diff options
Diffstat (limited to 'include')
131 files changed, 1176 insertions, 714 deletions
diff --git a/include/asm-alpha/thread_info.h b/include/asm-alpha/thread_info.h index fb318519629..15fda434442 100644 --- a/include/asm-alpha/thread_info.h +++ b/include/asm-alpha/thread_info.h @@ -50,10 +50,8 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define current_thread_info() __current_thread_info /* Thread information allocation. */ +#define THREAD_SIZE_ORDER 1 #define THREAD_SIZE (2*PAGE_SIZE) -#define alloc_thread_info(tsk) \ - ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) #endif /* __ASSEMBLY__ */ diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h index 7aaa206cb54..8382b7510f9 100644 --- a/include/asm-arm/ptrace.h +++ b/include/asm-arm/ptrace.h @@ -139,8 +139,6 @@ static inline int valid_user_regs(struct pt_regs *regs) return 0; } -#endif /* __KERNEL__ */ - #define pc_pointer(v) \ ((v) & ~PCMASK) @@ -153,10 +151,10 @@ extern unsigned long profile_pc(struct pt_regs *regs); #define profile_pc(regs) instruction_pointer(regs) #endif -#ifdef __KERNEL__ #define predicate(x) ((x) & 0xf0000000) #define PREDICATE_ALWAYS 0xe0000000 -#endif + +#endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h index f5a66478631..d4be2d64616 100644 --- a/include/asm-arm/thread_info.h +++ b/include/asm-arm/thread_info.h @@ -97,19 +97,6 @@ static inline struct thread_info *current_thread_info(void) return (struct thread_info *)(sp & ~(THREAD_SIZE - 1)); } -/* thread information allocation */ -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, \ - THREAD_SIZE_ORDER)) -#else -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER)) -#endif - -#define free_thread_info(info) \ - free_pages((unsigned long)info, THREAD_SIZE_ORDER); - #define thread_saved_pc(tsk) \ ((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc))) #define thread_saved_fp(tsk) \ diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h index df68631b7b2..294b25f9323 100644 --- a/include/asm-avr32/thread_info.h +++ b/include/asm-avr32/thread_info.h @@ -61,10 +61,6 @@ static inline struct thread_info *current_thread_info(void) return (struct thread_info *)addr; } -/* thread information allocation */ -#define alloc_thread_info(ti) \ - ((struct thread_info *) __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER)) -#define free_thread_info(ti) free_pages((unsigned long)(ti), 1) #define get_thread_info(ti) get_task_struct((ti)->task) #define put_thread_info(ti) put_task_struct((ti)->task) diff --git a/include/asm-blackfin/ptrace.h b/include/asm-blackfin/ptrace.h index b8346cd3a6f..a45a80e54ad 100644 --- a/include/asm-blackfin/ptrace.h +++ b/include/asm-blackfin/ptrace.h @@ -83,14 +83,14 @@ struct pt_regs { #define PTRACE_GETREGS 12 #define PTRACE_SETREGS 13 /* ptrace signal */ -#ifdef CONFIG_BINFMT_ELF_FDPIC #define PTRACE_GETFDPIC 31 #define PTRACE_GETFDPIC_EXEC 0 #define PTRACE_GETFDPIC_INTERP 1 -#endif #define PS_S (0x0002) +#ifdef __KERNEL__ + /* user_mode returns true if only one bit is set in IPEND, other than the master interrupt enable. */ #define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1))) @@ -98,6 +98,8 @@ struct pt_regs { #define profile_pc(regs) instruction_pointer(regs) extern void show_regs(struct pt_regs *); +#endif /* __KERNEL__ */ + #endif /* __ASSEMBLY__ */ /* diff --git a/include/asm-blackfin/thread_info.h b/include/asm-blackfin/thread_info.h index bc2fe5accf2..642769329d1 100644 --- a/include/asm-blackfin/thread_info.h +++ b/include/asm-blackfin/thread_info.h @@ -42,6 +42,7 @@ /* * Size of kernel stack for each process. This must be a power of 2... */ +#define THREAD_SIZE_ORDER 1 #define THREAD_SIZE 8192 /* 2 pages */ #ifndef __ASSEMBLY__ @@ -94,10 +95,6 @@ static inline struct thread_info *current_thread_info(void) return (struct thread_info *)((long)ti & ~((long)THREAD_SIZE-1)); } -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL, 1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) #endif /* __ASSEMBLY__ */ /* diff --git a/include/asm-cris/arch-v10/Kbuild b/include/asm-cris/arch-v10/Kbuild index 60e7e1b73ce..7a192e1290b 100644 --- a/include/asm-cris/arch-v10/Kbuild +++ b/include/asm-cris/arch-v10/Kbuild @@ -1,4 +1,3 @@ -header-y += ptrace.h header-y += user.h header-y += svinto.h header-y += sv_addr_ag.h diff --git a/include/asm-cris/arch-v10/ptrace.h b/include/asm-cris/arch-v10/ptrace.h index fb14c5ee37f..2f464eab3a5 100644 --- a/include/asm-cris/arch-v10/ptrace.h +++ b/include/asm-cris/arch-v10/ptrace.h @@ -106,10 +106,14 @@ struct switch_stack { unsigned long return_ip; /* ip that _resume will return to */ }; +#ifdef __KERNEL__ + /* bit 8 is user-mode flag */ #define user_mode(regs) (((regs)->dccr & 0x100) != 0) #define instruction_pointer(regs) ((regs)->irp) #define profile_pc(regs) instruction_pointer(regs) extern void show_regs(struct pt_regs *); +#endif /* __KERNEL__ */ + #endif diff --git a/include/asm-cris/arch-v32/Kbuild b/include/asm-cris/arch-v32/Kbuild index a0ec545e242..35f2fc4f993 100644 --- a/include/asm-cris/arch-v32/Kbuild +++ b/include/asm-cris/arch-v32/Kbuild @@ -1,3 +1,2 @@ -header-y += ptrace.h header-y += user.h header-y += cryptocop.h diff --git a/include/asm-cris/arch-v32/ptrace.h b/include/asm-cris/arch-v32/ptrace.h index 516cc7062d9..41f4e8662bc 100644 --- a/include/asm-cris/arch-v32/ptrace.h +++ b/include/asm-cris/arch-v32/ptrace.h @@ -106,9 +106,13 @@ struct switch_stack { unsigned long return_ip; /* ip that _resume will return to */ }; +#ifdef __KERNEL__ + #define user_mode(regs) (((regs)->ccs & (1 << (U_CCS_BITNR + CCS_SHIFT))) != 0) #define instruction_pointer(regs) ((regs)->erp) extern void show_regs(struct pt_regs *); #define profile_pc(regs) instruction_pointer(regs) +#endif /* __KERNEL__ */ + #endif diff --git a/include/asm-cris/ptrace.h b/include/asm-cris/ptrace.h index 1ec69a7ea83..d910925e317 100644 --- a/include/asm-cris/ptrace.h +++ b/include/asm-cris/ptrace.h @@ -4,11 +4,13 @@ #include <asm/arch/ptrace.h> #ifdef __KERNEL__ + /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ #define PTRACE_GETREGS 12 #define PTRACE_SETREGS 13 -#endif #define profile_pc(regs) instruction_pointer(regs) +#endif /* __KERNEL__ */ + #endif /* _CRIS_PTRACE_H */ diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h index 784668ab0fa..7efe1000f99 100644 --- a/include/asm-cris/thread_info.h +++ b/include/asm-cris/thread_info.h @@ -11,6 +11,8 @@ #ifdef __KERNEL__ +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + #ifndef __ASSEMBLY__ #include <asm/types.h> #include <asm/processor.h> diff --git a/include/asm-frv/Kbuild b/include/asm-frv/Kbuild index bc3f12c5b7e..0f8956def73 100644 --- a/include/asm-frv/Kbuild +++ b/include/asm-frv/Kbuild @@ -3,4 +3,3 @@ include include/asm-generic/Kbuild.asm header-y += registers.h unifdef-y += termios.h -unifdef-y += ptrace.h diff --git a/include/asm-frv/thread_info.h b/include/asm-frv/thread_info.h index 348b8f1df17..b7ac6bf2844 100644 --- a/include/asm-frv/thread_info.h +++ b/include/asm-frv/thread_info.h @@ -82,6 +82,8 @@ register struct thread_info *__current_thread_info asm("gr15"); #define current_thread_info() ({ __current_thread_info; }) +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE #define alloc_thread_info(tsk) \ diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 2632328d864..a3f738cffdb 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -34,9 +34,14 @@ struct bug_entry { #ifndef __WARN #ifndef __ASSEMBLY__ extern void warn_on_slowpath(const char *file, const int line); +extern void warn_slowpath(const char *file, const int line, + const char *fmt, ...) __attribute__((format(printf, 3, 4))); #define WANT_WARN_ON_SLOWPATH #endif #define __WARN() warn_on_slowpath(__FILE__, __LINE__) +#define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) +#else +#define __WARN_printf(arg...) __WARN() #endif #ifndef WARN_ON @@ -48,6 +53,15 @@ extern void warn_on_slowpath(const char *file, const int line); }) #endif +#ifndef WARN +#define WARN(condition, format...) ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + __WARN_printf(format); \ + unlikely(__ret_warn_on); \ +}) +#endif + #else /* !CONFIG_BUG */ #ifndef HAVE_ARCH_BUG #define BUG() @@ -63,6 +77,14 @@ extern void warn_on_slowpath(const char *file, const int line); unlikely(__ret_warn_on); \ }) #endif + +#ifndef WARN +#define WARN(condition, format...) ({ \ + int __ret_warn_on = !!(condition); \ + unlikely(__ret_warn_on); \ +}) +#endif + #endif #define WARN_ON_ONCE(condition) ({ \ @@ -75,6 +97,9 @@ extern void warn_on_slowpath(const char *file, const int line); unlikely(__ret_warn_once); \ }) +#define WARN_ON_RATELIMIT(condition, state) \ + WARN_ON((condition) && __ratelimit(state)) + #ifdef CONFIG_SMP # define WARN_ON_SMP(x) WARN_ON(x) #else diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 6be061d09da..a3034d20ebd 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -3,7 +3,7 @@ #include <linux/types.h> -#ifdef CONFIG_HAVE_GPIO_LIB +#ifdef CONFIG_GPIOLIB #include <linux/compiler.h> @@ -32,6 +32,8 @@ struct module; /** * struct gpio_chip - abstract a GPIO controller * @label: for diagnostics + * @dev: optional device providing the GPIOs + * @owner: helps prevent removal of modules exporting active GPIOs * @direction_input: configures signal "offset" as input, or returns error * @get: returns value for signal "offset"; for output signals this * returns either the value actually sensed, or zero @@ -59,6 +61,7 @@ struct module; */ struct gpio_chip { char *label; + struct device *dev; struct module *owner; int (*direction_input)(struct gpio_chip *chip, @@ -74,6 +77,7 @@ struct gpio_chip { int base; u16 ngpio; unsigned can_sleep:1; + unsigned exported:1; }; extern const char *gpiochip_is_requested(struct gpio_chip *chip, @@ -108,7 +112,18 @@ extern void __gpio_set_value(unsigned gpio, int value); extern int __gpio_cansleep(unsigned gpio); -#else +#ifdef CONFIG_GPIO_SYSFS + +/* + * A sysfs interface can be exported by individual drivers if they want, + * but more typically is configured entirely from userspace. + */ +extern int gpio_export(unsigned gpio, bool direction_may_change); +extern void gpio_unexport(unsigned gpio); + +#endif /* CONFIG_GPIO_SYSFS */ + +#else /* !CONFIG_HAVE_GPIO_LIB */ static inline int gpio_is_valid(int number) { @@ -137,6 +152,20 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value) gpio_set_value(gpio, value); } -#endif +#endif /* !CONFIG_HAVE_GPIO_LIB */ + +#ifndef CONFIG_GPIO_SYSFS + +/* sysfs support is only available with gpiolib, where it's optional */ + +static inline int gpio_export(unsigned gpio, bool direction_may_change) +{ + return -ENOSYS; +} + +static inline void gpio_unexport(unsigned gpio) +{ +} +#endif /* CONFIG_GPIO_SYSFS */ #endif /* _ASM_GENERIC_GPIO_H */ diff --git a/include/asm-generic/int-ll64.h b/include/asm-generic/int-ll64.h index 260948905e4..f9bc9ac29b3 100644 --- a/include/asm-generic/int-ll64.h +++ b/include/asm-generic/int-ll64.h @@ -26,7 +26,7 @@ typedef unsigned int __u32; #ifdef __GNUC__ __extension__ typedef __signed__ long long __s64; __extension__ typedef unsigned long long __u64; -#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L +#else typedef __signed__ long long __s64; typedef unsigned long long __u64; #endif diff --git a/include/asm-h8300/elf.h b/include/asm-h8300/elf.h index 26bfc7e641d..a8b57d1f412 100644 --- a/include/asm-h8300/elf.h +++ b/include/asm-h8300/elf.h @@ -26,10 +26,10 @@ typedef unsigned long elf_fpregset_t; #define ELF_DATA ELFDATA2MSB #define ELF_ARCH EM_H8_300 #if defined(__H8300H__) -#define ELF_FLAGS 0x810000 +#define ELF_CORE_EFLAGS 0x810000 #endif #if defined(__H8300S__) -#define ELF_FLAGS 0x820000 +#define ELF_CORE_EFLAGS 0x820000 #endif #define ELF_PLAT_INIT(_r) _r->er1 = 0 diff --git a/include/asm-h8300/thread_info.h b/include/asm-h8300/thread_info.h index 27bb95e2944..aafd4d322ec 100644 --- a/include/asm-h8300/thread_info.h +++ b/include/asm-h8300/thread_info.h @@ -49,6 +49,7 @@ struct thread_info { /* * Size of kernel stack for each process. This must be a power of 2... */ +#define THREAD_SIZE_ORDER 1 #define THREAD_SIZE 8192 /* 2 pages */ @@ -65,10 +66,6 @@ static inline struct thread_info *current_thread_info(void) return ti; } -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL, 1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) #endif /* __ASSEMBLY__ */ /* diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h index 2422ac61658..7c60fcdd2ef 100644 --- a/include/asm-ia64/thread_info.h +++ b/include/asm-ia64/thread_info.h @@ -54,6 +54,8 @@ struct thread_info { }, \ } +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + #ifndef ASM_OFFSETS_C /* how to get the thread information struct from C */ #define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE)) diff --git a/include/asm-m32r/thread_info.h b/include/asm-m32r/thread_info.h index 1effcd0f5e6..8589d462df2 100644 --- a/include/asm-m32r/thread_info.h +++ b/include/asm-m32r/thread_info.h @@ -94,6 +94,8 @@ static inline struct thread_info *current_thread_info(void) return ti; } +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE #define alloc_thread_info(tsk) \ diff --git a/include/asm-m68k/thread_info.h b/include/asm-m68k/thread_info.h index d635a375248..abc002798a2 100644 --- a/include/asm-m68k/thread_info.h +++ b/include/asm-m68k/thread_info.h @@ -25,13 +25,7 @@ struct thread_info { } /* THREAD_SIZE should be 8k, so handle differently for 4k and 8k machines */ -#if PAGE_SHIFT == 13 /* 8k machines */ -#define alloc_thread_info(tsk) ((struct thread_info *)__get_free_pages(GFP_KERNEL,0)) -#define free_thread_info(ti) free_pages((unsigned long)(ti),0) -#else /* otherwise assume 4k pages */ -#define alloc_thread_info(tsk) ((struct thread_info *)__get_free_pages(GFP_KERNEL,1)) -#define free_thread_info(ti) free_pages((unsigned long)(ti),1) -#endif /* PAGE_SHIFT == 13 */ +#define THREAD_SIZE_ORDER (13 - PAGE_SHIFT) #define init_thread_info (init_task.thread.info) #define init_stack (init_thread_union.stack) diff --git a/include/asm-m68knommu/ptrace.h b/include/asm-m68knommu/ptrace.h index 47258e86e8c..8c9194b9854 100644 --- a/include/asm-m68knommu/ptrace.h +++ b/include/asm-m68knommu/ptrace.h @@ -68,10 +68,8 @@ struct switch_stack { /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ #define PTRACE_GETREGS 12 #define PTRACE_SETREGS 13 -#ifdef CONFIG_FPU #define PTRACE_GETFPREGS 14 #define PTRACE_SETFPREGS 15 -#endif #ifdef __KERNEL__ diff --git a/include/asm-m68knommu/thread_info.h b/include/asm-m68knommu/thread_info.h index 95996d978be..0c9bc095f3f 100644 --- a/include/asm-m68knommu/thread_info.h +++ b/include/asm-m68knommu/thread_info.h @@ -71,10 +71,6 @@ static inline struct thread_info *current_thread_info(void) return ti; } -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_SIZE_ORDER) #endif /* __ASSEMBLY__ */ #define PREEMPT_ACTIVE 0x4000000 diff --git a/include/asm-mips/mach-generic/gpio.h b/include/asm-mips/mach-generic/gpio.h index e6b376bd9d0..b4e70208da6 100644 --- a/include/asm-mips/mach-generic/gpio.h +++ b/include/asm-mips/mach-generic/gpio.h @@ -1,7 +1,7 @@ #ifndef __ASM_MACH_GENERIC_GPIO_H #define __ASM_MACH_GENERIC_GPIO_H -#ifdef CONFIG_HAVE_GPIO_LIB +#ifdef CONFIG_GPIOLIB #define gpio_get_value __gpio_get_value #define gpio_set_value __gpio_set_value #define gpio_cansleep __gpio_cansleep diff --git a/include/asm-mips/thread_info.h b/include/asm-mips/thread_info.h index b2772df1a1b..bb3060699df 100644 --- a/include/asm-mips/thread_info.h +++ b/include/asm-mips/thread_info.h @@ -82,6 +82,8 @@ register struct thread_info *__current_thread_info __asm__("$28"); #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #define THREAD_MASK (THREAD_SIZE - 1UL) +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + #ifdef CONFIG_DEBUG_STACK_USAGE #define alloc_thread_info(tsk) \ ({ \ diff --git a/include/asm-mn10300/ptrace.h b/include/asm-mn10300/ptrace.h index b3684689fcc..7b06cc623d8 100644 --- a/include/asm-mn10300/ptrace.h +++ b/include/asm-mn10300/ptrace.h @@ -88,12 +88,16 @@ extern struct pt_regs *__frame; /* current frame pointer */ /* options set using PTRACE_SETOPTIONS */ #define PTRACE_O_TRACESYSGOOD 0x00000001 -#if defined(__KERNEL__) && !defined(__ASSEMBLY__) +#if defined(__KERNEL__) + +#if !defined(__ASSEMBLY__) #define user_mode(regs) (((regs)->epsw & EPSW_nSL) == EPSW_nSL) #define instruction_pointer(regs) ((regs)->pc) extern void show_regs(struct pt_regs *); -#endif +#endif /* !__ASSEMBLY */ #define profile_pc(regs) ((regs)->pc) +#endif /* __KERNEL__ */ + #endif /* _ASM_PTRACE_H */ diff --git a/include/asm-mn10300/thread_info.h b/include/asm-mn10300/thread_info.h index e397e719278..78a3881f3c1 100644 --- a/include/asm-mn10300/thread_info.h +++ b/include/asm-mn10300/thread_info.h @@ -112,6 +112,8 @@ static inline unsigned long current_stack_pointer(void) return sp; } +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE #define alloc_thread_info(tsk) kzalloc(THREAD_SIZE, GFP_KERNEL) diff --git a/include/asm-parisc/ptrace.h b/include/asm-parisc/ptrace.h index 93f990e418f..3e94c5d85ff 100644 --- a/include/asm-parisc/ptrace.h +++ b/include/asm-parisc/ptrace.h @@ -33,7 +33,6 @@ struct pt_regs { unsigned long ipsw; /* CR22 */ }; -#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS)) /* * The numbers chosen here are somewhat arbitrary but absolutely MUST * not overlap with any of the number assigned in <linux/ptrace.h>. @@ -43,8 +42,11 @@ struct pt_regs { * since we have taken branch traps too) */ #define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ + #ifdef __KERNEL__ +#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS)) + /* XXX should we use iaoq[1] or iaoq[0] ? */ #define user_mode(regs) (((regs)->iaoq[0] & 3) ? 