Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

14 files changed, 48 insertions, 25 deletions

diff --git a/include/asm-x86_64/cache.h b/include/asm-x86_64/cache.h
index c8043a1..f8dff1c 100644
--- a/include/asm-x86_64/cache.h
+++ b/include/asm-x86_64/cache.h
@@ -20,8 +20,8 @@
        __attribute__((__section__(".data.page_aligned")))
 #endif
 
-#define __read_mostly __attribute__((__section__(".data.read_mostly")))
-
 #endif
 
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
 #endif
diff --git a/include/asm-x86_64/cpufeature.h b/include/asm-x86_64/cpufeature.h
index 76bb619..662964b 100644
--- a/include/asm-x86_64/cpufeature.h
+++ b/include/asm-x86_64/cpufeature.h
@@ -64,6 +64,7 @@
 #define X86_FEATURE_REP_GOOD	(3*32+ 4) /* rep microcode works well on this CPU */
 #define X86_FEATURE_CONSTANT_TSC (3*32+5) /* TSC runs at constant rate */
 #define X86_FEATURE_SYNC_RDTSC  (3*32+6)  /* RDTSC syncs CPU core */
+#define X86_FEATURE_FXSAVE_LEAK (3*32+7)  /* FIP/FOP/FDP leaks through FXSAVE */
 
 /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
 #define X86_FEATURE_XMM3	(4*32+ 0) /* Streaming SIMD Extensions-3 */
diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h
index 8dcc326..93b51df 100644
--- a/include/asm-x86_64/e820.h
+++ b/include/asm-x86_64/e820.h
@@ -47,7 +47,8 @@ extern void contig_e820_setup(void);
 extern unsigned long e820_end_of_ram(void);
 extern void e820_reserve_resources(void);
 extern void e820_print_map(char *who);
-extern int e820_mapped(unsigned long start, unsigned long end, unsigned type);
+extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
+extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
 
 extern void e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end);
 extern void e820_setup_gap(void);
diff --git a/include/asm-x86_64/hpet.h b/include/asm-x86_64/hpet.h
index 08b75c1..18ff7ee 100644
--- a/include/asm-x86_64/hpet.h
+++ b/include/asm-x86_64/hpet.h
@@ -51,6 +51,8 @@
 
 #define HPET_TN_ROUTE_SHIFT	9
 
+#define HPET_TICK_RATE (HZ * 100000UL)
+
 extern int is_hpet_enabled(void);
 extern int hpet_rtc_timer_init(void);
 extern int oem_force_hpet_timer(void);
diff --git a/include/asm-x86_64/i387.h b/include/asm-x86_64/i387.h
index 876eb9a..cba8a3b 100644
--- a/include/asm-x86_64/i387.h
+++ b/include/asm-x86_64/i387.h
@@ -72,6 +72,23 @@ extern int set_fpregs(struct task_struct *tsk,
 #define set_fpu_swd(t,val) ((t)->thread.i387.fxsave.swd = (val))
 #define set_fpu_fxsr_twd(t,val) ((t)->thread.i387.fxsave.twd = (val))
 
+#define X87_FSW_ES (1 << 7)	/* Exception Summary */
+
+/* AMD CPUs don't save/restore FDP/FIP/FOP unless an exception
+   is pending. Clear the x87 state here by setting it to fixed
+   values. The kernel data segment can be sometimes 0 and sometimes
+   new user value. Both should be ok.
+   Use the PDA as safe address because it should be already in L1. */
+static inline void clear_fpu_state(struct i387_fxsave_struct *fx)
+{
+	if (unlikely(fx->swd & X87_FSW_ES))
+		 asm volatile("fnclex");
+	alternative_input(ASM_NOP8 ASM_NOP2,
+	     	     "    emms\n"		/* clear stack tags */
+	     	     "    fildl %%gs:0",	/* load to clear state */
+		     X86_FEATURE_FXSAVE_LEAK);
+}
+
 static inline int restore_fpu_checking(struct i387_fxsave_struct *fx) 
 { 
 	int err;
@@ -119,6 +136,7 @@ static inline int save_i387_checking(struct i387_fxsave_struct __user *fx)
 #endif
 	if (unlikely(err))
 		__clear_user(fx, sizeof(struct i387_fxsave_struct));
+	/* No need to clear here because the caller clears USED_MATH */
 	return err;
 } 
 
@@ -149,7 +167,7 @@ static inline void __fxsave_clear(struct task_struct *tsk)
 				"i" (offsetof(__typeof__(*tsk),
 					      thread.i387.fxsave)));
 #endif
-	__asm__ __volatile__("fnclex");
+	clear_fpu_state(&tsk->thread.i387.fxsave);
 }
 
 static inline void kernel_fpu_begin(void)
diff --git a/include/asm-x86_64/ia32_unistd.h b/include/asm-x86_64/ia32_unistd.h
index eeb2bcd..b4f4b17 100644
--- a/include/asm-x86_64/ia32_unistd.h
+++ b/include/asm-x86_64/ia32_unistd.h
@@ -317,6 +317,4 @@
 #define __NR_ia32_ppoll			309
 #define __NR_ia32_unshare		310
 
