19 files changed, 86 insertions, 48 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9892827b6176..1831833c430e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -351,6 +351,10 @@ endchoice
 
 source "fs/Kconfig.binfmt"
 
+config FORCE_MAX_ZONEORDER
+        int
+        default "9"
+
 config PROCESS_DEBUG
         bool "Show crashed user process info"
         help
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 39921f3a9685..62f6b5a606dd 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24
-# Sat Feb  9 12:13:01 2008
+# Linux kernel version: 2.6.25-rc4
+# Wed Mar  5 11:22:59 2008
 #
 CONFIG_MMU=y
 CONFIG_ZONE_DMA=y
@@ -43,12 +43,15 @@ CONFIG_CGROUPS=y
 # CONFIG_CGROUP_DEBUG is not set
 CONFIG_CGROUP_NS=y
 # CONFIG_CPUSETS is not set
+CONFIG_GROUP_SCHED=y
 CONFIG_FAIR_GROUP_SCHED=y
-CONFIG_FAIR_USER_SCHED=y
-# CONFIG_FAIR_CGROUP_SCHED is not set
+# CONFIG_RT_GROUP_SCHED is not set
+CONFIG_USER_SCHED=y
+# CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUP_CPUACCT is not set
 # CONFIG_RESOURCE_COUNTERS is not set
 CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 CONFIG_UTS_NS=y
@@ -85,7 +88,9 @@ CONFIG_SLAB=y
 # CONFIG_MARKERS is not set
 CONFIG_HAVE_OPROFILE=y
 CONFIG_KPROBES=y
+CONFIG_KRETPROBES=y
 CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
@@ -185,6 +190,7 @@ CONFIG_IPL=y
 CONFIG_IPL_VM=y
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
+CONFIG_FORCE_MAX_ZONEORDER=9
 # CONFIG_PROCESS_DEBUG is not set
 CONFIG_PFAULT=y
 # CONFIG_SHARED_KERNEL is not set
@@ -435,6 +441,7 @@ CONFIG_DASD_EER=y
 CONFIG_MISC_DEVICES=y
 # CONFIG_EEPROM_93CX6 is not set
 # CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_HAVE_IDE is not set
 
 #
 # SCSI device support
@@ -593,6 +600,7 @@ CONFIG_S390_VMUR=m
 #
 # Sonics Silicon Backplane
 #
+# CONFIG_MEMSTICK is not set
 
 #
 # File systems
@@ -750,7 +758,6 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
 # CONFIG_FRAME_POINTER is not set
-CONFIG_FORCED_INLINING=y
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_KPROBES_SANITY_TEST is not set
 # CONFIG_BACKTRACE_SELF_TEST is not set
@@ -759,6 +766,7 @@ CONFIG_FORCED_INLINING=y
 # CONFIG_LATENCYTOP is not set
 CONFIG_SAMPLES=y
 # CONFIG_SAMPLE_KOBJECT is not set
+# CONFIG_SAMPLE_KPROBES is not set
 # CONFIG_DEBUG_PAGEALLOC is not set
 
 #
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index b3b650a93c7c..4d3e38392cb1 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -4,6 +4,11 @@
 
 EXTRA_AFLAGS    := -traditional
 
+#
+# Passing null pointers is ok for smp code, since we access the lowcore here.
+#
+CFLAGS_smp.o    := -Wno-nonnull
+
 obj-y   :=  bitmap.o traps.o time.o process.o base.o early.o \
             setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
             semaphore.o s390_ext.o debug.o irq.o ipl.o dis.o diag.o
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 9f7b73b180f0..01832c440636 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -88,13 +88,17 @@ static noinline __init void create_kernel_nss(void)
 
         __cpcmd(defsys_cmd, NULL, 0, &response);
 
-        if (response != 0)
+        if (response != 0) {
+                kernel_nss_name[0] = '\0';
                 return;
+        }
 
