Linus 2.6.34

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  rtnetlink: make SR-IOV VF interface symmetric
  sctp: delete active ICMP proto unreachable timer when free transport
  tcp: fix MD5 (RFC2385) support

Documentation/filesystems/proc.txt

@@ -316,7 +316,7 @@ address           perms offset  dev   inode      pathname
 08049000-0804a000 rw-p 00001000 03:00 8312       /opt/test
 0804a000-0806b000 rw-p 00000000 00:00 0          [heap]
 a7cb1000-a7cb2000 ---p 00000000 00:00 0
-a7cb2000-a7eb2000 rw-p 00000000 00:00 0          [threadstack:001ff4b4]
+a7cb2000-a7eb2000 rw-p 00000000 00:00 0
 a7eb2000-a7eb3000 ---p 00000000 00:00 0
 a7eb3000-a7ed5000 rw-p 00000000 00:00 0
 a7ed5000-a8008000 r-xp 00000000 03:00 4222       /lib/libc.so.6
@@ -352,7 +352,6 @@ is not associated with a file:
  [stack]                  = the stack of the main process
  [vdso]                   = the "virtual dynamic shared object",
                             the kernel system call handler
- [threadstack:xxxxxxxx]   = the stack of the thread, xxxxxxxx is the stack size
 
  or if empty, the mapping is anonymous.
 

MAINTAINERS

@@ -5492,7 +5492,7 @@ S:	Maintained
 F:	drivers/mmc/host/tmio_mmc.*
 
 TMPFS (SHMEM FILESYSTEM)
-M:	Hugh Dickins <hugh.dickins@tiscali.co.uk>
+M:	Hugh Dickins <hughd@google.com>
 L:	linux-mm@kvack.org
 S:	Maintained
 F:	include/linux/shmem_fs.h

Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 34
-EXTRAVERSION = -rc7
+EXTRAVERSION =
 NAME = Sheep on Meth
 
 # *DOCUMENTATION*

arch/arm/include/asm/cacheflush.h

@@ -371,6 +371,10 @@ static inline void __flush_icache_all(void)
 #ifdef CONFIG_ARM_ERRATA_411920
 	extern void v6_icache_inval_all(void);
 	v6_icache_inval_all();
+#elif defined(CONFIG_SMP) && __LINUX_ARM_ARCH__ >= 7
+	asm("mcr	p15, 0, %0, c7, c1, 0	@ invalidate I-cache inner shareable\n"
+	    :
+	    : "r" (0));
 #else
 	asm("mcr	p15, 0, %0, c7, c5, 0	@ invalidate I-cache\n"
 	    :

arch/arm/include/asm/smp_twd.h

@@ -1,6 +1,23 @@
 #ifndef __ASMARM_SMP_TWD_H
 #define __ASMARM_SMP_TWD_H
 
+#define TWD_TIMER_LOAD			0x00
+#define TWD_TIMER_COUNTER		0x04
+#define TWD_TIMER_CONTROL		0x08
+#define TWD_TIMER_INTSTAT		0x0C
+
+#define TWD_WDOG_LOAD			0x20
+#define TWD_WDOG_COUNTER		0x24
+#define TWD_WDOG_CONTROL		0x28
+#define TWD_WDOG_INTSTAT		0x2C
+#define TWD_WDOG_RESETSTAT		0x30
+#define TWD_WDOG_DISABLE		0x34
+
+#define TWD_TIMER_CONTROL_ENABLE	(1 << 0)
+#define TWD_TIMER_CONTROL_ONESHOT	(0 << 1)
+#define TWD_TIMER_CONTROL_PERIODIC	(1 << 1)
+#define TWD_TIMER_CONTROL_IT_ENABLE	(1 << 2)
+
 struct clock_event_device;
 
 extern void __iomem *twd_base;

arch/arm/include/asm/tlbflush.h

@@ -46,6 +46,9 @@
 #define TLB_V7_UIS_FULL (1 << 20)
 #define TLB_V7_UIS_ASID (1 << 21)
 
+/* Inner Shareable BTB operation (ARMv7 MP extensions) */
+#define TLB_V7_IS_BTB	(1 << 22)
+
 #define TLB_L2CLEAN_FR	(1 << 29)		/* Feroceon */
 #define TLB_DCLEAN	(1 << 30)
 #define TLB_WB		(1 << 31)
@@ -183,7 +186,7 @@
 #endif
 
 #ifdef CONFIG_SMP
-#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \
 			 TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID)
 #else
 #define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
@@ -339,6 +342,12 @@ static inline void local_flush_tlb_all(void)
 		dsb();
 		isb();
 	}
+	if (tlb_flag(TLB_V7_IS_BTB)) {
+		/* flush the branch target cache */
+		asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+		dsb();
+		isb();
+	}
 }
 
 static inline void local_flush_tlb_mm(struct mm_struct *mm)
@@ -376,6 +385,12 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
 		asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
 		dsb();
 	}
+	if (tlb_flag(TLB_V7_IS_BTB)) {
+		/* flush the branch target cache */
+		asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+		dsb();
+		isb();
+	}
 }
 
 static inline void
@@ -416,6 +431,12 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
 		asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
 		dsb();
 	}
+	if (tlb_flag(TLB_V7_IS_BTB)) {
+		/* flush the branch target cache */
+		asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+		dsb();
+		isb();
+	}
 }
 
 static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
@@ -454,6 +475,12 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
 		dsb();
 		isb();
 	}
+	if (tlb_flag(TLB_V7_IS_BTB)) {
+		/* flush the branch target cache */
+		asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+		dsb();
+		isb();
+	}
 }
 
 /*

arch/arm/kernel/smp_twd.c

@@ -21,23 +21,6 @@
 #include <asm/smp_twd.h>
 #include <asm/hardware/gic.h>
 
-#define TWD_TIMER_LOAD 			0x00
-#define TWD_TIMER_COUNTER		0x04
-#define TWD_TIMER_CONTROL		0x08
-#define TWD_TIMER_INTSTAT		0x0C
-
-#define TWD_WDOG_LOAD			0x20
-#define TWD_WDOG_COUNTER		0x24
-#define TWD_WDOG_CONTROL		0x28
-#define TWD_WDOG_INTSTAT		0x2C
-#define TWD_WDOG_RESETSTAT		0x30
-#define TWD_WDOG_DISABLE		0x34
-
-#define TWD_TIMER_CONTROL_ENABLE	(1 << 0)
-#define TWD_TIMER_CONTROL_ONESHOT	(0 << 1)
-#define TWD_TIMER_CONTROL_PERIODIC	(1 << 1)
-#define TWD_TIMER_CONTROL_IT_ENABLE	(1 << 2)
-
 /* set up by the platform code */
 void __iomem *twd_base;
 

arch/arm/lib/clear_user.S

@@ -45,6 +45,7 @@ USER(		strnebt	r2, [r0])
 		mov	r0, #0
 		ldmfd	sp!, {r1, pc}
 ENDPROC(__clear_user)
+ENDPROC(__clear_user_std)
 
 		.pushsection .fixup,"ax"
 		.align	0

arch/arm/lib/copy_to_user.S

@@ -93,6 +93,7 @@ WEAK(__copy_to_user)
 #include "copy_template.S"
 
 ENDPROC(__copy_to_user)
+ENDPROC(__copy_to_user_std)
 
 	.pushsection .fixup,"ax"
 	.align 0

arch/arm/mach-davinci/da830.c

@@ -410,7 +410,7 @@ static struct clk_lookup da830_clks[] = {
 	CLK("davinci-mcasp.0",	NULL,		&mcasp0_clk),
 	CLK("davinci-mcasp.1",	NULL,		&mcasp1_clk),
 	CLK("davinci-mcasp.2",	NULL,		&mcasp2_clk),
-	CLK("musb_hdrc",	NULL,		&usb20_clk),
+	CLK(NULL,		"usb20",	&usb20_clk),
 	CLK(NULL,		"aemif",	&aemif_clk),
 	CLK(NULL,		"aintc",	&aintc_clk),
 	CLK(NULL,		"secu_mgr",	&secu_mgr_clk),

arch/arm/mm/cache-v6.S

@@ -211,6 +211,9 @@ v6_dma_inv_range:
 	mcrne	p15, 0, r1, c7, c15, 1		@ clean & invalidate unified line
 #endif
 1:
+#ifdef CONFIG_SMP
+	str	r0, [r0]			@ write for ownership
+#endif
 #ifdef HARVARD_CACHE
 	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D line
 #else
@@ -231,6 +234,9 @@ v6_dma_inv_range:
 v6_dma_clean_range:
 	bic	r0, r0, #D_CACHE_LINE_SIZE - 1
 1:
+#ifdef CONFIG_SMP
+	ldr	r2, [r0]			@ read for ownership
+#endif
 #ifdef HARVARD_CACHE
 	mcr	p15, 0, r0, c7, c10, 1		@ clean D line
 #else
@@ -251,6 +257,10 @@ v6_dma_clean_range:
 ENTRY(v6_dma_flush_range)
 	bic	r0, r0, #D_CACHE_LINE_SIZE - 1
 1:
+#ifdef CONFIG_SMP
+	ldr	r2, [r0]			@ read for ownership
+	str	r2, [r0]			@ write for ownership
+#endif
 #ifdef HARVARD_CACHE
 	mcr	p15, 0, r0, c7, c14, 1		@ clean & invalidate D line
 #else
@@ -273,7 +283,9 @@ ENTRY(v6_dma_map_area)
 	add	r1, r1, r0
 	teq	r2, #DMA_FROM_DEVICE
 	beq	v6_dma_inv_range
-	b	v6_dma_clean_range
+	teq	r2, #DMA_TO_DEVICE
+	beq	v6_dma_clean_range
+	b	v6_dma_flush_range
 ENDPROC(v6_dma_map_area)
 
 /*
@@ -283,9 +295,6 @@ ENDPROC(v6_dma_map_area)
  *	- dir	- DMA direction
  */
 ENTRY(v6_dma_unmap_area)
-	add	r1, r1, r0
-	teq	r2, #DMA_TO_DEVICE
-	bne	v6_dma_inv_range
 	mov	pc, lr
 ENDPROC(v6_dma_unmap_area)
 

arch/arm/mm/cache-v7.S

@@ -167,7 +167,11 @@ ENTRY(v7_coherent_user_range)
 	cmp	r0, r1
 	blo	1b
 	mov	r0, #0
+#ifdef CONFIG_SMP
+	mcr	p15, 0, r0, c7, c1, 6		@ invalidate BTB Inner Shareable
+#else
 	mcr	p15, 0, r0, c7, c5, 6		@ invalidate BTB
+#endif
 	dsb
 	isb
 	mov	pc, lr

arch/arm/mm/nommu.c

@@ -65,6 +65,15 @@ void flush_dcache_page(struct page *page)
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
+void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
+		       unsigned long uaddr, void *dst, const void *src,
+		       unsigned long len)
+{
+	memcpy(dst, src, len);
+	if (vma->vm_flags & VM_EXEC)
+		__cpuc_coherent_user_range(uaddr, uaddr + len);
+}
+
 void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset,
 				size_t size, unsigned int mtype)
 {
@@ -87,8 +96,8 @@ void __iomem *__arm_ioremap(unsigned long phys_addr, size_t size,
 }
 EXPORT_SYMBOL(__arm_ioremap);
 
-void __iomem *__arm_ioremap(unsigned long phys_addr, size_t size,
-			    unsigned int mtype, void *caller)
+void __iomem *__arm_ioremap_caller(unsigned long phys_addr, size_t size,
+				   unsigned int mtype, void *caller)
 {
 	return __arm_ioremap(phys_addr, size, mtype);
 }

arch/arm/mm/tlb-v7.S

@@ -50,7 +50,11 @@ ENTRY(v7wbi_flush_user_tlb_range)
 	cmp	r0, r1
 	blo	1b
 	mov	ip, #0
+#ifdef CONFIG_SMP
+	mcr	p15, 0, ip, c7, c1, 6		@ flush BTAC/BTB Inner Shareable
+#else
 	mcr	p15, 0, ip, c7, c5, 6		@ flush BTAC/BTB
+#endif
 	dsb
 	mov	pc, lr
 ENDPROC(v7wbi_flush_user_tlb_range)
@@ -79,7 +83,11 @@ ENTRY(v7wbi_flush_kern_tlb_range)
 	cmp	r0, r1
 	blo	1b
 	mov	r2, #0
+#ifdef CONFIG_SMP
+	mcr	p15, 0, r2, c7, c1, 6		@ flush BTAC/BTB Inner Shareable
+#else
 	mcr	p15, 0, r2, c7, c5, 6		@ flush BTAC/BTB
+#endif
 	dsb
 	isb
 	mov	pc, lr

arch/microblaze/include/asm/uaccess.h

@@ -182,6 +182,39 @@ extern long __user_bad(void);
  * Returns zero on success, or -EFAULT on error.
  * On error, the variable @x is set to zero.
  */
+#define get_user(x, ptr)						\
+	__get_user_check((x), (ptr), sizeof(*(ptr)))
+
+#define __get_user_check(x, ptr, size)					\
+({									\
+	unsigned long __gu_val = 0;					\
+	const typeof(*(ptr)) __user *__gu_addr = (ptr);			\
+	int __gu_err = 0;						\
+									\
+	if (access_ok(VERIFY_READ, __gu_addr, size)) {			\
+		switch (size) {						\
+		case 1:							\
+			__get_user_asm("lbu", __gu_addr, __gu_val,	\
+				       __gu_err);			\
+			break;						\
+		case 2:							\
+			__get_user_asm("lhu", __gu_addr, __gu_val,	\
+				       __gu_err);			\
+			break;						\
+		case 4:							\
+			__get_user_asm("lw", __gu_addr, __gu_val,	\
+				       __gu_err);			\
+			break;						\
+		default:						\
+			__gu_err = __user_bad();			\
+			break;						\
+		}							\
+	} else {							\
+		__gu_err = -EFAULT;					\
+	}								\
+	x = (typeof(*(ptr)))__gu_val;					\
+	__gu_err;							\
+})
 
 #define __get_user(x, ptr)						\
 ({									\
@@ -206,12 +239,6 @@ extern long __user_bad(void);
 })
 
 
-#define get_user(x, ptr)						\
-({									\
-	access_ok(VERIFY_READ, (ptr), sizeof(*(ptr)))			\
-		? __get_user((x), (ptr)) : -EFAULT;			\
-})
-
 #define __put_user_asm(insn, __gu_ptr, __gu_val, __gu_err)	\
 ({								\
 	__asm__ __volatile__ (					\
@@ -266,6 +293,42 @@ extern long __user_bad(void);
  *
  * Returns zero on success, or -EFAULT on error.
  */
+#define put_user(x, ptr)						\
+	__put_user_check((x), (ptr), sizeof(*(ptr)))
+
+#define __put_user_check(x, ptr, size)					\
+({									\
+	typeof(*(ptr)) __pu_val;					\
+	typeof(*(ptr)) __user *__pu_addr = (ptr);			\
+	int __pu_err = 0;						\
+									\
+	__pu_val = (x);							\
+	if (access_ok(VERIFY_WRITE, __pu_addr, size)) {			\
+		switch (size) {						\
+		case 1:							\
+			__put_user_asm("sb", __pu_addr, __pu_val,	\
+				       __pu_err);			\
+			break;						\
+		case 2:							\
+			__put_user_asm("sh", __pu_addr, __pu_val,	\
+				       __pu_err);			\
+			break;						\
+		case 4:							\
+			__put_user_asm("sw", __pu_addr, __pu_val,	\
+				       __pu_err);			\
+			break;						\
+		case 8:							\
+			__put_user_asm_8(__pu_addr, __pu_val, __pu_err);\
+			break;						\
+		default:						\
+			__pu_err = __user_bad();			\
+			break;						\
+		}							\
+	} else {							\
+		__pu_err = -EFAULT;					\
+	}								\
+	__pu_err;							\
+})
 
