diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/Kbuild | 1 | ||||
| -rw-r--r-- | include/linux/compat.h | 3 | ||||
| -rw-r--r-- | include/linux/cpu.h | 1 | ||||
| -rw-r--r-- | include/linux/cred.h | 10 | ||||
| -rw-r--r-- | include/linux/dmaengine.h | 12 | ||||
| -rw-r--r-- | include/linux/eventfd.h | 2 | ||||
| -rw-r--r-- | include/linux/fs.h | 12 | ||||
| -rw-r--r-- | include/linux/ipc_namespace.h | 42 | ||||
| -rw-r--r-- | include/linux/kcmp.h | 17 | ||||
| -rw-r--r-- | include/linux/kernel.h | 1 | ||||
| -rw-r--r-- | include/linux/kexec.h | 75 | ||||
| -rw-r--r-- | include/linux/kmod.h | 34 | ||||
| -rw-r--r-- | include/linux/msdos_fs.h | 3 | ||||
| -rw-r--r-- | include/linux/prctl.h | 6 | ||||
| -rw-r--r-- | include/linux/rio.h | 47 | ||||
| -rw-r--r-- | include/linux/rio_drv.h | 9 | ||||
| -rw-r--r-- | include/linux/slab.h | 2 | ||||
| -rw-r--r-- | include/linux/syscalls.h | 2 |
18 files changed, 206 insertions, 73 deletions
diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 7185b8f15ced..8760be30b375 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -226,6 +226,7 @@ header-y += kdev_t.h header-y += kernel.h header-y += kernelcapi.h header-y += kernel-page-flags.h +header-y += kexec.h header-y += keyboard.h header-y += keyctl.h header-y += l2tp.h diff --git a/include/linux/compat.h b/include/linux/compat.h index 5d46217f84ad..4e890394ef99 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -577,8 +577,7 @@ extern ssize_t compat_rw_copy_check_uvector(int type, const struct compat_iovec __user *uvector, unsigned long nr_segs, unsigned long fast_segs, struct iovec *fast_pointer, - struct iovec **ret_pointer, - int check_access); + struct iovec **ret_pointer); extern void __user *compat_alloc_user_space(unsigned long len); diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 7230bb59a06f..2e9b9ebbeb78 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -177,6 +177,7 @@ extern void put_online_cpus(void); #define hotcpu_notifier(fn, pri) cpu_notifier(fn, pri) #define register_hotcpu_notifier(nb) register_cpu_notifier(nb) #define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb) +void clear_tasks_mm_cpumask(int cpu); int cpu_down(unsigned int cpu); #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE diff --git a/include/linux/cred.h b/include/linux/cred.h index 917dc5aeb1d4..ebbed2ce6637 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -277,17 +277,13 @@ static inline void put_cred(const struct cred *_cred) * @task: The task to query * * Access the objective credentials of a task. The caller must hold the RCU - * readlock or the task must be dead and unable to change its own credentials. + * readlock. * * The result of this function should not be passed directly to get_cred(); * rather get_task_cred() should be used instead. */ -#define __task_cred(task) \ - ({ \ - const struct task_struct *__t = (task); \ - rcu_dereference_check(__t->real_cred, \ - task_is_dead(__t)); \ - }) +#define __task_cred(task) \ + rcu_dereference((task)->real_cred) /** * get_current_cred - Get the current task's subjective credentials diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index d3fec584e8c3..56377df39124 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -635,6 +635,18 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_sg( dir, flags, NULL); } +#ifdef CONFIG_RAPIDIO_DMA_ENGINE +struct rio_dma_ext; +static inline struct dma_async_tx_descriptor *dmaengine_prep_rio_sg( + struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, + enum dma_transfer_direction dir, unsigned long flags, + struct rio_dma_ext *rio_ext) +{ + return