1 : 0) #define user_space(regs) (((regs)->iasq[1] != 0) ? 1 : 0) diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h index 2d9c7500867..9f812741c35 100644 --- a/include/asm-parisc/thread_info.h +++ b/include/asm-parisc/thread_info.h @@ -34,15 +34,11 @@ struct thread_info { /* thread information allocation */ -#define THREAD_ORDER 2 +#define THREAD_SIZE_ORDER 2 /* Be sure to hunt all references to this down when you change the size of * the kernel stack */ -#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) -#define THREAD_SHIFT (PAGE_SHIFT + THREAD_ORDER) - -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL, THREAD_ORDER)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_ORDER) +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) +#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER) /* how to get the thread information struct from C */ #define current_thread_info() ((struct thread_info *)mfctl(30)) diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild index 04ce8f8a2ee..5ab7d7fe198 100644 --- a/include/asm-powerpc/Kbuild +++ b/include/asm-powerpc/Kbuild @@ -29,7 +29,6 @@ unifdef-y += elf.h unifdef-y += nvram.h unifdef-y += param.h unifdef-y += posix_types.h -unifdef-y += ptrace.h unifdef-y += seccomp.h unifdef-y += signal.h unifdef-y += spu_info.h diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h index 2a3e9075a5a..ef8a248dfd5 100644 --- a/include/asm-powerpc/cputable.h +++ b/include/asm-powerpc/cputable.h @@ -127,6 +127,8 @@ extern struct cpu_spec *identify_cpu(unsigned long offset, unsigned int pvr); extern void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end); +extern const char *powerpc_base_platform; + #endif /* __ASSEMBLY__ */ /* CPU kernel features */ diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h index 89664675b46..80d1f399ee5 100644 --- a/include/asm-powerpc/elf.h +++ b/include/asm-powerpc/elf.h @@ -217,6 +217,14 @@ typedef elf_vrregset_t elf_fpxregset_t; #define ELF_PLATFORM (cur_cpu_spec->platform) +/* While ELF_PLATFORM indicates the ISA supported by the platform, it + * may not accurately reflect the underlying behavior of the hardware + * (as in the case of running in Power5+ compatibility mode on a + * Power6 machine). ELF_BASE_PLATFORM allows ld.so to load libraries + * that are tuned for the real hardware. + */ +#define ELF_BASE_PLATFORM (powerpc_base_platform) + #ifdef __powerpc64__ # define ELF_PLAT_INIT(_r, load_addr) do { \ _r->gpr[2] = load_addr; \ diff --git a/include/asm-powerpc/firmware.h b/include/asm-powerpc/firmware.h index ef328995ba9..3a179827528 100644 --- a/include/asm-powerpc/firmware.h +++ b/include/asm-powerpc/firmware.h @@ -46,6 +46,7 @@ #define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000) #define FW_FEATURE_BEAT ASM_CONST(0x0000000001000000) #define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000002000000) +#define FW_FEATURE_CMO ASM_CONST(0x0000000004000000) #ifndef __ASSEMBLY__ @@ -58,7 +59,7 @@ enum { FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ | FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN | FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE | - FW_FEATURE_SPLPAR | FW_FEATURE_LPAR, + FW_FEATURE_SPLPAR | FW_FEATURE_LPAR | FW_FEATURE_CMO, FW_FEATURE_PSERIES_ALWAYS = 0, FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR, FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR, diff --git a/include/asm-powerpc/gpio.h b/include/asm-powerpc/gpio.h index 77ad3a890f3..ea04632399d 100644 --- a/include/asm-powerpc/gpio.h +++ b/include/asm-powerpc/gpio.h @@ -17,7 +17,7 @@ #include <linux/errno.h> #include <asm-generic/gpio.h> -#ifdef CONFIG_HAVE_GPIO_LIB +#ifdef CONFIG_GPIOLIB /* * We don't (yet) implement inlined/rapid versions for on-chip gpios. @@ -51,6 +51,6 @@ static inline int irq_to_gpio(unsigned int irq) return -EINVAL; } -#endif /* CONFIG_HAVE_GPIO_LIB */ +#endif /* CONFIG_GPIOLIB */ #endif /* __ASM_POWERPC_GPIO_H */ diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h index bf6cd7cb996..fbe2932fa9e 100644 --- a/include/asm-powerpc/hvcall.h +++ b/include/asm-powerpc/hvcall.h @@ -92,6 +92,11 @@ #define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */ #define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in the pte if the valid bit is set */ #define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */ +#define H_PAGE_STATE_CHANGE (1UL<<(63-28)) +#define H_PAGE_UNUSED ((1UL<<(63-29)) | (1UL<<(63-30))) +#define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED) +#define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1UL<<(63-31))) +#define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE #define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */ #define H_ANDCOND (1UL<<(63-33)) #define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO pages) */ @@ -210,7 +215,9 @@ #define H_JOIN 0x298 #define H_VASI_STATE 0x2A4 #define H_ENABLE_CRQ 0x2B0 -#define MAX_HCALL_OPCODE H_ENABLE_CRQ +#define H_SET_MPP 0x2D0 +#define H_GET_MPP 0x2D4 +#define MAX_HCALL_OPCODE H_GET_MPP #ifndef __ASSEMBLY__ @@ -270,6 +277,20 @@ struct hcall_stats { }; #define HCALL_STAT_ARRAY_SIZE ((MAX_HCALL_OPCODE >> 2) + 1) +struct hvcall_mpp_data { + unsigned long entitled_mem; + unsigned long mapped_mem; + unsigned short group_num; + unsigned short pool_num; + unsigned char mem_weight; + unsigned char unallocated_mem_weight; + unsigned long unallocated_entitlement; /* value in bytes */ + unsigned long pool_size; + signed long loan_request; + unsigned long backing_mem; +}; + +int h_get_mpp(struct hvcall_mpp_data *); #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_HVCALL_H */ diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h index 567ed92cd91..2fe268b1033 100644 --- a/include/asm-powerpc/lppaca.h +++ b/include/asm-powerpc/lppaca.h @@ -125,7 +125,10 @@ struct lppaca { // NOTE: This value will ALWAYS be zero for dedicated processors and // will NEVER be zero for shared processors (ie, initialized to a 1). volatile u32 yield_count; // PLIC increments each dispatchx00-x03 - u8 reserved6[124]; // Reserved x04-x7F + u32 reserved6; + volatile u64 cmo_faults; // CMO page fault count x08-x0F + volatile u64 cmo_fault_time; // CMO page fault time x10-x17 + u8 reserved7[104]; // Reserved x18-x7F //============================================================================= // CACHE_LINE_4-5 0x0180 - 0x027F Contains PMC interrupt data diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h index 1233d735fd2..893aafd87fd 100644 --- a/include/asm-powerpc/machdep.h +++ b/include/asm-powerpc/machdep.h @@ -76,7 +76,7 @@ struct machdep_calls { * destroyed as well */ void (*hpte_clear_all)(void); - void (*tce_build)(struct iommu_table * tbl, + int (*tce_build)(struct iommu_table *tbl, long index, long npages, unsigned long uaddr, diff --git a/include/asm-powerpc/mpc52xx_psc.h b/include/asm-powerpc/mpc52xx_psc.h index 710c5d36efa..8917ed63056 100644 --- a/include/asm-powerpc/mpc52xx_psc.h +++ b/include/asm-powerpc/mpc52xx_psc.h @@ -60,10 +60,12 @@ #define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002 #define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001 -/* PSC interrupt mask bits */ +/* PSC interrupt status/mask bits */ #define MPC52xx_PSC_IMR_TXRDY 0x0100 #define MPC52xx_PSC_IMR_RXRDY 0x0200 #define MPC52xx_PSC_IMR_DB 0x0400 +#define MPC52xx_PSC_IMR_TXEMP 0x0800 +#define MPC52xx_PSC_IMR_ORERR 0x1000 #define MPC52xx_PSC_IMR_IPC 0x8000 /* PSC input port change bit */ @@ -92,6 +94,34 @@ #define MPC52xx_PSC_RFNUM_MASK 0x01ff +#define MPC52xx_PSC_SICR_DTS1 (1 << 29) +#define MPC52xx_PSC_SICR_SHDR (1 << 28) +#define MPC52xx_PSC_SICR_SIM_MASK (0xf << 24) +#define MPC52xx_PSC_SICR_SIM_UART (0x0 << 24) +#define MPC52xx_PSC_SICR_SIM_UART_DCD (0x8 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_8 (0x1 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_16 (0x2 << 24) +#define MPC52xx_PSC_SICR_SIM_AC97 (0x3 << 24) +#define MPC52xx_PSC_SICR_SIM_SIR (0x8 << 24) +#define MPC52xx_PSC_SICR_SIM_SIR_DCD (0xc << 24) +#define MPC52xx_PSC_SICR_SIM_MIR (0x5 << 24) +#define MPC52xx_PSC_SICR_SIM_FIR (0x6 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_24 (0x7 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_32 (0xf << 24) +#define MPC52xx_PSC_SICR_GENCLK (1 << 23) +#define MPC52xx_PSC_SICR_I2S (1 << 22) +#define MPC52xx_PSC_SICR_CLKPOL (1 << 21) +#define MPC52xx_PSC_SICR_SYNCPOL (1 << 20) +#define MPC52xx_PSC_SICR_CELLSLAVE (1 << 19) +#define MPC52xx_PSC_SICR_CELL2XCLK (1 << 18) +#define MPC52xx_PSC_SICR_ESAI (1 << 17) +#define MPC52xx_PSC_SICR_ENAC97 (1 << 16) +#define MPC52xx_PSC_SICR_SPI (1 << 15) +#define MPC52xx_PSC_SICR_MSTR (1 << 14) +#define MPC52xx_PSC_SICR_CPOL (1 << 13) +#define MPC52xx_PSC_SICR_CPHA (1 << 12) +#define MPC52xx_PSC_SICR_USEEOF (1 << 11) +#define MPC52xx_PSC_SICR_DISABLEEOF (1 << 10) /* Structure of the hardware registers */ struct mpc52xx_psc { @@ -132,8 +162,12 @@ struct mpc52xx_psc { u8 reserved5[3]; u8 ctlr; /* PSC + 0x1c */ u8 reserved6[3]; - u16 ccr; /* PSC + 0x20 */ - u8 reserved7[14]; + /* BitClkDiv field of CCR is byte swapped in + * the hardware for mpc5200/b compatibility */ + u32 ccr; /* PSC + 0x20 */ + u32 ac97_slots; /* PSC + 0x24 */ + u32 ac97_cmd; /* PSC + 0x28 */ + u32 ac97_data; /* PSC + 0x2c */ u8 ivr; /* PSC + 0x30 */ u8 reserved8[3]; u8 ip; /* PSC + 0x34 */ diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h index d18ffe7bc7c..dbb8ca172e4 100644 --- a/include/asm-powerpc/pgtable.h +++ b/include/asm-powerpc/pgtable.h @@ -38,6 +38,19 @@ extern void paging_init(void); remap_pfn_range(vma, vaddr, pfn, size, prot) #include <asm-generic/pgtable.h> + + +/* + * This gets called at the end of handling a page fault, when + * the kernel has put a new PTE into the page table for the process. + * We use it to ensure coherency between the i-cache and d-cache + * for the page which has just been mapped in. + * On machines which use an MMU hash table, we use this to put a + * corresponding HPTE into the hash table ahead of time, instead of + * waiting for the inevitable extra hash-table miss exception. + */ +extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t); + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-powerpc/syscalls.h b/include/asm-powerpc/syscalls.h index 2b8a458f990..eb8eb400c66 100644 --- a/include/asm-powerpc/syscalls.h +++ b/include/asm-powerpc/syscalls.h @@ -31,6 +31,7 @@ asmlinkage int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3, unsigned long p4, unsigned long p5, unsigned long p6, struct pt_regs *regs); asmlinkage long sys_pipe(int __user *fildes); +asmlinkage long sys_pipe2(int __user *fildes, int flags); asmlinkage long sys_rt_sigaction(int sig, const struct sigaction __user *act, struct sigaction __user *oact, size_t sigsetsize); diff --git a/include/asm-powerpc/systbl.h b/include/asm-powerpc/systbl.h index ae7085c6569..e084272ed1c 100644 --- a/include/asm-powerpc/systbl.h +++ b/include/asm-powerpc/systbl.h @@ -316,3 +316,9 @@ COMPAT_SYS(fallocate) SYSCALL(subpage_prot) COMPAT_SYS_SPU(timerfd_settime) COMPAT_SYS_SPU(timerfd_gettime) +COMPAT_SYS_SPU(signalfd4) +SYSCALL_SPU(eventfd2) +SYSCALL_SPU(epoll_create1) +SYSCALL_SPU(dup3) +SYSCALL_SPU(pipe2) +SYSCALL(inotify_init1) diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h index e6e25e2364e..d6648c14332 100644 --- a/include/asm-powerpc/system.h +++ b/include/asm-powerpc/system.h @@ -110,6 +110,8 @@ static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } #endif extern int set_dabr(unsigned long dabr); +extern void do_dabr(struct pt_regs *regs, unsigned long address, + unsigned long error_code); extern void print_backtrace(unsigned long *); extern void show_regs(struct pt_regs * regs); extern void flush_instruction_cache(void); diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h index b705c2a7651..a9db562df69 100644 --- a/include/asm-powerpc/thread_info.h +++ b/include/asm-powerpc/thread_info.h @@ -66,20 +66,12 @@ struct thread_info { #if THREAD_SHIFT >= PAGE_SHIFT -#define THREAD_ORDER (THREAD_SHIFT - PAGE_SHIFT) - -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(GFP_KERNEL | \ - __GFP_ZERO, THREAD_ORDER)) -#else -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(GFP_KERNEL, THREAD_ORDER)) -#endif -#define free_thread_info(ti) free_pages((unsigned long)ti, THREAD_ORDER) +#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) #else /* THREAD_SHIFT < PAGE_SHIFT */ +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + extern struct thread_info *alloc_thread_info(struct task_struct *tsk); extern void free_thread_info(struct thread_info *ti); diff --git a/include/asm-powerpc/tlbflush.h b/include/asm-powerpc/tlbflush.h index 5c910814764..361cd5c7a32 100644 --- a/include/asm-powerpc/tlbflush.h +++ b/include/asm-powerpc/tlbflush.h @@ -162,16 +162,5 @@ extern void __flush_hash_table_range(struct mm_struct *mm, unsigned long start, #endif -/* - * This gets called at the end of handling a page fault, when - * the kernel has put a new PTE into the page table for the process. - * We use it to ensure coherency between the i-cache and d-cache - * for the page which has just been mapped in. - * On machines which use an MMU hash table, we use this to put a - * corresponding HPTE into the hash table ahead of time, instead of - * waiting for the inevitable extra hash-table miss exception. - */ -extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t); - #endif /*__KERNEL__ */ #endif /* _ASM_POWERPC_TLBFLUSH_H */ diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h index ce91bb66206..e07d0c76ed7 100644 --- a/include/asm-powerpc/unistd.h +++ b/include/asm-powerpc/unistd.h @@ -335,10 +335,16 @@ #define __NR_subpage_prot 310 #define __NR_timerfd_settime 311 #define __NR_timerfd_gettime 312 +#define __NR_signalfd4 313 +#define __NR_eventfd2 314 +#define __NR_epoll_create1 315 +#define __NR_dup3 316 +#define __NR_pipe2 317 +#define __NR_inotify_init1 318 #ifdef __KERNEL__ -#define __NR_syscalls 313 +#define __NR_syscalls 319 #define __NR__exit __NR_exit #define NR_syscalls __NR_syscalls diff --git a/include/asm-powerpc/vio.h b/include/asm-powerpc/vio.h index 56512a968da..0a290a19594 100644 --- a/include/asm-powerpc/vio.h +++ b/include/asm-powerpc/vio.h @@ -39,16 +39,32 @@ #define VIO_IRQ_DISABLE 0UL #define VIO_IRQ_ENABLE 1UL +/* + * VIO CMO minimum entitlement for all devices and spare entitlement + */ +#define VIO_CMO_MIN_ENT 1562624 + struct iommu_table; -/* - * The vio_dev structure is used to describe virtual I/O devices. +/** + * vio_dev - This structure is used to describe virtual I/O devices. + * + * @desired: set from return of driver's get_desired_dma() function + * @entitled: bytes of IO data that has been reserved for this device. + * @allocated: bytes of IO data currently in use by the device. + * @allocs_failed: number of DMA failures due to insufficient entitlement. */ struct vio_dev { const char *name; const char *type; uint32_t unit_address; unsigned int irq; + struct { + size_t desired; + size_t entitled; + size_t allocated; + atomic_t allocs_failed; + } cmo; struct device dev; }; @@ -56,12 +72,19 @@ struct vio_driver { const struct vio_device_id *id_table; int (*probe)(struct vio_dev *dev, const struct vio_device_id *id); int (*remove)(struct vio_dev *dev); + /* A driver must have a get_desired_dma() function to + * be loaded in a CMO environment if it uses DMA. + */ + unsigned long (*get_desired_dma)(struct vio_dev *dev); struct device_driver driver; }; extern int vio_register_driver(struct vio_driver *drv); extern void vio_unregister_driver(struct vio_driver *drv); +extern int vio_cmo_entitlement_update(size_t); +extern void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired); + extern void __devinit vio_unregister_device(struct vio_dev *dev); struct device_node; diff --git a/include/asm-s390/kvm_virtio.h b/include/asm-s390/kvm_virtio.h index 5c871a990c2..146100224de 100644 --- a/include/asm-s390/kvm_virtio.h +++ b/include/asm-s390/kvm_virtio.h @@ -50,4 +50,14 @@ struct kvm_vqconfig { #define KVM_S390_VIRTIO_RESET 1 #define KVM_S390_VIRTIO_SET_STATUS 2 +#ifdef __KERNEL__ +/* early virtio console setup */ +#ifdef CONFIG_VIRTIO_CONSOLE +extern void s390_virtio_console_init(void); +#else +static inline void s390_virtio_console_init(void) +{ +} +#endif /* CONFIG_VIRTIO_CONSOLE */ +#endif /* __KERNEL__ */ #endif diff --git a/include/asm-s390/thread_info.h b/include/asm-s390/thread_info.h index 99bbed99a3b..91a8f93ad35 100644 --- a/include/asm-s390/thread_info.h +++ b/include/asm-s390/thread_info.h @@ -78,10 +78,7 @@ static inline struct thread_info *current_thread_info(void) return (struct thread_info *)((*(unsigned long *) __LC_KERNEL_STACK)-THREAD_SIZE); } -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL,THREAD_ORDER)) -#define free_thread_info(ti) free_pages((unsigned long) (ti),THREAD_ORDER) +#define THREAD_SIZE_ORDER THREAD_ORDER #endif diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h index 8d6c92b3e77..7d36dc3bee6 100644 --- a/include/asm-sh/ptrace.h +++ b/include/asm-sh/ptrace.h @@ -5,7 +5,7 @@ * Copyright (C) 1999, 2000 Niibe Yutaka * */ -#if defined(__SH5__) || defined(CONFIG_SUPERH64) +#if defined(__SH5__) struct pt_regs { unsigned long long pc; unsigned long long sr; diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index