 #define __put_user(x, ptr)						\
 ({									\
@@ -290,18 +353,6 @@ extern long __user_bad(void);
 	__gu_err;							\
 })
 
-#ifndef CONFIG_MMU
-
-#define put_user(x, ptr)	__put_user((x), (ptr))
-
-#else /* CONFIG_MMU */
-
-#define put_user(x, ptr)						\
-({									\
-	access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr)))			\
-		? __put_user((x), (ptr)) : -EFAULT;			\
-})
-#endif /* CONFIG_MMU */
 
 /* copy_to_from_user */
 #define __copy_from_user(to, from, n)	\

arch/microblaze/kernel/cpu/cache.c

@@ -137,8 +137,9 @@ do {									\
 do {									\
 	int step = -line_length;					\
 	int align = ~(line_length - 1);					\
+	int count;							\
 	end = ((end & align) == end) ? end - line_length : end & align;	\
-	int count = end - start;					\
+	count = end - start;						\
 	WARN_ON(count < 0);						\
 									\
 	__asm__ __volatile__ (" 1:	" #op "	%0, %1;			\

arch/microblaze/kernel/entry-nommu.S

@@ -476,6 +476,8 @@ ENTRY(ret_from_fork)
 	nop
 
 work_pending:
+	enable_irq
+
 	andi	r11, r19, _TIF_NEED_RESCHED
 	beqi	r11, 1f
 	bralid	r15, schedule

arch/microblaze/kernel/microblaze_ksyms.c

@@ -52,3 +52,14 @@ EXPORT_SYMBOL_GPL(_ebss);
 extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
+
+/*
+ * Assembly functions that may be used (directly or indirectly) by modules
+ */
+EXPORT_SYMBOL(__copy_tofrom_user);
+EXPORT_SYMBOL(__strncpy_user);
+
+#ifdef CONFIG_OPT_LIB_ASM
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memmove);
+#endif

arch/microblaze/kernel/module.c

@@ -16,6 +16,7 @@
 #include <linux/string.h>
 
 #include <asm/pgtable.h>
+#include <asm/cacheflush.h>
 
 void *module_alloc(unsigned long size)
 {
@@ -151,6 +152,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
 int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
 		struct module *module)
 {
+	flush_dcache();
 	return 0;
 }
 

arch/microblaze/mm/init.c

@@ -47,6 +47,7 @@ unsigned long memory_start;
 EXPORT_SYMBOL(memory_start);
 unsigned long memory_end; /* due to mm/nommu.c */
 unsigned long memory_size;
+EXPORT_SYMBOL(memory_size);
 
 /*
  * paging_init() sets up the page tables - in fact we've already done this.

arch/microblaze/mm/pgtable.c

@@ -42,6 +42,7 @@
 
 unsigned long ioremap_base;
 unsigned long ioremap_bot;
+EXPORT_SYMBOL(ioremap_bot);
 
 /* The maximum lowmem defaults to 768Mb, but this can be configured to
  * another value.

arch/microblaze/pci/pci-common.c

@@ -1507,7 +1507,7 @@ void pcibios_finish_adding_to_bus(struct pci_bus *bus)
 	pci_bus_add_devices(bus);
 
 	/* Fixup EEH */
-	eeh_add_device_tree_late(bus);
+	/* eeh_add_device_tree_late(bus); */
 }
 EXPORT_SYMBOL_GPL(pcibios_finish_adding_to_bus);
 

arch/mips/include/asm/mipsregs.h

@@ -134,6 +134,12 @@
 #define FPU_CSR_COND6   0x40000000      /* $fcc6 */
 #define FPU_CSR_COND7   0x80000000      /* $fcc7 */
 
+/*
+ * Bits 18 - 20 of the FPU Status Register will be read as 0,
+ * and should be written as zero.
+ */
+#define FPU_CSR_RSVD	0x001c0000
+
 /*
  * X the exception cause indicator
  * E the exception enable
@@ -161,7 +167,8 @@
 #define FPU_CSR_UDF_S   0x00000008
 #define FPU_CSR_INE_S   0x00000004
 
-/* rounding mode */
+/* Bits 0 and 1 of FPU Status Register specify the rounding mode */
+#define FPU_CSR_RM	0x00000003
 #define FPU_CSR_RN      0x0     /* nearest */
 #define FPU_CSR_RZ      0x1     /* towards zero */
 #define FPU_CSR_RU      0x2     /* towards +Infinity */

arch/mips/kernel/scall64-n32.S

@@ -385,7 +385,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_fchmodat
 	PTR	sys_faccessat
 	PTR	compat_sys_pselect6
-	PTR	sys_ppoll			/* 6265 */
+	PTR	compat_sys_ppoll		/* 6265 */
 	PTR	sys_unshare
 	PTR	sys_splice
 	PTR	sys_sync_file_range

arch/mips/math-emu/cp1emu.c

@@ -78,6 +78,9 @@ DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
 #define FPCREG_RID	0	/* $0  = revision id */
 #define FPCREG_CSR	31	/* $31 = csr */
 
+/* Determine rounding mode from the RM bits of the FCSR */
+#define modeindex(v) ((v) & FPU_CSR_RM)
+
 /* Convert Mips rounding mode (0..3) to IEEE library modes. */
 static const unsigned char ieee_rm[4] = {
 	[FPU_CSR_RN] = IEEE754_RN,
@@ -384,10 +387,14 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
 					(void *) (xcp->cp0_epc),
 					MIPSInst_RT(ir), value);
 #endif
-				value &= (FPU_CSR_FLUSH | FPU_CSR_ALL_E | FPU_CSR_ALL_S | 0x03);
-				ctx->fcr31 &= ~(FPU_CSR_FLUSH | FPU_CSR_ALL_E | FPU_CSR_ALL_S | 0x03);
-				/* convert to ieee library modes */
-				ctx->fcr31 |= (value & ~0x3) | ieee_rm[value & 0x3];
+
+				/*
+				 * Don't write reserved bits,
+				 * and convert to ieee library modes
+				 */
+				ctx->fcr31 = (value &
+						~(FPU_CSR_RSVD | FPU_CSR_RM)) |
+						ieee_rm[modeindex(value)];
 			}
 			if ((ctx->fcr31 >> 5) & ctx->fcr31 & FPU_CSR_ALL_E) {
 				return SIGFPE;

arch/mips/oprofile/op_model_loongson2.c

@@ -122,7 +122,7 @@ static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id)
 	 */
 
 	/* Check whether the irq belongs to me */
-	enabled = read_c0_perfcnt() & LOONGSON2_PERFCNT_INT_EN;
+	enabled = read_c0_perfctrl() & LOONGSON2_PERFCNT_INT_EN;
 	if (!enabled)
 		return IRQ_NONE;
 	enabled = reg.cnt1_enabled | reg.cnt2_enabled;

arch/powerpc/include/asm/hw_irq.h

@@ -130,43 +130,5 @@ static inline int irqs_disabled_flags(unsigned long flags)
  */
 struct irq_chip;
 
-#ifdef CONFIG_PERF_EVENTS
-
-#ifdef CONFIG_PPC64
-static inline unsigned long test_perf_event_pending(void)
-{
-	unsigned long x;
-
-	asm volatile("lbz %0,%1(13)"
-		: "=r" (x)
-		: "i" (offsetof(struct paca_struct, perf_event_pending)));
-	return x;
-}
-
-static inline void set_perf_event_pending(void)
-{
-	asm volatile("stb %0,%1(13)" : :
-		"r" (1),
-		"i" (offsetof(struct paca_struct, perf_event_pending)));
-}
-
-static inline void clear_perf_event_pending(void)
-{
-	asm volatile("stb %0,%1(13)" : :
-		"r" (0),
-		"i" (offsetof(struct paca_struct, perf_event_pending)));
-}
-#endif /* CONFIG_PPC64 */
-
-#else  /* CONFIG_PERF_EVENTS */
-
-static inline unsigned long test_perf_event_pending(void)
-{
-	return 0;
-}
-
-static inline void clear_perf_event_pending(void) {}
-#endif /* CONFIG_PERF_EVENTS */
-
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_HW_IRQ_H */

arch/powerpc/kernel/asm-offsets.c

@@ -133,7 +133,6 @@ int main(void)
 	DEFINE(PACAKMSR, offsetof(struct paca_struct, kernel_msr));
 	DEFINE(PACASOFTIRQEN, offsetof(struct paca_struct, soft_enabled));
 	DEFINE(PACAHARDIRQEN, offsetof(struct paca_struct, hard_enabled));
-	DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_event_pending));
 	DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
 #ifdef CONFIG_PPC_MM_SLICES
 	DEFINE(PACALOWSLICESPSIZE, offsetof(struct paca_struct,

arch/powerpc/kernel/dma-swiotlb.c

@@ -1,7 +1,8 @@
 /*
  * Contains routines needed to support swiotlb for ppc.
  *
- * Copyright (C) 2009 Becky Bruce, Freescale Semiconductor
+ * Copyright (C) 2009-2010 Freescale Semiconductor, Inc.
+ * Author: Becky Bruce
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -70,7 +71,7 @@ static int ppc_swiotlb_bus_notify(struct notifier_block *nb,
 	sd->max_direct_dma_addr = 0;
 
 	/* May need to bounce if the device can't address all of DRAM */
-	if (dma_get_mask(dev) < lmb_end_of_DRAM())
+	if ((dma_get_mask(dev) + 1) < lmb_end_of_DRAM())
 		set_dma_ops(dev, &swiotlb_dma_ops);
 
 	return NOTIFY_DONE;

arch/powerpc/kernel/entry_64.S

@@ -556,15 +556,6 @@ ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
 2:
 	TRACE_AND_RESTORE_IRQ(r5);
 
-#ifdef CONFIG_PERF_EVENTS
-	/* check paca->perf_event_pending if we're enabling ints */
-	lbz	r3,PACAPERFPEND(r13)
-	and.	r3,r3,r5
-	beq	27f
-	bl	.perf_event_do_pending
-27:
-#endif /* CONFIG_PERF_EVENTS */
-
 	/* extract EE bit and use it to restore paca->hard_enabled */
 	ld	r3,_MSR(r1)
 	rldicl	r4,r3,49,63		/* r0 = (r3 >> 15) & 1 */

arch/powerpc/kernel/irq.c

@@ -53,7 +53,6 @@
 #include <linux/bootmem.h>
 #include <linux/pci.h>
 #include <linux/debugfs.h>
-#include <linux/perf_event.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -145,11 +144,6 @@ notrace void raw_local_irq_restore(unsigned long en)
 	}
 #endif /* CONFIG_PPC_STD_MMU_64 */
 
-	if (test_perf_event_pending()) {
-		clear_perf_event_pending();
-		perf_event_do_pending();
-	}
-
 	/*
 	 * if (get_paca()->hard_enabled) return;
 	 * But again we need to take care that gcc gets hard_enabled directly

arch/powerpc/kernel/time.c

@@ -532,25 +532,60 @@ void __init iSeries_time_init_early(void)
 }
 #endif /* CONFIG_PPC_ISERIES */
 
-#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_PPC32)
-DEFINE_PER_CPU(u8, perf_event_pending);
+#ifdef CONFIG_PERF_EVENTS
 
-void set_perf_event_pending(void)
+/*
+ * 64-bit uses a byte in the PACA, 32-bit uses a per-cpu variable...
+ */
+#ifdef CONFIG_PPC64
+static inline unsigned long test_perf_event_pending(void)
 {
-	get_cpu_var(perf_event_pending) = 1;
-	set_dec(1);
-	put_cpu_var(perf_event_pending);
+	unsigned long x;
+
+	asm volatile("lbz %0,%1(13)"
+		: "=r" (x)
+		: "i" (offsetof(struct paca_struct, perf_event_pending)));
+	return x;
 }
 
+static inline void set_perf_event_pending_flag(void)
+{
+	asm volatile("stb %0,%1(13)" : :
+		"r" (1),
+		"i" (offsetof(struct paca_struct, perf_event_pending)));
+}
+
+static inline void clear_perf_event_pending(void)
+{
+	asm volatile("stb %0,%1(13)" : :
+		"r" (0),
+		"i" (offsetof(struct paca_struct, perf_event_pending)));
+}
+
+#else /* 32-bit */
+
+DEFINE_PER_CPU(u8, perf_event_pending);
+
+#define set_perf_event_pending_flag()	__get_cpu_var(perf_event_pending) = 1
 #define test_perf_event_pending()	__get_cpu_var(perf_event_pending)
 #define clear_perf_event_pending()	__get_cpu_var(perf_event_pending) = 0
 
-#else  /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */
+#endif /* 32 vs 64 bit */
+
+void set_perf_event_pending(void)
+{
+	preempt_disable();
+	set_perf_event_pending_flag();
+	set_dec(1);
+	preempt_enable();
+}
+
+#else  /* CONFIG_PERF_EVENTS */
 
 #define test_perf_event_pending()	0
 #define clear_perf_event_pending()
 
-#endif /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */
+#endif /* CONFIG_PERF_EVENTS */
 
 /*
  * For iSeries shared processors, we have to let the hypervisor
@@ -582,10 +617,6 @@ void timer_interrupt(struct pt_regs * regs)
 	set_dec(DECREMENTER_MAX);
 
 #ifdef CONFIG_PPC32
-	if (test_perf_event_pending()) {
-		clear_perf_event_pending();
-		perf_event_do_pending();
-	}
 	if (atomic_read(&ppc_n_lost_interrupts) != 0)
 		do_IRQ(regs);
 #endif
@@ -604,6 +635,11 @@ void timer_interrupt(struct pt_regs * regs)
 
 	calculate_steal_time();
 
+	if (test_perf_event_pending()) {
+		clear_perf_event_pending();
+		perf_event_do_pending();
+	}
+
 #ifdef CONFIG_PPC_ISERIES
 	if (firmware_has_feature(FW_FEATURE_ISERIES))
 		get_lppaca()->int_dword.fields.decr_int = 0;

arch/powerpc/kvm/44x_tlb.c

@@ -440,7 +440,7 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
 	unsigned int gtlb_index;
 
 	gtlb_index = kvmppc_get_gpr(vcpu, ra);
-	if (gtlb_index > KVM44x_GUEST_TLB_SIZE) {
+	if (gtlb_index >= KVM44x_GUEST_TLB_SIZE) {
 		printk("%s: index %d\n", __func__, gtlb_index);
 		kvmppc_dump_vcpu(vcpu);
 		return EMULATE_FAIL;

arch/s390/kernel/head31.S

@@ -82,7 +82,7 @@ startup_continue:
 _ehead:
 
