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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 16:59:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 16:59:10 -0700
commit8e3ade251bc7c0a4f0777df4dd34343a03efadba (patch)
tree6c0b78731e3d6609057951d07660efbd90992ad0 /include/linux
parente317234975cb7463b8ca21a93bb6862d9dcf113f (diff)
parente075f59152890ffd7e3d704afc997dd686c8a781 (diff)
Merge branch 'akpm' (Andrew's patch-bomb)
Merge second batch of patches from Andrew Morton: - various misc things - core kernel changes to prctl, exit, exec, init, etc. - kernel/watchdog.c updates - get_maintainer - MAINTAINERS - the backlight driver queue - core bitops code cleanups - the led driver queue - some core prio_tree work - checkpatch udpates - largeish crc32 update - a new poll() feature for the v4l guys - the rtc driver queue - fatfs - ptrace - signals - kmod/usermodehelper updates - coredump - procfs updates * emailed from Andrew Morton <akpm@linux-foundation.org>: (141 commits) seq_file: add seq_set_overflow(), seq_overflow() proc-ns: use d_set_d_op() API to set dentry ops in proc_ns_instantiate(). procfs: speed up /proc/pid/stat, statm procfs: add num_to_str() to speed up /proc/stat proc: speed up /proc/stat handling fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static coredump: add VM_NODUMP, MADV_NODUMP, MADV_CLEAR_NODUMP coredump: remove VM_ALWAYSDUMP flag kmod: make __request_module() killable kmod: introduce call_modprobe() helper usermodehelper: ____call_usermodehelper() doesn't need do_exit() usermodehelper: kill umh_wait, renumber UMH_* constants usermodehelper: implement UMH_KILLABLE usermodehelper: introduce umh_complete(sub_info) usermodehelper: use UMH_WAIT_PROC consistently signal: zap_pid_ns_processes: s/SEND_SIG_NOINFO/SEND_SIG_FORCED/ signal: oom_kill_task: use SEND_SIG_FORCED instead of force_sig() signal: cosmetic, s/from_ancestor_ns/force/ in prepare_signal() paths signal: give SEND_SIG_FORCED more power to beat SIGNAL_UNKILLABLE Hexagon: use set_current_blocked() and block_sigmask() ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/bitops.h13
-rw-r--r--include/linux/compiler-gcc.h3
-rw-r--r--include/linux/crc32.h2
-rw-r--r--include/linux/kernel.h10
-rw-r--r--include/linux/kmod.h18
-rw-r--r--include/linux/led-lm3530.h9
-rw-r--r--include/linux/leds-lp5521.h25
-rw-r--r--include/linux/lp855x.h131
-rw-r--r--include/linux/magic.h18
-rw-r--r--include/linux/mm.h2
-rw-r--r--include/linux/mmc/ioctl.h3
-rw-r--r--include/linux/nmi.h2
-rw-r--r--include/linux/pipe_fs_i.h2
-rw-r--r--include/linux/poll.h37
-rw-r--r--include/linux/prctl.h3
-rw-r--r--include/linux/ptrace.h44
-rw-r--r--include/linux/rcupdate.h2
-rw-r--r--include/linux/sched.h12
-rw-r--r--include/linux/seq_file.h5
-rw-r--r--include/linux/tracehook.h9
20 files changed, 288 insertions, 62 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 94300fe46cce..a3b6b82108b9 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -27,11 +27,22 @@ extern unsigned long __sw_hweight64(__u64 w);
(bit) = find_next_bit((addr), (size), (bit) + 1))
/* same as for_each_set_bit() but use bit as value to start with */
-#define for_each_set_bit_cont(bit, addr, size) \