c50e5d35fe8..5131e390752 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -92,6 +92,8 @@ static inline struct thread_info *current_thread_info(void) return ti; } +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE #define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL) diff --git a/include/asm-sparc/thread_info_32.h b/include/asm-sparc/thread_info_32.h index 91b9f5888c8..2cf9db04405 100644 --- a/include/asm-sparc/thread_info_32.h +++ b/include/asm-sparc/thread_info_32.h @@ -86,6 +86,8 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define THREAD_INFO_ORDER 1 #endif +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void) #define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)() diff --git a/include/asm-sparc/thread_info_64.h b/include/asm-sparc/thread_info_64.h index c6d2e6c7f84..960969d5ad0 100644 --- a/include/asm-sparc/thread_info_64.h +++ b/include/asm-sparc/thread_info_64.h @@ -155,6 +155,8 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define __THREAD_INFO_ORDER 0 #endif /* PAGE_SHIFT == 13 */ +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + #ifdef CONFIG_DEBUG_STACK_USAGE #define alloc_thread_info(tsk) \ ({ \ diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h index 356b83e2c22..e07e72846c7 100644 --- a/include/asm-um/thread_info.h +++ b/include/asm-um/thread_info.h @@ -53,21 +53,7 @@ static inline struct thread_info *current_thread_info(void) return ti; } -#ifdef CONFIG_DEBUG_STACK_USAGE - -#define alloc_thread_info(tsk) \ - ((struct thread_info *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, \ - CONFIG_KERNEL_STACK_ORDER)) -#else - -/* thread information allocation */ -#define alloc_thread_info(tsk) \ - ((struct thread_info *) __get_free_pages(GFP_KERNEL, \ - CONFIG_KERNEL_STACK_ORDER)) -#endif - -#define free_thread_info(ti) \ - free_pages((unsigned long)(ti),CONFIG_KERNEL_STACK_ORDER) +#define THREAD_SIZE_ORDER CONFIG_KERNEL_STACK_ORDER #endif diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild index 811e9828ccb..4a8e80cdcfa 100644 --- a/include/asm-x86/Kbuild +++ b/include/asm-x86/Kbuild @@ -18,7 +18,6 @@ unifdef-y += msr.h unifdef-y += mtrr.h unifdef-y += posix_types_32.h unifdef-y += posix_types_64.h -unifdef-y += ptrace.h unifdef-y += unistd_32.h unifdef-y += unistd_64.h unifdef-y += vm86.h diff --git a/include/asm-x86/gpio.h b/include/asm-x86/gpio.h index ff87fca0caf..116e9147fe6 100644 --- a/include/asm-x86/gpio.h +++ b/include/asm-x86/gpio.h @@ -1,6 +1,62 @@ +/* + * Generic GPIO API implementation for x86. + * + * Derived from the generic GPIO API for powerpc: + * + * Copyright (c) 2007-2008 MontaVista Software, Inc. + * + * Author: Anton Vorontsov <avorontsov@ru.mvista.com> + * + * 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 Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + #ifndef _ASM_I386_GPIO_H #define _ASM_I386_GPIO_H +#ifdef CONFIG_X86_RDC321X #include <gpio.h> +#else /* CONFIG_X86_RDC321X */ + +#include <asm-generic/gpio.h> + +#ifdef CONFIG_GPIOLIB + +/* + * Just call gpiolib. + */ +static inline int gpio_get_value(unsigned int gpio) +{ + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned int gpio, int value) +{ + __gpio_set_value(gpio, value); +} + +static inline int gpio_cansleep(unsigned int gpio) +{ + return __gpio_cansleep(gpio); +} + +/* + * Not implemented, yet. + */ +static inline int gpio_to_irq(unsigned int gpio) +{ + return -ENOSYS; +} + +static inline int irq_to_gpio(unsigned int irq) +{ + return -EINVAL; +} + +#endif /* CONFIG_GPIOLIB */ + +#endif /* CONFIG_X86_RDC321X */ #endif /* _ASM_I386_GPIO_H */ diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index 3f2de105098..da0a675adf9 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -152,6 +152,8 @@ struct thread_info { #define THREAD_FLAGS GFP_KERNEL #endif +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + #define alloc_thread_info(tsk) \ ((struct thread_info *)__get_free_pages(THREAD_FLAGS, THREAD_ORDER)) diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h index 422c73e2693..089b0db4481 100644 --- a/include/asm-xtensa/ptrace.h +++ b/include/asm-xtensa/ptrace.h @@ -73,10 +73,10 @@ #define PTRACE_GETXTREGS 18 #define PTRACE_SETXTREGS 19 -#ifndef __ASSEMBLY__ - #ifdef __KERNEL__ +#ifndef __ASSEMBLY__ + /* * This struct defines the way the registers are stored on the * kernel stack during a system call or other kernel entry. @@ -122,14 +122,14 @@ extern void show_regs(struct pt_regs *); # ifndef CONFIG_SMP # define profile_pc(regs) instruction_pointer(regs) # endif -#endif /* __KERNEL__ */ #else /* __ASSEMBLY__ */ -#ifdef __KERNEL__ # include <asm/asm-offsets.h> #define PT_REGS_OFFSET (KERNEL_STACK_SIZE - PT_USER_SIZE) -#endif #endif /* !__ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + #endif /* _XTENSA_PTRACE_H */ diff --git a/include/asm-xtensa/thread_info.h b/include/asm-xtensa/thread_info.h index a2c640682ed..7e4131dd546 100644 --- a/include/asm-xtensa/thread_info.h +++ b/include/asm-xtensa/thread_info.h @@ -111,10 +111,6 @@ static inline struct thread_info *current_thread_info(void) return ti; } -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) - #else /* !__ASSEMBLY__ */ /* how to get the thread information struct from ASM */ @@ -160,6 +156,7 @@ static inline struct thread_info *current_thread_info(void) #define TS_USEDFPU 0x0001 /* FPU was used by this task this quantum (SMP) */ #define THREAD_SIZE 8192 //(2*PAGE_SIZE) +#define THREAD_SIZE_ORDER 1 #endif /* __KERNEL__ */ #endif /* _XTENSA_THREAD_INFO */ diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 402c8f55d71..4c4142c5aa6 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -189,7 +189,6 @@ unifdef-y += connector.h unifdef-y += cuda.h unifdef-y += cyclades.h unifdef-y += dccp.h -unifdef-y += dirent.h unifdef-y += dlm.h unifdef-y += dlm_plock.h unifdef-y += edd.h diff --git a/include/linux/acct.h b/include/linux/acct.h index e8cae54e8d8..882dc724876 100644 --- a/include/linux/acct.h +++ b/include/linux/acct.h @@ -120,17 +120,20 @@ struct acct_v3 struct vfsmount; struct super_block; struct pacct_struct; +struct pid_namespace; extern void acct_auto_close_mnt(struct vfsmount *m); extern void acct_auto_close(struct super_block *sb); extern void acct_init_pacct(struct pacct_struct *pacct); extern void acct_collect(long exitcode, int group_dead); extern void acct_process(void); +extern void acct_exit_ns(struct pid_namespace *); #else #define acct_auto_close_mnt(x) do { } while (0) #define acct_auto_close(x) do { } while (0) #define acct_init_pacct(x) do { } while (0) #define acct_collect(x,y) do { } while (0) #define acct_process() do { } while (0) +#define acct_exit_ns(ns) do { } while (0) #endif /* diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h index 0da17d14fd1..d7afa9dd663 100644 --- a/include/linux/auxvec.h +++ b/include/linux/auxvec.h @@ -26,9 +26,13 @@ #define AT_SECURE 23 /* secure mode boolean */ +#define AT_BASE_PLATFORM 24 /* string identifying real platform, may + * differ from AT_PLATFORM. */ + #define AT_EXECFN 31 /* filename of program */ + #ifdef __KERNEL__ -#define AT_VECTOR_SIZE_BASE 17 /* NEW_AUX_ENT entries in auxiliary table */ +#define AT_VECTOR_SIZE_BASE 18 /* NEW_AUX_ENT entries in auxiliary table */ /* number of "#define AT_.*" above, minus {AT_NULL, AT_IGNORE, AT_NOTELF} */ #endif diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 4ddf2922fc8..652470b687c 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -103,17 +103,16 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, __alloc_bootmem(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages(x) \ __alloc_bootmem_low(x, PAGE_SIZE, 0) -#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ - -extern int reserve_bootmem_generic(unsigned long addr, unsigned long size, - int flags); - #define alloc_bootmem_node(pgdat, x) \ __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_pages_node(pgdat, x) \ __alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages_node(pgdat, x) \ __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0) +#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ + +extern int reserve_bootmem_generic(unsigned long addr, unsigned long size, + int flags); extern void *alloc_bootmem_section(unsigned long size, unsigned long section_nr); diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h index 961ed4b48d8..44f95b92393 100644 --- a/include/linux/byteorder/big_endian.h +++ b/include/linux/byteorder/big_endian.h @@ -94,12 +94,12 @@ static inline __u16 __be16_to_cpup(const __be16 *p) #define __le32_to_cpus(x) __swab32s((x)) #define __cpu_to_le16s(x) __swab16s((x)) #define __le16_to_cpus(x) __swab16s((x)) -#define __cpu_to_be64s(x) do {} while (0) -#define __be64_to_cpus(x) do {} while (0) -#define __cpu_to_be32s(x) do {} while (0) -#define __be32_to_cpus(x) do {} while (0) -#define __cpu_to_be16s(x) do {} while (0) -#define __be16_to_cpus(x) do {} while (0) +#define __cpu_to_be64s(x) do { (void)(x); } while (0) +#define __be64_to_cpus(x) do { (void)(x); } while (0) +#define __cpu_to_be32s(x) do { (void)(x); } while (0) +#define __be32_to_cpus(x) do { (void)(x); } while (0) +#define __cpu_to_be16s(x) do { (void)(x); } while (0) +#define __be16_to_cpus(x) do { (void)(x); } while (0) #ifdef __KERNEL__ #include <linux/byteorder/generic.h> diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h index 05dc7c35b3b..4cc170a3176 100644 --- a/include/linux/byteorder/little_endian.h +++ b/include/linux/byteorder/little_endian.h @@ -88,12 +88,12 @@ static inline __u16 __be16_to_cpup(const __be16 *p) { return __swab16p((__u16 *)p); } -#define __cpu_to_le64s(x) do {} while (0) -#define __le64_to_cpus(x) do {} while (0) -#define __cpu_to_le32s(x) do {} while (0) -#define __le32_to_cpus(x) do {} while (0) -#define __cpu_to_le16s(x) do {} while (0) -#define __le16_to_cpus(x) do {} while (0) +#define __cpu_to_le64s(x) do { (void)(x); } while (0) +#define __le64_to_cpus(x) do { (void)(x); } while (0) +#define __cpu_to_le32s(x) do { (void)(x); } while (0) +#define __le32_to_cpus(x) do { (void)(x); } while (0) +#define __cpu_to_le16s(x) do { (void)(x); } while (0) +#define __le16_to_cpus(x) do { (void)(x); } while (0) #define __cpu_to_be64s(x) __swab64s((x)) #define __be64_to_cpus(x) __swab64s((x)) #define __cpu_to_be32s(x) __swab32s((x)) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index e155aa78d85..c98dd7cb707 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -21,11 +21,13 @@ struct cgroupfs_root; struct cgroup_subsys; struct inode; +struct cgroup; extern int cgroup_init_early(void); extern int cgroup_init(void); extern void cgroup_init_smp(void); extern void cgroup_lock(void); +extern bool cgroup_lock_live_group(struct cgroup *cgrp); extern void cgroup_unlock(void); extern void cgroup_fork(struct task_struct *p); extern void cgroup_fork_callbacks(struct task_struct *p); @@ -205,50 +207,64 @@ struct cftype { * subsystem, followed by a period */ char name[MAX_CFTYPE_NAME]; int private; - int (*open) (struct inode *inode, struct file *file); - ssize_t (*read) (struct cgroup *cgrp, struct cftype *cft, - struct file *file, - char __user *buf, size_t nbytes, loff_t *ppos); + + /* + * If non-zero, defines the maximum length of string that can + * be passed to write_string; defaults to 64 + */ + size_t max_write_len; + + int (*open)(struct inode *inode, struct file *file); + ssize_t (*read)(struct cgroup *cgrp, struct cftype *cft, + struct file *file, + char __user *buf, size_t nbytes, loff_t *ppos); /* * read_u64() is a shortcut for the common case of returning a * single integer. Use it in place of read() */ - u64 (*read_u64) (struct cgroup *cgrp, struct cftype *cft); + u64 (*read_u64)(struct cgroup *cgrp, struct cftype *cft); /* * read_s64() is a signed version of read_u64() */ - s64 (*read_s64) (struct cgroup *cgrp, struct cftype *cft); + s64 (*read_s64)(struct cgroup *cgrp, struct cftype *cft); /* * read_map() is used for defining a map of key/value * pairs. It should call cb->fill(cb, key, value) for each * entry. The key/value pairs (and their ordering) should not * change between reboots. */ - int (*read_map) (struct cgroup *cont, struct cftype *cft, - struct cgroup_map_cb *cb); + int (*read_map)(struct cgroup *cont, struct cftype *cft, + struct cgroup_map_cb *cb); /* * read_seq_string() is used for outputting a simple sequence * using seqfile. */ - int (*read_seq_string) (struct cgroup *cont, struct cftype *cft, - struct seq_file *m); + int (*read_seq_string)(struct cgroup *cont, struct cftype *cft, + struct seq_file *m); - ssize_t (*write) (struct cgroup *cgrp, struct cftype *cft, - struct file *file, - const char __user *buf, size_t nbytes, loff_t *ppos); + ssize_t (*write)(struct cgroup *cgrp, struct cftype *cft, + struct file *file, + const char __user *buf, size_t nbytes, loff_t *ppos); /* * write_u64() is a shortcut for the common case of accepting * a single integer (as parsed by simple_strtoull) from * userspace. Use in place of write(); return 0 or error. */ - int (*write_u64) (struct cgroup *cgrp, struct cftype *cft, u64 val); + int (*write_u64)(struct cgroup *cgrp, struct cftype *cft, u64 val); /* * write_s64() is a signed version of write_u64() */ - int (*write_s64) (struct cgroup *cgrp, struct cftype *cft, s64 val); + int (*write_s64)(struct cgroup *cgrp, struct cftype *cft, s64 val); /* + * write_string() is passed a nul-terminated kernelspace + * buffer of maximum length determined by max_write_len. + * Returns 0 or -ve error code. + */ + int (*write_string)(struct cgroup *cgrp, struct cftype *cft, + const char *buffer); + /* * trigger() callback can be used to get some kick from the * userspace, when the actual string written is not important * at all. The private field can be used to determine the @@ -256,7 +272,7 @@ struct cftype { */ int (*trigger)(struct cgroup *cgrp, unsigned int event); - int (*release) (struct inode *inode, struct file *file); + int (*release)(struct inode *inode, struct file *file); }; struct cgroup_scanner { @@ -348,7 +364,8 @@ static inline struct cgroup* task_cgroup(struct task_struct *task, return task_subsys_state(task, subsys_id)->cgroup; } -int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *ss); +int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *ss, + char *nodename); /* A cgroup_iter should be treated as an opaque object */ struct cgroup_iter { diff --git a/include/linux/coda.h b/include/linux/coda.h index b5cf0780c51..96c87693800 100644 --- a/include/linux/coda.h +++ b/include/linux/coda.h @@ -199,28 +199,6 @@ typedef u_int32_t vuid_t; typedef u_int32_t vgid_t; #endif /*_VUID_T_ */ -#ifdef CONFIG_CODA_FS_OLD_API -struct CodaFid { - u_int32_t opaque[3]; -}; - -static __inline__ ino_t coda_f2i(struct CodaFid *fid) -{ - if ( ! fid ) - return 0; - if (fid->opaque[1] == 0xfffffffe || fid->opaque[1] == 0xffffffff) - return ((fid->opaque[0] << 20) | (fid->opaque[2] & 0xfffff)); - else - return (fid->opaque[2] + (fid->opaque[1]<<10) + (fid->opaque[0]<<20)); -} - -struct coda_cred { - vuid_t cr_uid, cr_euid, cr_suid, cr_fsuid; /* Real, efftve, set, fs uid*/ - vgid_t cr_groupid, cr_egid, cr_sgid, cr_fsgid; /* same for groups */ -}; - -#else /* not defined(CONFIG_CODA_FS_OLD_API) */ - struct CodaFid { u_int32_t opaque[4]; }; @@ -228,8 +206,6 @@ struct CodaFid { #define coda_f2i(fid)\ (fid ? (fid->opaque[3] ^ (fid->opaque[2]<<10) ^ (fid->opaque[1]<<20) ^ fid->opaque[0]) : 0) -#endif - #ifndef _VENUS_VATTR_T_ #define _VENUS_VATTR_T_ /* @@ -313,15 +289,7 @@ struct coda_statfs { #define CIOC_KERNEL_VERSION _IOWR('c', 10, size_t) -#if 0 -#define CODA_KERNEL_VERSION 0 /* don't care about kernel version number */ -#define CODA_KERNEL_VERSION 1 /* The old venus 4.6 compatible interface */ -#endif -#ifdef CONFIG_CODA_FS_OLD_API -#define CODA_KERNEL_VERSION 2 /* venus_lookup got an extra parameter */ -#else #define CODA_KERNEL_VERSION 3 /* 128-bit file identifiers */ -#endif /* * Venus <-> Coda RPC arguments @@ -329,16 +297,9 @@ struct coda_statfs { struct coda_in_hdr { u_int32_t opcode; u_int32_t unique; /* Keep multiple outstanding msgs distinct */ -#ifdef CONFIG_CODA_FS_OLD_API - u_int16_t pid; /* Common to all */ - u_int16_t pgid; /* Common to all */ - u_int16_t sid; /* Common to all */ - struct coda_cred cred; /* Common to all */ -#else pid_t pid; pid_t pgid; vuid_t uid; -#endif }; /* Really important that opcode and unique are 1st two fields! */ @@ -613,11 +574,7 @@ struct coda_vget_out { /* CODA_PURGEUSER is a venus->kernel call */ struct coda_purgeuser_out { struct coda_out_hdr oh; -#ifdef CONFIG_CODA_FS_OLD_API - struct coda_cred cred; -#else vuid_t uid; -#endif }; /* coda_zapfile: */ diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 7464ba3b433..d7faf880849 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -69,10 +69,11 @@ static inline void unregister_cpu_notifier(struct notifier_block *nb) #endif int cpu_up(unsigned int cpu); - extern void cpu_hotplug_init(void); +extern void cpu_maps_update_begin(void); +extern void cpu_maps_update_done(void); -#else +#else /* CONFIG_SMP */ static inline int register_cpu_notifier(struct notifier_block *nb) { @@ -87,10 +88,16 @@ static inline void cpu_hotplug_init(void) { } +static inline void cpu_maps_update_begin(void) +{ +} + +static inline void cpu_maps_update_done(void) +{ +} + #endif /* CONFIG_SMP */ extern struct sysdev_class cpu_sysdev_class; -extern void cpu_maps_update_begin(void); -extern void cpu_maps_update_done(void); #ifdef CONFIG_HOTPLUG_CPU /* Stop CPUs