chan->device->device_prep_slave_sg(chan, sgl, sg_len, + dir, flags, rio_ext); +} +#endif + static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction dir) diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h index 91bb4f27238c..3c3ef19a625a 100644 --- a/include/linux/eventfd.h +++ b/include/linux/eventfd.h @@ -34,7 +34,7 @@ void eventfd_ctx_put(struct eventfd_ctx *ctx); struct file *eventfd_fget(int fd); struct eventfd_ctx *eventfd_ctx_fdget(int fd); struct eventfd_ctx *eventfd_ctx_fileget(struct file *file); -int eventfd_signal(struct eventfd_ctx *ctx, int n); +__u64 eventfd_signal(struct eventfd_ctx *ctx, __u64 n); ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, __u64 *cnt); int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_t *wait, __u64 *cnt); diff --git a/include/linux/fs.h b/include/linux/fs.h index 598a5892ff2b..40887afaaca7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -173,6 +173,15 @@ struct inodes_stat_t { #define WRITE_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FUA) #define WRITE_FLUSH_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH | REQ_FUA) + +/* + * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector + * that indicates that they should check the contents of the iovec are + * valid, but not check the memory that the iovec elements + * points too. + */ +#define CHECK_IOVEC_ONLY -1 + #define SEL_IN 1 #define SEL_OUT 2 #define SEL_EX 4 @@ -1690,8 +1699,7 @@ struct seq_file; ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector, unsigned long nr_segs, unsigned long fast_segs, struct iovec *fast_pointer, - struct iovec **ret_pointer, - int check_access); + struct iovec **ret_pointer); extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *); extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *); diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index 8a297a5e794c..5499c92a9153 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -62,6 +62,8 @@ struct ipc_namespace { unsigned int mq_queues_max; /* initialized to DFLT_QUEUESMAX */ unsigned int mq_msg_max; /* initialized to DFLT_MSGMAX */ unsigned int mq_msgsize_max; /* initialized to DFLT_MSGSIZEMAX */ + unsigned int mq_msg_default; + unsigned int mq_msgsize_default; /* user_ns which owns the ipc ns */ struct user_namespace *user_ns; @@ -90,11 +92,41 @@ static inline void shm_destroy_orphaned(struct ipc_namespace *ns) {} #ifdef CONFIG_POSIX_MQUEUE extern int mq_init_ns(struct ipc_namespace *ns); -/* default values */ -#define DFLT_QUEUESMAX 256 /* max number of message queues */ -#define DFLT_MSGMAX 10 /* max number of messages in each queue */ -#define HARD_MSGMAX (32768*sizeof(void *)/4) -#define DFLT_MSGSIZEMAX 8192 /* max message size */ +/* + * POSIX Message Queue default values: + * + * MIN_*: Lowest value an admin can set the maximum unprivileged limit to + * DFLT_*MAX: Default values for the maximum unprivileged limits + * DFLT_{MSG,MSGSIZE}: Default values used when the user doesn't supply + * an attribute to the open call and the queue must be created + * HARD_*: Highest value the maximums can be set to. These are enforced + * on CAP_SYS_RESOURCE apps as well making them inviolate (so make them + * suitably high) + * + * POSIX Requirements: + * Per app minimum openable message queues - 8. This does not map well + * to the fact that we limit the number of queues on a per namespace + * basis instead of a per app basis. So, make the default high enough + * that no given app should have a hard time opening 8 queues. + * Minimum maximum for HARD_MSGMAX - 32767. I bumped this to 65536. + * Minimum maximum for HARD_MSGSIZEMAX - POSIX is silent on this. However, + * we