+#define for_each_set_bit_from(bit, addr, size) \
for ((bit) = find_next_bit((addr), (size), (bit)); \
(bit) < (size); \
(bit) = find_next_bit((addr), (size), (bit) + 1))
+#define for_each_clear_bit(bit, addr, size) \
+ for ((bit) = find_first_zero_bit((addr), (size)); \
+ (bit) < (size); \
+ (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
+
+/* same as for_each_clear_bit() but use bit as value to start with */
+#define for_each_clear_bit_from(bit, addr, size) \
+ for ((bit) = find_next_zero_bit((addr), (size), (bit)); \
+ (bit) < (size); \
+ (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
+
static __inline__ int get_bitmask_order(unsigned int count)
{
int order;
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 3fd17c249221..e5834aa24b9e 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -87,7 +87,8 @@
*/
#define __pure __attribute__((pure))
#define __aligned(x) __attribute__((aligned(x)))
-#define __printf(a,b) __attribute__((format(printf,a,b)))
+#define __printf(a, b) __attribute__((format(printf, a, b)))
+#define __scanf(a, b) __attribute__((format(scanf, a, b)))
#define noinline __attribute__((noinline))
#define __attribute_const__ __attribute__((__const__))
#define __maybe_unused __attribute__((unused))
diff --git a/include/linux/crc32.h b/include/linux/crc32.h
index 391a259b2cc9..68267b64bb98 100644
--- a/include/linux/crc32.h
+++ b/include/linux/crc32.h
@@ -11,6 +11,8 @@
extern u32 crc32_le(u32 crc, unsigned char const *p, size_t len);
extern u32 crc32_be(u32 crc, unsigned char const *p, size_t len);
+extern u32 __crc32c_le(u32 crc, unsigned char const *p, size_t len);
+
#define crc32(seed, data, length) crc32_le(seed, (unsigned char const *)(data), length)
/*
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index d801acb5e680..3e140add5360 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -312,6 +312,8 @@ extern long long simple_strtoll(const char *,char **,unsigned int);
#define strict_strtoull kstrtoull
#define strict_strtoll kstrtoll
+extern int num_to_str(char *buf, int size, unsigned long long num);
+
/* lib/printf utilities */
extern __printf(2, 3) int sprintf(char *buf, const char * fmt, ...);
@@ -328,10 +330,10 @@ extern __printf(2, 3)
char *kasprintf(gfp_t gfp, const char *fmt, ...);
extern char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);
-extern int sscanf(const char *, const char *, ...)
- __attribute__ ((format (scanf, 2, 3)));
-extern int vsscanf(const char *, const char *, va_list)
- __attribute__ ((format (scanf, 2, 0)));
+extern __scanf(2, 3)
+int sscanf(const char *, const char *, ...);
+extern __scanf(2, 0)
+int vsscanf(const char *, const char *, va_list);
extern int get_option(char **str, int *pint);
extern char *get_options(const char *str, int nints, int *ints);
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index 722f477c4ef7..9efeae679106 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -48,11 +48,10 @@ static inline int request_module_nowait(const char *name, ...) { return -ENOSYS;
struct cred;
struct file;
-enum umh_wait {
- UMH_NO_WAIT = -1, /* don't wait at all */
- UMH_WAIT_EXEC = 0, /* wait for the exec, but not the process */