         __cpcmd(savesys_cmd, NULL, 0, &response);
 
-        if (response != strlen(savesys_cmd))
+        if (response != strlen(savesys_cmd)) {
+                kernel_nss_name[0] = '\0';
                 return;
+        }
 
         ipl_flags = IPL_NSS_VALID;
 }
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 60acdc266db1..375232c46c7a 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -704,6 +704,7 @@ void reipl_run(struct shutdown_trigger *trigger)
         default:
                 break;
         }
+        disabled_wait((unsigned long) __builtin_return_address(0));
 }
 
 static void __init reipl_probe(void)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 1c59ec161cf8..ce203154d8ce 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -152,6 +152,10 @@ static void default_idle(void)
         local_mcck_disable();
         if (test_thread_flag(TIF_MCCK_PENDING)) {
                 local_mcck_enable();
+                /* disable monitor call class 0 */
+                __ctl_clear_bit(8, 15);
+                atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE,
+                                           hcpu);
                 local_irq_enable();
                 s390_handle_mcck();
                 return;
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 818bd09c0260..8f894d380a62 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -629,14 +629,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
         panic_stack = __get_free_page(GFP_KERNEL);
         if (!panic_stack || !async_stack)
                 goto out;
-        /*
-         * Only need to copy the first 512 bytes from address 0. But since
-         * the compiler emits a warning if src == NULL for memcpy use copy_page
-         * instead. Copies more than needed but this code is not performance
-         * critical.
-         */
-        copy_page(lowcore, &S390_lowcore);
-        memset((void *)lowcore + 512, 0, sizeof(*lowcore) - 512);
+        memcpy(lowcore, &S390_lowcore, 512);
+        memset((char *)lowcore + 512, 0, sizeof(*lowcore) - 512);
         lowcore->async_stack = async_stack + ASYNC_SIZE;
         lowcore->panic_stack = panic_stack + PAGE_SIZE;
 
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 76a5dd1b4ce9..cb232c155360 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -209,8 +209,6 @@ static void stop_hz_timer(void)
  */
 static void start_hz_timer(void)
 {
-        BUG_ON(!in_interrupt());
-
         if (!cpu_isset(smp_processor_id(), nohz_cpu_mask))
                 return;
         account_ticks(get_clock());
diff --git a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
index 39f8cb18296c..c2f930d86640 100644
--- a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
+++ b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
@@ -55,7 +55,6 @@ static int eps_set_state(struct eps_cpu_data *centaur,
 {
         struct cpufreq_freqs freqs;
         u32 lo, hi;
-        u8 current_multiplier, current_voltage;
         int err = 0;
         int i;
 
@@ -95,6 +94,10 @@ postchange:
         rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
         freqs.new = centaur->fsb * ((lo >> 8) & 0xff);
 
+#ifdef DEBUG
+        {
+        u8 current_multiplier, current_voltage;
+
         /* Print voltage and multiplier */
         rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
         current_voltage = lo & 0xff;
@@ -103,7 +106,8 @@ postchange:
         current_multiplier = (lo >> 8) & 0xff;
         printk(KERN_INFO "eps: Current multiplier = %d\n",
                 current_multiplier);
-
+        }
+#endif
         cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
         return err;
 }
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 1db93b619074..8a49835bd0f8 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -186,6 +186,7 @@ enum {
         AHCI_HFLAG_NO_MSI               = (1 << 5), /* no PCI MSI */
         AHCI_HFLAG_NO_PMP               = (1 << 6), /* no PMP */
         AHCI_HFLAG_NO_HOTPLUG           = (1 << 7), /* ignore PxSERR.DIAG.N */
+        AHCI_HFLAG_SECT255              = (1 << 8), /* max 255 sectors */
 
         /* ap->flags bits */
 
@@ -255,6 +256,7 @@ static void ahci_vt8251_error_handler(struct ata_port *ap);
 static void ahci_p5wdh_error_handler(struct ata_port *ap);
 static void ahci_post_internal_cmd(struct ata_queued_cmd *qc);
 static int ahci_port_resume(struct ata_port *ap);
+static void ahci_dev_config(struct ata_device *dev);
 static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl);
 static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag,
                                u32 opts);
@@ -294,6 +296,8 @@ static const struct ata_port_operations ahci_ops = {
         .check_altstatus        = ahci_check_status,
         .dev_select             = ata_noop_dev_select,
 
+        .dev_config             = ahci_dev_config,
+
         .tf_read                = ahci_tf_read,
 