have run into a situation where running applications in the wild + * require this to be at least 5MB, and preferably 10MB, so I set the + * value to 16MB in hopes that this user is the worst of the bunch and + * the new maximum will handle anyone else. I may have to revisit this + * in the future. + */ +#define MIN_QUEUESMAX 1 +#define DFLT_QUEUESMAX 256 +#define HARD_QUEUESMAX 1024 +#define MIN_MSGMAX 1 +#define DFLT_MSG 10U +#define DFLT_MSGMAX 10 +#define HARD_MSGMAX 65536 +#define MIN_MSGSIZEMAX 128 +#define DFLT_MSGSIZE 8192U +#define DFLT_MSGSIZEMAX 8192 +#define HARD_MSGSIZEMAX (16*1024*1024) #else static inline int mq_init_ns(struct ipc_namespace *ns) { return 0; } #endif diff --git a/include/linux/kcmp.h b/include/linux/kcmp.h new file mode 100644 index 000000000000..2dcd1b3aafc8 --- /dev/null +++ b/include/linux/kcmp.h @@ -0,0 +1,17 @@ +#ifndef _LINUX_KCMP_H +#define _LINUX_KCMP_H + +/* Comparison type */ +enum kcmp_type { + KCMP_FILE, + KCMP_VM, + KCMP_FILES, + KCMP_FS, + KCMP_SIGHAND, + KCMP_IO, + KCMP_SYSVSEM, + + KCMP_TYPES, +}; + +#endif /* _LINUX_KCMP_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index ec55a3c8ba77..e07f5e0c5df4 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -35,6 +35,7 @@ #define LLONG_MAX ((long long)(~0ULL>>1)) #define LLONG_MIN (-LLONG_MAX - 1) #define ULLONG_MAX (~0ULL) +#define SIZE_MAX (~(size_t)0) #define STACK_MAGIC 0xdeadbeef diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 0d7d6a1b172f..37c5f7261142 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -1,8 +1,58 @@ #ifndef LINUX_KEXEC_H #define LINUX_KEXEC_H -#ifdef CONFIG_KEXEC +/* kexec system call - It loads the new kernel to boot into. + * kexec does not sync, or unmount filesystems so if you need + * that to happen you need to do that yourself. + */ + #include <linux/types.h> + +/* kexec flags for different usage scenarios */ +#define KEXEC_ON_CRASH 0x00000001 +#define KEXEC_PRESERVE_CONTEXT 0x00000002 +#define KEXEC_ARCH_MASK 0xffff0000 + +/* These values match the ELF architecture values. + * Unless there is a good reason that should continue to be the case. + */ +#define KEXEC_ARCH_DEFAULT ( 0 << 16) +#define KEXEC_ARCH_386 ( 3 << 16) +#define KEXEC_ARCH_X86_64 (62 << 16) +#define KEXEC_ARCH_PPC (20 << 16) +#define KEXEC_ARCH_PPC64 (21 << 16) +#define KEXEC_ARCH_IA_64 (50 << 16) +#define KEXEC_ARCH_ARM (40 << 16) +#define KEXEC_ARCH_S390 (22 << 16) +#define KEXEC_ARCH_SH (42 << 16) +#define KEXEC_ARCH_MIPS_LE (10 << 16) +#define KEXEC_ARCH_MIPS ( 8 << 16) + +/* The artificial cap on the number of segments passed to kexec_load. */ +#define KEXEC_SEGMENT_MAX 16 + +#ifndef __KERNEL__ +/* + * This structure is used to hold the arguments that are used when + * loading kernel binaries. + */ +struct kexec_segment { + const void *buf; + size_t bufsz; + const void *mem; + size_t memsz; +}; + +/* Load a new kernel image as described by the kexec_segment array + * consisting of passed number of segments at the entry-point address. + * The flags allow different useage types. + */ +extern int kexec_load(void *, size_t, struct kexec_segment *, + unsigned long int); +#endif /* __KERNEL__ */ + +#ifdef __KERNEL__ +#ifdef CONFIG_KEXEC #include <linux/list.h> #include <linux/linkage.h> #include <linux/compat.h> @@ -67,11 +117,10 @@ typedef unsigned long kimage_entry_t; #define IND_DONE 0x4 #define IND_SOURCE 0x8 -#define KEXEC_SEGMENT_MAX 16 struct kexec_segment { void __user *buf; size_t bufsz; - unsigned long mem; /* User space sees this as a (void *) ... */ + unsigned long mem; size_t memsz; }; @@ -175,25 +224,6 @@ extern struct kimage *kexec_crash_image; #define