Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  fs/dcache: allow d_obtain_alias() to return unhashed dentries
  Check for immutable/append flag in fallocate path
  sysctl: the include of rcupdate.h is only needed in the kernel
  fat: fix d_revalidate oopsen on NFS exports
  jfs: fix d_revalidate oopsen on NFS exports
  ocfs2: fix d_revalidate oopsen on NFS exports
  gfs2: fix d_revalidate oopsen on NFS exports
  fuse: fix d_revalidate oopsen on NFS exports
  ceph: fix d_revalidate oopsen on NFS exports
  reiserfs xattr ->d_revalidate() shouldn't care about RCU
  /proc/self is never going to be invalidated...

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index 380d48bacd16d0047cd1cb5006853ff4adf9506c..26b8c807f8f12d5ee5e3b06f7f2ec0a1523d559c 100644 (file)
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -33,9 +33,25 @@
 //
 //----------------------------------------------------------------------------
 #include <linux/cache.h>
+#include <linux/threads.h>
 #include <asm/types.h>
 #include <asm/mmu.h>
 
+/*
+ * We only have to have statically allocated lppaca structs on
+ * legacy iSeries, which supports at most 64 cpus.
+ */
+#ifdef CONFIG_PPC_ISERIES
+#if NR_CPUS < 64
+#define NR_LPPACAS     NR_CPUS
+#else
+#define NR_LPPACAS     64
+#endif
+#else /* not iSeries */
+#define NR_LPPACAS     1
+#endif
+
+
 /* The Hypervisor barfs if the lppaca crosses a page boundary.  A 1k
  * alignment is sufficient to prevent this */
 struct lppaca {

diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index ebf9846f3c3b30b7cf2d61d48a8a96c37b702c1c..f4adf89d7614150a73c44ad8251ae13ad7934b16 100644 (file)
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -26,20 +26,6 @@ extern unsigned long __toc_start;
 
 #ifdef CONFIG_PPC_BOOK3S
 
-/*
- * We only have to have statically allocated lppaca structs on
- * legacy iSeries, which supports at most 64 cpus.
- */
-#ifdef CONFIG_PPC_ISERIES
-#if NR_CPUS < 64
-#define NR_LPPACAS     NR_CPUS
-#else
-#define NR_LPPACAS     64
-#endif
-#else /* not iSeries */
-#define NR_LPPACAS     1
-#endif
-
 /*
  * The structure which the hypervisor knows about - this structure
  * should not cross a page boundary.  The vpa_init/register_vpa call

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index fd4812329570d1658640c22776755dda9c1170fe..0dc95c0aa3beb01f9f46b2ebecaa551baa844e6f 100644 (file)
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1516,7 +1516,8 @@ int start_topology_update(void)
 {
        int rc = 0;
 
-       if (firmware_has_feature(FW_FEATURE_VPHN) &&
+       /* Disabled until races with load balancing are fixed */
+       if (0 && firmware_has_feature(FW_FEATURE_VPHN) &&
            get_lppaca()->shared_proc) {
                vphn_enabled = 1;
                setup_cpu_associativity_change_counters();

diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
index fdb7384c0c4f3fe372207d4ad8bdc48a364a97c0..f0491cc2890004167a58ebefcdf24a37dd87534b 100644 (file)
--- a/arch/powerpc/platforms/iseries/dt.c
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -242,8 +242,8 @@ static void __init dt_cpus(struct iseries_flat_dt *dt)
        pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA  */
        pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
 
-       for (i = 0; i < NR_CPUS; i++) {
-               if (lppaca_of(i).dyn_proc_status >= 2)
+       for (i = 0; i < NR_LPPACAS; i++) {
+               if (lppaca[i].dyn_proc_status >= 2)
                        continue;
 
                snprintf(p, 32 - (p - buf), "@%d", i);
@@ -251,7 +251,7 @@ static void __init dt_cpus(struct iseries_flat_dt *dt)
 
                dt_prop_str(dt, "device_type", device_type_cpu);
 