going up and down. */ diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h index 22c7ac5cd80..6cd39a927e1 100644 --- a/include/linux/crash_dump.h +++ b/include/linux/crash_dump.h @@ -22,5 +22,13 @@ extern struct proc_dir_entry *proc_vmcore; #define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x)) +static inline int is_kdump_kernel(void) +{ + return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0; +} +#else /* !CONFIG_CRASH_DUMP */ +static inline int is_kdump_kernel(void) { return 0; } #endif /* CONFIG_CRASH_DUMP */ + +extern unsigned long saved_max_pfn; #endif /* LINUX_CRASHDUMP_H */ diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h index ab94bc08355..f352f06fa06 100644 --- a/include/linux/delayacct.h +++ b/include/linux/delayacct.h @@ -39,6 +39,8 @@ extern void __delayacct_blkio_start(void); extern void __delayacct_blkio_end(void); extern int __delayacct_add_tsk(struct taskstats *, struct task_struct *); extern __u64 __delayacct_blkio_ticks(struct task_struct *); +extern void __delayacct_freepages_start(void); +extern void __delayacct_freepages_end(void); static inline int delayacct_is_task_waiting_on_io(struct task_struct *p) { @@ -107,6 +109,18 @@ static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk) return 0; } +static inline void delayacct_freepages_start(void) +{ + if (current->delays) + __delayacct_freepages_start(); +} + +static inline void delayacct_freepages_end(void) +{ + if (current->delays) + __delayacct_freepages_end(); +} + #else static inline void delayacct_set_flag(int flag) {} @@ -129,6 +143,11 @@ static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk) { return 0; } static inline int delayacct_is_task_waiting_on_io(struct task_struct *p) { return 0; } +static inline void delayacct_freepages_start(void) +{} +static inline void delayacct_freepages_end(void) +{} + #endif /* CONFIG_TASK_DELAY_ACCT */ #endif diff --git a/include/linux/dirent.h b/include/linux/dirent.h index 5d6023b8780..f072fb8d10a 100644 --- a/include/linux/dirent.h +++ b/include/linux/dirent.h @@ -1,23 +1,6 @@ #ifndef _LINUX_DIRENT_H #define _LINUX_DIRENT_H -struct dirent { - long d_ino; - __kernel_off_t d_off; - unsigned short d_reclen; - char d_name[256]; /* We must not include limits.h! */ -}; - -struct dirent64 { - __u64 d_ino; - __s64 d_off; - unsigned short d_reclen; - unsigned char d_type; - char d_name[256]; -}; - -#ifdef __KERNEL__ - struct linux_dirent64 { u64 d_ino; s64 d_off; @@ -26,7 +9,4 @@ struct linux_dirent64 { char d_name[0]; }; -#endif /* __KERNEL__ */ - - #endif diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h index 84cec2aa9f1..2efe7b863cf 100644 --- a/include/linux/ext2_fs.h +++ b/include/linux/ext2_fs.h @@ -284,8 +284,8 @@ struct ext2_inode { #ifdef __hurd__ #define i_translator osd1.hurd1.h_i_translator -#define i_frag osd2.hurd2.h_i_frag; -#define i_fsize osd2.hurd2.h_i_fsize; +#define i_frag osd2.hurd2.h_i_frag +#define i_fsize osd2.hurd2.h_i_fsize #define i_uid_high osd2.hurd2.h_i_uid_high #define i_gid_high osd2.hurd2.h_i_gid_high #define i_author osd2.hurd2.h_i_author diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 36c54039637..80171ee89a2 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -832,6 +832,7 @@ extern void ext3_discard_reservation (struct inode *); extern void ext3_dirty_inode(struct inode *); extern int ext3_change_inode_journal_flag(struct inode *, int); extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *); +extern int ext3_can_truncate(struct inode *inode); extern void ext3_truncate (struct inode *); extern void ext3_set_inode_flags(struct inode *); extern void ext3_get_inode_flags(struct ext3_inode_info *); diff --git a/include/linux/fd1772.h b/include/linux/fd1772.h deleted file mode 100644 index 871d6e4c677..00000000000 --- a/include/linux/fd1772.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef _LINUX_FD1772REG_H -#define _LINUX_FD1772REG_H - -/* -** WD1772 stuff - originally from the M68K Linux - * Modified for Archimedes by Dave Gilbert (gilbertd@cs.man.ac.uk) - */ - -/* register codes */ - -#define FDC1772SELREG_STP (0x80) /* command/status register */ -#define FDC1772SELREG_TRA (0x82) /* track register */ -#define FDC1772SELREG_SEC (0x84) /* sector register */ -#define FDC1772SELREG_DTA (0x86) /* data register */ - -/* register names for FDC1772_READ/WRITE macros */ - -#define FDC1772REG_CMD 0 -#define FDC1772REG_STATUS 0 -#define FDC1772REG_TRACK 2 -#define FDC1772REG_SECTOR 4 -#define FDC1772REG_DATA 6 - -/* command opcodes */ - -#define FDC1772CMD_RESTORE (0x00) /* - */ -#define FDC1772CMD_SEEK (0x10) /* | */ -#define FDC1772CMD_STEP (0x20) /* | TYP 1 Commands */ -#define FDC1772CMD_STIN (0x40) /* | */ -#define FDC1772CMD_STOT (0x60) /* - */ -#define FDC1772CMD_RDSEC (0x80) /* - TYP 2 Commands */ -#define FDC1772CMD_WRSEC (0xa0) /* - " */ -#define FDC1772CMD_RDADR (0xc0) /* - */ -#define FDC1772CMD_RDTRA (0xe0) /* | TYP 3 Commands */ -#define FDC1772CMD_WRTRA (0xf0) /* - */ -#define FDC1772CMD_FORCI (0xd0) /* - TYP 4 Command */ - -/* command modifier bits */ - -#define FDC1772CMDADD_SR6 (0x00) /* step rate settings */ -#define FDC1772CMDADD_SR12 (0x01) -#define FDC1772CMDADD_SR2 (0x02) -#define FDC1772CMDADD_SR3 (0x03) -#define FDC1772CMDADD_V (0x04) /* verify */ -#define FDC1772CMDADD_H (0x08) /* wait for spin-up */ -#define FDC1772CMDADD_U (0x10) /* update track register */ -#define FDC1772CMDADD_M (0x10) /* multiple sector access */ -#define FDC1772CMDADD_E (0x04) /* head settling flag */ -#define FDC1772CMDADD_P (0x02) /* precompensation */ -#define FDC1772CMDADD_A0 (0x01) /* DAM flag */ - -/* status register bits */ - -#define FDC1772STAT_MOTORON (0x80) /* motor on */ -#define FDC1772STAT_WPROT (0x40) /* write protected (FDC1772CMD_WR*) */ -#define FDC1772STAT_SPINUP (0x20) /* motor speed stable (Type I) */ -#define FDC1772STAT_DELDAM (0x20) /* sector has deleted DAM (Type II+III) */ -#define FDC1772STAT_RECNF (0x10) /* record not found */ -#define FDC1772STAT_CRC (0x08) /* CRC error */ -#define FDC1772STAT_TR00 (0x04) /* Track 00 flag (Type I) */ -#define FDC1772STAT_LOST (0x04) /* Lost Data (Type II+III) */ -#define FDC1772STAT_IDX (0x02) /* Index status (Type I) */ -#define FDC1772STAT_DRQ (0x02) /* DRQ status (Type II+III) */ -#define FDC1772STAT_BUSY (0x01) /* FDC1772 is busy */ - - -/* PSG Port A Bit Nr 0 .. Side Sel .. 0 -> Side 1 1 -> Side 2 */ -#define DSKSIDE (0x01) - -#define DSKDRVNONE (0x06) -#define DSKDRV0 (0x02) -#define DSKDRV1 (0x04) - -/* step rates */ -#define FDC1772STEP_6 0x00 -#define FDC1772STEP_12 0x01 -#define FDC1772STEP_2 0x02 -#define FDC1772STEP_3 0x03 - -#endif diff --git a/include/linux/fs.h b/include/linux/fs.h index 4b86f806014..49d8eb7a71b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -886,6 +886,12 @@ static inline int file_check_writeable(struct file *filp) #define FL_SLEEP 128 /* A blocking lock */ /* + * Special return value from posix_lock_file() and vfs_lock_file() for + * asynchronous locking. + */ +#define FILE_LOCK_DEFERRED 1 + +/* * The POSIX file lock owner is determined by * the "struct files_struct" in the thread group * (or NULL for no owner - BSD locks). diff --git a/include/linux/fuse.h b/include/linux/fuse.h index d4828219769..265635dc990 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -104,11 +104,14 @@ struct fuse_file_lock { /** * INIT request/reply flags + * + * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".." */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) #define FUSE_FILE_OPS (1 << 2) #define FUSE_ATOMIC_O_TRUNC (1 << 3) +#define FUSE_EXPORT_SUPPORT (1 << 4) #define FUSE_BIG_WRITES (1 << 5) /** diff --git a/include/linux/genhd.h b/include/linux/genhd.h index e8787417f65..118216f1bd3 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -541,7 +541,7 @@ extern dev_t blk_lookup_devt(const char *name, int part); extern char *disk_name (struct gendisk *hd, int part, char *buf); extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev); -extern void add_partition(struct gendisk *, int, sector_t, sector_t, int); +extern int __must_check add_partition(struct gendisk *, int, sector_t, sector_t, int); extern void delete_partition(struct gendisk *, int); extern void printk_all_partitions(void); diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 98be6c5762b..730a20b8357 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -79,6 +79,19 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value) WARN_ON(1); } +static inline int gpio_export(unsigned gpio, bool direction_may_change) +{ + /* GPIO can never have been requested or set as {in,out}put */ + WARN_ON(1); + return -EINVAL; +} + +static inline void gpio_unexport(unsigned gpio) +{ + /* GPIO can never have been exported */ + WARN_ON(1); +} + static inline int gpio_to_irq(unsigned gpio) { /* GPIO can never have been requested or set as input */ diff --git a/include/linux/i2c/max732x.h b/include/linux/i2c/max732x.h new file mode 100644 index 00000000000..e10336631c6 --- /dev/null +++ b/include/linux/i2c/max732x.h @@ -0,0 +1,19 @@ +#ifndef __LINUX_I2C_MAX732X_H +#define __LINUX_I2C_MAX732X_H + +/* platform data for the MAX732x 8/16-bit I/O expander driver */ + +struct max732x_platform_data { + /* number of the first GPIO */ + unsigned gpio_base; + + void *context; /* param to setup/teardown */ + + int (*setup)(struct i2c_client *client, + unsigned gpio, unsigned ngpio, + void *context); + int (*teardown)(struct i2c_client *client, + unsigned gpio, unsigned ngpio, + void *context); +}; +#endif /* __LINUX_I2C_MAX732X_H */ diff --git a/include/linux/idr.h b/include/linux/idr.h index 9a2d762124d..fa035f96f2a 100644 --- a/include/linux/idr.h +++ b/include/linux/idr.h @@ -15,6 +15,7 @@ #include <linux/types.h> #include <linux/bitops.h> #include <linux/init.h> +#include <linux/rcupdate.h> #if BITS_PER_LONG == 32 # define IDR_BITS 5 @@ -51,6 +52,7 @@ struct idr_layer { unsigned long bitmap; /* A zero bit means "space here" */ struct idr_layer *ary[1<<IDR_BITS]; int count; /* When zero, we can release it */ + struct rcu_head rcu_head; }; struct idr { @@ -71,6 +73,28 @@ struct idr { } #define DEFINE_IDR(name) struct idr name = IDR_INIT(name) +/* Actions to be taken after a call to _idr_sub_alloc */ +#define IDR_NEED_TO_GROW -2 +#define IDR_NOMORE_SPACE -3 + +#define _idr_rc_to_errno(rc) ((rc) == -1 ? -EAGAIN : -ENOSPC) + +/** + * idr synchronization (stolen from radix-tree.h) + * + * idr_find() is able to be called locklessly, using RCU. The caller must + * ensure calls to this function are made within rcu_read_lock() regions. + * Other readers (lock-free or otherwise) and modifications may be running + * concurrently. + * + * It is still required that the caller manage the synchronization and + * lifetimes of the items. So if RCU lock-free lookups are used, typically + * this would mean that the items have their own locks, or are amenable to + * lock-free access; and that the items are freed by RCU (or only freed after + * having been deleted from the idr tree *and* a synchronize_rcu() grace + * period). + */ + /* * This is what we export. */ diff --git a/include/linux/init.h b/include/linux/init.h index 21d658cdfa2..42ae95411a9 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -275,13 +275,7 @@ void __init parse_early_param(void); #define security_initcall(fn) module_init(fn) -/* These macros create a dummy inline: gcc 2.9x does not count alias - as usage, hence the `unused function' warning when __init functions - are declared static. We use the dummy __*_module_inline functions - both to kill the warning and check the type of the init/cleanup - function. */ - -/* Each module must use one module_init(), or one no_module_init */ +/* Each module must use one module_init(). */ #define module_init(initfn) \ static inline initcall_t __inittest(void) \ { return initfn; } \ diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 93c45acf249..021d8e720c7 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -122,7 +122,7 @@ extern struct group_info init_groups; .state = 0, \ .stack = &init_thread_info, \ .usage = ATOMIC_INIT(2), \ - .flags = 0, \ + .flags = PF_KTHREAD, \ .lock_depth = -1, \ .prio = MAX_PRIO-20, \ .static_prio = MAX_PRIO-20, \ diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index ea6c18a8b0d..ea330f9e710 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -36,6 +36,7 @@ struct ipc_namespace { int msg_ctlmni; atomic_t msg_bytes; atomic_t msg_hdrs; + int auto_msgmni; size_t shm_ctlmax; size_t shm_ctlall; @@ -53,7 +54,7 @@ extern atomic_t nr_ipc_ns; extern int register_ipcns_notifier(struct ipc_namespace *); extern int cond_register_ipcns_notifier(struct ipc_namespace *); -extern int unregister_ipcns_notifier(struct ipc_namespace *); +extern void unregister_ipcns_notifier(struct ipc_namespace *); extern int ipcns_notify(unsigned long); #else /* CONFIG_SYSVIPC */ diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h index 2b1c2e58566..74bde13224c 100644 --- a/include/linux/irqflags.h +++ b/include/linux/irqflags.h @@ -11,6 +11,8 @@ #ifndef _LINUX_TRACE_IRQFLAGS_H #define _LINUX_TRACE_IRQFLAGS_H +#include <linux/typecheck.h> + #ifdef CONFIG_TRACE_IRQFLAGS extern void trace_softirqs_on(unsigned long ip); extern void trace_softirqs_off(unsigned long ip); @@ -58,18 +60,24 @@ do { trace_hardirqs_on(); raw_local_irq_enable(); } while (0) #define local_irq_disable() \ do { raw_local_irq_disable(); trace_hardirqs_off(); } while (0) -#define local_irq_save(flags) \ - do { raw_local_irq_save(flags); trace_hardirqs_off(); } while (0) +#define local_irq_save(flags) \ + do { \ + typecheck(unsigned long, flags); \ + raw_local_irq_save(flags); \ + trace_hardirqs_off(); \ + } while (0) -#define local_irq_restore(flags) \ - do { \ - if (raw_irqs_disabled_flags(flags)) { \ - raw_local_irq_restore(flags); \ - trace_hardirqs_off(); \ - } else { \ - trace_hardirqs_on(); \ - raw_local_irq_restore(flags); \ - } \ + +#define local_irq_restore(flags) \ + do { \ + typecheck(unsigned long, flags); \ + if (raw_irqs_disabled_flags(flags)) { \ + raw_local_irq_restore(flags); \ + trace_hardirqs_off(); \ + } else { \ + trace_hardirqs_on(); \ + raw_local_irq_restore(flags); \ + } \ } while (0) #else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */ /* @@ -78,8 +86,16 @@ */ # define raw_local_irq_disable() local_irq_disable() # define raw_local_irq_enable() local_irq_enable() -# define raw_local_irq_save(flags) local_irq_save(flags) -# define raw_local_irq_restore(flags) local_irq_restore(flags) +# define raw_local_irq_save(flags) \ + do { \ + typecheck(unsigned long, flags); \ + local_irq_save(flags); \ + } while (0) +# define raw_local_irq_restore(flags) \ + do { \ + typecheck(unsigned long, flags); \ + local_irq_restore(flags); \ + } while (0) #endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */ #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT @@ -89,7 +105,11 @@ raw_safe_halt(); \ } while (0) -#define local_save_flags(flags) raw_local_save_flags(flags) +#define local_save_flags(flags) \ + do { \ + typecheck(unsigned long, flags); \ + raw_local_save_flags(flags); \ + } while (0) #define irqs_disabled() \ ({ \ @@ -99,7 +119,11 @@ raw_irqs_disabled_flags(_flags); \ }) -#define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags) +#define irqs_disabled_flags(flags) \ +({ \ + typecheck(unsigned long, flags); \ + raw_irqs_disabled_flags(flags); \ +}) #endif /* CONFIG_X86 */ #endif diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index 00c1801099f..57aefa160a9 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -6,6 +6,7 @@ #define _LINUX_KALLSYMS_H #include <linux/errno.h> +#include <linux/kernel.h> #include <linux/stddef.h> #define KSYM_NAME_LEN 128 @@ -105,18 +106,10 @@ static inline void print_fn_descriptor_symbol(const char *fmt, void *addr) print_symbol(fmt, (unsigned long)addr); } -#ifndef CONFIG_64BIT -#define print_ip_sym(ip) \ -do { \ - printk("[<%08lx>]", ip); \ - print_symbol(" %s\n", ip); \ -} while(0) -#else -#define print_ip_sym(ip) \ -do { \ - printk("[<%016lx>]", ip); \ - print_symbol(" %s\n", ip); \ -} while(0) -#endif +static inline void print_ip_sym(unsigned long ip) +{ + printk("[<%p>]", (void *) ip); + print_symbol(" %s\n", ip); +} #endif /*_LINUX_KALLSYMS_H*/ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index f9cd7a513f9..fdbbf72ca2e 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -14,6 +14,8 @@ #include <linux/compiler.h> #include <linux/bitops.h> #include <linux/log2.h> +#include <linux/typecheck.h> +#include <linux/ratelimit.h> #include <asm/byteorder.h> #include <asm/bug.h> @@ -188,11 +190,8 @@ asmlinkage int vprintk(const char *fmt, va_list args) asmlinkage int printk(const char * fmt, ...) __attribute__ ((format (printf, 1, 2))) __cold; -extern int printk_ratelimit_jiffies; -extern int printk_ratelimit_burst; +extern struct ratelimit_state printk_ratelimit_state; extern int printk_ratelimit(void); -extern int __ratelimit(int ratelimit_jiffies, int ratelimit_burst); -extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst); extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, unsigned int interval_msec); #else @@ -203,8 +202,6 @@ static inline int printk(const char *s, ...) __attribute__ ((format (printf, 1, 2))); static inline int __cold printk(const char *s, ...) { return 0; } static inline int printk_ratelimit(void) { return 0; } -static inline int __printk_ratelimit(int ratelimit_jiffies, \ - int ratelimit_burst) { return 0; } static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \ unsigned int interval_msec) \ { return false; } @@ -441,26 +438,6 @@ static inline char *pack_hex_byte(char *buf, u8 byte) const typeof( ((type *)0)->member ) *__mptr = (ptr); \ (type *)( (char *)__mptr - offsetof(type,member) );}) -/* - * Check at compile time that something is of a particular type. - * Always evaluates to 1 so you may use it easily in comparisons. - */ -#define typecheck(type,x) \ -({ type __dummy; \ - typeof(x) __dummy2; \ - (void)(&__dummy == &__dummy2); \ - 1; \ -}) - -/* - * Check at compile time that 'function' is a certain type, or is a pointer - * to that type (needs to use typedef for the function type.) - */ -#define typecheck_fn(type,function) \ -({ typeof(type) __tmp = function; \ - (void)__tmp; \ -}) - struct sysinfo; extern int do_sysinfo(struct sysinfo *info); diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 0509c4ce485..a1a91577813 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -19,6 +19,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include <linux/gfp.h> #include <linux/stddef.h> #include <linux/errno.h> #include <linux/compiler.h> @@ -41,8 +42,8 @@ struct file; struct subprocess_info; /* Allocate a subprocess_info structure */ -struct subprocess_info *call_usermodehelper_setup(char *path, - char **argv, char **envp); +struct subprocess_info *call_usermodehelper_setup(char *path, char **argv, + char **envp, gfp_t gfp_mask); /* Set various pieces of state into the subprocess_info structure */ void call_usermodehelper_setkeys(struct subprocess_info *info, @@ -69,8 +70,9 @@ static inline int call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait) { struct subprocess_info *info; + gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL; - info = call_usermodehelper_setup(path, argv, envp); + info = call_usermodehelper_setup(path, argv, envp, gfp_mask); if (info == NULL) return -ENOMEM; return call_usermodehelper_exec(info, wait); @@ -81,8 +83,9 @@ call_usermodehelper_keys(char *path, char **argv, char **envp, struct key *session_keyring, enum umh_wait wait) { struct subprocess_info *info; + gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL; - info = call_usermodehelper_setup(path, argv, envp); + info = call_usermodehelper_setup(path, argv, envp, gfp_mask); if (info == NULL) return -ENOMEM; diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 04a3556bdea..0be7795655f 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -157,11 +157,10 @@ struct kretprobe { int nmissed; size_t data_size; struct hlist_head free_instances; - struct hlist_head used_instances; + spinlock_t lock; }; struct kretprobe_instance { - struct hlist_node uflist; /* either on free list or used list */ struct hlist_node hlist; struct kretprobe *rp; kprobe_opcode_t *ret_addr; @@ -201,7 +200,6 @@ static inline int init_test_probes(void) } #endif /* CONFIG_KPROBES_SANITY_TEST */ -extern spinlock_t kretprobe_lock; extern struct mutex kprobe_mutex; extern int arch_prepare_kprobe(struct kprobe *p); extern void arch_arm_kprobe(struct kprobe *p); @@ -214,6 +212,9 @@ extern void kprobes_inc_nmissed_count(struct kprobe *p); /* Get the kprobe at this addr (if any) - called with preemption disabled */ struct kprobe *get_kprobe(void *addr); +void kretprobe_hash_lock(struct task_struct *tsk, + struct hlist_head **head, unsigned long *flags); +void kretprobe_hash_unlock(struct task_struct *tsk, unsigned long *flags); struct hlist_head * kretprobe_inst_table_head(struct task_struct *tsk); /* kprobe_running() will just return the current_kprobe on this CPU */ diff --git a/include/linux/kthread.h b/include/linux/kthread.h index 00dd957e245..aabc8a13ba7 100644 --- a/include/linux/kthread.h +++ b/include/linux/kthread.h @@ -6,7 +6,8 @@ struct task_struct *kthread_create(int (*threadfn)(void *data), void *data, - const char namefmt[], ...); + const char namefmt[], ...) + __attribute__((format(printf, 3, 4))); /** * kthread_run - create and wake a thread. diff --git a/include/linux/list.h b/include/linux/list.h index 139ec41d9c2..453916bc041 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -61,14 +61,10 @@ extern void __list_add(struct list_head *new, * Insert a new entry after the specified head. * This is good for implementing stacks. */ -#ifndef CONFIG_DEBUG_LIST static inline void list_add(struct list_head *new, struct list_head *head) { __list_add(new, head, head->next); } -#else -extern void list_add(struct list_head *new, struct list_head *head); -#endif /** diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index e6608776bc9..fdf3967e139 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -35,7 +35,10 @@ extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); extern void mem_cgroup_uncharge_page(struct page *page); +extern void mem_cgroup_uncharge_cache_page(struct page *page); extern void mem_cgroup_move_lists(struct page *page, bool active); +extern int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask); + extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, struct list_head *dst, unsigned long *scanned, int order, @@ -50,9 +53,9 @@ extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p); #define mm_match_cgroup(mm, cgroup) \ ((cgroup) == mem_cgroup_from_task((mm)->owner)) -extern int mem_cgroup_prepare_migration(struct page *page); +extern int +mem_cgroup_prepare_migration(struct page *page, struct page *newpage); extern void mem_cgroup_end_migration(struct page *page); -extern void mem_cgroup_page_migration(struct page *page, struct page *newpage); /* * For memory reclaim. @@ -97,6 +100,15 @@ static inline void mem_cgroup_uncharge_page(struct page *page) { } +static inline void mem_cgroup_uncharge_cache_page(struct page *page) +{ +} + +static inline int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask) +{ + return 0; +} + static inline void mem_cgroup_move_lists(struct page *page, bool active) { } @@ -112,7 +124,8 @@ static inline int task_in_mem_cgroup(struct task_struct *task, return 1; } -static inline int mem_cgroup_prepare_migration(struct page *page) +static inline int +mem_cgroup_prepare_migration(struct page *page, struct page *newpage) { return 0; } @@ -121,11 +134,6 @@ static inline void mem_cgroup_end_migration(struct page *page) { } -static inline void -mem_cgroup_page_migration(struct page *page, struct page *newpage) -{ -} - static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem) { return 0; diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 02a27ae7853..746f975b58e 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -159,6 +159,17 @@ struct vm_area_struct { #endif }; +struct core_thread { + struct task_struct *task; + struct core_thread *next; +}; + +struct core_state { + atomic_t nr_threads; + struct core_thread dumper; + struct completion startup; +}; + struct mm_struct { struct vm_area_struct * mmap; /* list of VMAs */ struct rb_root mm_rb; @@ -175,7 +186,6 @@ struct mm_struct { atomic_t mm_users; /* How many users with user space? */ atomic_t mm_count; /* How many references to "struct mm_struct" (users count as 1) */ int map_count; /* number of VMAs */ - int core_waiters; struct rw_semaphore mmap_sem; spinlock_t page_table_lock; /* Protects page tables and some counters */ @@ -219,8 +229,7 @@ struct mm_struct { unsigned long flags; /* Must use atomic bitops to access the bits */ - /* coredumping support */ - struct completion *core_startup_done, core_done; + struct core_state *core_state; /* coredumping support */ /* aio bits */ rwlock_t ioctx_list_lock; /* aio lock */ diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h index 81cd36b735b..ba63858056c 100644 --- a/include/linux/msdos_fs.h +++ b/include/linux/msdos_fs.h @@ -2,11 +2,11 @@ #define _LINUX_MSDOS_FS_H #include <linux/magic.h> +#include <asm/byteorder.h> /* * The MS-DOS filesystem constants/structures */ -#include <asm/byteorder.h> #define SECTOR_SIZE 512 /* sector size (bytes) */ #define SECTOR_BITS 9 /* log2(SECTOR_SIZE) */ @@ -89,24 +89,22 @@ #define IS_FSINFO(x) (le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 \ && le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2) +struct __fat_dirent { + long d_ino; + __kernel_off_t d_off; + unsigned short d_reclen; + char d_name[256]; /* We must not include limits.h! */ +}; + /* * ioctl commands */ -#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) -#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) +#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct __fat_dirent[2]) +#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct __fat_dirent[2]) /* <linux/videotext.h> has used 0x72 ('r') in collision, so skip a few */ #define FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32) #define FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32) -/* - * vfat shortname flags - */ -#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */ -#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */ -#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */ -#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */ -#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */ - struct fat_boot_sector { __u8 ignored[3]; /* Boot strap short or near jump */ __u8 system_id[8]; /* Name - can be used to special case @@ -168,14 +166,6 @@ struct msdos_dir_slot { __u8 name11_12[4]; /* last 2 characters in name */ }; -struct fat_slot_info { - loff_t i_pos; /* on-disk position of directory entry */ - loff_t slot_off; /* offset for slot or de start */ - int nr_slots; /* number of slots + 1(de) in filename */ - struct msdos_dir_entry *de; - struct buffer_head *bh; -}; - #ifdef __KERNEL__ #include <linux/buffer_head.h> @@ -184,6 +174,15 @@ struct fat_slot_info { #include <linux/fs.h> #include <linux/mutex.h> +/* + * vfat shortname flags + */ +#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */ +#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */ +#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */ +#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */ +#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */ + struct fat_mount_options { uid_t fs_uid; gid_t fs_gid; @@ -202,10 +201,10 @@ struct fat_mount_options { utf8:1, /* Use of UTF-8 character set (Default) */ unicode_xlate:1, /* create escape sequences for unhandled Unicode */ numtail:1, /* Does first alias have a numeric '~1' type tail? */ - atari:1, /* Use Atari GEMDOS variation of MS-DOS fs */ flush:1, /* write things quickly */ nocase:1, /* Does this need case conversion? 0=need case conversion*/ - usefree:1; /* Use free_clusters for FAT32 */ + usefree:1, /* Use free_clusters for FAT32 */ + tz_utc:1; /* Filesystem timestamps are in UTC */ }; #define FAT_HASH_BITS 8 @@ -267,6 +266,14 @@ struct msdos_inode_info { struct inode vfs_inode; }; +struct fat_slot_info { + loff_t i_pos; /* on-disk position of directory entry */ + loff_t slot_off; /* offset for slot or de start */ + int nr_slots; /* number of slots + 1(de) in filename */ + struct msdos_dir_entry *de; + struct buffer_head *bh; +}; + static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb) { return sb->s_fs_info; @@ -428,8 +435,9 @@ extern int fat_flush_inodes(struct super_block *sb, struct inode *i1, extern void fat_fs_panic(struct super_block *s, const char *fmt, ...); extern void fat_clusters_flush(struct super_block *sb); extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster); -extern int date_dos2unix(unsigned short time, unsigned short date); -extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date); +extern int date_dos2unix(unsigned short time, unsigned short date, int tz_utc); +extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date, + int tz_utc); extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs); int fat_cache_init(void); diff --git a/include/linux/mtd/ubi.h b/include/linux/mtd/ubi.h index f71201d0f3e..6316fafe5c2 100644 --- a/include/linux/mtd/ubi.h +++ b/include/linux/mtd/ubi.h @@ -45,13 +45,13 @@ enum { * @size: how many physical eraseblocks are reserved for this volume * @used_bytes: how many bytes of data this volume contains * @used_ebs: how many physical eraseblocks of this volume actually contain any - * data + * data * @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME) * @corrupted: non-zero if the volume is corrupted (static volumes only) * @upd_marker: non-zero if the volume has update marker set * @alignment: volume alignment * @usable_leb_size: how many bytes are available in logical eraseblocks of - * this volume + * this volume * @name_len: volume name length * @name: volume name * @cdev: UBI volume character device major and minor numbers @@ -152,6 +152,7 @@ int ubi_leb_erase(struct ubi_volume_desc *desc, int lnum); int ubi_leb_unmap(struct ubi_volume_desc *desc, int lnum); int ubi_leb_map(struct ubi_volume_desc *desc, int lnum, int dtype); int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum); +int ubi_sync(int ubi_num); /* * This function is the same as the 'ubi_leb_read()' function, but it does not diff --git a/include/linux/net.h b/include/linux/net.h index 2f999fbb188..4a9a30f2d68 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -351,8 +351,7 @@ static const struct proto_ops name##_ops = { \ #ifdef CONFIG_SYSCTL #include <linux/sysctl.h> -extern int net_msg_cost; -extern int net_msg_burst; +extern struct ratelimit_state net_ratelimit_state; #endif #endif /* __KERNEL__ */ diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h index a2861d95ecc..108f47e5fd9 100644 --- a/include/linux/nfsd/nfsd.h +++ b/include/linux/nfsd/nfsd.h @@ -12,7 +12,6 @@ #include <linux/types.h> #include <linux/unistd.h> -#include <linux/dirent.h> #include <linux/fs.h> #include <linux/posix_acl.h> #include <linux/mount.h> diff --git a/include/linux/notifier.h b/include/linux/notifier.h index bd3d72ddf33..da2698b0fdd 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -214,6 +214,8 @@ static inline int notifier_to_errno(int ret) #define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ #define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, * not handling interrupts, soon dead */ +#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug + * lock is dropped */ /* Used for CPU hotplug events occuring while tasks are frozen due to a suspend * operation in progress diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h index 0e66b57631f..c8a768e5964 100644 --- a/include/linux/nsproxy.h +++ b/include/linux/nsproxy.h @@ -82,9 +82,12 @@ static inline void get_nsproxy(struct nsproxy *ns) } #ifdef CONFIG_CGROUP_NS -int ns_cgroup_clone(struct task_struct *tsk); +int ns_cgroup_clone(struct task_struct *tsk, struct pid *pid); #else -static inline int ns_cgroup_clone(struct task_struct *tsk) { return 0; } +static inline int ns_cgroup_clone(struct task_struct *tsk, struct pid *pid) +{ + return 0; +} #endif #endif diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 119ae7b8f02..c3b1761aba2 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2400,6 +2400,9 @@ #define PCI_DEVICE_ID_INTEL_ICH10_4 0x3a30 #define PCI_DEVICE_ID_INTEL_ICH10_5 0x3a60 #define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f +#define PCI_DEVICE_ID_INTEL_5100_16 0x65f0 +#define PCI_DEVICE_ID_INTEL_5100_21 0x65f5 +#define PCI_DEVICE_ID_INTEL_5100_22 0x65f6 #define PCI_DEVICE_ID_INTEL_5400_ERR 0x4030 #define PCI_DEVICE_ID_INTEL_5400_FBD0 0x4035 #define PCI_DEVICE_ID_INTEL_5400_FBD1 0x4036 diff --git a/include/linux/pid.h b/include/linux/pid.h index c21c7e8124a..22921ac4cfd 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -48,7 +48,7 @@ enum pid_type */ struct upid { - /* Try to keep pid_chain in the same cacheline as nr for find_pid */ + /* Try to keep pid_chain in the same cacheline as nr for find_vpid */ int nr; struct pid_namespace *ns; struct hlist_node pid_chain; @@ -57,10 +57,10 @@ struct upid { struct pid { atomic_t count; + unsigned int level; /* lists of tasks that use this pid */ struct hlist_head tasks[PIDTYPE_MAX]; struct rcu_head rcu; - unsigned int level; struct upid numbers[1]; }; @@ -105,14 +105,12 @@ extern struct pid_namespace init_pid_ns; * or rcu_read_lock() held. * * find_pid_ns() finds the pid in the namespace specified - * find_pid() find the pid by its global id, i.e. in the init namespace * find_vpid() finr the pid by its virtual id, i.e. in the current namespace * - * see also find_task_by_pid() set in include/linux/sched.h + * see also find_task_by_vpid() set in include/linux/sched.h */ extern struct pid *find_pid_ns(int nr, struct pid_namespace *ns); extern struct pid *find_vpid(int nr); -extern struct pid *find_pid(int nr); /* * Lookup a PID in the hash table, and return with it's count elevated. diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index caff5283d15..1af82c4e17d 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -14,6 +14,8 @@ struct pidmap { #define PIDMAP_ENTRIES ((PID_MAX_LIMIT + 8*PAGE_SIZE - 1)/PAGE_SIZE/8) +struct bsd_acct_struct; + struct pid_namespace { struct kref kref; struct pidmap pidmap[PIDMAP_ENTRIES]; @@ -25,6 +27,9 @@ struct pid_namespace { #ifdef CONFIG_PROC_FS struct vfsmount *proc_mnt; #endif +#ifdef CONFIG_BSD_PROCESS_ACCT + struct bsd_acct_struct *bacct; +#endif }; extern struct pid_namespace init_pid_ns; @@ -85,4 +90,7 @@ static inline struct task_struct *task_child_reaper(struct task_struct *tsk) return tsk->nsproxy->pid_ns->child_reaper; } +void pidhash_init(void); +void pidmap_init(void); + #endif /* _LINUX_PID_NS_H */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 15a9eaf4a80..f560d1705af 