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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-17 20:58:12 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-17 20:58:12 -0800
commit848b81415c42ff3dc9a4204749087b015c37ef66 (patch)
tree391da3a73aea48632248220d2d6b8d45a88f7eae /include
parent992956189de58cae9f2be40585bc25105cd7c5ad (diff)
parent6fd59a83b9261fa53eaf98fb5514abba504a3ea3 (diff)
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Merge branch 'akpm' (Andrew's patch-bomb)
Merge misc patches from Andrew Morton: "Incoming: - lots of misc stuff - backlight tree updates - lib/ updates - Oleg's percpu-rwsem changes - checkpatch - rtc - aoe - more checkpoint/restart support I still have a pile of MM stuff pending - Pekka should be merging later today after which that is good to go. A number of other things are twiddling thumbs awaiting maintainer merges." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (180 commits) scatterlist: don't BUG when we can trivially return a proper error. docs: update documentation about /proc/<pid>/fdinfo/<fd> fanotify output fs, fanotify: add @mflags field to fanotify output docs: add documentation about /proc/<pid>/fdinfo/<fd> output fs, notify: add procfs fdinfo helper fs, exportfs: add exportfs_encode_inode_fh() helper fs, exportfs: escape nil dereference if no s_export_op present fs, epoll: add procfs fdinfo helper fs, eventfd: add procfs fdinfo helper procfs: add ability to plug in auxiliary fdinfo providers tools/testing/selftests/kcmp/kcmp_test.c: print reason for failure in kcmp_test breakpoint selftests: print failure status instead of cause make error kcmp selftests: print fail status instead of cause make error kcmp selftests: make run_tests fix mem-hotplug selftests: print failure status instead of cause make error cpu-hotplug selftests: print failure status instead of cause make error mqueue selftests: print failure status instead of cause make error vm selftests: print failure status instead of cause make error ubifs: use prandom_bytes mtd: nandsim: use prandom_bytes ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/io.h12
-rw-r--r--include/linux/backlight.h10
-rw-r--r--include/linux/binfmts.h2
-rw-r--r--include/linux/compat.h3
-rw-r--r--include/linux/compiler.h2
-rw-r--r--include/linux/exportfs.h2
-rw-r--r--include/linux/fs.h16
-rw-r--r--include/linux/ftrace.h4
-rw-r--r--include/linux/init.h40
-rw-r--r--include/linux/kernel.h33
-rw-r--r--include/linux/percpu-rwsem.h91
-rw-r--r--include/linux/platform_data/lp855x.h9
-rw-r--r--include/linux/proc_fs.h3
-rw-r--r--include/linux/ptrace.h2
-rw-r--r--include/linux/random.h19
-rw-r--r--include/linux/sched.h6
-rw-r--r--include/linux/string.h11
-rw-r--r--include/linux/syscalls.h4
-rw-r--r--include/uapi/linux/ptrace.h5
19 files changed, 145 insertions, 129 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 9e0ebe05124..d1e93284d72 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -154,7 +154,7 @@ static inline void insb(unsigned long addr, void *buffer, int count)
if (count) {
u8 *buf = buffer;
do {
- u8 x = inb(addr);
+ u8 x = __raw_readb(addr + PCI_IOBASE);
*buf++ = x;
} while (--count);
}
@@ -167,7 +167,7 @@ static inline void insw(unsigned long addr, void *buffer, int count)
if (count) {
u16 *buf = buffer;
do {
- u16 x = inw(addr);
+ u16 x = __raw_readw(addr + PCI_IOBASE);
*buf++ = x;
} while (--count);
}
@@ -180,7 +180,7 @@ static inline void insl(unsigned long addr, void *buffer, int count)
if (count) {
u32 *buf = buffer;
do {
- u32 x = inl(addr);
+ u32 x = __raw_readl(addr + PCI_IOBASE);
*buf++ = x;
} while (--count);
}
@@ -193,7 +193,7 @@ static inline void outsb(unsigned long addr, const void *buffer, int count)
if (count) {
const u8 *buf = buffer;
do {
- outb(*buf++, addr);
+ __raw_writeb(*buf++, addr + PCI_IOBASE);
} while (--count);