         .qc_defer               = sata_pmp_qc_defer_cmd_switch,
@@ -425,7 +429,7 @@ static const struct ata_port_info ahci_port_info[] = {
         /* board_ahci_sb600 */
         {
                 AHCI_HFLAGS     (AHCI_HFLAG_IGN_SERR_INTERNAL |
-                                 AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_PMP),
+                                 AHCI_HFLAG_SECT255 | AHCI_HFLAG_NO_PMP),
                 .flags          = AHCI_FLAG_COMMON,
                 .link_flags     = AHCI_LFLAG_COMMON,
                 .pio_mask       = 0x1f, /* pio0-4 */
@@ -1176,6 +1180,14 @@ static void ahci_init_controller(struct ata_host *host)
         VPRINTK("HOST_CTL 0x%x\n", tmp);
 }
 
+static void ahci_dev_config(struct ata_device *dev)
+{
+        struct ahci_host_priv *hpriv = dev->link->ap->host->private_data;
+
+        if (hpriv->flags & AHCI_HFLAG_SECT255)
+                dev->max_sectors = 255;
+}
+
 static unsigned int ahci_dev_classify(struct ata_port *ap)
 {
         void __iomem *port_mmio = ahci_port_base(ap);
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 0713872cf65c..a742efa0da2b 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -27,7 +27,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME        "pata_hpt366"
-#define DRV_VERSION     "0.6.1"
+#define DRV_VERSION     "0.6.2"
 
 struct hpt_clock {
         u8      xfer_speed;
@@ -180,9 +180,9 @@ static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask)
                 if (hpt_dma_blacklisted(adev, "UDMA",  bad_ata33))
                         mask &= ~ATA_MASK_UDMA;
                 if (hpt_dma_blacklisted(adev, "UDMA3", bad_ata66_3))
-                        mask &= ~(0x07 << ATA_SHIFT_UDMA);
+                        mask &= ~(0xF8 << ATA_SHIFT_UDMA);
                 if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4))
-                        mask &= ~(0x0F << ATA_SHIFT_UDMA);
+                        mask &= ~(0xF0 << ATA_SHIFT_UDMA);
         }
         return ata_pci_default_filter(adev, mask);
 }
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 68eb34929cec..9a10878b2ad8 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -24,7 +24,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME        "pata_hpt37x"
-#define DRV_VERSION     "0.6.9"
+#define DRV_VERSION     "0.6.11"
 
 struct hpt_clock {
         u8      xfer_speed;
@@ -281,7 +281,7 @@ static unsigned long hpt370_filter(struct ata_device *adev, unsigned long mask)
                 if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33))
                         mask &= ~ATA_MASK_UDMA;
                 if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5))
-                        mask &= ~(0x1F << ATA_SHIFT_UDMA);
+                        mask &= ~(0xE0 << ATA_SHIFT_UDMA);
         }
         return ata_pci_default_filter(adev, mask);
 }
@@ -297,7 +297,7 @@ static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask)
 {
         if (adev->class == ATA_DEV_ATA) {
                 if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5))
-                        mask &= ~ (0x1F << ATA_SHIFT_UDMA);
+                        mask &= ~(0xE0 << ATA_SHIFT_UDMA);
         }
         return ata_pci_default_filter(adev, mask);
 }
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 9c523fbf529e..a589c0fa0dbb 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -226,7 +226,7 @@ static unsigned long serverworks_csb_filter(struct ata_device *adev, unsigned lo
 
         for (i = 0; (p = csb_bad_ata100[i]) != NULL; i++) {
                 if (!strcmp(p, model_num))
-                        mask &= ~(0x1F << ATA_SHIFT_UDMA);
+                        mask &= ~(0xE0 << ATA_SHIFT_UDMA);
         }
         return ata_pci_default_filter(adev, mask);
 }
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 89a29cd93783..35a26a3e5f68 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -671,13 +671,13 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf)
 {
         struct cpufreq_policy * policy = to_policy(kobj);
         struct freq_attr * fattr = to_attr(attr);
-        ssize_t ret;
+        ssize_t ret = -EINVAL;
         policy = cpufreq_cpu_get(policy->cpu);
         if (!policy)
-                return -EINVAL;
+                goto no_policy;
 
         if (lock_policy_rwsem_read(policy->cpu) < 0)
-                return -EINVAL;
+                goto fail;
 
         if (fattr->show)
                 ret = fattr->show(policy, buf);
@@ -685,8 +685,9 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf)
                 ret = -EIO;
 
         unlock_policy_rwsem_read(policy->cpu);
-
+fail:
         cpufreq_cpu_put(policy);
+no_policy:
         return ret;
 }
 