- UMH_WAIT_PROC = 1, /* wait for the process to complete */
-};
+#define UMH_NO_WAIT 0 /* don't wait at all */
+#define UMH_WAIT_EXEC 1 /* wait for the exec, but not the process */
+#define UMH_WAIT_PROC 2 /* wait for the process to complete */
+#define UMH_KILLABLE 4 /* wait for EXEC/PROC killable */
struct subprocess_info {
struct work_struct work;
@@ -60,7 +59,7 @@ struct subprocess_info {
char *path;
char **argv;
char **envp;
- enum umh_wait wait;
+ int wait;
int retval;
int (*init)(struct subprocess_info *info, struct cred *new);
void (*cleanup)(struct subprocess_info *info);
@@ -78,15 +77,14 @@ void call_usermodehelper_setfns(struct subprocess_info *info,
void *data);
/* Actually execute the sub-process */
-int call_usermodehelper_exec(struct subprocess_info *info, enum umh_wait wait);
+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
-call_usermodehelper_fns(char *path, char **argv, char **envp,
- enum umh_wait wait,
+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)
{
@@ -104,7 +102,7 @@ call_usermodehelper_fns(char *path, char **argv, char **envp,
}
static inline int
-call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait)
+call_usermodehelper(char *path, char **argv, char **envp, int wait)
{
return call_usermodehelper_fns(path, argv, envp, wait,
NULL, NULL, NULL);
diff --git a/include/linux/led-lm3530.h b/include/linux/led-lm3530.h
index 8eb12357a110..eeae6e742471 100644
--- a/include/linux/led-lm3530.h
+++ b/include/linux/led-lm3530.h
@@ -72,6 +72,12 @@ enum lm3530_als_mode {
LM3530_INPUT_CEIL, /* Max of ALS1 and ALS2 */
};
+/* PWM Platform Specific Data */
+struct lm3530_pwm_data {
+ void (*pwm_set_intensity) (int brightness, int max_brightness);
+ int (*pwm_get_intensity) (int max_brightness);
+};
+
/**
* struct lm3530_platform_data
* @mode: mode of operation i.e. Manual, ALS or PWM
@@ -87,6 +93,7 @@ enum lm3530_als_mode {
* @als_vmin: als input voltage calibrated for max brightness in mV
* @als_vmax: als input voltage calibrated for min brightness in mV
* @brt_val: brightness value (0-255)
+ * @pwm_data: PWM control functions (only valid when the mode is PWM)
*/
struct lm3530_platform_data {
enum lm3530_mode mode;
@@ -107,6 +114,8 @@ struct lm3530_platform_data {
u32 als_vmax;
u8 brt_val;
+
+ struct lm3530_pwm_data pwm_data;
};
#endif /* _LINUX_LED_LM3530_H__ */
diff --git a/include/linux/leds-lp5521.h b/include/linux/leds-lp5521.h
index fd548d2a8775..3f071ec019b2 100644
--- a/include/linux/leds-lp5521.h
+++ b/include/linux/leds-lp5521.h
@@ -26,15 +26,37 @@
/* See Documentation/leds/leds-lp5521.txt */
struct lp5521_led_config {
+ char *name;
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
};
+struct lp5521_led_pattern {
+ u8 *r;
+ u8 *g;
+ u8 *b;
+ u8 size_r;
+ u8 size_g;
+ u8 size_b;
+};
+
#define LP5521_CLOCK_AUTO 0
#define LP5521_CLOCK_INT 1
#define LP5521_CLOCK_EXT 2
+/* Bits in CONFIG register */
+#define LP5521_PWM_HF 0x40 /* PWM: 0 = 256Hz, 1 = 558Hz */
+#define LP5521_PWRSAVE_EN 0x20 /* 1 = Power save mode */
+#define LP5521_CP_MODE_OFF 0 /* Charge pump (CP) off */
+#define LP5521_CP_MODE_BYPASS 8 /* CP forced to bypass mode */
+#define LP5521_CP_MODE_1X5 0x10 /* CP forced to 1.5x mode */