}
}
@@ -205,7 +205,7 @@ static inline void outsw(unsigned long addr, const void *buffer, int count)
if (count) {
const u16 *buf = buffer;
do {
- outw(*buf++, addr);
+ __raw_writew(*buf++, addr + PCI_IOBASE);
} while (--count);
}
}
@@ -217,7 +217,7 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
if (count) {
const u32 *buf = buffer;
do {
- outl(*buf++, addr);
+ __raw_writel(*buf++, addr + PCI_IOBASE);
} while (--count);
}
}
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 5ffc6dda467..da9a0825e00 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -134,4 +134,14 @@ struct generic_bl_info {
void (*kick_battery)(void);
};
+#ifdef CONFIG_OF
+struct backlight_device *of_find_backlight_by_node(struct device_node *node);
+#else
+static inline struct backlight_device *
+of_find_backlight_by_node(struct device_node *node)
+{
+ return NULL;
+}
+#endif
+
#endif
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 2630c9b41a8..a4c2b565c83 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -54,8 +54,6 @@ struct linux_binprm {
#define BINPRM_FLAGS_EXECFD_BIT 1
#define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT)
-#define BINPRM_MAX_RECURSION 4
-
/* Function parameter for binfmt->coredump */
struct coredump_params {
siginfo_t *siginfo;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 784ebfe63c4..e4920bd58a4 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -588,6 +588,9 @@ asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
compat_off_t __user *offset, compat_size_t count);
+asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
+ struct compat_timespec __user *interval);
+
#else
#define is_compat_task() (0)
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index f430e4162f4..b121554f1fe 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -10,6 +10,7 @@
# define __force __attribute__((force))
# define __nocast __attribute__((nocast))
# define __iomem __attribute__((noderef, address_space(2)))
+# define __must_hold(x) __attribute__((context(x,1,1)))
# define __acquires(x) __attribute__((context(x,0,1)))
# define __releases(x) __attribute__((context(x,1,0)))
# define __acquire(x) __context__(x,1)
@@ -33,6 +34,7 @@ extern void __chk_io_ptr(const volatile void __iomem *);
# define __chk_user_ptr(x) (void)0
# define __chk_io_ptr(x) (void)0
# define __builtin_warning(x, y...) (1)
+# define __must_hold(x)
# define __acquires(x)
# define __releases(x)
# define __acquire(x) (void)0
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 12291a7ee27..c7e6b6392ab 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -177,6 +177,8 @@ struct export_operations {
int (*commit_metadata)(struct inode *inode);
};
+extern int exportfs_encode_inode_fh(struct inode *inode, struct fid *fid,
+ int *max_len, struct inode *parent);
extern int exportfs_encode_fh(struct dentry *dentry, struct fid *fid,
int *max_len, int connectable);
extern struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 035521b4652..a823d4be38e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -44,6 +44,7 @@ struct vm_area_struct;
struct vfsmount;
struct cred;
struct swap_info_struct;
+struct seq_file;
extern void __init inode_init(void);
extern void __init inode_init_early(void);
@@ -1543,6 +1544,7 @@ struct file_operations {
int (*setlease)(struct file *, long, struct file_lock **);
long (*fallocate)(struct file *file, int mode, loff_t offset,
loff_t len);
+ int (*show_fdinfo)(struct seq_file *m, struct file *f);
};
struct inode_operations {
@@ -1578,8 +1580,6 @@ struct inode_operations {
umode_t create_mode, int *opened);
} ____cacheline_aligned;
-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,
@@ -2288,9 +2288,9 @@ extern ino_t find_inode_number(struct dentry *, struct qstr *);
#include <linux/err.h>
/* needed for stackable file system support */