-#define IA32_NR_syscalls 315	/* must be > than biggest syscall! */
-
 #endif /* _ASM_X86_64_IA32_UNISTD_H_ */
diff --git a/include/asm-x86_64/io.h b/include/asm-x86_64/io.h
index cafdfb3..a05da8a 100644
--- a/include/asm-x86_64/io.h
+++ b/include/asm-x86_64/io.h
@@ -177,7 +177,7 @@ static inline __u16 __readw(const volatile void __iomem *addr)
 {
 	return *(__force volatile __u16 *)addr;
 }
-static inline __u32 __readl(const volatile void __iomem *addr)
+static __always_inline __u32 __readl(const volatile void __iomem *addr)
 {
 	return *(__force volatile __u32 *)addr;
 }
diff --git a/include/asm-x86_64/mce.h b/include/asm-x86_64/mce.h
index 5d298b7..7229785 100644
--- a/include/asm-x86_64/mce.h
+++ b/include/asm-x86_64/mce.h
@@ -70,6 +70,9 @@ struct mce_log {
 #define MCE_THRESHOLD_BASE      MCE_EXTENDED_BANK + 1 /* MCE_AMD */
 #define MCE_THRESHOLD_DRAM_ECC  MCE_THRESHOLD_BASE + 4
 
+#ifdef __KERNEL__
+#include <asm/atomic.h>
+
 void mce_log(struct mce *m);
 #ifdef CONFIG_X86_MCE_INTEL
 void mce_intel_feature_init(struct cpuinfo_x86 *c);
@@ -87,4 +90,8 @@ static inline void mce_amd_feature_init(struct cpuinfo_x86 *c)
 }
 #endif
 
+extern atomic_t mce_entry;
+
+#endif
+
 #endif
diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index 6b18cd8..6944e71 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -12,7 +12,8 @@
 
 #include <asm/smp.h>
 
-#define NODEMAPSIZE 0xfff
+/* Should really switch to dynamic allocation at some point */
+#define NODEMAPSIZE 0x4fff
 
 /* Simple perfect hash to map physical addresses to node numbers */
 struct memnode {
diff --git a/include/asm-x86_64/numa.h b/include/asm-x86_64/numa.h
index f6cbb4c..1cc92fe 100644
--- a/include/asm-x86_64/numa.h
+++ b/include/asm-x86_64/numa.h
@@ -2,7 +2,6 @@
 #define _ASM_X8664_NUMA_H 1
 
 #include <linux/nodemask.h>
-#include <asm/numnodes.h>
 
 struct bootnode {
 	u64 start,end; 
@@ -18,6 +17,8 @@ extern void numa_init_array(void);
 extern int numa_off;
 
 extern void numa_set_node(int cpu, int node);
+extern void srat_reserve_add_area(int nodeid);
+extern int hotadd_percent;
 
 extern unsigned char apicid_to_node[256];
 #ifdef CONFIG_NUMA
diff --git a/include/asm-x86_64/numnodes.h b/include/asm-x86_64/numnodes.h
deleted file mode 100644
index 32be16b..0000000
--- a/include/asm-x86_64/numnodes.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_X8664_NUMNODES_H
-#define _ASM_X8664_NUMNODES_H 1
-
-#include <linux/config.h>
-
-#ifdef CONFIG_NUMA
-#define NODES_SHIFT	6
-#else
-#define NODES_SHIFT	0
-#endif
-
-#endif
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h
index 4405b4a..7f33aaf 100644
--- a/include/asm-x86_64/percpu.h
+++ b/include/asm-x86_64/percpu.h
@@ -26,7 +26,7 @@
 #define percpu_modcopy(pcpudst, src, size)			\
 do {								\
 	unsigned int __i;					\
-	for_each_cpu(__i)					\
+	for_each_possible_cpu(__i)				\
 		memcpy((pcpudst)+__per_cpu_offset(__i),		\
 		       (src), (size));				\
 } while (0)
diff --git a/include/asm-x86_64/timex.h b/include/asm-x86_64/timex.h
index f18443f..b9e5320 100644
--- a/include/asm-x86_64/timex.h
+++ b/include/asm-x86_64/timex.h
@@ -33,7 +33,7 @@ static __always_inline cycles_t get_cycles_sync(void)
 	unsigned eax;
 	/* Don't do an additional sync on CPUs where we know
 	   RDTSC is already synchronous. */
-	alternative_io(ASM_NOP2, "cpuid", X86_FEATURE_SYNC_RDTSC,
+	alternative_io("cpuid", ASM_NOP2, X86_FEATURE_SYNC_RDTSC,
 			  "=a" (eax), "0" (1) : "ebx","ecx","edx","memory");
 	rdtscll(ret);
 	return ret;
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index f21ff2c..feb77cb 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -611,8 +611,14 @@ __SYSCALL(__NR_set_robust_list, sys_set_robust_list)
 __SYSCALL(__NR_get_robust_list, sys_get_robust_list)
 #define __NR_splice		275
 __SYSCALL(__NR_splice, sys_splice)
-
-#define __NR_syscall_max __NR_splice
+#define __NR_tee		276
+__SYSCALL(__NR_tee, sys_tee)
+#define __NR_sync_file_range	277
+__SYSCALL(__NR_sync_file_range, sys_sync_file_range)
+#define __NR_vmsplice		278
+__SYSCALL(__NR_vmsplice, sys_vmsplice)
+
+#define __NR_syscall_max __NR_vmsplice
 
 #ifndef __NO_STUBS