+#define LP5521_CP_MODE_AUTO 0x18 /* Automatic mode selection */
+#define LP5521_R_TO_BATT 4 /* R out: 0 = CP, 1 = Vbat */
+#define LP5521_CLK_SRC_EXT 0 /* Ext-clk source (CLK_32K) */
+#define LP5521_CLK_INT 1 /* Internal clock */
+#define LP5521_CLK_AUTO 2 /* Automatic clock selection */
+
struct lp5521_platform_data {
struct lp5521_led_config *led_config;
u8 num_channels;
@@ -43,6 +65,9 @@ struct lp5521_platform_data {
void (*release_resources)(void);
void (*enable)(bool state);
const char *label;
+ u8 update_config;
+ struct lp5521_led_pattern *patterns;
+ int num_patterns;
};
#endif /* __LINUX_LP5521_H */
diff --git a/include/linux/lp855x.h b/include/linux/lp855x.h
new file mode 100644
index 000000000000..781a490a451b
--- /dev/null
+++ b/include/linux/lp855x.h
@@ -0,0 +1,131 @@
+/*
+ * LP855x Backlight Driver
+ *
+ * Copyright (C) 2011 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _LP855X_H
+#define _LP855X_H
+
+#define BL_CTL_SHFT (0)
+#define BRT_MODE_SHFT (1)
+#define BRT_MODE_MASK (0x06)
+
+/* Enable backlight. Only valid when BRT_MODE=10(I2C only) */
+#define ENABLE_BL (1)
+#define DISABLE_BL (0)
+
+#define I2C_CONFIG(id) id ## _I2C_CONFIG
+#define PWM_CONFIG(id) id ## _PWM_CONFIG
+
+/* DEVICE CONTROL register - LP8550 */
+#define LP8550_PWM_CONFIG (LP8550_PWM_ONLY << BRT_MODE_SHFT)
+#define LP8550_I2C_CONFIG ((ENABLE_BL << BL_CTL_SHFT) | \
+ (LP8550_I2C_ONLY << BRT_MODE_SHFT))
+
+/* DEVICE CONTROL register - LP8551 */
+#define LP8551_PWM_CONFIG LP8550_PWM_CONFIG
+#define LP8551_I2C_CONFIG LP8550_I2C_CONFIG
+
+/* DEVICE CONTROL register - LP8552 */
+#define LP8552_PWM_CONFIG LP8550_PWM_CONFIG
+#define LP8552_I2C_CONFIG LP8550_I2C_CONFIG
+
+/* DEVICE CONTROL register - LP8553 */
+#define LP8553_PWM_CONFIG LP8550_PWM_CONFIG
+#define LP8553_I2C_CONFIG LP8550_I2C_CONFIG
+
+/* DEVICE CONTROL register - LP8556 */
+#define LP8556_PWM_CONFIG (LP8556_PWM_ONLY << BRT_MODE_SHFT)
+#define LP8556_COMB1_CONFIG (LP8556_COMBINED1 << BRT_MODE_SHFT)
+#define LP8556_I2C_CONFIG ((ENABLE_BL << BL_CTL_SHFT) | \
+ (LP8556_I2C_ONLY << BRT_MODE_SHFT))
+#define LP8556_COMB2_CONFIG (LP8556_COMBINED2 << BRT_MODE_SHFT)
+
+/* ROM area boundary */
+#define EEPROM_START (0xA0)
+#define EEPROM_END (0xA7)
+#define EPROM_START (0xA0)
+#define EPROM_END (0xAF)
+
+enum lp855x_chip_id {
+ LP8550,
+ LP8551,
+ LP8552,
+ LP8553,
+ LP8556,
+};
+
+enum lp855x_brightness_ctrl_mode {
+ PWM_BASED = 1,
+ REGISTER_BASED,
+};
+
+enum lp8550_brighntess_source {
+ LP8550_PWM_ONLY,
+ LP8550_I2C_ONLY = 2,
+};
+
+enum lp8551_brighntess_source {
+ LP8551_PWM_ONLY = LP8550_PWM_ONLY,
+ LP8551_I2C_ONLY = LP8550_I2C_ONLY,
+};
+
+enum lp8552_brighntess_source {
+ LP8552_PWM_ONLY = LP8550_PWM_ONLY,
+ LP8552_I2C_ONLY = LP8550_I2C_ONLY,
+};
+
+enum lp8553_brighntess_source {
+ LP8553_PWM_ONLY = LP8550_PWM_ONLY,
+ LP8553_I2C_ONLY = LP8550_I2C_ONLY,
+};
+
+enum lp8556_brightness_source {
+ LP8556_PWM_ONLY,
+ LP8556_COMBINED1, /* pwm + i2c before the shaper block */
+ LP8556_I2C_ONLY,
+ 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;
+};
+
+/**
+ * struct lp855x_platform_data
+ * @name : Backlight driver name. If it is not defined, default name is set.