-extern loff_t default_llseek(struct file *file, loff_t offset, int origin);
+extern loff_t default_llseek(struct file *file, loff_t offset, int whence);
-extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin);
+extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
extern int inode_init_always(struct super_block *, struct inode *);
extern void inode_init_once(struct inode *);
@@ -2398,11 +2398,11 @@ extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
extern void
file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
-extern loff_t noop_llseek(struct file *file, loff_t offset, int origin);
-extern loff_t no_llseek(struct file *file, loff_t offset, int origin);
-extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin);
+extern loff_t noop_llseek(struct file *file, loff_t offset, int whence);
+extern loff_t no_llseek(struct file *file, loff_t offset, int whence);
+extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence);
extern loff_t generic_file_llseek_size(struct file *file, loff_t offset,
- int origin, loff_t maxsize, loff_t eof);
+ int whence, loff_t maxsize, loff_t eof);
extern int generic_file_open(struct inode * inode, struct file * filp);
extern int nonseekable_open(struct inode * inode, struct file * filp);
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a52f2f4fe03..92691d85c32 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -394,7 +394,7 @@ ssize_t ftrace_filter_write(struct file *file, const char __user *ubuf,
size_t cnt, loff_t *ppos);
ssize_t ftrace_notrace_write(struct file *file, const char __user *ubuf,
size_t cnt, loff_t *ppos);
-loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int origin);
+loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int whence);
int ftrace_regex_release(struct inode *inode, struct file *file);
void __init
@@ -559,7 +559,7 @@ static inline ssize_t ftrace_filter_write(struct file *file, const char __user *
size_t cnt, loff_t *ppos) { return -ENODEV; }
static inline ssize_t ftrace_notrace_write(struct file *file, const char __user *ubuf,
size_t cnt, loff_t *ppos) { return -ENODEV; }
-static inline loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int origin)
+static inline loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int whence)
{
return -ENODEV;
}
diff --git a/include/linux/init.h b/include/linux/init.h
index f63692d6902..a799273714a 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -182,16 +182,16 @@ extern bool initcall_debug;
* can point at the same handler without causing duplicate-symbol build errors.
*/
-#define __define_initcall(level,fn,id) \
+#define __define_initcall(fn, id) \
static initcall_t __initcall_##fn##id __used \
- __attribute__((__section__(".initcall" level ".init"))) = fn
+ __attribute__((__section__(".initcall" #id ".init"))) = fn
/*
* Early initcalls run before initializing SMP.
*
* Only for built-in code, not modules.
*/
-#define early_initcall(fn) __define_initcall("early",fn,early)
+#define early_initcall(fn) __define_initcall(fn, early)
/*
* A "pure" initcall has no dependencies on anything else, and purely
@@ -200,23 +200,23 @@ extern bool initcall_debug;
* This only exists for built-in code, not for modules.
* Keep main.c:initcall_level_names[] in sync.
*/
-#define pure_initcall(fn) __define_initcall("0",fn,0)
-
-#define core_initcall(fn) __define_initcall("1",fn,1)
-#define core_initcall_sync(fn) __define_initcall("1s",fn,1s)
-#define postcore_initcall(fn) __define_initcall("2",fn,2)
-#define postcore_initcall_sync(fn) __define_initcall("2s",fn,2s)
-#define arch_initcall(fn) __define_initcall("3",fn,3)
-#define arch_initcall_sync(fn) __define_initcall("3s",fn,3s)
-#define subsys_initcall(fn) __define_initcall("4",fn,4)
-#define subsys_initcall_sync(fn) __define_initcall("4s",fn,4s)
-#define fs_initcall(fn) __define_initcall("5",fn,5)