-               index = lppaca_of(i).dyn_hv_phys_proc_index;
+               index = lppaca[i].dyn_hv_phys_proc_index;
                d = &xIoHriProcessorVpd[index];
 
                dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);

diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index b0863410517f517129d111c4891cec990736abb4..2946ae10fbfdba2ea2eb2cc1e730eedf1cc4ad8b 100644 (file)
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -680,6 +680,7 @@ void * __init iSeries_early_setup(void)
         * on but calling this function multiple times is fine.
         */
        identify_cpu(0, mfspr(SPRN_PVR));
+       initialise_paca(&boot_paca, 0);
 
        powerpc_firmware_features |= FW_FEATURE_ISERIES;
        powerpc_firmware_features |= FW_FEATURE_LPAR;

diff --git a/arch/x86/boot/compressed/mkpiggy.c b/arch/x86/boot/compressed/mkpiggy.c
index 646aa78ba5fdb2fe89e54d52b88a2ce5f7c6e20f..46a82388243785a4c98dbb4641765549dc47d12b 100644 (file)
--- a/arch/x86/boot/compressed/mkpiggy.c
+++ b/arch/x86/boot/compressed/mkpiggy.c
@@ -62,7 +62,12 @@ int main(int argc, char *argv[])
        if (fseek(f, -4L, SEEK_END)) {
                perror(argv[1]);
        }
-       fread(&olen, sizeof olen, 1, f);
+
+       if (fread(&olen, sizeof(olen), 1, f) != 1) {
+               perror(argv[1]);
+               return 1;
+       }
+
        ilen = ftell(f);
        olen = getle32(&olen);
        fclose(f);

diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
index ce1d54c8a433a6b866977beeb9c6681e0db64746..3e094af443c396a6ccf9f08628ecafc2a5d974ab 100644 (file)
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ b/arch/x86/include/asm/uv/uv_bau.h
@@ -176,7 +176,7 @@ struct bau_msg_payload {
 struct bau_msg_header {
        unsigned int dest_subnodeid:6;  /* must be 0x10, for the LB */
        /* bits 5:0 */
-       unsigned int base_dest_nodeid:15; /* nasid (pnode<<1) of */
+       unsigned int base_dest_nodeid:15; /* nasid of the */
        /* bits 20:6 */                   /* first bit in uvhub map */
        unsigned int command:8; /* message type */
        /* bits 28:21 */

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 95ea1551eebca344bee38ebc160ba8f3057c1734..1337c51b07d7732dbf2a50d568b38c87d0ce65e8 100644 (file)
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -780,11 +780,7 @@ void __cpuinit numa_add_cpu(int cpu)
        int physnid;
        int nid = NUMA_NO_NODE;
 
-       apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
-       if (apicid != BAD_APICID)
-               nid = apicid_to_node[apicid];
-       if (nid == NUMA_NO_NODE)
-               nid = early_cpu_to_node(cpu);
+       nid = early_cpu_to_node(cpu);
        BUG_ON(nid == NUMA_NO_NODE || !node_online(nid));
 
        /*

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index df58e9cad96ae9441a4f86f22900a6e0bf05aa64..a7b38d35c29a1ce7578d36e38cfe04616143b39f 100644 (file)
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1364,11 +1364,11 @@ uv_activation_descriptor_init(int node, int pnode)
                memset(bd2, 0, sizeof(struct bau_desc));
                bd2->header.sw_ack_flag = 1;
                /*
-                * base_dest_nodeid is the nasid (pnode<<1) of the first uvhub
+                * base_dest_nodeid is the nasid of the first uvhub
                 * in the partition. The bit map will indicate uvhub numbers,
                 * which are 0-N in a partition. Pnodes are unique system-wide.
                 */
-               bd2->header.base_dest_nodeid = uv_partition_base_pnode << 1;
+               bd2->header.base_dest_nodeid = UV_PNODE_TO_NASID(uv_partition_base_pnode);
                bd2->header.dest_subnodeid = 0x10; /* the LB */
                bd2->header.command = UV_NET_ENDPOINT_INTD;
                bd2->header.int_both = 1;

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 3e6f486f4605b57af97797e8dae0d9e2eea35b3b..2abe240dae5837ff2c993a804012f9439b17390d 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1553,7 +1553,17 @@
 
 /* Backlight control */
 #define BLC_PWM_CTL            0x61254
+#define   BACKLIGHT_MODULATION_FREQ_SHIFT              (17)
 #define BLC_PWM_CTL2           0x61250 /* 965+ only */
+#define   BLM_COMBINATION_MODE (1 << 30)
+/*
+ * This is the most significant 15 bits of the number of backlight cycles in a
+ * complete cycle of the modulated backlight control.
+ *
+ * The actual value is this field multiplied by two.
+ */
+#define   BACKLIGHT_MODULATION_FREQ_MASK               (0x7fff << 17)
+#define   BLM_LEGACY_MODE                              (1 << 16)
 /*
  * This is the number of cycles out of the backlight modulation cycle for which
  * the backlight is on.