+ * @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.
+ Only valid when mode is PWM_BASED.
+ * @load_new_rom_data :
+ 0 : use default configuration data
+ 1 : update values of eeprom or eprom registers on loading driver
+ * @size_program : total size of lp855x_rom_data
+ * @rom_data : list of new eeprom/eprom registers
+ */
+struct lp855x_platform_data {
+ char *name;
+ enum lp855x_brightness_ctrl_mode mode;
+ u8 device_control;
+ int initial_brightness;
+ struct lp855x_pwm_data pwm_data;
+ u8 load_new_rom_data;
+ int size_program;
+ struct lp855x_rom_data *rom_data;
+};
+
+#endif
diff --git a/include/linux/magic.h b/include/linux/magic.h
index b7ed4759dbb2..e15192cb9cf4 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -9,7 +9,6 @@
#define CRAMFS_MAGIC 0x28cd3d45 /* some random number */
#define CRAMFS_MAGIC_WEND 0x453dcd28 /* magic number with the wrong endianess */
#define DEBUGFS_MAGIC 0x64626720
-#define SYSFS_MAGIC 0x62656572
#define SECURITYFS_MAGIC 0x73636673
#define SELINUX_MAGIC 0xf97cff8c
#define RAMFS_MAGIC 0x858458f6 /* some random number */
@@ -27,7 +26,6 @@
#define HPFS_SUPER_MAGIC 0xf995e849
#define ISOFS_SUPER_MAGIC 0x9660
#define JFFS2_SUPER_MAGIC 0x72b6
-#define ANON_INODE_FS_MAGIC 0x09041934
#define PSTOREFS_MAGIC 0x6165676C
#define MINIX_SUPER_MAGIC 0x137F /* minix v1 fs, 14 char names */
@@ -40,7 +38,6 @@
#define NCP_SUPER_MAGIC 0x564c /* Guess, what 0x564c is :-) */
#define NFS_SUPER_MAGIC 0x6969
#define OPENPROM_SUPER_MAGIC 0x9fa1
-#define PROC_SUPER_MAGIC 0x9fa0
#define QNX4_SUPER_MAGIC 0x002f /* qnx4 fs detection */
#define QNX6_SUPER_MAGIC 0x68191122 /* qnx6 fs detection */
@@ -52,15 +49,24 @@
#define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs"
#define SMB_SUPER_MAGIC 0x517B
-#define USBDEVICE_SUPER_MAGIC 0x9fa2
#define CGROUP_SUPER_MAGIC 0x27e0eb
-#define FUTEXFS_SUPER_MAGIC 0xBAD1DEA
#define STACK_END_MAGIC 0x57AC6E9D
+#define V9FS_MAGIC 0x01021997
+
+#define BDEVFS_MAGIC 0x62646576
+#define BINFMTFS_MAGIC 0x42494e4d
#define DEVPTS_SUPER_MAGIC 0x1cd1
+#define FUTEXFS_SUPER_MAGIC 0xBAD1DEA
+#define PIPEFS_MAGIC 0x50495045
+#define PROC_SUPER_MAGIC 0x9fa0
#define SOCKFS_MAGIC 0x534F434B
-#define V9FS_MAGIC 0x01021997
+#define SYSFS_MAGIC 0x62656572
+#define USBDEVICE_SUPER_MAGIC 0x9fa2
+#define MTD_INODE_FS_MAGIC 0x11307854
+#define ANON_INODE_FS_MAGIC 0x09041934
+
#endif /* __LINUX_MAGIC_H__ */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7330742e7973..a6fabdfd34c5 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -111,7 +111,7 @@ extern unsigned int kobjsize(const void *objp);
#define VM_HUGEPAGE 0x01000000 /* MADV_HUGEPAGE marked this vma */
#endif
#define VM_INSERTPAGE 0x02000000 /* The vma has had "vm_insert_page()" done on it */
-#define VM_ALWAYSDUMP 0x04000000 /* Always include in core dumps */
+#define VM_NODUMP 0x04000000 /* Do not include in the core dump */
#define VM_CAN_NONLINEAR 0x08000000 /* Has ->fault & does nonlinear pages */
#define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */
diff --git a/include/linux/mmc/ioctl.h b/include/linux/mmc/ioctl.h
index 8fa5bc5f8059..1f5e68923929 100644
--- a/include/linux/mmc/ioctl.h
+++ b/include/linux/mmc/ioctl.h
@@ -1,5 +1,8 @@
#ifndef LINUX_MMC_IOCTL_H
#define LINUX_MMC_IOCTL_H
+
+#include <linux/types.h>
+
struct mmc_ioc_cmd {
/* Implies direction of data. true = write, false = read */
int write_flag;
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 2d304efc89df..db50840e6355 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -14,7 +14,7 @@
* may be used to reset the timeout - for code which intentionally
* disables interrupts for a long time. This call is stateless.