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -79,6 +79,7 @@ struct proc_dir_entry { int pde_users; /* number of callers into module in progress */ spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ struct completion *pde_unload_completion; + struct list_head pde_openers; /* who did ->open, but not ->release */ }; struct kcore_list { @@ -138,7 +139,6 @@ extern int proc_readdir(struct file *, void *, filldir_t); extern struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *); extern const struct file_operations proc_kcore_operations; -extern const struct file_operations proc_kmsg_operations; extern const struct file_operations ppc_htab_operations; extern int pid_ns_prepare_proc(struct pid_namespace *ns); diff --git a/include/linux/profile.h b/include/linux/profile.h index 05c1cc73693..7e7087239af 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -8,8 +8,6 @@ #include <asm/errno.h> -extern int prof_on __read_mostly; - #define CPU_PROFILING 1 #define SCHED_PROFILING 2 #define SLEEP_PROFILING 3 @@ -19,14 +17,31 @@ struct proc_dir_entry; struct pt_regs; struct notifier_block; +#if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS) +void create_prof_cpu_mask(struct proc_dir_entry *de); +#else +static inline void create_prof_cpu_mask(struct proc_dir_entry *de) +{ +} +#endif + +enum profile_type { + PROFILE_TASK_EXIT, + PROFILE_MUNMAP +}; + +#ifdef CONFIG_PROFILING + +extern int prof_on __read_mostly; + /* init basic kernel profiler */ void __init profile_init(void); -void profile_tick(int); +void profile_tick(int type); /* * Add multiple profiler hits to a given address: */ -void profile_hits(int, void *ip, unsigned int nr_hits); +void profile_hits(int type, void *ip, unsigned int nr_hits); /* * Single profiler hit: @@ -40,19 +55,6 @@ static inline void profile_hit(int type, void *ip) profile_hits(type, ip, 1); } -#ifdef CONFIG_PROC_FS -void create_prof_cpu_mask(struct proc_dir_entry *); -#else -#define create_prof_cpu_mask(x) do { (void)(x); } while (0) -#endif - -enum profile_type { - PROFILE_TASK_EXIT, - PROFILE_MUNMAP -}; - -#ifdef CONFIG_PROFILING - struct task_struct; struct mm_struct; @@ -80,6 +82,28 @@ struct pt_regs; #else +#define prof_on 0 + +static inline void profile_init(void) +{ + return; +} + +static inline void profile_tick(int type) +{ + return; +} + +static inline void profile_hits(int type, void *ip, unsigned int nr_hits) +{ + return; +} + +static inline void profile_hit(int type, void *ip) +{ + return; +} + static inline int task_handoff_register(struct notifier_block * n) { return -ENOSYS; diff --git a/include/linux/quota.h b/include/linux/quota.h index dcddfb20094..376a05048bc 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -41,9 +41,6 @@ #define __DQUOT_VERSION__ "dquot_6.5.1" #define __DQUOT_NUM_VERSION__ 6*10000+5*100+1 -typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */ -typedef __u64 qsize_t; /* Type in which we store sizes */ - /* Size of blocks in which are counted size limits */ #define QUOTABLOCK_BITS 10 #define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS) @@ -138,6 +135,10 @@ struct if_dqinfo { #define QUOTA_NL_BHARDWARN 4 /* Block hardlimit reached */ #define QUOTA_NL_BSOFTLONGWARN 5 /* Block grace time expired */ #define QUOTA_NL_BSOFTWARN 6 /* Block softlimit reached */ +#define QUOTA_NL_IHARDBELOW 7 /* Usage got below inode hardlimit */ +#define QUOTA_NL_ISOFTBELOW 8 /* Usage got below inode softlimit */ +#define QUOTA_NL_BHARDBELOW 9 /* Usage got below block hardlimit */ +#define QUOTA_NL_BSOFTBELOW 10 /* Usage got below block softlimit */ enum { QUOTA_NL_C_UNSPEC, @@ -172,6 +173,9 @@ enum { #include <asm/atomic.h> +typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */ +typedef __u64 qsize_t; /* Type in which we store sizes */ + extern spinlock_t dq_data_lock; /* Maximal numbers of writes for quota operation (insert/delete/update) @@ -223,12 +227,10 @@ struct super_block; #define DQF_INFO_DIRTY (1 << DQF_INFO_DIRTY_B) /* Is info dirty? */ extern void mark_info_dirty(struct super_block *sb, int type); -#define info_dirty(info) test_bit(DQF_INFO_DIRTY_B, &(info)->dqi_flags) -#define info_any_dquot_dirty(info) (!list_empty(&(info)->dqi_dirty_list)) -#define info_any_dirty(info) (info_dirty(info) || info_any_dquot_dirty(info)) - -#define sb_dqopt(sb) (&(sb)->s_dquot) -#define sb_dqinfo(sb, type) (sb_dqopt(sb)->info+(type)) +static inline int info_dirty(struct mem_dqinfo *info) +{ + return test_bit(DQF_INFO_DIRTY_B, &info->dqi_flags); +} struct dqstats { int lookups; @@ -337,19 +339,6 @@ struct quota_info { struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */ }; -#define sb_has_quota_enabled(sb, type) ((type)==USRQUOTA ? \ - (sb_dqopt(sb)->flags & DQUOT_USR_ENABLED) : (sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED)) - -#define sb_any_quota_enabled(sb) (sb_has_quota_enabled(sb, USRQUOTA) | \ - sb_has_quota_enabled(sb, GRPQUOTA)) - -#define sb_has_quota_suspended(sb, type) \ - ((type) == USRQUOTA ? (sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED) : \ - (sb_dqopt(sb)->flags & DQUOT_GRP_SUSPENDED)) - -#define sb_any_quota_suspended(sb) (sb_has_quota_suspended(sb, USRQUOTA) | \ - sb_has_quota_suspended(sb, GRPQUOTA)) - int register_quota_format(struct quota_format_type *fmt); void unregister_quota_format(struct quota_format_type *fmt); diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h index f8670205385..742187f7a05 100644 --- a/include/linux/quotaops.h +++ b/include/linux/quotaops.h @@ -11,42 +11,85 @@ #define _LINUX_QUOTAOPS_ #include <linux/smp_lock.h> - #include <linux/fs.h> +static inline struct quota_info *sb_dqopt(struct super_block *sb) +{ + return &sb->s_dquot; +} + #if defined(CONFIG_QUOTA) /* * declaration of quota_function calls in kernel. */ -extern void sync_dquots(struct super_block *sb, int type); - -extern int dquot_initialize(struct inode *inode, int type); -extern int dquot_drop(struct inode *inode); - -extern int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc); -extern int dquot_alloc_inode(const struct inode *inode, unsigned long number); - -extern int dquot_free_space(struct inode *inode, qsize_t number); -extern int dquot_free_inode(const struct inode *inode, unsigned long number); - -extern int dquot_transfer(struct inode *inode, struct iattr *iattr); -extern int dquot_commit(struct dquot *dquot); -extern int dquot_acquire(struct dquot *dquot); -extern int dquot_release(struct dquot *dquot); -extern int dquot_commit_info(struct super_block *sb, int type); -extern int dquot_mark_dquot_dirty(struct dquot *dquot); - -extern int vfs_quota_on(struct super_block *sb, int type, int format_id, - char *path, int remount); -extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name, - int format_id, int type); -extern int vfs_quota_off(struct super_block *sb, int type, int remount); -extern int vfs_quota_sync(struct super_block *sb, int type); -extern int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); -extern int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); -extern int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di); -extern int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di); +void sync_dquots(struct super_block *sb, int type); + +int dquot_initialize(struct inode *inode, int type); +int dquot_drop(struct inode *inode); + +int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc); +int dquot_alloc_inode(const struct inode *inode, unsigned long number); + +int dquot_free_space(struct inode *inode, qsize_t number); +int dquot_free_inode(const struct inode *inode, unsigned long number); + +int dquot_transfer(struct inode *inode, struct iattr *iattr); +int dquot_commit(struct dquot *dquot); +int dquot_acquire(struct dquot *dquot); +int dquot_release(struct dquot *dquot); +int dquot_commit_info(struct super_block *sb, int type); +int dquot_mark_dquot_dirty(struct dquot *dquot); + +int vfs_quota_on(struct super_block *sb, int type, int format_id, + char *path, int remount); +int vfs_quota_on_mount(struct super_block *sb, char *qf_name, + int format_id, int type); +int vfs_quota_off(struct super_block *sb, int type, int remount); +int vfs_quota_sync(struct super_block *sb, int type); +int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); +int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); +int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di); +int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di); + +void vfs_dq_drop(struct inode *inode); +int vfs_dq_transfer(struct inode *inode, struct iattr *iattr); +int vfs_dq_quota_on_remount(struct super_block *sb); + +static inline struct mem_dqinfo *sb_dqinfo(struct super_block *sb, int type) +{ + return sb_dqopt(sb)->info + type; +} + +/* + * Functions for checking status of quota + */ + +static inline int sb_has_quota_enabled(struct super_block *sb, int type) +{ + if (type == USRQUOTA) + return sb_dqopt(sb)->flags & DQUOT_USR_ENABLED; + return sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED; +} + +static inline int sb_any_quota_enabled(struct super_block *sb) +{ + return sb_has_quota_enabled(sb, USRQUOTA) || + sb_has_quota_enabled(sb, GRPQUOTA); +} + +static inline int sb_has_quota_suspended(struct super_block *sb, int type) +{ + if (type == USRQUOTA) + return sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED; + return sb_dqopt(sb)->flags & DQUOT_GRP_SUSPENDED; +} + +static inline int sb_any_quota_suspended(struct super_block *sb) +{ + return sb_has_quota_suspended(sb, USRQUOTA) || + sb_has_quota_suspended(sb, GRPQUOTA); +} /* * Operations supported for diskquotas. @@ -59,38 +102,16 @@ extern struct quotactl_ops vfs_quotactl_ops; /* It is better to call this function outside of any transaction as it might * need a lot of space in journal for dquot structure allocation. */ -static inline void DQUOT_INIT(struct inode *inode) +static inline void vfs_dq_init(struct inode *inode) { BUG_ON(!inode->i_sb); if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) inode->i_sb->dq_op->initialize(inode, -1); } -/* The same as with DQUOT_INIT */ -static inline void DQUOT_DROP(struct inode *inode) -{ - /* Here we can get arbitrary inode from clear_inode() so we have - * to be careful. OTOH we don't need locking as quota operations - * are allowed to change only at mount time */ - if (!IS_NOQUOTA(inode) && inode->i_sb && inode->i_sb->dq_op - && inode->i_sb->dq_op->drop) { - int cnt; - /* Test before calling to rule out calls from proc and such - * where we are not allowed to block. Note that this is - * actually reliable test even without the lock - the caller - * must assure that nobody can come after the DQUOT_DROP and - * add quota pointers back anyway */ - for (cnt = 0; cnt < MAXQUOTAS; cnt++) - if (inode->i_dquot[cnt] != NODQUOT) - break; - if (cnt < MAXQUOTAS) - inode->i_sb->dq_op->drop(inode); - } -} - /* The following allocation/freeing/transfer functions *must* be called inside * a transaction (deadlocks possible otherwise) */ -static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) +static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr) { if (sb_any_quota_enabled(inode->i_sb)) { /* Used space is updated in alloc_space() */ @@ -102,15 +123,15 @@ static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) return 0; } -static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr) +static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr) { int ret; - if (!(ret = DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr))) + if (!(ret = vfs_dq_prealloc_space_nodirty(inode, nr))) mark_inode_dirty(inode); return ret; } -static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) +static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr) { if (sb_any_quota_enabled(inode->i_sb)) { /* Used space is updated in alloc_space() */ @@ -122,25 +143,25 @@ static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) return 0; } -static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr) +static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr) { int ret; - if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr))) + if (!(ret = vfs_dq_alloc_space_nodirty(inode, nr))) mark_inode_dirty(inode); return ret; } -static inline int DQUOT_ALLOC_INODE(struct inode *inode) +static inline int vfs_dq_alloc_inode(struct inode *inode) { if (sb_any_quota_enabled(inode->i_sb)) { - DQUOT_INIT(inode); + vfs_dq_init(inode); if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) return 1; } return 0; } -static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr) +static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr) { if (sb_any_quota_enabled(inode->i_sb)) inode->i_sb->dq_op->free_space(inode, nr); @@ -148,35 +169,25 @@ static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr) inode_sub_bytes(inode, nr); } -static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr) +static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr) { - DQUOT_FREE_SPACE_NODIRTY(inode, nr); + vfs_dq_free_space_nodirty(inode, nr); mark_inode_dirty(inode); } -static inline void DQUOT_FREE_INODE(struct inode *inode) +static inline void vfs_dq_free_inode(struct inode *inode) { if (sb_any_quota_enabled(inode->i_sb)) inode->i_sb->dq_op->free_inode(inode, 1); } -static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr) -{ - if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) { - DQUOT_INIT(inode); - if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA) - return 1; - } - return 0; -} - /* The following two functions cannot be called inside a transaction */ -static inline void DQUOT_SYNC(struct super_block *sb) +static inline void vfs_dq_sync(struct super_block *sb) { sync_dquots(sb, -1); } -static inline int DQUOT_OFF(struct super_block *sb, int remount) +static inline int vfs_dq_off(struct super_block *sb, int remount) { int ret = -ENOSYS; @@ -185,22 +196,27 @@ static inline int DQUOT_OFF(struct super_block *sb, int remount) return ret; } -static inline int DQUOT_ON_REMOUNT(struct super_block *sb) +#else + +static inline int sb_has_quota_enabled(struct super_block *sb, int type) { - int cnt; - int ret = 0, err; + return 0; +} - if (!sb->s_qcop || !sb->s_qcop->quota_on) - return -ENOSYS; - for (cnt = 0; cnt < MAXQUOTAS; cnt++) { - err = sb->s_qcop->quota_on(sb, cnt, 0, NULL, 1); - if (err < 0 && !ret) - ret = err; - } - return ret; +static inline int sb_any_quota_enabled(struct super_block *sb) +{ + return 0; } -#else +static inline int sb_has_quota_suspended(struct super_block *sb, int type) +{ + return 0; +} + +static inline int sb_any_quota_suspended(struct super_block *sb) +{ + return 0; +} /* * NO-OP when quota not configured. @@ -208,113 +224,144 @@ static inline int DQUOT_ON_REMOUNT(struct super_block *sb) #define sb_dquot_ops (NULL) #define sb_quotactl_ops (NULL) -static inline void DQUOT_INIT(struct inode *inode) +static inline void vfs_dq_init(struct inode *inode) { } -static inline void DQUOT_DROP(struct inode *inode) +static inline void vfs_dq_drop(struct inode *inode) { } -static inline int DQUOT_ALLOC_INODE(struct inode *inode) +static inline int vfs_dq_alloc_inode(struct inode *inode) { return 0; } -static inline void DQUOT_FREE_INODE(struct inode *inode) +static inline void vfs_dq_free_inode(struct inode *inode) { } -static inline void DQUOT_SYNC(struct super_block *sb) +static inline void vfs_dq_sync(struct super_block *sb) { } -static inline int DQUOT_OFF(struct super_block *sb, int remount) +static inline int vfs_dq_off(struct super_block *sb, int remount) { return 0; } -static inline int DQUOT_ON_REMOUNT(struct super_block *sb) +static inline int vfs_dq_quota_on_remount(struct super_block *sb) { return 0; } -static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr) +static inline int vfs_dq_transfer(struct inode *inode, struct iattr *iattr) { return 0; } -static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) +static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr) { inode_add_bytes(inode, nr); return 0; } -static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr) +static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr) { - DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr); + vfs_dq_prealloc_space_nodirty(inode, nr); mark_inode_dirty(inode); return 0; } -static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) +static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr) { inode_add_bytes(inode, nr); return 0; } -static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr) +static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr) { - DQUOT_ALLOC_SPACE_NODIRTY(inode, nr); + vfs_dq_alloc_space_nodirty(inode, nr); mark_inode_dirty(inode); return 0; } -static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr) +static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr) { inode_sub_bytes(inode, nr); } -static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr) +static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr) { - DQUOT_FREE_SPACE_NODIRTY(inode, nr); + vfs_dq_free_space_nodirty(inode, nr); mark_inode_dirty(inode); } #endif /* CONFIG_QUOTA */ -static inline int DQUOT_PREALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr) +static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr) { - return DQUOT_PREALLOC_SPACE_NODIRTY(inode, + return vfs_dq_prealloc_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits); } -static inline int DQUOT_PREALLOC_BLOCK(struct inode *inode, qsize_t nr) +static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr) { - return DQUOT_PREALLOC_SPACE(inode, + return