 #ifdef CONFIG_SHARED_KERNEL
-	.org	0x100000
+	.org	0x100000 - 0x11000	# head.o ends at 0x11000
 #endif
 
 #

arch/s390/kernel/head64.S

@@ -80,7 +80,7 @@ startup_continue:
 _ehead:
 
 #ifdef CONFIG_SHARED_KERNEL
-	.org	0x100000
+	.org	0x100000 - 0x11000	# head.o ends at 0x11000
 #endif
 
 #

arch/s390/kernel/ptrace.c

@@ -640,7 +640,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	long ret;
+	long ret = 0;
 
 	/* Do the secure computing check first. */
 	secure_computing(regs->gprs[2]);
@@ -649,7 +649,6 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	 * The sysc_tracesys code in entry.S stored the system
 	 * call number to gprs[2].
 	 */
-	ret = regs->gprs[2];
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    (tracehook_report_syscall_entry(regs) ||
 	     regs->gprs[2] >= NR_syscalls)) {
@@ -671,7 +670,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 				    regs->gprs[2], regs->orig_gpr2,
 				    regs->gprs[3], regs->gprs[4],
 				    regs->gprs[5]);
-	return ret;
+	return ret ?: regs->gprs[2];
 }
 
 asmlinkage void do_syscall_trace_exit(struct pt_regs *regs)

arch/x86/include/asm/k8.h

@@ -16,11 +16,16 @@ extern int k8_numa_init(unsigned long start_pfn, unsigned long end_pfn);
 extern int k8_scan_nodes(void);
 
 #ifdef CONFIG_K8_NB
+extern int num_k8_northbridges;
+
 static inline struct pci_dev *node_to_k8_nb_misc(int node)
 {
 	return (node < num_k8_northbridges) ? k8_northbridges[node] : NULL;
 }
+
 #else
+#define num_k8_northbridges 0
+
 static inline struct pci_dev *node_to_k8_nb_misc(int node)
 {
 	return NULL;

arch/x86/kernel/cpu/intel_cacheinfo.c

@@ -340,6 +340,10 @@ amd_check_l3_disable(int index, struct _cpuid4_info_regs *this_leaf)
 	     (boot_cpu_data.x86_mask  < 0x1)))
 		return;
 
+	/* not in virtualized environments */
+	if (num_k8_northbridges == 0)
+		return;
+
 	this_leaf->can_disable = true;
 	this_leaf->l3_indices  = amd_calc_l3_indices();
 }

arch/x86/kernel/kprobes.c

@@ -534,20 +534,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb;
 
 	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
-	if (*addr != BREAKPOINT_INSTRUCTION) {
-		/*
-		 * The breakpoint instruction was removed right
-		 * after we hit it.  Another cpu has removed
-		 * either a probepoint or a debugger breakpoint
-		 * at this address.  In either case, no further
-		 * handling of this interrupt is appropriate.
-		 * Back up over the (now missing) int3 and run
-		 * the original instruction.
-		 */
-		regs->ip = (unsigned long)addr;
-		return 1;
-	}
-
 	/*
 	 * We don't want to be preempted for the entire
 	 * duration of kprobe processing. We conditionally
@@ -579,6 +565,19 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 				setup_singlestep(p, regs, kcb, 0);
 			return 1;
 		}
+	} else if (*addr != BREAKPOINT_INSTRUCTION) {
+		/*
+		 * The breakpoint instruction was removed right
+		 * after we hit it.  Another cpu has removed
+		 * either a probepoint or a debugger breakpoint
+		 * at this address.  In either case, no further
+		 * handling of this interrupt is appropriate.
+		 * Back up over the (now missing) int3 and run
+		 * the original instruction.
+		 */
+		regs->ip = (unsigned long)addr;
+		preempt_enable_no_resched();
+		return 1;
 	} else if (kprobe_running()) {
 		p = __get_cpu_var(current_kprobe);
 		if (p->break_handler && p->break_handler(p, regs)) {

arch/x86/kernel/process.c

@@ -546,11 +546,13 @@ static int __cpuinit check_c1e_idle(const struct cpuinfo_x86 *c)
 		 * check OSVW bit for CPUs that are not affected
 		 * by erratum #400
 		 */
-		rdmsrl(MSR_AMD64_OSVW_ID_LENGTH, val);
-		if (val >= 2) {
-			rdmsrl(MSR_AMD64_OSVW_STATUS, val);
-			if (!(val & BIT(1)))
-				goto no_c1e_idle;
+		if (cpu_has(c, X86_FEATURE_OSVW)) {
+			rdmsrl(MSR_AMD64_OSVW_ID_LENGTH, val);
+			if (val >= 2) {
+				rdmsrl(MSR_AMD64_OSVW_STATUS, val);
+				if (!(val & BIT(1)))
+					goto no_c1e_idle;
+			}
 		}
 		return 1;
 	}

arch/x86/kvm/svm.c

@@ -2067,7 +2067,7 @@ static int cpuid_interception(struct vcpu_svm *svm)
 static int iret_interception(struct vcpu_svm *svm)
 {
 	++svm->vcpu.stat.nmi_window_exits;
-	svm->vmcb->control.intercept &= ~(1UL << INTERCEPT_IRET);
+	svm->vmcb->control.intercept &= ~(1ULL << INTERCEPT_IRET);
 	svm->vcpu.arch.hflags |= HF_IRET_MASK;
 	return 1;
 }
@@ -2479,7 +2479,7 @@ static void svm_inject_nmi(struct kvm_vcpu *vcpu)
 
 	svm->vmcb->control.event_inj = SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_NMI;
 	vcpu->arch.hflags |= HF_NMI_MASK;
-	svm->vmcb->control.intercept |= (1UL << INTERCEPT_IRET);
+	svm->vmcb->control.intercept |= (1ULL << INTERCEPT_IRET);
 	++vcpu->stat.nmi_injections;
 }
 
@@ -2539,10 +2539,10 @@ static void svm_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked)
 
 	if (masked) {
 		svm->vcpu.arch.hflags |= HF_NMI_MASK;
-		svm->vmcb->control.intercept |= (1UL << INTERCEPT_IRET);
+		svm->vmcb->control.intercept |= (1ULL << INTERCEPT_IRET);
 	} else {
 		svm->vcpu.arch.hflags &= ~HF_NMI_MASK;
-		svm->vmcb->control.intercept &= ~(1UL << INTERCEPT_IRET);
+		svm->vmcb->control.intercept &= ~(1ULL << INTERCEPT_IRET);
 	}
 }
 

arch/x86/kvm/vmx.c

@@ -2703,8 +2703,7 @@ static int vmx_nmi_allowed(struct kvm_vcpu *vcpu)
 		return 0;
 
 	return	!(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) &
-			(GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS |
-				GUEST_INTR_STATE_NMI));
+			(GUEST_INTR_STATE_MOV_SS | GUEST_INTR_STATE_NMI));
 }
 
 static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)

arch/x86/kvm/x86.c

@@ -1712,6 +1712,7 @@ static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
 	if (copy_from_user(cpuid_entries, entries,
 			   cpuid->nent * sizeof(struct kvm_cpuid_entry)))
 		goto out_free;
+	vcpu_load(vcpu);
 	for (i = 0; i < cpuid->nent; i++) {
 		vcpu->arch.cpuid_entries[i].function = cpuid_entries[i].function;
 		vcpu->arch.cpuid_entries[i].eax = cpuid_entries[i].eax;
@@ -1729,6 +1730,7 @@ static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
 	r = 0;
 	kvm_apic_set_version(vcpu);
 	kvm_x86_ops->cpuid_update(vcpu);
+	vcpu_put(vcpu);
 
 out_free:
 	vfree(cpuid_entries);
@@ -1749,9 +1751,11 @@ static int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
 	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
 			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
 		goto out;
+	vcpu_load(vcpu);
 	vcpu->arch.cpuid_nent = cpuid->nent;
 	kvm_apic_set_version(vcpu);
 	kvm_x86_ops->cpuid_update(vcpu);
+	vcpu_put(vcpu);
 	return 0;
 
 out:

arch/x86/mm/srat_64.c

@@ -461,7 +461,8 @@ void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
 		 * node, it must now point to the fake node ID.
 		 */
 		for (j = 0; j < MAX_LOCAL_APIC; j++)
-			if (apicid_to_node[j] == nid)
+			if (apicid_to_node[j] == nid &&
+			    fake_apicid_to_node[j] == NUMA_NO_NODE)
 				fake_apicid_to_node[j] = i;
 	}
 	for (i = 0; i < num_nodes; i++)

arch/x86/pci/mrst.c

@@ -247,6 +247,10 @@ static void __devinit pci_fixed_bar_fixup(struct pci_dev *dev)
 	u32 size;
 	int i;
 
+	/* Must have extended configuration space */
+	if (dev->cfg_size < PCIE_CAP_OFFSET + 4)
+		return;
+
 	/* Fixup the BAR sizes for fixed BAR devices and make them unmoveable */
 	offset = fixed_bar_cap(dev->bus, dev->devfn);
 	if (!offset || PCI_DEVFN(2, 0) == dev->devfn ||

drivers/acpi/sleep.c

@@ -475,101 +475,13 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 	},
 	{
 	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad X201",
+	.ident = "Lenovo ThinkPad X201[s]",
 	.matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
 		},
 	},
 	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad X201",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad T410",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T410"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad T510",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T510"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad W510",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W510"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad X201",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad X201",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad T410",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T410"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad T510",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T510"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad W510",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W510"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad X201",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
-		},
-	},
-	{
-	.callback = init_set_sci_en_on_resume,
-	.ident = "Lenovo ThinkPad X201",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"),
-		},
-	},
-	{
 	.callback = init_old_suspend_ordering,
 	.ident = "Panasonic CF51-2L",
 	.matches = {

drivers/char/tty_io.c

@@ -1875,6 +1875,7 @@ got_driver:
 		 */
 		if (filp->f_op == &hung_up_tty_fops)
 			filp->f_op = &tty_fops;
+		unlock_kernel();
 		goto retry_open;
 	}
 	unlock_kernel();

drivers/gpio/it8761e_gpio.c

@@ -80,8 +80,8 @@ static int it8761e_gpio_get(struct gpio_chip *gc, unsigned gpio_num)
 	u16 reg;
 	u8 bit;
 
-	bit = gpio_num % 7;
-	reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+	bit = gpio_num % 8;
+	reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
 
 	return !!(inb(reg) & (1 << bit));
 }
@@ -91,8 +91,8 @@ static int it8761e_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num)
 	u8 curr_dirs;
 	u8 io_reg, bit;
 
-	bit = gpio_num % 7;
-	io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+	bit = gpio_num % 8;
+	io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
 
 	spin_lock(&sio_lock);
 
@@ -116,8 +116,8 @@ static void it8761e_gpio_set(struct gpio_chip *gc,
 	u8 curr_vals, bit;
 	u16 reg;
 
-	bit = gpio_num % 7;
-	reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+	bit = gpio_num % 8;
+	reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
 
 	spin_lock(&sio_lock);
 
@@ -135,8 +135,8 @@ static int it8761e_gpio_direction_out(struct gpio_chip *gc,
 {
 	u8 curr_dirs, io_reg, bit;
 
-	bit = gpio_num % 7;
-	io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+	bit = gpio_num % 8;
+	io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
 
 	it8761e_gpio_set(gc, gpio_num, val);
 
@@ -200,7 +200,7 @@ static int __init it8761e_gpio_init(void)
 		return -EBUSY;
 
 	it8761e_gpio_chip.base = -1;
-	it8761e_gpio_chip.ngpio = 14;
+	it8761e_gpio_chip.ngpio = 16;
 
 	err = gpiochip_add(&it8761e_gpio_chip);
 	if (err < 0)

drivers/gpu/drm/i915/i915_irq.c

@@ -456,11 +456,15 @@ i915_error_object_create(struct drm_device *dev,
 
 	for (page = 0; page < page_count; page++) {
 		void *s, *d = kmalloc(PAGE_SIZE, GFP_ATOMIC);
+		unsigned long flags;
+
 		if (d == NULL)
 			goto unwind;
-		s = kmap_atomic(src_priv->pages[page], KM_USER0);
+		local_irq_save(flags);
+		s = kmap_atomic(src_priv->pages[page], KM_IRQ0);
 		memcpy(d, s, PAGE_SIZE);
-		kunmap_atomic(s, KM_USER0);
+		kunmap_atomic(s, KM_IRQ0);
+		local_irq_restore(flags);
 		dst->pages[page] = d;
 	}
 	dst->page_count = page_count;

drivers/gpu/drm/radeon/radeon_state.c

@@ -424,7 +424,7 @@ static __inline__ int radeon_check_and_fixup_packet3(drm_radeon_private_t *
 		if ((*cmd & RADEON_GMC_SRC_PITCH_OFFSET_CNTL) &&
 		    (*cmd & RADEON_GMC_DST_PITCH_OFFSET_CNTL)) {
 			u32 *cmd3 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 3);
-			offset = *cmd << 10;
+			offset = *cmd3 << 10;
 			if (radeon_check_and_fixup_offset
 			    (dev_priv, file_priv, &offset)) {
 				DRM_ERROR("Invalid second packet offset\n");
@@ -2895,9 +2895,12 @@ static int radeon_cp_cmdbuf(struct drm_device *dev, void *data,
 			return rv;
 		rv = drm_buffer_copy_from_user(cmdbuf->buffer, buffer,
 						cmdbuf->bufsz);
-		if (rv)
+		if (rv) {
+			drm_buffer_free(cmdbuf->buffer);
 			return rv;
-	}
+		}
+	} else
+		goto done;
 
 	orig_nbox = cmdbuf->nbox;
 
@@ -2905,8 +2908,7 @@ static int radeon_cp_cmdbuf(struct drm_device *dev, void *data,
 		int temp;
 		temp = r300_do_cp_cmdbuf(dev, file_priv, cmdbuf);
 
-		if (cmdbuf->bufsz != 0)
-			drm_buffer_free(cmdbuf->buffer);
+		drm_buffer_free(cmdbuf->buffer);
 
 		return temp;
 	}
@@ -3012,16 +3014,15 @@ static int radeon_cp_cmdbuf(struct drm_device *dev, void *data,
 		}
 	}
 
-	if (cmdbuf->bufsz != 0)
-		drm_buffer_free(cmdbuf->buffer);
+	drm_buffer_free(cmdbuf->buffer);
 