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index d860abeda70f54905355ceae824174ae0e19943b..f8f86e57df2264c4578f10935b48f78370f49d4c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -30,6 +30,8 @@
 
 #include "intel_drv.h"
 
+#define PCI_LBPC 0xf4 /* legacy/combination backlight modes */
+
 void
 intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
                       struct drm_display_mode *adjusted_mode)
@@ -110,6 +112,19 @@ done:
        dev_priv->pch_pf_size = (width << 16) | height;
 }
 
+static int is_backlight_combination_mode(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+
+       if (INTEL_INFO(dev)->gen >= 4)
+               return I915_READ(BLC_PWM_CTL2) & BLM_COMBINATION_MODE;
+
+       if (IS_GEN2(dev))
+               return I915_READ(BLC_PWM_CTL) & BLM_LEGACY_MODE;
+
+       return 0;
+}
+
 static u32 i915_read_blc_pwm_ctl(struct drm_i915_private *dev_priv)
 {
        u32 val;
@@ -166,6 +181,9 @@ u32 intel_panel_get_max_backlight(struct drm_device *dev)
                        if (INTEL_INFO(dev)->gen < 4)
                                max &= ~1;
                }
+
+               if (is_backlight_combination_mode(dev))
+                       max *= 0xff;
        }
 
        DRM_DEBUG_DRIVER("max backlight PWM = %d\n", max);
@@ -183,6 +201,14 @@ u32 intel_panel_get_backlight(struct drm_device *dev)
                val = I915_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
                if (IS_PINEVIEW(dev))
                        val >>= 1;
+
+               if (is_backlight_combination_mode(dev)){
+                       u8 lbpc;
+
+                       val &= ~1;
+                       pci_read_config_byte(dev->pdev, PCI_LBPC, &lbpc);
+                       val *= lbpc;
+               }
        }
 
        DRM_DEBUG_DRIVER("get backlight PWM = %d\n", val);
@@ -205,6 +231,16 @@ void intel_panel_set_backlight(struct drm_device *dev, u32 level)
 
        if (HAS_PCH_SPLIT(dev))
                return intel_pch_panel_set_backlight(dev, level);
+
+       if (is_backlight_combination_mode(dev)){
+               u32 max = intel_panel_get_max_backlight(dev);
+               u8 lbpc;
+
+               lbpc = level * 0xfe / max + 1;
+               level /= lbpc;
+               pci_write_config_byte(dev->pdev, PCI_LBPC, lbpc);
+       }
+
        tmp = I915_READ(BLC_PWM_CTL);
        if (IS_PINEVIEW(dev)) {
                tmp &= ~(BACKLIGHT_DUTY_CYCLE_MASK - 1);

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d971346b0340da50ae229f0dda8244f66c0eab2b..71caf7a5e6c6cc59fd975f06a0ce6bb304288d52 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2392,6 +2392,9 @@ extern int netdev_notice(const struct net_device *dev, const char *format, ...)
 extern int netdev_info(const struct net_device *dev, const char *format, ...)
        __attribute__ ((format (printf, 2, 3)));
 
+#define MODULE_ALIAS_NETDEV(device) \
+       MODULE_ALIAS("netdev-" device)
+
 #if defined(DEBUG)
 #define netdev_dbg(__dev, format, args...)                     \
        netdev_printk(KERN_DEBUG, __dev, format, ##args)

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index ad6267714c840b2ee53154faaece04b2f2caee8a..01f75a5f17af1b3fc8aec65801f1642b4db0716a 100644 (file)
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -210,11 +210,12 @@ static void dequeue_rt_entity(struct sched_rt_entity *rt_se);
 
 static void sched_rt_rq_enqueue(struct rt_rq *rt_rq)
 {
-       int this_cpu = smp_processor_id();
        struct task_struct *curr = rq_of_rt_rq(rt_rq)->curr;
        struct sched_rt_entity *rt_se;
 