-#define fs_initcall_sync(fn) __define_initcall("5s",fn,5s)
-#define rootfs_initcall(fn) __define_initcall("rootfs",fn,rootfs)
-#define device_initcall(fn) __define_initcall("6",fn,6)
-#define device_initcall_sync(fn) __define_initcall("6s",fn,6s)
-#define late_initcall(fn) __define_initcall("7",fn,7)
-#define late_initcall_sync(fn) __define_initcall("7s",fn,7s)
+#define pure_initcall(fn) __define_initcall(fn, 0)
+
+#define core_initcall(fn) __define_initcall(fn, 1)
+#define core_initcall_sync(fn) __define_initcall(fn, 1s)
+#define postcore_initcall(fn) __define_initcall(fn, 2)
+#define postcore_initcall_sync(fn) __define_initcall(fn, 2s)
+#define arch_initcall(fn) __define_initcall(fn, 3)
+#define arch_initcall_sync(fn) __define_initcall(fn, 3s)
+#define subsys_initcall(fn) __define_initcall(fn, 4)
+#define subsys_initcall_sync(fn) __define_initcall(fn, 4s)
+#define fs_initcall(fn) __define_initcall(fn, 5)
+#define fs_initcall_sync(fn) __define_initcall(fn, 5s)
+#define rootfs_initcall(fn) __define_initcall(fn, rootfs)
+#define device_initcall(fn) __define_initcall(fn, 6)
+#define device_initcall_sync(fn) __define_initcall(fn, 6s)
+#define late_initcall(fn) __define_initcall(fn, 7)
+#define late_initcall_sync(fn) __define_initcall(fn, 7s)
#define __initcall(fn) device_initcall(fn)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index d97ed589744..d140e8fb075 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -220,6 +220,23 @@ int __must_check _kstrtol(const char *s, unsigned int base, long *res);
int __must_check kstrtoull(const char *s, unsigned int base, unsigned long long *res);
int __must_check kstrtoll(const char *s, unsigned int base, long long *res);
+
+/**
+ * kstrtoul - convert a string to an unsigned long
+ * @s: The start of the string. The string must be null-terminated, and may also
+ * include a single newline before its terminating null. The first character
+ * may also be a plus sign, but not a minus sign.
+ * @base: The number base to use. The maximum supported base is 16. If base is
+ * given as 0, then the base of the string is automatically detected with the
+ * conventional semantics - If it begins with 0x the number will be parsed as a
+ * hexadecimal (case insensitive), if it otherwise begins with 0, it will be
+ * parsed as an octal number. Otherwise it will be parsed as a decimal.
+ * @res: Where to write the result of the conversion on success.
+ *
+ * Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error.
+ * Used as a replacement for the obsolete simple_strtoull. Return code must
+ * be checked.
+*/
static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
{
/*
@@ -233,6 +250,22 @@ static inline int __must_check kstrtoul(const char *s, unsigned int base, unsign
return _kstrtoul(s, base, res);
}
+/**
+ * kstrtol - convert a string to a long
+ * @s: The start of the string. The string must be null-terminated, and may also
+ * include a single newline before its terminating null. The first character
+ * may also be a plus sign or a minus sign.
+ * @base: The number base to use. The maximum supported base is 16. If base is
+ * given as 0, then the base of the string is automatically detected with the
+ * conventional semantics - If it begins with 0x the number will be parsed as a
+ * hexadecimal (case insensitive), if it otherwise begins with 0, it will be
+ * parsed as an octal number. Otherwise it will be parsed as a decimal.
+ * @res: Where to write the result of the conversion on success.
+ *
+ * Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error.
+ * Used as a replacement for the obsolete simple_strtoull. Return code must
+ * be checked.
+ */
static inline int __must_check kstrtol(const char *s, unsigned int base, long *res)
{
/*
diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h