*/
-#if defined(ARCH_HAS_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
+#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
#include <asm/nmi.h>
extern void touch_nmi_watchdog(void);
#else
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 77257c92155a..6d626ff0cfd0 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -1,8 +1,6 @@
#ifndef _LINUX_PIPE_FS_I_H
#define _LINUX_PIPE_FS_I_H
-#define PIPEFS_MAGIC 0x50495045
-
#define PIPE_DEF_BUFFERS 16
#define PIPE_BUF_FLAG_LRU 0x01 /* page is on the LRU */
diff --git a/include/linux/poll.h b/include/linux/poll.h
index cf40010ce0cd..48fe8bc398d1 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -32,21 +32,46 @@ struct poll_table_struct;
*/
typedef void (*poll_queue_proc)(struct file *, wait_queue_head_t *, struct poll_table_struct *);
+/*
+ * Do not touch the structure directly, use the access functions
+ * poll_does_not_wait() and poll_requested_events() instead.
+ */
typedef struct poll_table_struct {
- poll_queue_proc qproc;
- unsigned long key;
+ poll_queue_proc _qproc;
+ unsigned long _key;
} poll_table;
static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
{
- if (p && wait_address)
- p->qproc(filp, wait_address, p);
+ if (p && p->_qproc && wait_address)
+ p->_qproc(filp, wait_address, p);
+}
+
+/*
+ * Return true if it is guaranteed that poll will not wait. This is the case
+ * if the poll() of another file descriptor in the set got an event, so there
+ * is no need for waiting.
+ */
+static inline bool poll_does_not_wait(const poll_table *p)
+{
+ return p == NULL || p->_qproc == NULL;
+}
+
+/*
+ * Return the set of events that the application wants to poll for.
+ * This is useful for drivers that need to know whether a DMA transfer has
+ * to be started implicitly on poll(). You typically only want to do that
+ * if the application is actually polling for POLLIN and/or POLLOUT.