+      done:
 	DRM_DEBUG("DONE\n");
 	COMMIT_RING();
 	return 0;
 
       err:
-	if (cmdbuf->bufsz != 0)
-		drm_buffer_free(cmdbuf->buffer);
+	drm_buffer_free(cmdbuf->buffer);
 	return -EINVAL;
 }
 

drivers/hid/hid-cherry.c

@@ -59,6 +59,7 @@ static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 
 static const struct hid_device_id ch_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ch_devices);

drivers/hid/hid-core.c

@@ -1043,13 +1043,8 @@ void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
 
 	if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
 		hid->hiddev_report_event(hid, report);
-	if (hid->claimed & HID_CLAIMED_HIDRAW) {
-		/* numbered reports need to be passed with the report num */
-		if (report_enum->numbered)
-			hidraw_report_event(hid, data - 1, size + 1);
-		else
-			hidraw_report_event(hid, data, size);
-	}
+	if (hid->claimed & HID_CLAIMED_HIDRAW)
+		hidraw_report_event(hid, data, size);
 
 	for (a = 0; a < report->maxfield; a++)
 		hid_input_field(hid, report->field[a], cdata, interrupt);
@@ -1296,6 +1291,7 @@ static const struct hid_device_id hid_blacklist[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },

drivers/hid/hid-ids.h

@@ -131,6 +131,7 @@
 
 #define USB_VENDOR_ID_CHERRY		0x046a
 #define USB_DEVICE_ID_CHERRY_CYMOTION	0x0023
+#define USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR	0x0027
 
 #define USB_VENDOR_ID_CHIC		0x05fe
 #define USB_DEVICE_ID_CHIC_GAMEPAD	0x0014

drivers/hid/hid-ntrig.c

@@ -1,8 +1,8 @@
 /*
  *  HID driver for N-Trig touchscreens
  *
- *  Copyright (c) 2008 Rafi Rubin
- *  Copyright (c) 2009 Stephane Chatty
+ *  Copyright (c) 2008-2010 Rafi Rubin
+ *  Copyright (c) 2009-2010 Stephane Chatty
  *
  */
 
@@ -15,6 +15,8 @@
 
 #include <linux/device.h>
 #include <linux/hid.h>
+#include <linux/usb.h>
+#include "usbhid/usbhid.h"
 #include <linux/module.h>
 #include <linux/slab.h>
 
@@ -22,17 +24,16 @@
 
 #define NTRIG_DUPLICATE_USAGES	0x001
 
-#define nt_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
-					EV_KEY, (c))
-
 struct ntrig_data {
 	/* Incoming raw values for a single contact */
 	__u16 x, y, w, h;
 	__u16 id;
-	__u8 confidence;
+
+	bool tipswitch;
+	bool confidence;
+	bool first_contact_touch;
 
 	bool reading_mt;
-	__u8 first_contact_confidence;
 
 	__u8 mt_footer[4];
 	__u8 mt_foot_count;
@@ -139,9 +140,10 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 		case 0xff000001:
 			/* Tag indicating the start of a multitouch group */
 			nd->reading_mt = 1;
-			nd->first_contact_confidence = 0;
+			nd->first_contact_touch = 0;
 			break;
 		case HID_DG_TIPSWITCH:
+			nd->tipswitch = value;
 			/* Prevent emission of touch until validated */
 			return 1;
 		case HID_DG_CONFIDENCE:
@@ -169,8 +171,14 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 			 * to emit a normal (X, Y) position
 			 */
 			if (!nd->reading_mt) {
+				/*
+				 * TipSwitch indicates the presence of a
+				 * finger in single touch mode.
+				 */
+				input_report_key(input, BTN_TOUCH,
+						 nd->tipswitch);
 				input_report_key(input, BTN_TOOL_DOUBLETAP,
-						 (nd->confidence != 0));
+						 nd->tipswitch);
 				input_event(input, EV_ABS, ABS_X, nd->x);
 				input_event(input, EV_ABS, ABS_Y, nd->y);
 			}
@@ -209,7 +217,13 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 
 			/* emit a normal (X, Y) for the first point only */
 			if (nd->id == 0) {
-				nd->first_contact_confidence = nd->confidence;
+				/*
+				 * TipSwitch is superfluous in multitouch
+				 * mode.  The footer events tell us
+				 * if there is a finger on the screen or
+				 * not.
+				 */
+				nd->first_contact_touch = nd->confidence;
 				input_event(input, EV_ABS, ABS_X, nd->x);
 				input_event(input, EV_ABS, ABS_Y, nd->y);
 			}
@@ -239,30 +253,11 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 
 			nd->reading_mt = 0;
 
-			if (nd->first_contact_confidence) {
-				switch (value) {
-				case 0:	/* for single touch devices */
-				case 1:
-					input_report_key(input,
-							BTN_TOOL_DOUBLETAP, 1);
-					break;
-				case 2:
-					input_report_key(input,
-							BTN_TOOL_TRIPLETAP, 1);
-					break;
-				case 3:
-				default:
-					input_report_key(input,
-							BTN_TOOL_QUADTAP, 1);
-				}
+			if (nd->first_contact_touch) {
+				input_report_key(input, BTN_TOOL_DOUBLETAP, 1);
 				input_report_key(input, BTN_TOUCH, 1);
 			} else {
-				input_report_key(input,
-						BTN_TOOL_DOUBLETAP, 0);
-				input_report_key(input,
-						BTN_TOOL_TRIPLETAP, 0);
-				input_report_key(input,
-						BTN_TOOL_QUADTAP, 0);
+				input_report_key(input, BTN_TOOL_DOUBLETAP, 0);
 				input_report_key(input, BTN_TOUCH, 0);
 			}
 			break;
@@ -286,6 +281,7 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	struct ntrig_data *nd;
 	struct hid_input *hidinput;
 	struct input_dev *input;
+	struct hid_report *report;
 
 	if (id->driver_data)
 		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
@@ -327,13 +323,7 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 			__clear_bit(BTN_TOOL_PEN, input->keybit);
 			__clear_bit(BTN_TOOL_FINGER, input->keybit);
 			__clear_bit(BTN_0, input->keybit);
-			/*
-			 * A little something special to enable
-			 * two and three finger taps.
-			 */
 			__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
-			__set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
-			__set_bit(BTN_TOOL_QUADTAP, input->keybit);
 			/*
 			 * The physical touchscreen (single touch)
 			 * input has a value for physical, whereas
@@ -349,6 +339,12 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		}
 	}
 
+	/* This is needed for devices with more recent firmware versions */
+	report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0x0a];
+	if (report)
+		usbhid_submit_report(hdev, report, USB_DIR_OUT);
+
+
 	return 0;
 err_free:
 	kfree(nd);

drivers/hid/hid-sony.c

@@ -76,7 +76,7 @@ static int sony_set_operational_usb(struct hid_device *hdev)
 
 static int sony_set_operational_bt(struct hid_device *hdev)
 {
-	unsigned char buf[] = { 0x53, 0xf4,  0x42, 0x03, 0x00, 0x00 };
+	unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
 	return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
 }
 

drivers/hid/hid-wacom.c

@@ -277,7 +277,6 @@ static int __init wacom_init(void)
 	ret = hid_register_driver(&wacom_driver);
 	if (ret)
 		printk(KERN_ERR "can't register wacom driver\n");
-	printk(KERN_ERR "wacom driver registered\n");
 	return ret;
 }
 

drivers/hid/usbhid/hid-core.c

@@ -999,13 +999,6 @@ static int usbhid_start(struct hid_device *hid)
 		}
 	}
 
-	init_waitqueue_head(&usbhid->wait);
-	INIT_WORK(&usbhid->reset_work, hid_reset);
-	INIT_WORK(&usbhid->restart_work, __usbhid_restart_queues);
-	setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
-
-	spin_lock_init(&usbhid->lock);
-
 	usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
 	if (!usbhid->urbctrl) {
 		ret = -ENOMEM;
@@ -1179,6 +1172,12 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
 	usbhid->intf = intf;
 	usbhid->ifnum = interface->desc.bInterfaceNumber;
 
+	init_waitqueue_head(&usbhid->wait);
+	INIT_WORK(&usbhid->reset_work, hid_reset);
+	INIT_WORK(&usbhid->restart_work, __usbhid_restart_queues);
+	setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
+	spin_lock_init(&usbhid->lock);
+
 	ret = hid_add_device(hid);
 	if (ret) {
 		if (ret != -ENODEV)

drivers/hwmon/applesmc.c

@@ -195,6 +195,9 @@ static unsigned int applesmc_accelerometer;
 /* Indicates whether this computer has light sensors and keyboard backlight. */
 static unsigned int applesmc_light;
 
+/* The number of fans handled by the driver */
+static unsigned int fans_handled;
+
 /* Indicates which temperature sensors set to use. */
 static unsigned int applesmc_temperature_set;
 
@@ -1492,39 +1495,24 @@ static int __init applesmc_init(void)
 
 	/* create fan files */
 	count = applesmc_get_fan_count();
-	if (count < 0) {
+	if (count < 0)
 		printk(KERN_ERR "applesmc: Cannot get the number of fans.\n");
-	} else {
+	else
 		printk(KERN_INFO "applesmc: %d fans found.\n", count);
 
-		switch (count) {
-		default:
-			printk(KERN_WARNING "applesmc: More than 4 fans found,"
-					" but at most 4 fans are supported"
-						" by the driver.\n");
-		case 4:
-			ret = sysfs_create_group(&pdev->dev.kobj,
-						 &fan_attribute_groups[3]);
-			if (ret)
-				goto out_key_enumeration;
-		case 3:
-			ret = sysfs_create_group(&pdev->dev.kobj,
-						 &fan_attribute_groups[2]);
-			if (ret)
-				goto out_key_enumeration;
-		case 2:
-			ret = sysfs_create_group(&pdev->dev.kobj,
-						 &fan_attribute_groups[1]);
-			if (ret)
-				goto out_key_enumeration;
-		case 1:
-			ret = sysfs_create_group(&pdev->dev.kobj,
-						 &fan_attribute_groups[0]);
-			if (ret)
-				goto out_fan_1;
-		case 0:
-			;
-		}
+	if (count > 4) {
+		count = 4;
+		printk(KERN_WARNING "applesmc: More than 4 fans found,"
+		       " but at most 4 fans are supported"
+		       " by the driver.\n");
+	}
+
+	while (fans_handled < count) {
+		ret = sysfs_create_group(&pdev->dev.kobj,
+					 &fan_attribute_groups[fans_handled]);
+		if (ret)
+			goto out_fans;
+		fans_handled++;
 	}
 
 	for (i = 0;
@@ -1593,10 +1581,10 @@ out_accelerometer:
 		applesmc_release_accelerometer();
 out_temperature:
 	sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
-	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
-out_fan_1:
-	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
-out_key_enumeration:
+out_fans:
+	while (fans_handled)
+		sysfs_remove_group(&pdev->dev.kobj,
+				   &fan_attribute_groups[--fans_handled]);
 	sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
 out_name:
 	sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
@@ -1622,8 +1610,9 @@ static void __exit applesmc_exit(void)
 	if (applesmc_accelerometer)
 		applesmc_release_accelerometer();
 	sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
-	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
-	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
+	while (fans_handled)
+		sysfs_remove_group(&pdev->dev.kobj,
+				   &fan_attribute_groups[--fans_handled]);
 	sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
 	sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
 	platform_device_unregister(pdev);

drivers/hwmon/asc7621.c

@@ -268,8 +268,11 @@ static ssize_t store_fan16(struct device *dev,
 	if (strict_strtol(buf, 10, &reqval))
 		return -EINVAL;
 
+	/* If a minimum RPM of zero is requested, then we set the register to
+	   0xffff. This value allows the fan to be stopped completely without
+	   generating an alarm. */
 	reqval =
-	    (SENSORS_LIMIT((reqval) <= 0 ? 0 : 5400000 / (reqval), 0, 65534));
+	    (reqval <= 0 ? 0xffff : SENSORS_LIMIT(5400000 / reqval, 0, 0xfffe));
 
 	mutex_lock(&data->update_lock);
 	data->reg[param->msb[0]] = (reqval >> 8) & 0xff;
@@ -285,8 +288,9 @@ static ssize_t store_fan16(struct device *dev,
  * Voltages are scaled in the device so that the nominal voltage
  * is 3/4ths of the 0-255 range (i.e. 192).
  * If all voltages are 'normal' then all voltage registers will
- * read 0xC0.  This doesn't help us if we don't have a point of refernce.
- * The data sheet however provides us with the full scale value for each
+ * read 0xC0.
+ *
+ * The data sheet provides us with the 3/4 scale value for each voltage
  * which is stored in in_scaling.  The sda->index parameter value provides
  * the index into in_scaling.
  *
@@ -295,7 +299,7 @@ static ssize_t store_fan16(struct device *dev,
  */
 
 static int asc7621_in_scaling[] = {
-	3320, 3000, 4380, 6640, 16000
+	2500, 2250, 3300, 5000, 12000
 };
 
 static ssize_t show_in10(struct device *dev, struct device_attribute *attr,
@@ -306,19 +310,12 @@ static ssize_t show_in10(struct device *dev, struct device_attribute *attr,
 	u8 nr = sda->index;
 
 	mutex_lock(&data->update_lock);
-	regval = (data->reg[param->msb[0]] * asc7621_in_scaling[nr]) / 256;
-
-	/* The LSB value is a 2-bit scaling of the MSB's LSbit value.
-	 * I.E.  If the maximim voltage for this input is 6640 millivolts then
-	 * a MSB register value of 0 = 0mv and 255 = 6640mv.
-	 * A 1 step change therefore represents 25.9mv (6640 / 256).
-	 * The extra 2-bits therefore represent increments of 6.48mv.
-	 */
-	regval += ((asc7621_in_scaling[nr] / 256) / 4) *
-	    (data->reg[param->lsb[0]] >> 6);
-
+	regval = (data->reg[param->msb[0]] << 8) | (data->reg[param->lsb[0]]);
 	mutex_unlock(&data->update_lock);
 
+	/* The LSB value is a 2-bit scaling of the MSB's LSbit value. */
+	regval = (regval >> 6) * asc7621_in_scaling[nr] / (0xc0 << 2);
+
 	return sprintf(buf, "%u\n", regval);
 }
 
@@ -331,7 +328,7 @@ static ssize_t show_in8(struct device *dev, struct device_attribute *attr,
 
 	return sprintf(buf, "%u\n",
 		       ((data->reg[param->msb[0]] *
-			 asc7621_in_scaling[nr]) / 256));
+			 asc7621_in_scaling[nr]) / 0xc0));
 }
 
 static ssize_t store_in8(struct device *dev, struct device_attribute *attr,
@@ -344,9 +341,11 @@ static ssize_t store_in8(struct device *dev, struct device_attribute *attr,
 	if (strict_strtol(buf, 10, &reqval))
 		return -EINVAL;
 
-	reqval = SENSORS_LIMIT(reqval, 0, asc7621_in_scaling[nr]);
+	reqval = SENSORS_LIMIT(reqval, 0, 0xffff);
 
-	reqval = (reqval * 255 + 128) / asc7621_in_scaling[nr];
+	reqval = reqval * 0xc0 / asc7621_in_scaling[nr];
+
+	reqval = SENSORS_LIMIT(reqval, 0, 0xff);
 
 	mutex_lock(&data->update_lock);
 	data->reg[param->msb[0]] = reqval;
@@ -846,11 +845,11 @@ static struct asc7621_param asc7621_params[] = {
 	PWRITE(in3_max, 3, PRI_LOW, 0x4b, 0, 0, 0, in8),
 	PWRITE(in4_max, 4, PRI_LOW, 0x4d, 0, 0, 0, in8),
 