index bd1e86071e5..3e88c9a7d57 100644
--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -1,83 +1,34 @@
#ifndef _LINUX_PERCPU_RWSEM_H
#define _LINUX_PERCPU_RWSEM_H
-#include <linux/mutex.h>
+#include <linux/atomic.h>
+#include <linux/rwsem.h>
#include <linux/percpu.h>
-#include <linux/rcupdate.h>
-#include <linux/delay.h>
+#include <linux/wait.h>
+#include <linux/lockdep.h>
struct percpu_rw_semaphore {
- unsigned __percpu *counters;
- bool locked;
- struct mutex mtx;
+ unsigned int __percpu *fast_read_ctr;
+ atomic_t write_ctr;
+ struct rw_semaphore rw_sem;
+ atomic_t slow_read_ctr;
+ wait_queue_head_t write_waitq;
};
-#define light_mb() barrier()
-#define heavy_mb() synchronize_sched_expedited()
+extern void percpu_down_read(struct percpu_rw_semaphore *);
+extern void percpu_up_read(struct percpu_rw_semaphore *);
-static inline void percpu_down_read(struct percpu_rw_semaphore *p)
-{
- rcu_read_lock_sched();
- if (unlikely(p->locked)) {
- rcu_read_unlock_sched();
- mutex_lock(&p->mtx);
- this_cpu_inc(*p->counters);
- mutex_unlock(&p->mtx);
- return;
- }
- this_cpu_inc(*p->counters);
- rcu_read_unlock_sched();
- light_mb(); /* A, between read of p->locked and read of data, paired with D */
-}
+extern void percpu_down_write(struct percpu_rw_semaphore *);
+extern void percpu_up_write(struct percpu_rw_semaphore *);
-static inline void percpu_up_read(struct percpu_rw_semaphore *p)
-{
- light_mb(); /* B, between read of the data and write to p->counter, paired with C */
- this_cpu_dec(*p->counters);
-}
+extern int __percpu_init_rwsem(struct percpu_rw_semaphore *,
+ const char *, struct lock_class_key *);
+extern void percpu_free_rwsem(struct percpu_rw_semaphore *);
-static inline unsigned __percpu_count(unsigned __percpu *counters)
-{
- unsigned total = 0;
- int cpu;
-
- for_each_possible_cpu(cpu)
- total += ACCESS_ONCE(*per_cpu_ptr(counters, cpu));
-
- return total;
-}
-
-static inline void percpu_down_write(struct percpu_rw_semaphore *p)
-{
- mutex_lock(&p->mtx);
- p->locked = true;
- synchronize_sched_expedited(); /* make sure that all readers exit the rcu_read_lock_sched region */
- while (__percpu_count(p->counters))
- msleep(1);
- heavy_mb(); /* C, between read of p->counter and write to data, paired with B */
-}
-
-static inline void percpu_up_write(struct percpu_rw_semaphore *p)
-{
- heavy_mb(); /* D, between write to data and write to p->locked, paired with A */
- p->locked = false;
- mutex_unlock(&p->mtx);
-}
-
-static inline int percpu_init_rwsem(struct percpu_rw_semaphore *p)
-{
- p->counters = alloc_percpu(unsigned);
- if (unlikely(!p->counters))
- return -ENOMEM;
- p->locked = false;
- mutex_init(&p->mtx);
- return 0;
-}
-
-static inline void percpu_free_rwsem(struct percpu_rw_semaphore *p)
-{
- free_percpu(p->counters);
- p->counters = NULL; /* catch use after free bugs */
-}
+#define percpu_init_rwsem(brw) \
+({ \
+ static struct lock_class_key rwsem_key; \
+ __percpu_init_rwsem(brw, #brw, &rwsem_key); \
+})
#endif
diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h
index 761f3175236..e81f62d24ee 100644
--- a/include/linux/platform_data/lp855x.h
+++ b/include/linux/platform_data/lp855x.h
@@ -89,11 +89,6 @@ enum lp8556_brightness_source {
LP8556_COMBINED2, /* pwm + i2c after the shaper block */
};
-struct lp855x_pwm_data {
- void (*pwm_set_intensity) (int brightness, int max_brightness);
- int (*pwm_get_intensity) (int max_brightness);
-};
-
struct lp855x_rom_data {
u8 addr;
u8 val;
@@ -105,7 +100,7 @@ struct lp855x_rom_data {
* @mode : brightness control by pwm or lp855x register
* @device_control : value of DEVICE CONTROL register
* @initial_brightness : initial value of backlight brightness
- * @pwm_data : platform specific pwm generation functions.
+ * @period_ns : platform specific pwm period value. unit is nano.
Only valid when mode is PWM_BASED.