-       rt_se = rt_rq->tg->rt_se[this_cpu];
+       int cpu = cpu_of(rq_of_rt_rq(rt_rq));
+
+       rt_se = rt_rq->tg->rt_se[cpu];
 
        if (rt_rq->rt_nr_running) {
                if (rt_se && !on_rt_rq(rt_se))
@@ -226,10 +227,10 @@ static void sched_rt_rq_enqueue(struct rt_rq *rt_rq)
 
 static void sched_rt_rq_dequeue(struct rt_rq *rt_rq)
 {
-       int this_cpu = smp_processor_id();
        struct sched_rt_entity *rt_se;
+       int cpu = cpu_of(rq_of_rt_rq(rt_rq));
 
-       rt_se = rt_rq->tg->rt_se[this_cpu];
+       rt_se = rt_rq->tg->rt_se[cpu];
 
        if (rt_se && on_rt_rq(rt_se))
                dequeue_rt_entity(rt_se);
@@ -565,8 +566,11 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
                        if (rt_rq->rt_time || rt_rq->rt_nr_running)
                                idle = 0;
                        raw_spin_unlock(&rt_rq->rt_runtime_lock);
-               } else if (rt_rq->rt_nr_running)
+               } else if (rt_rq->rt_nr_running) {
                        idle = 0;
+                       if (!rt_rq_throttled(rt_rq))
+                               enqueue = 1;
+               }
 
                if (enqueue)
                        sched_rt_rq_enqueue(rt_rq);

diff --git a/net/core/dev.c b/net/core/dev.c
index 8ae6631abcc2093fe2ce9929f255be7e9c1eaff1..6561021d22d1fef9b58ec54ec2b394400fb7ba25 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1114,13 +1114,21 @@ EXPORT_SYMBOL(netdev_bonding_change);
 void dev_load(struct net *net, const char *name)
 {
        struct net_device *dev;
+       int no_module;
 
        rcu_read_lock();
        dev = dev_get_by_name_rcu(net, name);
        rcu_read_unlock();
 
-       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 6613edfac28c1b10ebd9a71ef0c2f2cde479db64..d1d0e2c256fc4080033a01a621f73b1c3b080b7e 100644 (file)
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1765,4 +1765,4 @@ module_exit(ipgre_fini);
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_RTNL_LINK("gre");
 MODULE_ALIAS_RTNL_LINK("gretap");
-MODULE_ALIAS("gre0");
+MODULE_ALIAS_NETDEV("gre0");

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 988f52fba54a172bc1c49a692393f121314ba444..a5f58e7cbb26eec188786ff1324cfc540aba1ce1 100644 (file)
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -913,4 +913,4 @@ static void __exit ipip_fini(void)
 module_init(ipip_init);
 module_exit(ipip_fini);
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("tunl0");
+MODULE_ALIAS_NETDEV("tunl0");

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 8ce38f10a547e68fee50a9151cfb8727770bceda..d2c16e10f650807ec32cc0502efa32cea8bc93b6 100644 (file)
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1290,4 +1290,4 @@ 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/tools/perf/util/header.c b/tools/perf/util/header.c
index f6a929e74981e48844b0af2d21599ff5bb725ac3..0866bcdb5e8e713682fdb2eaa0e2a54c0be79993 100644 (file)
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -270,11 +270,15 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
                          const char *name, bool is_kallsyms)
 {
        const size_t size = PATH_MAX;
-       char *realname = realpath(name, NULL),
-            *filename = malloc(size),
+       char *realname, *filename = malloc(size),
             *linkname = malloc(size), *targetname;
        int len, err = -1;
 
+       if (is_kallsyms)
+               realname = (char *)name;
+       else
+               realname = realpath(name, NULL);
+
        if (realname == NULL || filename == NULL || linkname == NULL)
                goto out_free;
 
@@ -306,7 +310,8 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
        if (symlink(targetname, linkname) == 0)
                err = 0;
 out_free:
-       free(realname);
+       if (!is_kallsyms)
+               free(realname);
        free(filename);
        free(linkname);
        return err;

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7821d0e6866f10e745762cc02c57237461ae0f8d..b1bf490aff8808ad1a53d1b98491ee7a919386da 100644 (file)
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1836,7 +1836,7 @@ int dso__load_vmlinux(struct dso *self, struct map *map,
        int err = -1, fd;
        char symfs_vmlinux[PATH_MAX];
 
-       snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s/%s",
+       snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s%s",
                 symbol_conf.symfs, vmlinux);
        fd = open(symfs_vmlinux, O_RDONLY);
        if (fd < 0)