-	PREAD(in0_alarm, 0, PRI_LOW, 0x41, 0, 0x01, 0, bitmask),
-	PREAD(in1_alarm, 1, PRI_LOW, 0x41, 0, 0x01, 1, bitmask),
-	PREAD(in2_alarm, 2, PRI_LOW, 0x41, 0, 0x01, 2, bitmask),
-	PREAD(in3_alarm, 3, PRI_LOW, 0x41, 0, 0x01, 3, bitmask),
-	PREAD(in4_alarm, 4, PRI_LOW, 0x42, 0, 0x01, 0, bitmask),
+	PREAD(in0_alarm, 0, PRI_HIGH, 0x41, 0, 0x01, 0, bitmask),
+	PREAD(in1_alarm, 1, PRI_HIGH, 0x41, 0, 0x01, 1, bitmask),
+	PREAD(in2_alarm, 2, PRI_HIGH, 0x41, 0, 0x01, 2, bitmask),
+	PREAD(in3_alarm, 3, PRI_HIGH, 0x41, 0, 0x01, 3, bitmask),
+	PREAD(in4_alarm, 4, PRI_HIGH, 0x42, 0, 0x01, 0, bitmask),
 
 	PREAD(fan1_input, 0, PRI_HIGH, 0x29, 0x28, 0, 0, fan16),
 	PREAD(fan2_input, 1, PRI_HIGH, 0x2b, 0x2a, 0, 0, fan16),
@@ -862,10 +861,10 @@ static struct asc7621_param asc7621_params[] = {
 	PWRITE(fan3_min, 2, PRI_LOW, 0x59, 0x58, 0, 0, fan16),
 	PWRITE(fan4_min, 3, PRI_LOW, 0x5b, 0x5a, 0, 0, fan16),
 
-	PREAD(fan1_alarm, 0, PRI_LOW, 0x42, 0, 0x01, 0, bitmask),
-	PREAD(fan2_alarm, 1, PRI_LOW, 0x42, 0, 0x01, 1, bitmask),
-	PREAD(fan3_alarm, 2, PRI_LOW, 0x42, 0, 0x01, 2, bitmask),
-	PREAD(fan4_alarm, 3, PRI_LOW, 0x42, 0, 0x01, 3, bitmask),
+	PREAD(fan1_alarm, 0, PRI_HIGH, 0x42, 0, 0x01, 2, bitmask),
+	PREAD(fan2_alarm, 1, PRI_HIGH, 0x42, 0, 0x01, 3, bitmask),
+	PREAD(fan3_alarm, 2, PRI_HIGH, 0x42, 0, 0x01, 4, bitmask),
+	PREAD(fan4_alarm, 3, PRI_HIGH, 0x42, 0, 0x01, 5, bitmask),
 
 	PREAD(temp1_input, 0, PRI_HIGH, 0x25, 0x10, 0, 0, temp10),
 	PREAD(temp2_input, 1, PRI_HIGH, 0x26, 0x15, 0, 0, temp10),
@@ -886,10 +885,10 @@ static struct asc7621_param asc7621_params[] = {
 	PWRITE(temp3_max, 2, PRI_LOW, 0x53, 0, 0, 0, temp8),
 	PWRITE(temp4_max, 3, PRI_LOW, 0x35, 0, 0, 0, temp8),
 
-	PREAD(temp1_alarm, 0, PRI_LOW, 0x41, 0, 0x01, 4, bitmask),
-	PREAD(temp2_alarm, 1, PRI_LOW, 0x41, 0, 0x01, 5, bitmask),
-	PREAD(temp3_alarm, 2, PRI_LOW, 0x41, 0, 0x01, 6, bitmask),
-	PREAD(temp4_alarm, 3, PRI_LOW, 0x43, 0, 0x01, 0, bitmask),
+	PREAD(temp1_alarm, 0, PRI_HIGH, 0x41, 0, 0x01, 4, bitmask),
+	PREAD(temp2_alarm, 1, PRI_HIGH, 0x41, 0, 0x01, 5, bitmask),
+	PREAD(temp3_alarm, 2, PRI_HIGH, 0x41, 0, 0x01, 6, bitmask),
+	PREAD(temp4_alarm, 3, PRI_HIGH, 0x43, 0, 0x01, 0, bitmask),
 
 	PWRITE(temp1_source, 0, PRI_LOW, 0x02, 0, 0x07, 4, bitmask),
 	PWRITE(temp2_source, 1, PRI_LOW, 0x02, 0, 0x07, 0, bitmask),
@@ -898,7 +897,7 @@ static struct asc7621_param asc7621_params[] = {
 
 	PWRITE(temp1_smoothing_enable, 0, PRI_LOW, 0x62, 0, 0x01, 3, bitmask),
 	PWRITE(temp2_smoothing_enable, 1, PRI_LOW, 0x63, 0, 0x01, 7, bitmask),
-	PWRITE(temp3_smoothing_enable, 2, PRI_LOW, 0x64, 0, 0x01, 3, bitmask),
+	PWRITE(temp3_smoothing_enable, 2, PRI_LOW, 0x63, 0, 0x01, 3, bitmask),
 	PWRITE(temp4_smoothing_enable, 3, PRI_LOW, 0x3c, 0, 0x01, 3, bitmask),
 
 	PWRITE(temp1_smoothing_time, 0, PRI_LOW, 0x62, 0, 0x07, 0, temp_st),

drivers/hwmon/hp_accel.c

@@ -328,8 +328,8 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
 	lis3lv02d_joystick_disable();
 	lis3lv02d_poweroff(&lis3_dev);
 
-	flush_work(&hpled_led.work);
 	led_classdev_unregister(&hpled_led.led_classdev);
+	flush_work(&hpled_led.work);
 
 	return lis3lv02d_remove_fs(&lis3_dev);
 }

drivers/input/joystick/iforce/iforce-main.c

@@ -54,6 +54,9 @@ static signed short btn_avb_wheel[] =
 static signed short abs_joystick[] =
 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
 
+static signed short abs_joystick_rudder[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y, -1 };
+
 static signed short abs_avb_pegasus[] =
 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
   ABS_HAT1X, ABS_HAT1Y, -1 };
@@ -76,8 +79,9 @@ static struct iforce_device iforce_device[] = {
 	{ 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x061c, 0xc084, "ACT LABS Force RS",				btn_wheel, abs_wheel, ff_iforce },
 	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",	btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback",	btn_joystick, abs_joystick_rudder, ff_iforce },
 	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
-	{ 0x06f8, 0x0004, "Gullemot Jet Leader 3D",			btn_joystick, abs_joystick, ff_iforce }, //?
+	{ 0x06f8, 0xa302, "Guillemot Jet Leader 3D",			btn_joystick, abs_joystick, ff_iforce }, //?
 	{ 0x06d6, 0x29bc, "Trust Force Feedback Race Master",		btn_wheel, abs_wheel, ff_iforce },
 	{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",		btn_joystick, abs_joystick, ff_iforce }
 };

drivers/input/joystick/iforce/iforce-usb.c

@@ -212,6 +212,7 @@ static struct usb_device_id iforce_usb_ids [] = {
 	{ USB_DEVICE(0x061c, 0xc0a4) },         /* ACT LABS Force RS */
 	{ USB_DEVICE(0x061c, 0xc084) },         /* ACT LABS Force RS */
 	{ USB_DEVICE(0x06f8, 0x0001) },		/* Guillemot Race Leader Force Feedback */
+	{ USB_DEVICE(0x06f8, 0x0003) },		/* Guillemot Jet Leader Force Feedback */
 	{ USB_DEVICE(0x06f8, 0x0004) },		/* Guillemot Force Feedback Racing Wheel */
 	{ USB_DEVICE(0x06f8, 0xa302) },		/* Guillemot Jet Leader 3D */
 	{ }					/* Terminating entry */

drivers/input/mouse/elantech.c

@@ -185,7 +185,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	int fingers;
 	static int old_fingers;
 
-	if (etd->fw_version_maj == 0x01) {
+	if (etd->fw_version < 0x020000) {
 		/*
 		 * byte 0:  D   U  p1  p2   1  p3   R   L
 		 * byte 1:  f   0  th  tw  x9  x8  y9  y8
@@ -227,7 +227,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
 	input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
 
-	if ((etd->fw_version_maj == 0x01) &&
+	if (etd->fw_version < 0x020000 &&
 	    (etd->capabilities & ETP_CAP_HAS_ROCKER)) {
 		/* rocker up */
 		input_report_key(dev, BTN_FORWARD, packet[0] & 0x40);
@@ -321,7 +321,7 @@ static int elantech_check_parity_v1(struct psmouse *psmouse)
 	unsigned char p1, p2, p3;
 
 	/* Parity bits are placed differently */
-	if (etd->fw_version_maj == 0x01) {
+	if (etd->fw_version < 0x020000) {
 		/* byte 0:  D   U  p1  p2   1  p3   R   L */
 		p1 = (packet[0] & 0x20) >> 5;
 		p2 = (packet[0] & 0x10) >> 4;
@@ -457,7 +457,7 @@ static void elantech_set_input_params(struct psmouse *psmouse)
 	switch (etd->hw_version) {
 	case 1:
 		/* Rocker button */
-		if ((etd->fw_version_maj == 0x01) &&
+		if (etd->fw_version < 0x020000 &&
 		    (etd->capabilities & ETP_CAP_HAS_ROCKER)) {
 			__set_bit(BTN_FORWARD, dev->keybit);
 			__set_bit(BTN_BACK, dev->keybit);
@@ -686,15 +686,14 @@ int elantech_init(struct psmouse *psmouse)
 		pr_err("elantech.c: failed to query firmware version.\n");
 		goto init_fail;
 	}
-	etd->fw_version_maj = param[0];
-	etd->fw_version_min = param[2];
+
+	etd->fw_version = (param[0] << 16) | (param[1] << 8) | param[2];
 
 	/*
 	 * Assume every version greater than this is new EeePC style
 	 * hardware with 6 byte packets
 	 */
-	if ((etd->fw_version_maj == 0x02 && etd->fw_version_min >= 0x30) ||
-	    etd->fw_version_maj > 0x02) {
+	if (etd->fw_version >= 0x020030) {
 		etd->hw_version = 2;
 		/* For now show extra debug information */
 		etd->debug = 1;
@@ -704,8 +703,9 @@ int elantech_init(struct psmouse *psmouse)
 		etd->hw_version = 1;
 		etd->paritycheck = 1;
 	}
-	pr_info("elantech.c: assuming hardware version %d, firmware version %d.%d\n",
-		etd->hw_version, etd->fw_version_maj, etd->fw_version_min);
+
+	pr_info("elantech.c: assuming hardware version %d, firmware version %d.%d.%d\n",
+		etd->hw_version, param[0], param[1], param[2]);
 
 	if (synaptics_send_cmd(psmouse, ETP_CAPABILITIES_QUERY, param)) {
 		pr_err("elantech.c: failed to query capabilities.\n");
@@ -720,8 +720,8 @@ int elantech_init(struct psmouse *psmouse)
 	 * a touch action starts causing the mouse cursor or scrolled page
 	 * to jump. Enable a workaround.
 	 */
-	if (etd->fw_version_maj == 0x02 && etd->fw_version_min == 0x22) {
-		pr_info("elantech.c: firmware version 2.34 detected, "
+	if (etd->fw_version == 0x020022) {
+		pr_info("elantech.c: firmware version 2.0.34 detected, "
 			"enabling jumpy cursor workaround\n");
 		etd->jumpy_cursor = 1;
 	}

drivers/input/mouse/elantech.h

@@ -100,11 +100,10 @@ struct elantech_data {
 	unsigned char reg_26;
 	unsigned char debug;
 	unsigned char capabilities;
-	unsigned char fw_version_maj;
-	unsigned char fw_version_min;
-	unsigned char hw_version;
 	unsigned char paritycheck;
 	unsigned char jumpy_cursor;
+	unsigned char hw_version;
+	unsigned int  fw_version;
 	unsigned char parity[256];
 };
 

drivers/input/mouse/psmouse-base.c

@@ -1394,6 +1394,7 @@ static int psmouse_reconnect(struct serio *serio)
 	struct psmouse *psmouse = serio_get_drvdata(serio);
 	struct psmouse *parent = NULL;
 	struct serio_driver *drv = serio->drv;
+	unsigned char type;
 	int rc = -1;
 
 	if (!drv || !psmouse) {
@@ -1413,10 +1414,15 @@ static int psmouse_reconnect(struct serio *serio)
 	if (psmouse->reconnect) {
 		if (psmouse->reconnect(psmouse))
 			goto out;
-	} else if (psmouse_probe(psmouse) < 0 ||
-		   psmouse->type != psmouse_extensions(psmouse,
-						psmouse_max_proto, false)) {
-		goto out;
+	} else {
+		psmouse_reset(psmouse);
+
+		if (psmouse_probe(psmouse) < 0)
+			goto out;
+
+		type = psmouse_extensions(psmouse, psmouse_max_proto, false);
+		if (psmouse->type != type)
+			goto out;
 	}
 
 	/* ok, the device type (and capabilities) match the old one,

drivers/input/touchscreen/ad7877.c

@@ -156,9 +156,14 @@ struct ser_req {
 	u16			reset;
 	u16			ref_on;
 	u16			command;
-	u16			sample;
 	struct spi_message	msg;
 	struct spi_transfer	xfer[6];
+
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+	u16 sample ____cacheline_aligned;
 };
 
 struct ad7877 {
@@ -182,8 +187,6 @@ struct ad7877 {
 	u8			averaging;
 	u8			pen_down_acc_interval;
 
-	u16			conversion_data[AD7877_NR_SENSE];
-
 	struct spi_transfer	xfer[AD7877_NR_SENSE + 2];
 	struct spi_message	msg;
 
@@ -195,6 +198,12 @@ struct ad7877 {
 	spinlock_t		lock;
 	struct timer_list	timer;		/* P: lock */
 	unsigned		pending:1;	/* P: lock */
+
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+	u16 conversion_data[AD7877_NR_SENSE] ____cacheline_aligned;
 };
 
 static int gpio3;

drivers/mfd/wm831x-core.c

@@ -349,6 +349,9 @@ int wm831x_auxadc_read(struct wm831x *wm831x, enum wm831x_auxadc input)
 		goto disable;
 	}
 
+	/* If an interrupt arrived late clean up after it */
+	try_wait_for_completion(&wm831x->auxadc_done);
+
 	/* Ignore the result to allow us to soldier on without IRQ hookup */
 	wait_for_completion_timeout(&wm831x->auxadc_done, msecs_to_jiffies(5));
 

drivers/mfd/wm8350-core.c

@@ -363,6 +363,10 @@ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
 	reg |= 1 << channel | WM8350_AUXADC_POLL;
 	wm8350_reg_write(wm8350, WM8350_DIGITISER_CONTROL_1, reg);
 
+	/* If a late IRQ left the completion signalled then consume
+	 * the completion. */
+	try_wait_for_completion(&wm8350->auxadc_done);
+
 	/* We ignore the result of the completion and just check for a
 	 * conversion result, allowing us to soldier on if the IRQ
 	 * infrastructure is not set up for the chip. */

drivers/mmc/host/at91_mci.c

@@ -314,8 +314,8 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
 			dmabuf = (unsigned *)tmpv;
 		}
 