@@ -695,13 +696,13 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr,
 {
         struct cpufreq_policy * policy = to_policy(kobj);
         struct freq_attr * fattr = to_attr(attr);
-        ssize_t ret;
+        ssize_t ret = -EINVAL;
         policy = cpufreq_cpu_get(policy->cpu);
         if (!policy)
-                return -EINVAL;
+                goto no_policy;
 
         if (lock_policy_rwsem_write(policy->cpu) < 0)
-                return -EINVAL;
+                goto fail;
 
         if (fattr->store)
                 ret = fattr->store(policy, buf, count);
@@ -709,8 +710,9 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr,
                 ret = -EIO;
 
         unlock_policy_rwsem_write(policy->cpu);
-
+fail:
         cpufreq_cpu_put(policy);
+no_policy:
         return ret;
 }
 
@@ -1775,7 +1777,7 @@ static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata cpufreq_cpu_notifier =
+static struct notifier_block __refdata cpufreq_cpu_notifier =
 {
     .notifier_call = cpufreq_cpu_callback,
 };
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 1b8312b02006..070421a5480e 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -323,7 +323,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block cpufreq_stat_cpu_notifier __cpuinitdata =
+static struct notifier_block cpufreq_stat_cpu_notifier __refdata =
 {
         .notifier_call = cpufreq_stat_cpu_callback,
 };
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index f69714a0e9e7..b19db20a0bef 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -2310,10 +2310,8 @@ static int
 dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2)
 {
 
-        /* check failed CCW */
-        if (cqr1->irb.scsw.cpa != cqr2->irb.scsw.cpa) {
-                //      return 0;       /* CCW doesn't match */
-        }
+        if (cqr1->startdev != cqr2->startdev)
+                return 0;
 
         if (cqr1->irb.esw.esw0.erw.cons != cqr2->irb.esw.esw0.erw.cons)
                 return 0;
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 28a86f070048..556063e8f7a9 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -62,8 +62,10 @@ dasd_devices_show(struct seq_file *m, void *v)
                 return 0;
         if (device->block)
                 block = device->block;
-        else
+        else {
+                dasd_put_device(device);
                 return 0;
+        }
         /* Print device number. */
         seq_printf(m, "%s", device->cdev->dev.bus_id);
         /* Print discipline string. */
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 92f527201792..f7b258dfd52c 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -367,7 +367,7 @@ sclp_vt220_timeout(unsigned long data)
         sclp_vt220_emit_current();
 }
 
-#define BUFFER_MAX_DELAY        HZ/2
+#define BUFFER_MAX_DELAY        HZ/20
 
 /* 
  * Internal implementation of the write function. Write COUNT bytes of data
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index d0c6fd3b1c19..7b0b81901297 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -490,10 +490,12 @@ static int ap_device_probe(struct device *dev)
         int rc;
 
         ap_dev->drv = ap_drv;
-        spin_lock_bh(&ap_device_lock);
-        list_add(&ap_dev->list, &ap_device_list);
-        spin_unlock_bh(&ap_device_lock);
         rc = ap_drv->probe ? ap_drv->probe(ap_dev) : -ENODEV;
+        if (!rc) {
+                spin_lock_bh(&ap_device_lock);
+                list_add(&ap_dev->list, &ap_device_list);
+                spin_unlock_bh(&ap_device_lock);
+        }
         return rc;
 }
 
@@ -532,11 +534,11 @@ static int ap_device_remove(struct device *dev)
 
         ap_flush_queue(ap_dev);
         del_timer_sync(&ap_dev->timeout);
-        if (ap_drv->remove)
-                ap_drv->remove(ap_dev);
         spin_lock_bh(&ap_device_lock);
         list_del_init(&ap_dev->list);
         spin_unlock_bh(&ap_device_lock);
+        if (ap_drv->remove)
+                ap_drv->remove(ap_dev);
         spin_lock_bh(&ap_dev->lock);
         atomic_sub(ap_dev->queue_count, &ap_poll_requests);
         spin_unlock_bh(&ap_dev->lock);