+ */
+static inline unsigned long poll_requested_events(const poll_table *p)
+{
+ return p ? p->_key : ~0UL;
}
static inline void init_poll_funcptr(poll_table *pt, poll_queue_proc qproc)
{
- pt->qproc = qproc;
- pt->key = ~0UL; /* all events enabled */
+ pt->_qproc = qproc;
+ pt->_key = ~0UL; /* all events enabled */
}
struct poll_table_entry {
diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index a0413ac3abe8..e0cfec2490aa 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -121,4 +121,7 @@
#define PR_SET_PTRACER 0x59616d61
# define PR_SET_PTRACER_ANY ((unsigned long)-1)
+#define PR_SET_CHILD_SUBREAPER 36
+#define PR_GET_CHILD_SUBREAPER 37
+
#endif /* _LINUX_PRCTL_H */
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index c2f1f6a5fcb8..407c678d2e30 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -51,20 +51,6 @@
#define PTRACE_INTERRUPT 0x4207
#define PTRACE_LISTEN 0x4208
-/* flags in @data for PTRACE_SEIZE */
-#define PTRACE_SEIZE_DEVEL 0x80000000 /* temp flag for development */
-
-/* options set using PTRACE_SETOPTIONS */
-#define PTRACE_O_TRACESYSGOOD 0x00000001
-#define PTRACE_O_TRACEFORK 0x00000002
-#define PTRACE_O_TRACEVFORK 0x00000004
-#define PTRACE_O_TRACECLONE 0x00000008
-#define PTRACE_O_TRACEEXEC 0x00000010
-#define PTRACE_O_TRACEVFORKDONE 0x00000020
-#define PTRACE_O_TRACEEXIT 0x00000040
-
-#define PTRACE_O_MASK 0x0000007f
-
/* Wait extended result codes for the above trace options. */
#define PTRACE_EVENT_FORK 1
#define PTRACE_EVENT_VFORK 2
@@ -72,7 +58,19 @@
#define PTRACE_EVENT_EXEC 4
#define PTRACE_EVENT_VFORK_DONE 5
#define PTRACE_EVENT_EXIT 6
-#define PTRACE_EVENT_STOP 7
+/* Extended result codes which enabled by means other than options. */
+#define PTRACE_EVENT_STOP 128
+
+/* Options set using PTRACE_SETOPTIONS or using PTRACE_SEIZE @data param */
+#define PTRACE_O_TRACESYSGOOD 1
+#define PTRACE_O_TRACEFORK (1 << PTRACE_EVENT_FORK)
+#define PTRACE_O_TRACEVFORK (1 << PTRACE_EVENT_VFORK)
+#define PTRACE_O_TRACECLONE (1 << PTRACE_EVENT_CLONE)
+#define PTRACE_O_TRACEEXEC (1 << PTRACE_EVENT_EXEC)
+#define PTRACE_O_TRACEVFORKDONE (1 << PTRACE_EVENT_VFORK_DONE)
+#define PTRACE_O_TRACEEXIT (1 << PTRACE_EVENT_EXIT)
+
+#define PTRACE_O_MASK 0x0000007f
#include <asm/ptrace.h>
@@ -88,13 +86,12 @@
#define PT_SEIZED 0x00010000 /* SEIZE used, enable new behavior */
#define PT_PTRACED 0x00000001
#define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */
-#define PT_TRACESYSGOOD 0x00000004
-#define PT_PTRACE_CAP 0x00000008 /* ptracer can follow suid-exec */
+#define PT_PTRACE_CAP 0x00000004 /* ptracer can follow suid-exec */
+#define PT_OPT_FLAG_SHIFT 3
/* PT_TRACE_* event enable flags */
-#define PT_EVENT_FLAG_SHIFT 4
-#define PT_EVENT_FLAG(event) (1 << (PT_EVENT_FLAG_SHIFT + (event) - 1))
-
+#define PT_EVENT_FLAG(event) (1 << (PT_OPT_FLAG_SHIFT + (event)))
+#define PT_TRACESYSGOOD PT_EVENT_FLAG(0)
#define PT_TRACE_FORK PT_EVENT_FLAG(PTRACE_EVENT_FORK)
#define PT_TRACE_VFORK PT_EVENT_FLAG(PTRACE_EVENT_VFORK)
#define PT_TRACE_CLONE PT_EVENT_FLAG(PTRACE_EVENT_CLONE)
@@ -102,8 +99,6 @@
#define PT_TRACE_VFORK_DONE PT_EVENT_FLAG(PTRACE_EVENT_VFORK_DONE)
#define PT_TRACE_EXIT PT_EVENT_FLAG(PTRACE_EVENT_EXIT)
-#define PT_TRACE_MASK 0x000003f4
-
/* single stepping state bits (used on ARM and PA-RISC) */
#define PT_SINGLESTEP_BIT 31
#define PT_SINGLESTEP (1<<PT_SINGLESTEP_BIT)