+		flush_kernel_dcache_page(sg_page(sg));
 		kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
-		dmac_flush_range((void *)sgbuffer, ((void *)sgbuffer) + amount);
 		data->bytes_xfered += amount;
 		if (size == 0)
 			break;

drivers/mmc/host/atmel-mci.c

@@ -266,7 +266,7 @@ static int atmci_req_show(struct seq_file *s, void *v)
 				"CMD%u(0x%x) flg %x rsp %x %x %x %x err %d\n",
 				cmd->opcode, cmd->arg, cmd->flags,
 				cmd->resp[0], cmd->resp[1], cmd->resp[2],
-				cmd->resp[2], cmd->error);
+				cmd->resp[3], cmd->error);
 		if (data)
 			seq_printf(s, "DATA %u / %u * %u flg %x err %d\n",
 				data->bytes_xfered, data->blocks,
@@ -276,7 +276,7 @@ static int atmci_req_show(struct seq_file *s, void *v)
 				"CMD%u(0x%x) flg %x rsp %x %x %x %x err %d\n",
 				stop->opcode, stop->arg, stop->flags,
 				stop->resp[0], stop->resp[1], stop->resp[2],
-				stop->resp[2], stop->error);
+				stop->resp[3], stop->error);
 	}
 
 	spin_unlock_bh(&slot->host->lock);
@@ -569,9 +569,10 @@ static void atmci_dma_cleanup(struct atmel_mci *host)
 {
 	struct mmc_data			*data = host->data;
 
-	dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len,
-		     ((data->flags & MMC_DATA_WRITE)
-		      ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
+	if (data)
+		dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len,
+			     ((data->flags & MMC_DATA_WRITE)
+			      ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
 }
 
 static void atmci_stop_dma(struct atmel_mci *host)
@@ -1099,8 +1100,8 @@ static void atmci_command_complete(struct atmel_mci *host,
 			"command error: status=0x%08x\n", status);
 
 		if (cmd->data) {
-			host->data = NULL;
 			atmci_stop_dma(host);
+			host->data = NULL;
 			mci_writel(host, IDR, MCI_NOTBUSY
 					| MCI_TXRDY | MCI_RXRDY
 					| ATMCI_DATA_ERROR_FLAGS);
@@ -1293,6 +1294,7 @@ static void atmci_tasklet_func(unsigned long priv)
 			} else {
 				data->bytes_xfered = data->blocks * data->blksz;
 				data->error = 0;
+				mci_writel(host, IDR, ATMCI_DATA_ERROR_FLAGS);
 			}
 
 			if (!data->stop) {
@@ -1751,13 +1753,13 @@ static int __init atmci_probe(struct platform_device *pdev)
 	ret = -ENODEV;
 	if (pdata->slot[0].bus_width) {
 		ret = atmci_init_slot(host, &pdata->slot[0],
-				MCI_SDCSEL_SLOT_A, 0);
+				0, MCI_SDCSEL_SLOT_A);
 		if (!ret)
 			nr_slots++;
 	}
 	if (pdata->slot[1].bus_width) {
 		ret = atmci_init_slot(host, &pdata->slot[1],
-				MCI_SDCSEL_SLOT_B, 1);
+				1, MCI_SDCSEL_SLOT_B);
 		if (!ret)
 			nr_slots++;
 	}

drivers/net/gianfar.c

@@ -1649,6 +1649,7 @@ static void free_skb_resources(struct gfar_private *priv)
 			sizeof(struct rxbd8) * priv->total_rx_ring_size,
 			priv->tx_queue[0]->tx_bd_base,
 			priv->tx_queue[0]->tx_bd_dma_base);
+	skb_queue_purge(&priv->rx_recycle);
 }
 
 void gfar_start(struct net_device *dev)
@@ -2088,7 +2089,6 @@ static int gfar_close(struct net_device *dev)
 
 	disable_napi(priv);
 
-	skb_queue_purge(&priv->rx_recycle);
 	cancel_work_sync(&priv->reset_task);
 	stop_gfar(dev);
 

drivers/net/phy/micrel.c

@@ -32,6 +32,7 @@ static int kszphy_config_init(struct phy_device *phydev)
 
 static struct phy_driver ks8001_driver = {
 	.phy_id		= PHY_ID_KS8001,
+	.name		= "Micrel KS8001",
 	.phy_id_mask	= 0x00fffff0,
 	.features	= PHY_BASIC_FEATURES,
 	.flags		= PHY_POLL,

drivers/net/veth.c

@@ -187,7 +187,6 @@ tx_drop:
 	return NETDEV_TX_OK;
 
 rx_drop:
-	kfree_skb(skb);
 	rcv_stats->rx_dropped++;
 	return NETDEV_TX_OK;
 }

drivers/net/wireless/ath/ar9170/usb.c

@@ -727,12 +727,16 @@ static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
 {
 	struct device *parent = aru->udev->dev.parent;
 
+	complete(&aru->firmware_loading_complete);
+
 	/* unbind anything failed */
 	if (parent)
 		down(&parent->sem);
 	device_release_driver(&aru->udev->dev);
 	if (parent)
 		up(&parent->sem);
+
+	usb_put_dev(aru->udev);
 }
 
 static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
@@ -761,6 +765,8 @@ static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
 	if (err)
 		goto err_unrx;
 
+	complete(&aru->firmware_loading_complete);
+	usb_put_dev(aru->udev);
 	return;
 
  err_unrx:
@@ -858,6 +864,7 @@ static int ar9170_usb_probe(struct usb_interface *intf,
 	init_usb_anchor(&aru->tx_pending);
 	init_usb_anchor(&aru->tx_submitted);
 	init_completion(&aru->cmd_wait);
+	init_completion(&aru->firmware_loading_complete);
 	spin_lock_init(&aru->tx_urb_lock);
 
 	aru->tx_pending_urbs = 0;
@@ -877,6 +884,7 @@ static int ar9170_usb_probe(struct usb_interface *intf,
 	if (err)
 		goto err_freehw;
 
+	usb_get_dev(aru->udev);
 	return request_firmware_nowait(THIS_MODULE, 1, "ar9170.fw",
 				       &aru->udev->dev, GFP_KERNEL, aru,
 				       ar9170_usb_firmware_step2);
@@ -896,6 +904,9 @@ static void ar9170_usb_disconnect(struct usb_interface *intf)
 		return;
 
 	aru->common.state = AR9170_IDLE;
+
+	wait_for_completion(&aru->firmware_loading_complete);
+
 	ar9170_unregister(&aru->common);
 	ar9170_usb_cancel_urbs(aru);
 

drivers/net/wireless/ath/ar9170/usb.h

@@ -71,6 +71,7 @@ struct ar9170_usb {
 	unsigned int tx_pending_urbs;
 
 	struct completion cmd_wait;
+	struct completion firmware_loading_complete;
 	int readlen;
 	u8 *readbuf;
 

drivers/net/wireless/iwlwifi/iwl-commands.h

@@ -2621,7 +2621,9 @@ struct iwl_ssid_ie {
 #define PROBE_OPTION_MAX_3945		4
 #define PROBE_OPTION_MAX		20
 #define TX_CMD_LIFE_TIME_INFINITE	cpu_to_le32(0xFFFFFFFF)
-#define IWL_GOOD_CRC_TH			cpu_to_le16(1)
+#define IWL_GOOD_CRC_TH_DISABLED	0
+#define IWL_GOOD_CRC_TH_DEFAULT		cpu_to_le16(1)
+#define IWL_GOOD_CRC_TH_NEVER		cpu_to_le16(0xffff)
 #define IWL_MAX_SCAN_SIZE 1024
 #define IWL_MAX_CMD_SIZE 4096
 #define IWL_MAX_PROBE_REQUEST		200

drivers/net/wireless/iwlwifi/iwl-scan.c

@@ -813,16 +813,29 @@ static void iwl_bg_request_scan(struct work_struct *data)
 			rate = IWL_RATE_1M_PLCP;
 			rate_flags = RATE_MCS_CCK_MSK;
 		}
-		scan->good_CRC_th = 0;
+		scan->good_CRC_th = IWL_GOOD_CRC_TH_DISABLED;
 	} else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
 		band = IEEE80211_BAND_5GHZ;
 		rate = IWL_RATE_6M_PLCP;
 		/*
-		 * If active scaning is requested but a certain channel
-		 * is marked passive, we can do active scanning if we
-		 * detect transmissions.
+		 * If active scanning is requested but a certain channel is
+		 * marked passive, we can do active scanning if we detect
+		 * transmissions.
+		 *
+		 * There is an issue with some firmware versions that triggers
+		 * a sysassert on a "good CRC threshold" of zero (== disabled),
+		 * on a radar channel even though this means that we should NOT
+		 * send probes.
+		 *
+		 * The "good CRC threshold" is the number of frames that we
+		 * need to receive during our dwell time on a channel before
+		 * sending out probes -- setting this to a huge value will
+		 * mean we never reach it, but at the same time work around
+		 * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
+		 * here instead of IWL_GOOD_CRC_TH_DISABLED.
 		 */
-		scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
+		scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
+						IWL_GOOD_CRC_TH_NEVER;
 
 		/* Force use of chains B and C (0x6) for scan Rx for 4965
 		 * Avoid A (0x1) because of its off-channel reception on A-band.

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -2967,7 +2967,8 @@ static void iwl3945_bg_request_scan(struct work_struct *data)
 		 * is marked passive, we can do active scanning if we
 		 * detect transmissions.
 		 */
-		scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
+		scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
+						IWL_GOOD_CRC_TH_DISABLED;
 		band = IEEE80211_BAND_5GHZ;
 	} else {
 		IWL_WARN(priv, "Invalid scan band count\n");

drivers/pci/setup-bus.c

@@ -838,65 +838,11 @@ static void pci_bus_dump_resources(struct pci_bus *bus)
 	}
 }
 
-static int __init pci_bus_get_depth(struct pci_bus *bus)
-{
-	int depth = 0;
-	struct pci_dev *dev;
-
-	list_for_each_entry(dev, &bus->devices, bus_list) {
-		int ret;
-		struct pci_bus *b = dev->subordinate;
-		if (!b)
-			continue;
-
-		ret = pci_bus_get_depth(b);
-		if (ret + 1 > depth)
-			depth = ret + 1;
-	}
-
-	return depth;
-}
-static int __init pci_get_max_depth(void)
-{
-	int depth = 0;
-	struct pci_bus *bus;
-
-	list_for_each_entry(bus, &pci_root_buses, node) {
-		int ret;
-
-		ret = pci_bus_get_depth(bus);
-		if (ret > depth)
-			depth = ret;
-	}
-
-	return depth;
-}
-
-/*
- * first try will not touch pci bridge res
- * second  and later try will clear small leaf bridge res
- * will stop till to the max  deepth if can not find good one
- */
 void __init
 pci_assign_unassigned_resources(void)
 {
 	struct pci_bus *bus;
-	int tried_times = 0;
-	enum release_type rel_type = leaf_only;
-	struct resource_list_x head, *list;
-	unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
-				  IORESOURCE_PREFETCH;
-	unsigned long failed_type;
-	int max_depth = pci_get_max_depth();
-	int pci_try_num;
 
-	head.next = NULL;
-
-	pci_try_num = max_depth + 1;
-	printk(KERN_DEBUG "PCI: max bus depth: %d pci_try_num: %d\n",
-		 max_depth, pci_try_num);
-
-again:
 	/* Depth first, calculate sizes and alignments of all
 	   subordinate buses. */
 	list_for_each_entry(bus, &pci_root_buses, node) {
@@ -904,65 +850,9 @@ again:
 	}
 	/* Depth last, allocate resources and update the hardware. */
 	list_for_each_entry(bus, &pci_root_buses, node) {
-		__pci_bus_assign_resources(bus, &head);
-	}
-	tried_times++;
-
-	/* any device complain? */
-	if (!head.next)
-		goto enable_and_dump;
-	failed_type = 0;
-	for (list = head.next; list;) {
-		failed_type |= list->flags;
-		list = list->next;
-	}
-	/*
-	 * io port are tight, don't try extra
-	 * or if reach the limit, don't want to try more
-	 */
-	failed_type &= type_mask;
-	if ((failed_type == IORESOURCE_IO) || (tried_times >= pci_try_num)) {
-		free_failed_list(&head);
-		goto enable_and_dump;
-	}
-
-	printk(KERN_DEBUG "PCI: No. %d try to assign unassigned res\n",
-			 tried_times + 1);
-
-	/* third times and later will not check if it is leaf */
-	if ((tried_times + 1) > 2)
-		rel_type = whole_subtree;
-
-	/*
-	 * Try to release leaf bridge's resources that doesn't fit resource of
-	 * child device under that bridge
-	 */
-	for (list = head.next; list;) {
-		bus = list->dev->bus;
-		pci_bus_release_bridge_resources(bus, list->flags & type_mask,
-						  rel_type);
-		list = list->next;
-	}
-	/* restore size and flags */
-	for (list = head.next; list;) {
-		struct resource *res = list->res;
-
-		res->start = list->start;
-		res->end = list->end;
-		res->flags = list->flags;
-		if (list->dev->subordinate)
-			res->flags = 0;
-
-		list = list->next;
-	}
-	free_failed_list(&head);
-
-	goto again;
-
-enable_and_dump:
-	/* Depth last, update the hardware. */
-	list_for_each_entry(bus, &pci_root_buses, node)
+		pci_bus_assign_resources(bus);
 		pci_enable_bridges(bus);
+	}
 
 	/* dump the resource on buses */
 	list_for_each_entry(bus, &pci_root_buses, node) {

drivers/s390/block/dasd.c

@@ -37,6 +37,9 @@
  */
 #define DASD_CHANQ_MAX_SIZE 4
 
+#define DASD_SLEEPON_START_TAG	(void *) 1
+#define DASD_SLEEPON_END_TAG	(void *) 2
+
 /*
  * SECTION: exported variables of dasd.c
  */
@@ -1472,7 +1475,10 @@ void dasd_add_request_tail(struct dasd_ccw_req *cqr)
  */
 static void dasd_wakeup_cb(struct dasd_ccw_req *cqr, void *data)
 {
-	wake_up((wait_queue_head_t *) data);
+	spin_lock_irq(get_ccwdev_lock(cqr->startdev->cdev));
+	cqr->callback_data = DASD_SLEEPON_END_TAG;
+	spin_unlock_irq(get_ccwdev_lock(cqr->startdev->cdev));
+	wake_up(&generic_waitq);
 }
 
 static inline int _wait_for_wakeup(struct dasd_ccw_req *cqr)
@@ -1482,10 +1488,7 @@ static inline int _wait_for_wakeup(struct dasd_ccw_req *cqr)
 
 	device = cqr->startdev;
 	spin_lock_irq(get_ccwdev_lock(device->cdev));
-	rc = ((cqr->status == DASD_CQR_DONE ||
-	       cqr->status == DASD_CQR_NEED_ERP ||
-	       cqr->status == DASD_CQR_TERMINATED) &&
-	      list_empty(&cqr->devlist));
+	rc = (cqr->callback_data == DASD_SLEEPON_END_TAG);
 	spin_unlock_irq(get_ccwdev_lock(device->cdev));
 	return rc;
 }
@@ -1573,7 +1576,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
 			wait_event(generic_waitq, !(device->stopped));
 
 		cqr->callback = dasd_wakeup_cb;
-		cqr->callback_data = (void *) &generic_waitq;
+		cqr->callback_data = DASD_SLEEPON_START_TAG;
 		dasd_add_request_tail(cqr);
 		if (interruptible) {
 			rc = wait_event_interruptible(
@@ -1652,7 +1655,7 @@ int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr)
 	}
 
 	cqr->callback = dasd_wakeup_cb;
-	cqr->callback_data = (void *) &generic_waitq;
+	cqr->callback_data = DASD_SLEEPON_START_TAG;
 	cqr->status = DASD_CQR_QUEUED;
 	list_add(&cqr->devlist, &device->ccw_queue);
 

drivers/serial/imx.c

@@ -120,7 +120,8 @@
 #define  MX2_UCR3_RXDMUXSEL	 (1<<2)  /* RXD Muxed Input Select, on mx2/mx3 */
 #define  UCR3_INVT  	 (1<<1)  /* Inverted Infrared transmission */
 #define  UCR3_BPEN  	 (1<<0)  /* Preset registers enable */
-#define  UCR4_CTSTL_32   (32<<10) /* CTS trigger level (32 chars) */
+#define  UCR4_CTSTL_SHF  10      /* CTS trigger level shift */
+#define  UCR4_CTSTL_MASK 0x3F    /* CTS trigger is 6 bits wide */
 #define  UCR4_INVR  	 (1<<9)  /* Inverted infrared reception */
 #define  UCR4_ENIRI 	 (1<<8)  /* Serial infrared interrupt enable */
 #define  UCR4_WKEN  	 (1<<7)  /* Wake interrupt enable */
@@ -591,6 +592,9 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
 	return 0;
 }
 