* @load_new_rom_data :
0 : use default configuration data
@@ -118,7 +113,7 @@ struct lp855x_platform_data {
enum lp855x_brightness_ctrl_mode mode;
u8 device_control;
int initial_brightness;
- struct lp855x_pwm_data pwm_data;
+ unsigned int period_ns;
u8 load_new_rom_data;
int size_program;
struct lp855x_rom_data *rom_data;
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 2e24018b7ce..32676b35d2f 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -314,4 +314,7 @@ static inline struct net *PDE_NET(struct proc_dir_entry *pde)
return pde->parent->data;
}
+#include <linux/signal.h>
+
+void render_sigset_t(struct seq_file *m, const char *header, sigset_t *set);
#endif /* _LINUX_PROC_FS_H */
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index a89ff04bddd..addfbe7c180 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -32,6 +32,8 @@
#define PT_TRACE_EXIT PT_EVENT_FLAG(PTRACE_EVENT_EXIT)
#define PT_TRACE_SECCOMP PT_EVENT_FLAG(PTRACE_EVENT_SECCOMP)
+#define PT_EXITKILL (PTRACE_O_EXITKILL << PT_OPT_FLAG_SHIFT)
+
/* single stepping state bits (used on ARM and PA-RISC) */
#define PT_SINGLESTEP_BIT 31
#define PT_SINGLESTEP (1<<PT_SINGLESTEP_BIT)
diff --git a/include/linux/random.h b/include/linux/random.h
index 6330ed47b38..d9846088c2c 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -25,10 +25,19 @@ extern const struct file_operations random_fops, urandom_fops;
unsigned int get_random_int(void);
unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
-u32 random32(void);
-void srandom32(u32 seed);
+u32 prandom_u32(void);
+void prandom_bytes(void *buf, int nbytes);
+void prandom_seed(u32 seed);
-u32 prandom32(struct rnd_state *);
+/*
+ * These macros are preserved for backward compatibility and should be
+ * removed as soon as a transition is finished.
+ */
+#define random32() prandom_u32()
+#define srandom32(seed) prandom_seed(seed)
+
+u32 prandom_u32_state(struct rnd_state *);
+void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
/*
* Handle minimum values for seeds
@@ -39,11 +48,11 @@ static inline u32 __seed(u32 x, u32 m)
}
/**
- * prandom32_seed - set seed for prandom32().
+ * prandom_seed_state - set seed for prandom_u32_state().
* @state: pointer to state structure to receive the seed.
* @seed: arbitrary 64-bit value to use as a seed.
*/
-static inline void prandom32_seed(struct rnd_state *state, u64 seed)
+static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
{
u32 i = (seed >> 32) ^ (seed << 10) ^ seed;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b089c92c609..9914c662ed7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1778,12 +1778,6 @@ static inline int is_global_init(struct task_struct *tsk)
return tsk->pid == 1;
}
-/*
- * is_container_init:
- * check whether in the task is init in its own pid namespace.
- */
-extern int is_container_init(struct task_struct *tsk);
-
extern struct pid *cad_pid;
extern void free_task(struct task_struct *tsk);
diff --git a/include/linux/string.h b/include/linux/string.h
index 630125818ca..ac889c5ea11 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -143,4 +143,15 @@ static inline bool strstarts(const char *str, const char *prefix)
extern size_t memweight(const void *ptr, size_t bytes);
+/**
+ * kbasename - return the last part of a pathname.
+ *
+ * @path: path to extract the filename from.
+ */
+static inline const char *kbasename(const char *path)
+{
+ const char *tail = strrchr(path, '/');
+ return tail ? tail + 1 : path;
+}
+
#endif /* _LINUX_STRING_H_ */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 91835e7f364..36c3b07c511 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -560,10 +560,10 @@ asmlinkage long sys_utime(char __user *filename,
asmlinkage long sys_utimes(char __user *filename,
struct timeval __user *utimes);
asmlinkage long sys_lseek(unsigned int fd, off_t offset,
- unsigned int origin);
+ unsigned int whence);
asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
unsigned long offset_low, loff_t __user *result,
- unsigned int origin);
+ unsigned int whence);
asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
asmlinkage long sys_readv(unsigned long fd,
diff --git a/include/uapi/linux/ptrace.h b/include/uapi/linux/ptrace.h
index 1ef6c056a9e..022ab186a81 100644
--- a/include/uapi/linux/ptrace.h
+++ b/include/uapi/linux/ptrace.h
@@ -73,7 +73,10 @@
#define PTRACE_O_TRACEEXIT (1 << PTRACE_EVENT_EXIT)
#define PTRACE_O_TRACESECCOMP (1 << PTRACE_EVENT_SECCOMP)
-#define PTRACE_O_MASK 0x000000ff
+/* eventless options */
+#define PTRACE_O_EXITKILL (1 << 20)
+
+#define PTRACE_O_MASK (0x000000ff | PTRACE_O_EXITKILL)
#include <asm/ptrace.h>