@@ -199,9 +194,10 @@ static inline void ptrace_event(int event, unsigned long message)
if (unlikely(ptrace_event_enabled(current, event))) {
current->ptrace_message = message;
ptrace_notify((event << 8) | SIGTRAP);
- } else if (event == PTRACE_EVENT_EXEC && unlikely(current->ptrace)) {
+ } else if (event == PTRACE_EVENT_EXEC) {
/* legacy EXEC report via SIGTRAP */
- send_sig(SIGTRAP, current, 0);
+ if ((current->ptrace & (PT_PTRACED|PT_SEIZED)) == PT_PTRACED)
+ send_sig(SIGTRAP, current, 0);
}
}
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 937217425c47..2c62594b67dd 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -418,7 +418,7 @@ extern int rcu_my_thread_group_empty(void);
*/
#define rcu_lockdep_assert(c, s) \
do { \
- static bool __warned; \
+ static bool __section(.data.unlikely) __warned; \
if (debug_lockdep_rcu_enabled() && !__warned && !(c)) { \
__warned = true; \
lockdep_rcu_suspicious(__FILE__, __LINE__, s); \
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0c147a4260a5..0c3854b0d4b1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -553,6 +553,18 @@ struct signal_struct {
int group_stop_count;
unsigned int flags; /* see SIGNAL_* flags below */
+ /*
+ * PR_SET_CHILD_SUBREAPER marks a process, like a service
+ * manager, to re-parent orphan (double-forking) child processes
+ * to this process instead of 'init'. The service manager is
+ * able to receive SIGCHLD signals and is able to investigate
+ * the process until it calls wait(). All children of this
+ * process will inherit a flag if they should look for a
+ * child_subreaper process at exit.
+ */
+ unsigned int is_child_subreaper:1;
+ unsigned int has_child_subreaper:1;
+
/* POSIX.1b Interval Timers */
struct list_head posix_timers;
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 44f1514b00ba..54e5ae7f8adc 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -121,9 +121,12 @@ int single_release(struct inode *, struct file *);
void *__seq_open_private(struct file *, const struct seq_operations *, int);
int seq_open_private(struct file *, const struct seq_operations *, int);
int seq_release_private(struct inode *, struct file *);
+int seq_put_decimal_ull(struct seq_file *m, char delimiter,
+ unsigned long long num);
+int seq_put_decimal_ll(struct seq_file *m, char delimiter,
+ long long num);
#define SEQ_START_TOKEN ((void *)1)
-
/*
* Helpers for iteration over list_head-s in seq_files
*/
diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h
index a71a2927a6a0..51bd91d911c3 100644
--- a/include/linux/tracehook.h
+++ b/include/linux/tracehook.h
@@ -54,12 +54,12 @@ struct linux_binprm;
/*
* ptrace report for syscall entry and exit looks identical.
*/
-static inline void ptrace_report_syscall(struct pt_regs *regs)
+static inline int ptrace_report_syscall(struct pt_regs *regs)
{
int ptrace = current->ptrace;
if (!(ptrace & PT_PTRACED))
- return;
+ return 0;
ptrace_notify(SIGTRAP | ((ptrace & PT_TRACESYSGOOD) ? 0x80 : 0));
@@ -72,6 +72,8 @@ static inline void ptrace_report_syscall(struct pt_regs *regs)
send_sig(current->exit_code, current, 1);
current->exit_code = 0;
}
+
+ return fatal_signal_pending(current);
}
/**
@@ -96,8 +98,7 @@ static inline void ptrace_report_syscall(struct pt_regs *regs)
static inline __must_check int tracehook_report_syscall_entry(
struct pt_regs *regs)
{
- ptrace_report_syscall(regs);
- return 0;
+ return ptrace_report_syscall(regs);
}
/**