ_BUF(4);
READ32(dummy);
READ_BUF(dummy * 4);
- for (i = 0; i < dummy; ++i)
+ for (j = 0; j < dummy; ++j)
READ32(dummy);
break;
case RPC_AUTH_GSS:
diff --git a/include/keys/rxrpc-type.h b/include/keys/rxrpc-type.h
index 5cb86c3..fc48754 100644
--- a/include/keys/rxrpc-type.h
+++ b/include/keys/rxrpc-type.h
@@ -99,7 +99,6 @@ struct rxrpc_key_token {
* structure of raw payloads passed to add_key() or instantiate key
*/
struct rxrpc_key_data_v1 {
- u32 kif_version; /* 1 */
u16 security_index;
u16 ticket_length;
u32 expiry; /* time_t */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ec12f8c..c27a182 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2015,6 +2015,10 @@ static inline u32 dev_ethtool_get_flags(struct net_device *dev)
return 0;
return dev->ethtool_ops->get_flags(dev);
}
+
+#define MODULE_ALIAS_NETDEV(device) \
+ MODULE_ALIAS("netdev-" device)
+
#endif /* __KERNEL__ */

#endif /* _LINUX_NETDEVICE_H */
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index b120fd0..d091ed3 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1514,8 +1514,10 @@ static int cpuset_write_resmask(struct cgroup *cgrp, struct cftype *cft,
return -ENODEV;

trialcs = alloc_trial_cpuset(cs);
- if (!trialcs)
- return -ENOMEM;
+ if (!trialcs) {
+ retval = -ENOMEM;
+ goto out;
+ }

switch (cft->private) {
case FILE_CPULIST:
@@ -1530,6 +1532,7 @@ static int cpuset_write_resmask(struct cgroup *cgrp, struct cftype *cft,
}

free_trial_cpuset(trialcs);
+out:
cgroup_unlock();
return retval;
}
diff --git a/mm/mremap.c b/mm/mremap.c
index 8451908..166b824 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -92,9 +92,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
*/
mapping = vma->vm_file->f_mapping;
spin_lock(&mapping->i_mmap_lock);
- if (new_vma->vm_truncate_count &&
- new_vma->vm_truncate_count != vma->vm_truncate_count)
- new_vma->vm_truncate_count = 0;
+ new_vma->vm_truncate_count = 0;
}

/*
diff --git a/net/core/dev.c b/net/core/dev.c
index fd4c1e7..49e3782 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1037,13 +1037,21 @@ EXPORT_SYMBOL(netdev_bonding_change);
void dev_load(struct net *net, const char *name)
{
struct net_device *dev;
+ int no_module;

read_lock(&dev_base_lock);
dev = __dev_get_by_name(net, name);
read_unlock(&dev_base_lock);

- if (!dev && capable(CAP_NET_ADMIN))
- request_module("%s", name);
+ no_module = !dev;
+ if (no_module && capable(CAP_NET_ADMIN))
+ no_module = request_module("netdev-%s", name);
+ if (no_module && capable(CAP_SYS_MODULE)) {
+ if (!request_module("%s", name))
+ pr_err("Loading kernel module for a network device "
+"with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s "
+"instead\n", name);
+ }
}
EXPORT_SYMBOL(dev_load);

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 1433338..cfab9e4 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1708,3 +1708,4 @@ module_exit(ipgre_fini);
MODULE_LICENSE("GPL");
MODULE_ALIAS_RTNL_LINK("gre");
MODULE_ALIAS_RTNL_LINK("gretap");
+MODULE_ALIAS_NETDEV("gre0");
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index ae40ed1..f37df1a 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -853,3 +853,4 @@ static void __exit ipip_fini(void)
module_init(ipip_init);
module_exit(ipip_fini);
MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETDEV("tunl0");
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index c595bbe..9a95c82 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -56,6 +56,7 @@
MODULE_AUTHOR("Ville Nuorvala");
MODULE_DESCRIPTION("IPv6 tunneling device");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETDEV("ip6tnl0");

#define IPV6_TLV_TEL_DST_SIZE 8

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index dbd19a7..de2ffef 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1101,4 +1101,4 @@ static int __init sit_init(void)
module_init(sit_init);
module_exit(sit_cleanup);
MODULE_LICENSE("GPL");
-MODULE_ALIAS("sit0");
+MODULE_ALIAS_NETDEV("sit0");
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index d65d348..e54392e 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -83,6 +83,8 @@ EXPORT_SYMBOL(nf_log_unregister);

int nf_log_bind_pf(u_int8_t pf, const struct nf_logger *logger)
{
+ if (pf >= ARRAY_SIZE(nf_loggers))
+ return -EINVAL;
mutex_lock(&nf_log_mutex);
if (__find_logger(pf, logger->name) == NULL) {
mutex_unlock(&nf_log_mutex);
@@ -96,6 +98,8 @@ EXPORT_SYMBOL(nf_log_bind_pf);

void nf_log_unbind_pf(u_int8_t pf)
{
+ if (pf >= ARRAY_SIZE(nf_loggers))
+ return;
mutex_lock(&nf_log_mutex);
rcu_assign_pointer(nf_loggers[pf], NULL);
mutex_unlock(&nf_log_mutex);
--
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