kexec_flush_icache_page(page) #endif -#define KEXEC_ON_CRASH 0x00000001 -#define KEXEC_PRESERVE_CONTEXT 0x00000002 -#define KEXEC_ARCH_MASK 0xffff0000 - -/* These values match the ELF architecture values. - * Unless there is a good reason that should continue to be the case. - */ -#define KEXEC_ARCH_DEFAULT ( 0 << 16) -#define KEXEC_ARCH_386 ( 3 << 16) -#define KEXEC_ARCH_X86_64 (62 << 16) -#define KEXEC_ARCH_PPC (20 << 16) -#define KEXEC_ARCH_PPC64 (21 << 16) -#define KEXEC_ARCH_IA_64 (50 << 16) -#define KEXEC_ARCH_ARM (40 << 16) -#define KEXEC_ARCH_S390 (22 << 16) -#define KEXEC_ARCH_SH (42 << 16) -#define KEXEC_ARCH_MIPS_LE (10 << 16) -#define KEXEC_ARCH_MIPS ( 8 << 16) - /* List of defined/legal kexec flags */ #ifndef CONFIG_KEXEC_JUMP #define KEXEC_FLAGS KEXEC_ON_CRASH @@ -228,4 +258,5 @@ struct task_struct; static inline void crash_kexec(struct pt_regs *regs) { } static inline int kexec_should_crash(struct task_struct *p) { return 0; } #endif /* CONFIG_KEXEC */ +#endif /* __KERNEL__ */ #endif /* LINUX_KEXEC_H */ diff --git a/include/linux/kmod.h b/include/linux/kmod.h index dd99c329e161..5398d5807075 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -66,40 +66,10 @@ struct subprocess_info { void *data; }; -/* Allocate a subprocess_info structure */ -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_setfns(struct subprocess_info *info, - int (*init)(struct subprocess_info *info, struct cred *new), - void (*cleanup)(struct subprocess_info *info), - void *data); - -/* Actually execute the sub-process */ -int call_usermodehelper_exec(struct subprocess_info *info, int wait); - -/* Free the subprocess_info. This is only needed if you're not going - to call call_usermodehelper_exec */ -void call_usermodehelper_freeinfo(struct subprocess_info *info); - -static inline int +extern int call_usermodehelper_fns(char *path, char **argv, char **envp, int wait, int (*init)(struct subprocess_info *info, struct cred *new), - void (*cleanup)(struct subprocess_info *), void *data) -{ - struct subprocess_info *info; - gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL; - - info = call_usermodehelper_setup(path, argv, envp, gfp_mask); - - if (info == NULL) - return -ENOMEM; - - call_usermodehelper_setfns(info, init, cleanup, data); - - return call_usermodehelper_exec(info, wait); -} + void (*cleanup)(struct subprocess_info *), void *data); static inline int call_usermodehelper(char *path, char **argv, char **envp, int wait) diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h index 34066e65fdeb..11cc2ac67e75 100644 --- a/include/linux/msdos_fs.h +++ b/include/linux/msdos_fs.h @@ -21,8 +21,9 @@ #define CT_LE_W(v) cpu_to_le16(v) #define CT_LE_L(v) cpu_to_le32(v) +#define MSDOS_ROOT_INO 1 /* The root inode number */ +#define MSDOS_FSINFO_INO 2 /* Used for managing the FSINFO block */ -#define MSDOS_ROOT_INO 1 /* == MINIX_ROOT_INO */ #define MSDOS_DIR_BITS 5 /* log2(sizeof(struct msdos_dir_entry)) */ /* directory limit */ diff --git a/include/linux/prctl.h b/include/linux/prctl.h index 78b76e24cc7e..711e0a30aacc 100644 --- a/include/linux/prctl.h +++ b/include/linux/prctl.h @@ -113,6 +113,12 @@ # define PR_SET_MM_START_STACK 5 # define PR_SET_MM_START_BRK 6 # define PR_SET_MM_BRK 7 +# define PR_SET_MM_ARG_START 8 +# define PR_SET_MM_ARG_END 9 +# define PR_SET_MM_ENV_START 10 +# define PR_SET_MM_ENV_END 11 +# define PR_SET_MM_AUXV 12 +# define PR_SET_MM_EXE_FILE 13 /* * Set specific pid that is allowed to ptrace the current task. diff --git a/include/linux/rio.h b/include/linux/rio.h index 4d50611112ba..a90ebadd9da0 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -20,6 +20,9 @@ #include <linux/errno.h> #include <linux/device.h> #include <linux/rio_regs.h> +#ifdef CONFIG_RAPIDIO_DMA_ENGINE +#include <linux/dmaengine.h> +#endif #define RIO_NO_HOPCOUNT -1 #define RIO_INVALID_DESTID 0xffff @@ -254,6 +257,9 @@ struct rio_mport { u32 phys_efptr; unsigned char name[40]; void *priv; /* Master port private data */ +#ifdef CONFIG_RAPIDIO_DMA_ENGINE + struct dma_device dma; +#endif }; /** @@ -395,6 +401,47 @@ union rio_pw_msg { u32 raw[RIO_PW_MSG_SIZE/sizeof(u32)]; }; +#ifdef CONFIG_RAPIDIO_DMA_ENGINE + +/** + * enum rio_write_type - RIO write transaction types used in DMA transfers + * + * Note: RapidIO specification defines write (NWRITE) and + * write-with-response (NWRITE_R) data transfer operations. + * Existing DMA controllers that service RapidIO may use one of these operations + * for entire data transfer or their combination with only the last data packet + * requires response. + */ +enum rio_write_type { + RDW_DEFAULT, /* default method used by DMA driver */ + RDW_ALL_NWRITE, /* all packets use NWRITE */ + RDW_ALL_NWRITE_R, /* all packets use NWRITE_R */ + RDW_LAST_NWRITE_R, /* last packet uses NWRITE_R, others - NWRITE */ +}; + +struct rio_dma_ext { + u16 destid; + u64 rio_addr; /* low 64-bits of 66-bit RapidIO address */ + u8 rio_addr_u; /* upper 2-bits of 66-bit RapidIO address */ + enum rio_write_type wr_type; /* preferred RIO write operation type */ +}; + +struct rio_dma_data { + /* Local data (as scatterlist) */ + struct scatterlist *sg; /* I/O scatter list */ + unsigned int sg_len; /* size of scatter list */ + /* Remote device address (flat buffer) */ + u64 rio_addr; /* low 64-bits of 66-bit RapidIO address */ + u8 rio_addr_u; /* upper 2-bits of 66-bit RapidIO address */ + enum rio_write_type wr_type; /* preferred RIO write operation type */ +}; + +static inline struct rio_mport *dma_to_mport(struct dma_device *ddev) +{ + return container_of(ddev, struct rio_mport, dma); +} +#endif /* CONFIG_RAPIDIO_DMA_ENGINE */ + /* Architecture and hardware-specific functions */ extern int rio_register_mport(struct rio_mport *); extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int); diff --git a/include/linux/rio_drv.h b/include/linux/rio_drv.h index 7f07470e1ed9..31ad146be316 100644 --- a/include/linux/rio_drv.h +++ b/include/linux/rio_drv.h @@ -377,6 +377,15 @@ void rio_unregister_driver(struct rio_driver *); struct rio_dev *rio_dev_get(struct rio_dev *); void rio_dev_put(struct rio_dev *); +#ifdef CONFIG_RAPIDIO_DMA_ENGINE +extern struct dma_chan *rio_request_dma(struct rio_dev *rdev); +extern void rio_release_dma(struct dma_chan *dchan); +extern struct dma_async_tx_descriptor *rio_dma_prep_slave_sg( + struct rio_dev *rdev, struct dma_chan *dchan, + struct rio_dma_data *data, + enum dma_transfer_direction direction, unsigned long flags); +#endif + /** * rio_name - Get the unique RIO device identifier * @rdev: RIO device diff --git a/include/linux/slab.h b/include/linux/slab.h index a595dce6b0c7..67d5d94b783a 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -242,7 +242,7 @@ size_t ksize(const void *); */ static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags) { - if (size != 0 && n > ULONG_MAX / size) + if (size != 0 && n > SIZE_MAX / size) return NULL; return __kmalloc(n * size, flags); } diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 3de3acb84a95..19439c75c5b2 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -858,4 +858,6 @@ asmlinkage long sys_process_vm_writev(pid_t pid, unsigned long riovcnt, unsigned long flags); +asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, + unsigned long idx1, unsigned long idx2); #endif |