+/* half the RX buffer size */
+#define CTSTL 16
+
 static int imx_startup(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
@@ -607,6 +611,10 @@ static int imx_startup(struct uart_port *port)
 	if (USE_IRDA(sport))
 		temp |= UCR4_IRSC;
 
+	/* set the trigger level for CTS */
+	temp &= ~(UCR4_CTSTL_MASK<<  UCR4_CTSTL_SHF);
+	temp |= CTSTL<<  UCR4_CTSTL_SHF;
+
 	writel(temp & ~UCR4_DREN, sport->port.membase + UCR4);
 
 	if (USE_IRDA(sport)) {

drivers/serial/mpc52xx_uart.c

@@ -1467,7 +1467,7 @@ mpc52xx_uart_init(void)
 	/*
 	 * Map the PSC FIFO Controller and init if on MPC512x.
 	 */
-	if (psc_ops->fifoc_init) {
+	if (psc_ops && psc_ops->fifoc_init) {
 		ret = psc_ops->fifoc_init();
 		if (ret)
 			return ret;

drivers/usb/core/inode.c

@@ -380,6 +380,7 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry)
 	mutex_lock(&inode->i_mutex);
 	dentry_unhash(dentry);
 	if (usbfs_empty(dentry)) {
+		dont_mount(dentry);
 		drop_nlink(dentry->d_inode);
 		drop_nlink(dentry->d_inode);
 		dput(dentry);

drivers/vhost/vhost.c

@@ -1035,7 +1035,12 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
 /* This actually signals the guest, using eventfd. */
 void vhost_signal(struct vhost_dev *dev, struct vhost_virtqueue *vq)
 {
-	__u16 flags = 0;
+	__u16 flags;
+	/* Flush out used index updates. This is paired
+	 * with the barrier that the Guest executes when enabling
+	 * interrupts. */
+	smp_mb();
+
 	if (get_user(flags, &vq->avail->flags)) {
 		vq_err(vq, "Failed to get flags");
 		return;

drivers/video/bfin-t350mcqb-fb.c

@@ -488,9 +488,9 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 	fbinfo->fbops = &bfin_t350mcqb_fb_ops;
 	fbinfo->flags = FBINFO_FLAG_DEFAULT;
 
-	info->fb_buffer =
-	    dma_alloc_coherent(NULL, fbinfo->fix.smem_len, &info->dma_handle,
-			       GFP_KERNEL);
+	info->fb_buffer = dma_alloc_coherent(NULL, fbinfo->fix.smem_len +
+				ACTIVE_VIDEO_MEM_OFFSET,
+				&info->dma_handle, GFP_KERNEL);
 
 	if (NULL == info->fb_buffer) {
 		printk(KERN_ERR DRIVER_NAME
@@ -568,8 +568,8 @@ out7:
 out6:
 	fb_dealloc_cmap(&fbinfo->cmap);
 out4:
-	dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
-			  info->dma_handle);
+	dma_free_coherent(NULL, fbinfo->fix.smem_len + ACTIVE_VIDEO_MEM_OFFSET,
+			 info->fb_buffer, info->dma_handle);
 out3:
 	framebuffer_release(fbinfo);
 out2:
@@ -592,8 +592,9 @@ static int __devexit bfin_t350mcqb_remove(struct platform_device *pdev)
 	free_irq(info->irq, info);
 
 	if (info->fb_buffer != NULL)
-		dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
-				  info->dma_handle);
+		dma_free_coherent(NULL, fbinfo->fix.smem_len +
+			ACTIVE_VIDEO_MEM_OFFSET, info->fb_buffer,
+			info->dma_handle);
 
 	fb_dealloc_cmap(&fbinfo->cmap);
 

drivers/watchdog/Kconfig

@@ -175,7 +175,7 @@ config SA1100_WATCHDOG
 
 config MPCORE_WATCHDOG
 	tristate "MPcore watchdog"
-	depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
+	depends on HAVE_ARM_TWD
 	help
 	  Watchdog timer embedded into the MPcore system.
 

drivers/watchdog/mpcore_wdt.c

@@ -31,8 +31,9 @@
 #include <linux/platform_device.h>
 #include <linux/uaccess.h>
 #include <linux/slab.h>
+#include <linux/io.h>
 
-#include <asm/hardware/arm_twd.h>
+#include <asm/smp_twd.h>
 
 struct mpcore_wdt {
 	unsigned long	timer_alive;
@@ -44,7 +45,7 @@ struct mpcore_wdt {
 };
 
 static struct platform_device *mpcore_wdt_dev;
-extern unsigned int mpcore_timer_rate;
+static DEFINE_SPINLOCK(wdt_lock);
 
 #define TIMER_MARGIN	60
 static int mpcore_margin = TIMER_MARGIN;
@@ -94,13 +95,15 @@ static irqreturn_t mpcore_wdt_fire(int irq, void *arg)
  */
 static void mpcore_wdt_keepalive(struct mpcore_wdt *wdt)
 {
-	unsigned int count;
+	unsigned long count;
 
+	spin_lock(&wdt_lock);
 	/* Assume prescale is set to 256 */
-	count = (mpcore_timer_rate / 256) * mpcore_margin;
+	count =  __raw_readl(wdt->base + TWD_WDOG_COUNTER);
+	count = (0xFFFFFFFFU - count) * (HZ / 5);
+	count = (count / 256) * mpcore_margin;
 
 	/* Reload the counter */
-	spin_lock(&wdt_lock);
 	writel(count + wdt->perturb, wdt->base + TWD_WDOG_LOAD);
 	wdt->perturb = wdt->perturb ? 0 : 1;
 	spin_unlock(&wdt_lock);
@@ -119,7 +122,6 @@ static void mpcore_wdt_start(struct mpcore_wdt *wdt)
 {
 	dev_printk(KERN_INFO, wdt->dev, "enabling watchdog.\n");
 
-	spin_lock(&wdt_lock);
 	/* This loads the count register but does NOT start the count yet */
 	mpcore_wdt_keepalive(wdt);
 
@@ -130,7 +132,6 @@ static void mpcore_wdt_start(struct mpcore_wdt *wdt)
 		/* Enable watchdog - prescale=256, watchdog mode=1, enable=1 */
 		writel(0x0000FF09, wdt->base + TWD_WDOG_CONTROL);
 	}
-	spin_unlock(&wdt_lock);
 }
 
 static int mpcore_wdt_set_heartbeat(int t)
@@ -360,7 +361,7 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev)
 	mpcore_wdt_miscdev.parent = &dev->dev;
 	ret = misc_register(&mpcore_wdt_miscdev);
 	if (ret) {
-		dev_printk(KERN_ERR, _dev,
+		dev_printk(KERN_ERR, wdt->dev,
 			"cannot register miscdev on minor=%d (err=%d)\n",
 							WATCHDOG_MINOR, ret);
 		goto err_misc;
@@ -369,13 +370,13 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev)
 	ret = request_irq(wdt->irq, mpcore_wdt_fire, IRQF_DISABLED,
 							"mpcore_wdt", wdt);
 	if (ret) {
-		dev_printk(KERN_ERR, _dev,
+		dev_printk(KERN_ERR, wdt->dev,
 			"cannot register IRQ%d for watchdog\n", wdt->irq);
 		goto err_irq;
 	}
 
 	mpcore_wdt_stop(wdt);
-	platform_set_drvdata(&dev->dev, wdt);
+	platform_set_drvdata(dev, wdt);
 	mpcore_wdt_dev = dev;
 
 	return 0;

fs/autofs4/root.c

@@ -177,8 +177,7 @@ static int try_to_fill_dentry(struct dentry *dentry, int flags)
 		}
 	/* Trigger mount for path component or follow link */
 	} else if (ino->flags & AUTOFS_INF_PENDING ||
-			autofs4_need_mount(flags) ||
-			current->link_count) {
+			autofs4_need_mount(flags)) {
 		DPRINTK("waiting for mount name=%.*s",
 			dentry->d_name.len, dentry->d_name.name);
 
@@ -262,7 +261,7 @@ static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
 		spin_unlock(&dcache_lock);
 		spin_unlock(&sbi->fs_lock);
 
-		status = try_to_fill_dentry(dentry, 0);
+		status = try_to_fill_dentry(dentry, nd->flags);
 		if (status)
 			goto out_error;
 

fs/btrfs/ioctl.c

@@ -1481,12 +1481,17 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
 		ret = -EBADF;
 		goto out_drop_write;
 	}
+
 	src = src_file->f_dentry->d_inode;
 
 	ret = -EINVAL;
 	if (src == inode)
 		goto out_fput;
 
+	/* the src must be open for reading */
+	if (!(src_file->f_mode & FMODE_READ))
+		goto out_fput;
+
 	ret = -EISDIR;
 	if (S_ISDIR(src->i_mode) || S_ISDIR(inode->i_mode))
 		goto out_fput;

fs/cachefiles/internal.h

@@ -34,6 +34,7 @@ struct cachefiles_object {
 	loff_t				i_size;		/* object size */
 	unsigned long			flags;
 #define CACHEFILES_OBJECT_ACTIVE	0		/* T if marked active */
+#define CACHEFILES_OBJECT_BURIED	1		/* T if preemptively buried */
 	atomic_t			usage;		/* object usage count */
 	uint8_t				type;		/* object type */
 	uint8_t				new;		/* T if object new */

fs/cachefiles/namei.c

@@ -92,6 +92,59 @@ static noinline void cachefiles_printk_object(struct cachefiles_object *object,
 	kfree(keybuf);
 }
 
+/*
+ * mark the owner of a dentry, if there is one, to indicate that that dentry
+ * has been preemptively deleted
+ * - the caller must hold the i_mutex on the dentry's parent as required to
+ *   call vfs_unlink(), vfs_rmdir() or vfs_rename()
+ */
+static void cachefiles_mark_object_buried(struct cachefiles_cache *cache,
+					  struct dentry *dentry)
+{
+	struct cachefiles_object *object;
+	struct rb_node *p;
+
+	_enter(",'%*.*s'",
+	       dentry->d_name.len, dentry->d_name.len, dentry->d_name.name);
+
+	write_lock(&cache->active_lock);
+
+	p = cache->active_nodes.rb_node;
+	while (p) {
+		object = rb_entry(p, struct cachefiles_object, active_node);
+		if (object->dentry > dentry)
+			p = p->rb_left;
+		else if (object->dentry < dentry)
+			p = p->rb_right;
+		else
+			goto found_dentry;
+	}
+
+	write_unlock(&cache->active_lock);
+	_leave(" [no owner]");
+	return;
+
+	/* found the dentry for  */
+found_dentry:
+	kdebug("preemptive burial: OBJ%x [%s] %p",
+	       object->fscache.debug_id,
+	       fscache_object_states[object->fscache.state],
+	       dentry);
+
+	if (object->fscache.state < FSCACHE_OBJECT_DYING) {
+		printk(KERN_ERR "\n");
+		printk(KERN_ERR "CacheFiles: Error:"
+		       " Can't preemptively bury live object\n");
+		cachefiles_printk_object(object, NULL);
+	} else if (test_and_set_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
+		printk(KERN_ERR "CacheFiles: Error:"
+		       " Object already preemptively buried\n");
+	}
+
+	write_unlock(&cache->active_lock);
+	_leave(" [owner marked]");
+}
+
 /*
  * record the fact that an object is now active
  */
@@ -219,7 +272,8 @@ requeue:
  */
 static int cachefiles_bury_object(struct cachefiles_cache *cache,
 				  struct dentry *dir,
-				  struct dentry *rep)
+				  struct dentry *rep,
+				  bool preemptive)
 {
 	struct dentry *grave, *trap;
 	char nbuffer[8 + 8 + 1];
@@ -229,11 +283,16 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
 	       dir->d_name.len, dir->d_name.len, dir->d_name.name,
 	       rep->d_name.len, rep->d_name.len, rep->d_name.name);
 
+	_debug("remove %p from %p", rep, dir);
+
 	/* non-directories can just be unlinked */
 	if (!S_ISDIR(rep->d_inode->i_mode)) {
 		_debug("unlink stale object");
 		ret = vfs_unlink(dir->d_inode, rep);
 
+		if (preemptive)
+			cachefiles_mark_object_buried(cache, rep);
+
 		mutex_unlock(&dir->d_inode->i_mutex);
 
 		if (ret == -EIO)
@@ -325,6 +384,9 @@ try_again:
 	if (ret != 0 && ret != -ENOMEM)
 		cachefiles_io_error(cache, "Rename failed with error %d", ret);
 
+	if (preemptive)
+		cachefiles_mark_object_buried(cache, rep);
+
 	unlock_rename(cache->graveyard, dir);
 	dput(grave);
 	_leave(" = 0");
@@ -340,7 +402,7 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
 	struct dentry *dir;
 	int ret;
 
-	_enter(",{%p}", object->dentry);
+	_enter(",OBJ%x{%p}", object->fscache.debug_id, object->dentry);
 
 	ASSERT(object->dentry);
 	ASSERT(object->dentry->d_inode);
@@ -350,15 +412,25 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
 