vfs_dq_prealloc_space(inode, nr << inode->i_sb->s_blocksize_bits); } -static inline int DQUOT_ALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr) +static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr) { - return DQUOT_ALLOC_SPACE_NODIRTY(inode, + return vfs_dq_alloc_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits); } -static inline int DQUOT_ALLOC_BLOCK(struct inode *inode, qsize_t nr) +static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr) { - return DQUOT_ALLOC_SPACE(inode, + return vfs_dq_alloc_space(inode, nr << inode->i_sb->s_blocksize_bits); } -static inline void DQUOT_FREE_BLOCK_NODIRTY(struct inode *inode, qsize_t nr) +static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr) { - DQUOT_FREE_SPACE_NODIRTY(inode, nr << inode->i_sb->s_blocksize_bits); + vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits); } -static inline void DQUOT_FREE_BLOCK(struct inode *inode, qsize_t nr) +static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr) { - DQUOT_FREE_SPACE(inode, nr << inode->i_sb->s_blocksize_bits); + vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits); } +/* + * Define uppercase equivalents for compatibility with old function names + * Can go away when we think all users have been converted (15/04/2008) + */ +#define DQUOT_INIT(inode) vfs_dq_init(inode) +#define DQUOT_DROP(inode) vfs_dq_drop(inode) +#define DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr) \ + vfs_dq_prealloc_space_nodirty(inode, nr) +#define DQUOT_PREALLOC_SPACE(inode, nr) vfs_dq_prealloc_space(inode, nr) +#define DQUOT_ALLOC_SPACE_NODIRTY(inode, nr) \ + vfs_dq_alloc_space_nodirty(inode, nr) +#define DQUOT_ALLOC_SPACE(inode, nr) vfs_dq_alloc_space(inode, nr) +#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) \ + vfs_dq_prealloc_block_nodirty(inode, nr) +#define DQUOT_PREALLOC_BLOCK(inode, nr) vfs_dq_prealloc_block(inode, nr) +#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) \ + vfs_dq_alloc_block_nodirty(inode, nr) +#define DQUOT_ALLOC_BLOCK(inode, nr) vfs_dq_alloc_block(inode, nr) +#define DQUOT_ALLOC_INODE(inode) vfs_dq_alloc_inode(inode) +#define DQUOT_FREE_SPACE_NODIRTY(inode, nr) \ + vfs_dq_free_space_nodirty(inode, nr) +#define DQUOT_FREE_SPACE(inode, nr) vfs_dq_free_space(inode, nr) +#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) \ + vfs_dq_free_block_nodirty(inode, nr) +#define DQUOT_FREE_BLOCK(inode, nr) vfs_dq_free_block(inode, nr) +#define DQUOT_FREE_INODE(inode) vfs_dq_free_inode(inode) +#define DQUOT_TRANSFER(inode, iattr) vfs_dq_transfer(inode, iattr) +#define DQUOT_SYNC(sb) vfs_dq_sync(sb) +#define DQUOT_OFF(sb, remount) vfs_dq_off(sb, remount) +#define DQUOT_ON_REMOUNT(sb) vfs_dq_quota_on_remount(sb) + #endif /* _LINUX_QUOTAOPS_ */ diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h new file mode 100644 index 00000000000..18a5b9ba9d4 --- /dev/null +++ b/include/linux/ratelimit.h @@ -0,0 +1,27 @@ +#ifndef _LINUX_RATELIMIT_H +#define _LINUX_RATELIMIT_H +#include <linux/param.h> + +#define DEFAULT_RATELIMIT_INTERVAL (5 * HZ) +#define DEFAULT_RATELIMIT_BURST 10 + +struct ratelimit_state { + int interval; + int burst; + int printed; + int missed; + unsigned long begin; +}; + +#define DEFINE_RATELIMIT_STATE(name, interval, burst) \ + struct ratelimit_state name = {interval, burst,} + +extern int __ratelimit(struct ratelimit_state *rs); + +static inline int ratelimit(void) +{ + static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL, + DEFAULT_RATELIMIT_BURST); + return __ratelimit(&rs); +} +#endif diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h index f04b64eca63..0967f03b070 100644 --- a/include/linux/rcupreempt.h +++ b/include/linux/rcupreempt.h @@ -115,16 +115,21 @@ DECLARE_PER_CPU(struct rcu_dyntick_sched, rcu_dyntick_sched); static inline void rcu_enter_nohz(void) { + static DEFINE_RATELIMIT_STATE(rs, 10 * HZ, 1); + smp_mb(); /* CPUs seeing ++ must see prior RCU read-side crit sects */ __get_cpu_var(rcu_dyntick_sched).dynticks++; - WARN_ON(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1); + WARN_ON_RATELIMIT(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1, &rs); } static inline void rcu_exit_nohz(void) { + static DEFINE_RATELIMIT_STATE(rs, 10 * HZ, 1); + smp_mb(); /* CPUs seeing ++ must see later RCU read-side crit sects */ __get_cpu_var(rcu_dyntick_sched).dynticks++; - WARN_ON(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1)); + WARN_ON_RATELIMIT(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1), + &rs); } #else /* CONFIG_NO_HZ */ diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index 4aacaeecb56..e9963af16cd 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -526,8 +526,8 @@ struct item_head { ** p is the array of __u32, i is the index into the array, v is the value ** to store there. */ -#define get_block_num(p, i) le32_to_cpu(get_unaligned((p) + (i))) -#define put_block_num(p, i, v) put_unaligned(cpu_to_le32(v), (p) + (i)) +#define get_block_num(p, i) get_unaligned_le32((p) + (i)) +#define put_block_num(p, i, v) put_unaligned_le32((v), (p) + (i)) // // in old version uniqueness field shows key type diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h index 336ee43ed7d..315517e8bfa 100644 --- a/include/linux/reiserfs_fs_sb.h +++ b/include/linux/reiserfs_fs_sb.h @@ -152,7 +152,7 @@ struct reiserfs_journal_list { atomic_t j_nonzerolen; atomic_t j_commit_left; atomic_t j_older_commits_done; /* all commits older than this on disk */ - struct semaphore j_commit_lock; + struct mutex j_commit_mutex; unsigned long j_trans_id; time_t j_timestamp; struct reiserfs_list_bitmap *j_list_bitmap; @@ -193,8 +193,8 @@ struct reiserfs_journal { struct buffer_head *j_header_bh; time_t j_trans_start_time; /* time this transaction started */ - struct semaphore j_lock; - struct semaphore j_flush_sem; + struct mutex j_mutex; + struct mutex j_flush_mutex; wait_queue_head_t j_join_wait; /* wait for current transaction to finish before starting new one */ atomic_t j_jlock; /* lock for j_join_wait */ int j_list_bitmap_index; /* number of next list bitmap to use */ diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h index 6d9e1fca098..fdeadd9740d 100644 --- a/include/linux/res_counter.h +++ b/include/linux/res_counter.h @@ -63,9 +63,14 @@ u64 res_counter_read_u64(struct res_counter *counter, int member); ssize_t res_counter_read(struct res_counter *counter, int member, const char __user *buf, size_t nbytes, loff_t *pos, int (*read_strategy)(unsigned long long val, char *s)); -ssize_t res_counter_write(struct res_counter *counter, int member, - const char __user *buf, size_t nbytes, loff_t *pos, - int (*write_strategy)(char *buf, unsigned long long *val)); + +typedef int (*write_strategy_fn)(const char *buf, unsigned long long *val); + +int res_counter_memparse_write_strategy(const char *buf, + unsigned long long *res); + +int res_counter_write(struct res_counter *counter, int member, + const char *buffer, write_strategy_fn write_strategy); /* * the field descriptors. one for each member of res_counter @@ -95,8 +100,10 @@ void res_counter_init(struct res_counter *counter); * counter->limit _locked call expects the counter->lock to be taken */ -int res_counter_charge_locked(struct res_counter *counter, unsigned long val); -int res_counter_charge(struct res_counter *counter, unsigned long val); +int __must_check res_counter_charge_locked(struct res_counter *counter, + unsigned long val); +int __must_check res_counter_charge(struct res_counter *counter, + unsigned long val); /* * uncharge - tell that some portion of the resource is released @@ -151,4 +158,20 @@ static inline void res_counter_reset_failcnt(struct res_counter *cnt) cnt->failcnt = 0; spin_unlock_irqrestore(&cnt->lock, flags); } + +static inline int res_counter_set_limit(struct res_counter *cnt, + unsigned long long limit) +{ + unsigned long flags; + int ret = -EBUSY; + + spin_lock_irqsave(&cnt->lock, flags); + if (cnt->usage < limit) { + cnt->limit = limit; + ret = 0; + } + spin_unlock_irqrestore(&cnt->lock, flags); + return ret; +} + #endif diff --git a/include/linux/sched.h b/include/linux/sched.h index 6aca4a16e37..42036ffe6b0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -506,6 +506,10 @@ struct signal_struct { unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw; unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt; unsigned long inblock, oublock, cinblock, coublock; +#ifdef CONFIG_TASK_XACCT + u64 rchar, wchar, syscr, syscw; +#endif + struct task_io_accounting ioac; /* * Cumulative ns of scheduled CPU time for dead threads in the @@ -668,6 +672,10 @@ struct task_delay_info { /* io operations performed */ u32 swapin_count; /* total count of the number of swapin block */ /* io operations performed */ + + struct timespec freepages_start, freepages_end; + u64 freepages_delay; /* wait for memory reclaim */ + u32 freepages_count; /* total count of memory reclaim */ }; #endif /* CONFIG_TASK_DELAY_ACCT */ @@ -1257,7 +1265,7 @@ struct task_struct { #if defined(CONFIG_TASK_XACCT) u64 acct_rss_mem1; /* accumulated rss usage */ u64 acct_vm_mem1; /* accumulated virtual memory usage */ - cputime_t acct_stimexpd;/* stime since last update */ + cputime_t acct_timexpd; /* stime + utime since last update */ #endif #ifdef CONFIG_CPUSETS nodemask_t mems_allowed; @@ -1496,7 +1504,7 @@ static inline void put_task_struct(struct task_struct *t) #define PF_KSWAPD 0x00040000 /* I am kswapd */ #define PF_SWAPOFF 0x00080000 /* I am in swapoff */ #define PF_LESS_THROTTLE 0x00100000 /* Throttle me less: I clean memory */ -#define PF_BORROWED_MM 0x00200000 /* I am a kthread doing use_mm */ +#define PF_KTHREAD 0x00200000 /* I am a kernel thread */ #define PF_RANDOMIZE 0x00400000 /* randomize virtual address space */ #define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */ #define PF_SPREAD_PAGE 0x01000000 /* Spread page cache over cpuset */ @@ -1715,19 +1723,13 @@ extern struct pid_namespace init_pid_ns; * finds a task by its pid in the specified namespace * find_task_by_vpid(): * finds a task by its virtual pid - * find_task_by_pid(): - * finds a task by its global pid * - * see also find_pid() etc in include/linux/pid.h + * see also find_vpid() etc in include/linux/pid.h */ extern struct task_struct *find_task_by_pid_type_ns(int type, int pid, struct pid_namespace *ns); -static inline struct task_struct *__deprecated find_task_by_pid(pid_t nr) -{ - return find_task_by_pid_type_ns(PIDTYPE_PID, nr, &init_pid_ns); -} extern struct task_struct *find_task_by_vpid(pid_t nr); extern struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns); @@ -1800,7 +1802,6 @@ extern void force_sig(int, struct task_struct *); extern void force_sig_specific(int, struct task_struct *); extern int send_sig(int, struct task_struct *, int); extern void zap_other_threads(struct task_struct *p); -extern int kill_proc(pid_t, int, int); extern struct sigqueue *sigqueue_alloc(void); extern void sigqueue_free(struct sigqueue *); extern int send_sigqueue(struct sigqueue *, struct task_struct *, int group); @@ -2054,9 +2055,6 @@ static inline int signal_pending_state(long state, struct task_struct *p) if (!signal_pending(p)) return 0; - if (state & (__TASK_STOPPED | __TASK_TRACED)) - return 0; - return (state & TASK_INTERRUPTIBLE) || __fatal_signal_pending(p); } diff --git a/include/linux/sem.h b/include/linux/sem.h index c8eaad9e4b7..1b191c176bc 100644 --- a/include/linux/sem.h +++ b/include/linux/sem.h @@ -78,6 +78,7 @@ struct seminfo { #ifdef __KERNEL__ #include <asm/atomic.h> +#include <linux/rcupdate.h> struct task_struct; @@ -93,23 +94,19 @@ struct sem_array { time_t sem_otime; /* last semop time */ time_t sem_ctime; /* last change time */ struct sem *sem_base; /* ptr to first semaphore in array */ - struct sem_queue *sem_pending; /* pending operations to be processed */ - struct sem_queue **sem_pending_last; /* last pending operation */ - struct sem_undo *undo; /* undo requests on this array */ + struct list_head sem_pending; /* pending operations to be processed */ + struct list_head list_id; /* undo requests on this array */ unsigned long sem_nsems; /* no. of semaphores in array */ }; /* One queue for each sleeping process in the system. */ struct sem_queue { - struct sem_queue * next; /* next entry in the queue */ - struct sem_queue ** prev; /* previous entry in the queue, *(q->prev) == q */ - struct task_struct* sleeper; /* this process */ - struct sem_undo * undo; /* undo structure */ + struct list_head list; /* queue of pending operations */ + struct task_struct *sleeper; /* this process */ + struct sem_undo *undo; /* undo structure */ int pid; /* process id of requesting process */ int status; /* completion status of operation */ - struct sem_array * sma; /* semaphore array for operations */ - int id; /* internal sem id */ - struct sembuf * sops; /* array of pending operations */ + struct sembuf *sops; /* array of pending operations */ int nsops; /* number of operations */ int alter; /* does the operation alter the array? */ }; @@ -118,8 +115,11 @@ struct sem_queue { * when the process exits. */ struct sem_undo { - struct sem_undo * proc_next; /* next entry on this process */ - struct sem_undo * id_next; /* next entry on this semaphore set */ + struct list_head list_proc; /* per-process list: all undos from one process. */ + /* rcu protected */ + struct rcu_head rcu; /* rcu struct for sem_undo() */ + struct sem_undo_list *ulp; /* sem_undo_list for the process */ + struct list_head list_id; /* per semaphore array list: all undos for one array */ int semid; /* semaphore set identifier */ short * semadj; /* array of adjustments, one per semaphore */ }; @@ -128,9 +128,9 @@ struct sem_undo { * that may be shared among all a CLONE_SYSVSEM task group. */ struct sem_undo_list { - atomic_t refcnt; - spinlock_t lock; - struct sem_undo *proc_list; + atomic_t refcnt; + spinlock_t lock; + struct list_head list_proc; }; struct sysv_sem { diff --git a/include/linux/sm501.h b/include/linux/sm501.h index b530fa6a1d3..214f93209b8 100644 --- a/include/linux/sm501.h +++ b/include/linux/sm501.h @@ -46,24 +46,6 @@ extern unsigned long sm501_modify_reg(struct device *dev, unsigned long set, unsigned long clear); -/* sm501_gpio_set - * - * set the state of the given GPIO line -*/ - -extern void sm501_gpio_set(struct device *dev, - unsigned long gpio, - unsigned int to, - unsigned int dir); - -/* sm501_gpio_get - * - * get the state of the given GPIO line -*/ - -extern unsigned long sm501_gpio_get(struct device *dev, - unsigned long gpio); - /* Platform data definitions */ @@ -104,11 +86,19 @@ struct sm501_platdata_fb { struct sm501_platdata_fbsub *fb_pnl; }; -/* gpio i2c */ +/* gpio i2c + * + * Note, we have to pass in the bus number, as the number used will be + * passed to the i2c-gpio driver's platform_device.id, subsequently used + * to register the i2c bus. +*/ struct sm501_platdata_gpio_i2c { + unsigned int bus_num; unsigned int pin_sda; unsigned int pin_scl; + int udelay; + int timeout; }; /* sm501_initdata @@ -131,6 +121,7 @@ struct sm501_reg_init { #define SM501_USE_FBACCEL (1<<6) #define SM501_USE_AC97 (1<<7) #define SM501_USE_I2S (1<<8) +#define SM501_USE_GPIO (1<<9) #define SM501_USE_ALL (0xffffffff) @@ -157,6 +148,8 @@ struct sm501_init_gpio { struct sm501_reg_init gpio_ddr_high; }; +#define SM501_FLAG_SUSPEND_OFF (1<<4) + /* sm501_platdata * * This is passed with the platform device to allow the board @@ -170,6 +163,12 @@ struct sm501_platdata { struct sm501_init_gpio *init_gpiop; struct sm501_platdata_fb *fb; + int flags; + int gpio_base; + + int (*get_power)(struct device *dev); + int (*set_power)(struct device *dev, unsigned int on); + struct sm501_platdata_gpio_i2c *gpio_i2c; unsigned int gpio_i2c_nr; }; diff --git a/include/linux/smb_fs.h b/include/linux/smb_fs.h index 2c5cd55f44f..923cd8a247b 100644 --- a/include/linux/smb_fs.h +++ b/include/linux/smb_fs.h @@ -43,18 +43,13 @@ static inline struct smb_inode_info *SMB_I(struct inode *inode) } /* macro names are short for word, double-word, long value (?) */ -#define WVAL(buf,pos) \ - (le16_to_cpu(get_unaligned((__le16 *)((u8 *)(buf) + (pos))))) -#define DVAL(buf,pos) \ - (le32_to_cpu(get_unaligned((__le32 *)((u8 *)(buf) + (pos))))) -#define LVAL(buf,pos) \ - (le64_to_cpu(get_unaligned((__le64 *)((u8 *)(buf) + (pos))))) -#define WSET(buf,pos,val) \ - put_unaligned(cpu_to_le16((u16)(val)), (__le16 *)((u8 *)(buf) + (pos))) -#define DSET(buf,pos,val) \ - put_unaligned(cpu_to_le32((u32)(val)), (__le32 *)((u8 *)(buf) + (pos))) -#define LSET(buf,pos,val) \ - put_unaligned(cpu_to_le64((u64)(val)), (__le64 *)((u8 *)(buf) + (pos))) +#define WVAL(buf, pos) (get_unaligned_le16((u8 *)(buf) + (pos))) +#define DVAL(buf, pos) (get_unaligned_le32((u8 *)(buf) + (pos))) +#define LVAL(buf, pos) (get_unaligned_le64((u8 *)(buf) + (pos))) + +#define WSET(buf, pos, val) put_unaligned_le16((val), (u8 *)(buf) + (pos)) +#define DSET(buf, pos, val) put_unaligned_le32((val), (u8 *)(buf) + (pos)) +#define LSET(buf, pos, val) put_unaligned_le64((val), (u8 *)(buf) + (pos)) /* where to find the base of the SMB packet proper */ #define smb_base(buf) ((u8 *)(((u8 *)(buf))+4)) diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h index 835ddf47d45..22ef107d770 100644 --- a/include/linux/spi/mcp23s08.h +++ b/include/linux/spi/mcp23s08.h @@ -1,18 +1,25 @@ -/* FIXME driver should be able to handle all four slaves that - * can be hooked up to each chipselect, as well as IRQs... - */ +/* FIXME driver