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
 
-	/* we need to check that our parent is _still_ our parent - it may have
-	 * been renamed */
-	if (dir == object->dentry->d_parent) {
-		ret = cachefiles_bury_object(cache, dir, object->dentry);
-	} else {
-		/* it got moved, presumably by cachefilesd culling it, so it's
-		 * no longer in the key path and we can ignore it */
+	if (test_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
+		/* object allocation for the same key preemptively deleted this
+		 * object's file so that it could create its own file */
+		_debug("object preemptively buried");
 		mutex_unlock(&dir->d_inode->i_mutex);
 		ret = 0;
+	} else {
+		/* we need to check that our parent is _still_ our parent - it
+		 * may have been renamed */
+		if (dir == object->dentry->d_parent) {
+			ret = cachefiles_bury_object(cache, dir,
+						     object->dentry, false);
+		} else {
+			/* it got moved, presumably by cachefilesd culling it,
+			 * so it's no longer in the key path and we can ignore
+			 * it */
+			mutex_unlock(&dir->d_inode->i_mutex);
+			ret = 0;
+		}
 	}
 
 	dput(dir);
@@ -381,7 +453,9 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent,
 	const char *name;
 	int ret, nlen;
 
-	_enter("{%p},,%s,", parent->dentry, key);
+	_enter("OBJ%x{%p},OBJ%x,%s,",
+	       parent->fscache.debug_id, parent->dentry,
+	       object->fscache.debug_id, key);
 
 	cache = container_of(parent->fscache.cache,
 			     struct cachefiles_cache, cache);
@@ -509,7 +583,7 @@ lookup_again:
 			 * mutex) */
 			object->dentry = NULL;
 
-			ret = cachefiles_bury_object(cache, dir, next);
+			ret = cachefiles_bury_object(cache, dir, next, true);
 			dput(next);
 			next = NULL;
 
@@ -828,7 +902,7 @@ int cachefiles_cull(struct cachefiles_cache *cache, struct dentry *dir,
 	/*  actually remove the victim (drops the dir mutex) */
 	_debug("bury");
 
-	ret = cachefiles_bury_object(cache, dir, victim);
+	ret = cachefiles_bury_object(cache, dir, victim, false);
 	if (ret < 0)
 		goto error;
 

fs/cachefiles/security.c

@@ -77,6 +77,8 @@ static int cachefiles_check_cache_dir(struct cachefiles_cache *cache,
 /*
  * check the security details of the on-disk cache
  * - must be called with security override in force
+ * - must return with a security override in force - even in the case of an
+ *   error
  */
 int cachefiles_determine_cache_security(struct cachefiles_cache *cache,
 					struct dentry *root,
@@ -99,6 +101,8 @@ int cachefiles_determine_cache_security(struct cachefiles_cache *cache,
 	 * which create files */
 	ret = set_create_files_as(new, root->d_inode);
 	if (ret < 0) {
+		abort_creds(new);
+		cachefiles_begin_secure(cache, _saved_cred);
 		_leave(" = %d [cfa]", ret);
 		return ret;
 	}

fs/ceph/addr.c

@@ -504,7 +504,6 @@ static void writepages_finish(struct ceph_osd_request *req,
 	int i;
 	struct ceph_snap_context *snapc = req->r_snapc;
 	struct address_space *mapping = inode->i_mapping;
-	struct writeback_control *wbc = req->r_wbc;
 	__s32 rc = -EIO;
 	u64 bytes = 0;
 	struct ceph_client *client = ceph_inode_to_client(inode);
@@ -546,10 +545,6 @@ static void writepages_finish(struct ceph_osd_request *req,
 			clear_bdi_congested(&client->backing_dev_info,
 					    BLK_RW_ASYNC);
 
-		if (i >= wrote) {
-			dout("inode %p skipping page %p\n", inode, page);
-			wbc->pages_skipped++;
-		}
 		ceph_put_snap_context((void *)page->private);
 		page->private = 0;
 		ClearPagePrivate(page);
@@ -799,7 +794,6 @@ get_more_pages:
 				alloc_page_vec(client, req);
 				req->r_callback = writepages_finish;
 				req->r_inode = inode;
-				req->r_wbc = wbc;
 			}
 
 			/* note position of first page in pvec */

fs/ceph/caps.c

@@ -858,6 +858,8 @@ static int __ceph_is_any_caps(struct ceph_inode_info *ci)
 }
 
 /*
+ * Remove a cap.  Take steps to deal with a racing iterate_session_caps.
+ *
  * caller should hold i_lock.
  * caller will not hold session s_mutex if called from destroy_inode.
  */
@@ -866,15 +868,10 @@ void __ceph_remove_cap(struct ceph_cap *cap)
 	struct ceph_mds_session *session = cap->session;
 	struct ceph_inode_info *ci = cap->ci;
 	struct ceph_mds_client *mdsc = &ceph_client(ci->vfs_inode.i_sb)->mdsc;
+	int removed = 0;
 
 	dout("__ceph_remove_cap %p from %p\n", cap, &ci->vfs_inode);
 
-	/* remove from inode list */
-	rb_erase(&cap->ci_node, &ci->i_caps);
-	cap->ci = NULL;
-	if (ci->i_auth_cap == cap)
-		ci->i_auth_cap = NULL;
-
 	/* remove from session list */
 	spin_lock(&session->s_cap_lock);
 	if (session->s_cap_iterator == cap) {
@@ -885,10 +882,18 @@ void __ceph_remove_cap(struct ceph_cap *cap)
 		list_del_init(&cap->session_caps);
 		session->s_nr_caps--;
 		cap->session = NULL;
+		removed = 1;
 	}
+	/* protect backpointer with s_cap_lock: see iterate_session_caps */
+	cap->ci = NULL;
 	spin_unlock(&session->s_cap_lock);
 
-	if (cap->session == NULL)
+	/* remove from inode list */
+	rb_erase(&cap->ci_node, &ci->i_caps);
+	if (ci->i_auth_cap == cap)
+		ci->i_auth_cap = NULL;
+
+	if (removed)
 		ceph_put_cap(cap);
 
 	if (!__ceph_is_any_caps(ci) && ci->i_snap_realm) {

fs/ceph/inode.c

@@ -733,6 +733,10 @@ no_change:
 				__ceph_get_fmode(ci, cap_fmode);
 			spin_unlock(&inode->i_lock);
 		}
+	} else if (cap_fmode >= 0) {
+		pr_warning("mds issued no caps on %llx.%llx\n",
+			   ceph_vinop(inode));
+		__ceph_get_fmode(ci, cap_fmode);
 	}
 
 	/* update delegation info? */

fs/ceph/mds_client.c

@@ -736,9 +736,10 @@ static void cleanup_cap_releases(struct ceph_mds_session *session)
 }
 
 /*
- * Helper to safely iterate over all caps associated with a session.
+ * Helper to safely iterate over all caps associated with a session, with
+ * special care taken to handle a racing __ceph_remove_cap().
  *
- * caller must hold session s_mutex
+ * Caller must hold session s_mutex.
  */
 static int iterate_session_caps(struct ceph_mds_session *session,
 				 int (*cb)(struct inode *, struct ceph_cap *,
@@ -2136,7 +2137,7 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc, int mds)
 	struct ceph_mds_session *session = NULL;
 	struct ceph_msg *reply;
 	struct rb_node *p;
-	int err;
+	int err = -ENOMEM;
 	struct ceph_pagelist *pagelist;
 
 	pr_info("reconnect to recovering mds%d\n", mds);
@@ -2185,7 +2186,7 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc, int mds)
 		goto fail;
 	err = iterate_session_caps(session, encode_caps_cb, pagelist);
 	if (err < 0)
-		goto out;
+		goto fail;
 
 	/*
 	 * snaprealms.  we provide mds with the ino, seq (version), and
@@ -2213,28 +2214,31 @@ send:
 	reply->nr_pages = calc_pages_for(0, pagelist->length);
 	ceph_con_send(&session->s_con, reply);
 
-	if (session) {
-		session->s_state = CEPH_MDS_SESSION_OPEN;
-		__wake_requests(mdsc, &session->s_waiting);
-	}
+	session->s_state = CEPH_MDS_SESSION_OPEN;
+	mutex_unlock(&session->s_mutex);
+
+	mutex_lock(&mdsc->mutex);
+	__wake_requests(mdsc, &session->s_waiting);
+	mutex_unlock(&mdsc->mutex);
+
+	ceph_put_mds_session(session);
 
-out:
 	up_read(&mdsc->snap_rwsem);
-	if (session) {
-		mutex_unlock(&session->s_mutex);
-		ceph_put_mds_session(session);
-	}
 	mutex_lock(&mdsc->mutex);
 	return;
 
 fail:
 	ceph_msg_put(reply);
+	up_read(&mdsc->snap_rwsem);
+	mutex_unlock(&session->s_mutex);
+	ceph_put_mds_session(session);
 fail_nomsg:
 	ceph_pagelist_release(pagelist);
 	kfree(pagelist);
 fail_nopagelist:
-	pr_err("ENOMEM preparing reconnect for mds%d\n", mds);
-	goto out;
+	pr_err("error %d preparing reconnect for mds%d\n", err, mds);
+	mutex_lock(&mdsc->mutex);
+	return;
 }
 
 

fs/ceph/messenger.c

@@ -492,7 +492,14 @@ static void prepare_write_message(struct ceph_connection *con)
 		list_move_tail(&m->list_head, &con->out_sent);
 	}
 
-	m->hdr.seq = cpu_to_le64(++con->out_seq);
+	/*
+	 * only assign outgoing seq # if we haven't sent this message
+	 * yet.  if it is requeued, resend with it's original seq.
+	 */
+	if (m->needs_out_seq) {
+		m->hdr.seq = cpu_to_le64(++con->out_seq);
+		m->needs_out_seq = false;
+	}
 
 	dout("prepare_write_message %p seq %lld type %d len %d+%d+%d %d pgs\n",
 	     m, con->out_seq, le16_to_cpu(m->hdr.type),
@@ -1986,6 +1993,8 @@ void ceph_con_send(struct ceph_connection *con, struct ceph_msg *msg)
 
 	BUG_ON(msg->front.iov_len != le32_to_cpu(msg->hdr.front_len));
 
+	msg->needs_out_seq = true;
+
 	/* queue */
 	mutex_lock(&con->mutex);
 	BUG_ON(!list_empty(&msg->list_head));
@@ -2085,15 +2094,19 @@ struct ceph_msg *ceph_msg_new(int type, int front_len,
 	kref_init(&m->kref);
 	INIT_LIST_HEAD(&m->list_head);
 
+	m->hdr.tid = 0;
 	m->hdr.type = cpu_to_le16(type);
+	m->hdr.priority = cpu_to_le16(CEPH_MSG_PRIO_DEFAULT);
+	m->hdr.version = 0;
 	m->hdr.front_len = cpu_to_le32(front_len);
 	m->hdr.middle_len = 0;
 	m->hdr.data_len = cpu_to_le32(page_len);
 	m->hdr.data_off = cpu_to_le16(page_off);
-	m->hdr.priority = cpu_to_le16(CEPH_MSG_PRIO_DEFAULT);
+	m->hdr.reserved = 0;
 	m->footer.front_crc = 0;
 	m->footer.middle_crc = 0;
 	m->footer.data_crc = 0;
+	m->footer.flags = 0;
 	m->front_max = front_len;
 	m->front_is_vmalloc = false;
 	m->more_to_follow = false;

fs/ceph/messenger.h

@@ -86,6 +86,7 @@ struct ceph_msg {
 	struct kref kref;
 	bool front_is_vmalloc;
 	bool more_to_follow;
+	bool needs_out_seq;
 	int front_max;
 
 	struct ceph_msgpool *pool;

fs/ceph/osd_client.c

@@ -565,7 +565,8 @@ static int __map_osds(struct ceph_osd_client *osdc,
 {
 	struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base;
 	struct ceph_pg pgid;
-	int o = -1;
+	int acting[CEPH_PG_MAX_SIZE];
+	int o = -1, num = 0;
 	int err;
 
 	dout("map_osds %p tid %lld\n", req, req->r_tid);
@@ -576,10 +577,16 @@ static int __map_osds(struct ceph_osd_client *osdc,
 	pgid = reqhead->layout.ol_pgid;
 	req->r_pgid = pgid;
 
-	o = ceph_calc_pg_primary(osdc->osdmap, pgid);
+	err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting);
+	if (err > 0) {
+		o = acting[0];
+		num = err;
+	}
 
 	if ((req->r_osd && req->r_osd->o_osd == o &&
-	     req->r_sent >= req->r_osd->o_incarnation) ||
+	     req->r_sent >= req->r_osd->o_incarnation &&
+	     req->r_num_pg_osds == num &&
+	     memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) ||
 	    (req->r_osd == NULL && o == -1))
 		return 0;  /* no change */
 
@@ -587,6 +594,10 @@ static int __map_osds(struct ceph_osd_client *osdc,
 	     req->r_tid, le32_to_cpu(pgid.pool), le16_to_cpu(pgid.ps), o,
 	     req->r_osd ? req->r_osd->o_osd : -1);
 
+	/* record full pg acting set */
+	memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num);
+	req->r_num_pg_osds = num;
+
 	if (req->r_osd) {
 		__cancel_request(req);
 		list_del_init(&req->r_osd_item);
@@ -612,7 +623,7 @@ static int __map_osds(struct ceph_osd_client *osdc,
 		__remove_osd_from_lru(req->r_osd);
 		list_add(&req->r_osd_item, &req->r_osd->o_requests);
 	}
-	err = 1;   /* osd changed */
+	err = 1;   /* osd or pg changed */
 
 out:
 	return err;
@@ -779,16 +790,18 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
 	struct ceph_osd_request *req;
 	u64 tid;
 	int numops, object_len, flags;
+	s32 result;
 
 	tid = le64_to_cpu(msg->hdr.tid);
 	if (msg->front.iov_len < sizeof(*rhead))
 		goto bad;
 	numops = le32_to_cpu(rhead->num_ops);
 	object_len = le32_to_cpu(rhead->object_len);
+	result = le32_to_cpu(rhead->result);
 	if (msg->front.iov_len != sizeof(*rhead) + object_len +
 	    numops * sizeof(struct ceph_osd_op))
 		goto bad;
-	dout("handle_reply %p tid %llu\n", msg, tid);
+	dout("handle_reply %p tid %llu result %d\n", msg, tid, (int)result);
 
 	/* lookup */
 	mutex_lock(&osdc->request_mutex);
@@ -834,7 +847,8 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
 	dout("handle_reply tid %llu flags %d\n", tid, flags);
 
 	/* either this is a read, or we got the safe response */
-	if ((flags & CEPH_OSD_FLAG_ONDISK) ||
+	if (result < 0 ||
+	    (flags & CEPH_OSD_FLAG_ONDISK) ||
 	    ((flags & CEPH_OSD_FLAG_WRITE) == 0))
 		__unregister_request(osdc, req);
 

fs/ceph/osd_client.h

@@ -48,6 +48,8 @@ struct ceph_osd_request {
 	struct list_head r_osd_item;
 	struct ceph_osd *r_osd;
 	struct ceph_pg   r_pgid;
+	int              r_pg_osds[CEPH_PG_MAX_SIZE];
+	int              r_num_pg_osds;
 
 	struct ceph_connection *r_con_filling_msg;
 
@@ -66,7 +68,6 @@ struct ceph_osd_request {
 	struct list_head  r_unsafe_item;
 
 	struct inode *r_inode;         	      /* for use by callbacks */
-	struct writeback_control *r_wbc;      /* ditto */
 
 	char              r_oid[40];          /* object name */
 	int               r_oid_len;