should be able to handle IRQs... */ + +struct mcp23s08_chip_info { + bool is_present; /* true iff populated */ + u8 pullups; /* BIT(x) means enable pullup x */ +}; struct mcp23s08_platform_data { - /* four slaves can share one SPI chipselect */ - u8 slave; + /* Four slaves (numbered 0..3) can share one SPI chipselect, and + * will provide 8..32 GPIOs using 1..4 gpio_chip instances. + */ + struct mcp23s08_chip_info chip[4]; - /* number assigned to the first GPIO */ + /* "base" is the number of the first GPIO. Dynamic assignment is + * not currently supported, and even if there are gaps in chip + * addressing the GPIO numbers are sequential .. so for example + * if only slaves 0 and 3 are present, their GPIOs range from + * base to base+15. + */ unsigned base; - /* pins with pullups */ - u8 pullups; - void *context; /* param to setup/teardown */ int (*setup)(struct spi_device *spi, diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index d311a090fae..61e5610ad16 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -46,6 +46,7 @@ * linux/spinlock.h: builds the final spin_*() APIs. */ +#include <linux/typecheck.h> #include <linux/preempt.h> #include <linux/linkage.h> #include <linux/compiler.h> @@ -191,23 +192,53 @@ do { \ #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) -#define spin_lock_irqsave(lock, flags) flags = _spin_lock_irqsave(lock) -#define read_lock_irqsave(lock, flags) flags = _read_lock_irqsave(lock) -#define write_lock_irqsave(lock, flags) flags = _write_lock_irqsave(lock) +#define spin_lock_irqsave(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + flags = _spin_lock_irqsave(lock); \ + } while (0) +#define read_lock_irqsave(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + flags = _read_lock_irqsave(lock); \ + } while (0) +#define write_lock_irqsave(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + flags = _write_lock_irqsave(lock); \ + } while (0) #ifdef CONFIG_DEBUG_LOCK_ALLOC -#define spin_lock_irqsave_nested(lock, flags, subclass) \ - flags = _spin_lock_irqsave_nested(lock, subclass) +#define spin_lock_irqsave_nested(lock, flags, subclass) \ + do { \ + typecheck(unsigned long, flags); \ + flags = _spin_lock_irqsave_nested(lock, subclass); \ + } while (0) #else -#define spin_lock_irqsave_nested(lock, flags, subclass) \ - flags = _spin_lock_irqsave(lock) +#define spin_lock_irqsave_nested(lock, flags, subclass) \ + do { \ + typecheck(unsigned long, flags); \ + flags = _spin_lock_irqsave(lock); \ + } while (0) #endif #else -#define spin_lock_irqsave(lock, flags) _spin_lock_irqsave(lock, flags) -#define read_lock_irqsave(lock, flags) _read_lock_irqsave(lock, flags) -#define write_lock_irqsave(lock, flags) _write_lock_irqsave(lock, flags) +#define spin_lock_irqsave(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + _spin_lock_irqsave(lock, flags); \ + } while (0) +#define read_lock_irqsave(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + _read_lock_irqsave(lock, flags); \ + } while (0) +#define write_lock_irqsave(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + _write_lock_irqsave(lock, flags); \ + } while (0) #define spin_lock_irqsave_nested(lock, flags, subclass) \ spin_lock_irqsave(lock, flags) @@ -260,16 +291,25 @@ do { \ } while (0) #endif -#define spin_unlock_irqrestore(lock, flags) \ - _spin_unlock_irqrestore(lock, flags) +#define spin_unlock_irqrestore(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + _spin_unlock_irqrestore(lock, flags); \ + } while (0) #define spin_unlock_bh(lock) _spin_unlock_bh(lock) -#define read_unlock_irqrestore(lock, flags) \ - _read_unlock_irqrestore(lock, flags) +#define read_unlock_irqrestore(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + _read_unlock_irqrestore(lock, flags); \ + } while (0) #define read_unlock_bh(lock) _read_unlock_bh(lock) -#define write_unlock_irqrestore(lock, flags) \ - _write_unlock_irqrestore(lock, flags) +#define write_unlock_irqrestore(lock, flags) \ + do { \ + typecheck(unsigned long, flags); \ + _write_unlock_irqrestore(lock, flags); \ + } while (0) #define write_unlock_bh(lock) _write_unlock_bh(lock) #define spin_trylock_bh(lock) __cond_lock(lock, _spin_trylock_bh(lock)) diff --git a/include/linux/taskstats.h b/include/linux/taskstats.h index 5d69c0744ff..18269e956a7 100644 --- a/include/linux/taskstats.h +++ b/include/linux/taskstats.h @@ -31,7 +31,7 @@ */ -#define TASKSTATS_VERSION 6 +#define TASKSTATS_VERSION 7 #define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN * in linux/sched.h */ @@ -157,6 +157,10 @@ struct taskstats { __u64 ac_utimescaled; /* utime scaled on frequency etc */ __u64 ac_stimescaled; /* stime scaled on frequency etc */ __u64 cpu_scaled_run_real_total; /* scaled cpu_run_real_total */ + + /* Delay waiting for memory reclaim */ + __u64 freepages_count; + __u64 freepages_delay_total; }; diff --git a/include/linux/typecheck.h b/include/linux/typecheck.h new file mode 100644 index 00000000000..eb5b74a575b --- /dev/null +++ b/include/linux/typecheck.h @@ -0,0 +1,24 @@ +#ifndef TYPECHECK_H_INCLUDED +#define TYPECHECK_H_INCLUDED + +/* + * Check at compile time that something is of a particular type. + * Always evaluates to 1 so you may use it easily in comparisons. + */ +#define typecheck(type,x) \ +({ type __dummy; \ + typeof(x) __dummy2; \ + (void)(&__dummy == &__dummy2); \ + 1; \ +}) + +/* + * Check at compile time that 'function' is a certain type, or is a pointer + * to that type (needs to use typedef for the function type.) + */ +#define typecheck_fn(type,function) \ +({ typeof(type) __tmp = function; \ + (void)__tmp; \ +}) + +#endif /* TYPECHECK_H_INCLUDED */ diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 747c3a49cdc..c932390c6da 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -330,7 +330,7 @@ extern int usb_string_id(struct usb_composite_dev *c); dev_vdbg(&(d)->gadget->dev , fmt , ## args) #define ERROR(d, fmt, args...) \ dev_err(&(d)->gadget->dev , fmt , ## args) -#define WARN(d, fmt, args...) \ +#define WARNING(d, fmt, args...) \ dev_warn(&(d)->gadget->dev , fmt , ## args) #define INFO(d, fmt, args...) \ dev_info(&(d)->gadget->dev , fmt , ## args) diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h index 8eff0b53910..b3c4a60ceeb 100644 --- a/include/linux/virtio_9p.h +++ b/include/linux/virtio_9p.h @@ -1,5 +1,7 @@ #ifndef _LINUX_VIRTIO_9P_H #define _LINUX_VIRTIO_9P_H +/* This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. */ #include <linux/virtio_config.h> /* The ID for virtio console */ diff --git a/include/linux/virtio_balloon.h b/include/linux/virtio_balloon.h index 979524ee75b..c30c7bfbf39 100644 --- a/include/linux/virtio_balloon.h +++ b/include/linux/virtio_balloon.h @@ -1,5 +1,7 @@ #ifndef _LINUX_VIRTIO_BALLOON_H #define _LINUX_VIRTIO_BALLOON_H +/* This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. */ #include <linux/virtio_config.h> /* The ID for virtio_balloon */ diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h index 5f79a5f9de7..c1aef85243b 100644 --- a/include/linux/virtio_blk.h +++ b/include/linux/virtio_blk.h @@ -1,5 +1,7 @@ #ifndef _LINUX_VIRTIO_BLK_H #define _LINUX_VIRTIO_BLK_H +/* This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. */ #include <linux/virtio_config.h> /* The ID for virtio_block */ @@ -11,6 +13,7 @@ #define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */ #define VIRTIO_BLK_F_GEOMETRY 4 /* Legacy geometry available */ #define VIRTIO_BLK_F_RO 5 /* Disk is read-only */ +#define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/ struct virtio_blk_config { @@ -26,6 +29,8 @@ struct virtio_blk_config __u8 heads; __u8 sectors; } geometry; + /* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */ + __u32 blk_size; } __attribute__((packed)); /* These two define direction. */ diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index f364bbf63c3..bf8ec283b23 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -1,5 +1,8 @@ #ifndef _LINUX_VIRTIO_CONFIG_H #define _LINUX_VIRTIO_CONFIG_H +/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so + * anyone can use the definitions to implement compatible drivers/servers. */ + /* Virtio devices use a standardized configuration space to define their * features and pass configuration information, but each implementation can * store and access that space differently. */ @@ -15,6 +18,12 @@ /* We've given up on this device. */ #define VIRTIO_CONFIG_S_FAILED 0x80 +/* Some virtio feature bits (currently bits 28 through 31) are reserved for the + * transport being used (eg. virtio_ring), the rest are per-device feature + * bits. */ +#define VIRTIO_TRANSPORT_F_START 28 +#define VIRTIO_TRANSPORT_F_END 32 + /* Do we get callbacks when the ring is completely used, even if we've * suppressed them? */ #define VIRTIO_F_NOTIFY_ON_EMPTY 24 @@ -52,9 +61,10 @@ * @get_features: get the array of feature bits for this device. * vdev: the virtio_device * Returns the first 32 feature bits (all we currently need). - * @set_features: confirm what device features we'll be using. + * @finalize_features: confirm what device features we'll be using. * vdev: the virtio_device - * feature: the first 32 feature bits + * This gives the final feature bits for the device: it can change + * the dev->feature bits if it wants. */ struct virtio_config_ops { @@ -70,7 +80,7 @@ struct virtio_config_ops void (*callback)(struct virtqueue *)); void (*del_vq)(struct virtqueue *vq); u32 (*get_features)(struct virtio_device *vdev); - void (*set_features)(struct virtio_device *vdev, u32 features); + void (*finalize_features)(struct virtio_device *vdev); }; /* If driver didn't advertise the feature, it will never appear. */ diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h index ed2d4ead7eb..19a0da0dba4 100644 --- a/include/linux/virtio_console.h +++ b/include/linux/virtio_console.h @@ -1,6 +1,8 @@ #ifndef _LINUX_VIRTIO_CONSOLE_H #define _LINUX_VIRTIO_CONSOLE_H #include <linux/virtio_config.h> +/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so + * anyone can use the definitions to implement compatible drivers/servers. */ /* The ID for virtio console */ #define VIRTIO_ID_CONSOLE 3 diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 38c0571820f..5e33761b9b8 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -1,5 +1,7 @@ #ifndef _LINUX_VIRTIO_NET_H #define _LINUX_VIRTIO_NET_H +/* This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. */ #include <linux/virtio_config.h> /* The ID for virtio_net */ diff --git a/include/linux/virtio_pci.h b/include/linux/virtio_pci.h index b3151659cf4..cdef3574293 100644 --- a/include/linux/virtio_pci.h +++ b/include/linux/virtio_pci.h @@ -9,9 +9,8 @@ * Authors: * Anthony Liguori <aliguori@us.ibm.com> * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * + * This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. */ #ifndef _LINUX_VIRTIO_PCI_H diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index abe481ed990..c4a598fb382 100644 --- a/include/linux/virtio_ring.h +++ b/include/linux/virtio_ring.h @@ -120,6 +120,8 @@ struct virtqueue *vring_new_virtqueue(unsigned int num, void (*notify)(struct virtqueue *vq), void (*callback)(struct virtqueue *vq)); void vring_del_virtqueue(struct virtqueue *vq); +/* Filter out transport-specific feature bits. */ +void vring_transport_features(struct virtio_device *vdev); irqreturn_t vring_interrupt(int irq, void *_vq); #endif /* __KERNEL__ */ diff --git a/include/linux/virtio_rng.h b/include/linux/virtio_rng.h index 331afb6c9f6..1a85dab8a94 100644 --- a/include/linux/virtio_rng.h +++ b/include/linux/virtio_rng.h @@ -1,5 +1,7 @@ #ifndef _LINUX_VIRTIO_RNG_H #define _LINUX_VIRTIO_RNG_H +/* This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. */ #include <linux/virtio_config.h> /* The ID for virtio_rng */ diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 14d47120682..5c158c477ac 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -201,6 +201,8 @@ extern int keventd_up(void); extern void init_workqueues(void); int execute_in_process_context(work_func_t fn, struct execute_work *); +extern int flush_work(struct work_struct *work); + extern int cancel_work_sync(struct work_struct *work); /* diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index a7421f130cc..ccdc562e444 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -58,6 +58,13 @@ * device should be used. A &struct ubi_rsvol_req object has to be properly * filled and a pointer to it has to be passed to the IOCTL. * + * UBI volumes re-name + * ~~~~~~~~~~~~~~~~~~~ + * + * To re-name several volumes atomically at one go, the %UBI_IOCRNVOL command + * of the UBI character device should be used. A &struct ubi_rnvol_req object + * has to be properly filled and a pointer to it has to be passed to the IOCTL. + * * UBI volume update * ~~~~~~~~~~~~~~~~~ * @@ -104,6 +111,8 @@ #define UBI_IOCRMVOL _IOW(UBI_IOC_MAGIC, 1, int32_t) /* Re-size an UBI volume */ #define UBI_IOCRSVOL _IOW(UBI_IOC_MAGIC, 2, struct ubi_rsvol_req) +/* Re-name volumes */ +#define UBI_IOCRNVOL _IOW(UBI_IOC_MAGIC, 3, struct ubi_rnvol_req) /* IOCTL commands of the UBI control character device */ @@ -128,6 +137,9 @@ /* Maximum MTD device name length supported by UBI */ #define MAX_UBI_MTD_NAME_LEN 127 +/* Maximum amount of UBI volumes that can be re-named at one go */ +#define UBI_MAX_RNVOL 32 + /* * UBI data type hint constants. * @@ -176,20 +188,20 @@ enum { * it will be 512 in case of a 2KiB page NAND flash with 4 512-byte sub-pages. * * But in rare cases, if this optimizes things, the VID header may be placed to - * a different offset. For example, the boot-loader might do things faster if the - * VID header sits at the end of the first 2KiB NAND page with 4 sub-pages. As - * the boot-loader would not normally need to read EC headers (unless it needs - * UBI in RW mode), it might be faster to calculate ECC. This is weird example, - * but it real-life example. So, in this example, @vid_hdr_offer would be - * 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes - * aligned, which is OK, as UBI is clever enough to realize this is 4th sub-page - * of the first page and add needed padding. + * a different offset. For example, the boot-loader might do things faster if + * the VID header sits at the end of the first 2KiB NAND page with 4 sub-pages. + * As the boot-loader would not normally need to read EC headers (unless it + * needs UBI in RW mode), it might be faster to calculate ECC. This is weird + * example, but it real-life example. So, in this example, @vid_hdr_offer would + * be 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes + * aligned, which is OK, as UBI is clever enough to realize this is 4th + * sub-page of the first page and add needed padding. */ struct ubi_attach_req { int32_t ubi_num; int32_t mtd_num; int32_t vid_hdr_offset; - uint8_t padding[12]; + int8_t padding[12]; }; /** @@ -251,6 +263,48 @@ struct ubi_rsvol_req { } __attribute__ ((packed)); /** + * struct ubi_rnvol_req - volumes re-name request. + * @count: count of volumes to re-name + * @padding1: reserved for future, not used, has to be zeroed + * @vol_id: ID of the volume to re-name + * @name_len: name length + * @padding2: reserved for future, not used, has to be zeroed + * @name: new volume name + * + * UBI allows to re-name up to %32 volumes at one go. The count of volumes to + * re-name is specified in the @count field. The ID of the volumes to re-name + * and the new names are specified in the @vol_id and @name fields. + * + * The UBI volume re-name operation is atomic, which means that should power cut + * happen, the volumes will have either old name or new name. So the possible + * use-cases of this command is atomic upgrade. Indeed, to upgrade, say, volumes + * A and B one may create temporary volumes %A1 and %B1 with the new contents, + * then atomically re-name A1->A and B1->B, in which case old %A and %B will + * be removed. + * + * If it is not desirable to remove old A and B, the re-name request has to + * contain 4 entries: A1->A, A->A1, B1->B, B->B1, in which case old A1 and B1 + * become A and B, and old A and B will become A1 and B1. + * + * It is also OK to request: A1->A, A1->X, B1->B, B->Y, in which case old A1 + * and B1 become A and B, and old A and B become X and Y. + * + * In other words, in case of re-naming into an existing volume name, the + * existing volume is removed, unless it is re-named as well at the same + * re-name request. + */ +struct ubi_rnvol_req { + int32_t count; + int8_t padding1[12]; + struct { + int32_t vol_id; + int16_t name_len; + int8_t padding2[2]; + char name[UBI_MAX_VOLUME_NAME + 1]; + } ents[UBI_MAX_RNVOL]; +} __attribute__ ((packed)); + +/** * struct ubi_leb_change_req - a data structure used in atomic logical * eraseblock change requests. * @lnum: logical eraseblock number to change @@ -261,8 +315,8 @@ struct ubi_rsvol_req { struct ubi_leb_change_req { int32_t lnum; int32_t bytes; - uint8_t dtype; - uint8_t padding[7]; + int8_t dtype; + int8_t padding[7]; } __attribute__ ((packed)); #endif /* __UBI_USER_H__ */ diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h index dfd8bf66ce2..d364fd594ea 100644 --- a/include/net/ieee80211_radiotap.h +++ b/include/net/ieee80211_radiotap.h @@ -262,7 +262,7 @@ static inline int ieee80211_get_radiotap_len(unsigned char *data) struct ieee80211_radiotap_header *hdr = (struct ieee80211_radiotap_header *)data; - return le16_to_cpu(get_unaligned(&hdr->it_len)); + return get_unaligned_le16(&hdr->it_len); } #endif /* IEEE80211_RADIOTAP_H */ |