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-rw-r--r--include/linux/ata_platform.h3
-rw-r--r--include/linux/bitmap.h1
-rw-r--r--include/linux/cpumask.h25
-rw-r--r--include/linux/cpuset.h13
-rw-r--r--include/linux/efi.h7
-rw-r--r--include/linux/file.h1
-rw-r--r--include/linux/fs.h52
-rw-r--r--include/linux/i2c/tps65010.h30
-rw-r--r--include/linux/init_task.h3
-rw-r--r--include/linux/irqflags.h6
-rw-r--r--include/linux/ktime.h6
-rw-r--r--include/linux/list.h48
-rw-r--r--include/linux/mbus.h36
-rw-r--r--include/linux/mfd/htc-egpio.h57
-rw-r--r--include/linux/mfd/htc-pasic3.h55
-rw-r--r--include/linux/mount.h11
-rw-r--r--include/linux/prctl.h6
-rw-r--r--include/linux/sched.h56
-rw-r--r--include/linux/sysdev.h17
-rw-r--r--include/linux/topology.h46
20 files changed, 381 insertions, 98 deletions
diff --git a/include/linux/ata_platform.h b/include/linux/ata_platform.h
index b856a2a590d..9a26c83a2c9 100644
--- a/include/linux/ata_platform.h
+++ b/include/linux/ata_platform.h
@@ -27,7 +27,10 @@ extern int __devexit __pata_platform_remove(struct device *dev);
/*
* Marvell SATA private data
*/
+struct mbus_dram_target_info;
+
struct mv_sata_platform_data {
+ struct mbus_dram_target_info *dram;
int n_ports; /* number of sata ports */
};
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index acad1105d94..1dbe074f1c6 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -108,6 +108,7 @@ extern int __bitmap_weight(const unsigned long *bitmap, int bits);
extern int bitmap_scnprintf(char *buf, unsigned int len,
const unsigned long *src, int nbits);
+extern int bitmap_scnprintf_len(unsigned int len);
extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user,
unsigned long *dst, int nbits);
extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen,
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 7047f58306a..259c8051155 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -222,8 +222,13 @@ int __next_cpu(int n, const cpumask_t *srcp);
#define next_cpu(n, src) ({ (void)(src); 1; })
#endif
+#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP
+extern cpumask_t *cpumask_of_cpu_map;
+#define cpumask_of_cpu(cpu) (cpumask_of_cpu_map[cpu])
+
+#else
#define cpumask_of_cpu(cpu) \
-({ \
+(*({ \
typeof(_unused_cpumask_arg_) m; \
if (sizeof(m) == sizeof(unsigned long)) { \
m.bits[0] = 1UL<<(cpu); \
@@ -231,8 +236,9 @@ int __next_cpu(int n, const cpumask_t *srcp);
cpus_clear(m); \
cpu_set((cpu), m); \
} \
- m; \
-})
+ &m; \
+}))
+#endif
#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS)
@@ -243,6 +249,8 @@ int __next_cpu(int n, const cpumask_t *srcp);
[BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
} }
+#define CPU_MASK_ALL_PTR (&CPU_MASK_ALL)
+
#else
#define CPU_MASK_ALL \
@@ -251,6 +259,10 @@ int __next_cpu(int n, const cpumask_t *srcp);
[BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
} }
+/* cpu_mask_all is in init/main.c */
+extern cpumask_t cpu_mask_all;
+#define CPU_MASK_ALL_PTR (&cpu_mask_all)
+
#endif
#define CPU_MASK_NONE \
@@ -273,6 +285,13 @@ static inline int __cpumask_scnprintf(char *buf, int len,
return bitmap_scnprintf(buf, len, srcp->bits, nbits);
}
+#define cpumask_scnprintf_len(len) \
+ __cpumask_scnprintf_len((len))
+static inline int __cpumask_scnprintf_len(int len)
+{
+ return bitmap_scnprintf_len(len);
+}
+
#define cpumask_parse_user(ubuf, ulen, dst) \
__cpumask_parse_user((ubuf), (ulen), &(dst), NR_CPUS)
static inline int __cpumask_parse_user(const char __user *buf, int len,
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 0a26be353cb..726761e2400 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -20,8 +20,8 @@ extern int number_of_cpusets; /* How many cpusets are defined in system? */
extern int cpuset_init_early(void);
extern int cpuset_init(void);
extern void cpuset_init_smp(void);
-extern cpumask_t cpuset_cpus_allowed(struct task_struct *p);
-extern cpumask_t cpuset_cpus_allowed_locked(struct task_struct *p);
+extern void cpuset_cpus_allowed(struct task_struct *p, cpumask_t *mask);
+extern void cpuset_cpus_allowed_locked(struct task_struct *p, cpumask_t *mask);
extern nodemask_t cpuset_mems_allowed(struct task_struct *p);
#define cpuset_current_mems_allowed (current->mems_allowed)
void cpuset_init_current_mems_allowed(void);
@@ -84,13 +84,14 @@ static inline int cpuset_init_early(void) { return 0; }
static inline int cpuset_init(void) { return 0; }
static inline void cpuset_init_smp(void) {}
-static inline cpumask_t cpuset_cpus_allowed(struct task_struct *p)
+static inline void cpuset_cpus_allowed(struct task_struct *p, cpumask_t *mask)
{
- return cpu_possible_map;
+ *mask = cpu_possible_map;
}
-static inline cpumask_t cpuset_cpus_allowed_locked(struct task_struct *p)
+static inline void cpuset_cpus_allowed_locked(struct task_struct *p,
+ cpumask_t *mask)
{
- return cpu_possible_map;
+ *mask = cpu_possible_map;
}
static inline nodemask_t cpuset_mems_allowed(struct task_struct *p)
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 14813b59580..a5f359a7ad0 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -18,6 +18,7 @@
#include <linux/proc_fs.h>
#include <linux/rtc.h>
#include <linux/ioport.h>
+#include <linux/pfn.h>
#include <asm/page.h>
#include <asm/system.h>
@@ -394,4 +395,10 @@ struct efi_generic_dev_path {
u16 length;
} __attribute ((packed));
+static inline void memrange_efi_to_native(u64 *addr, u64 *npages)
+{
+ *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr);
+ *addr &= PAGE_MASK;
+}
+
#endif /* _LINUX_EFI_H */
diff --git a/include/linux/file.h b/include/linux/file.h
index 7239baac81a..653477021e4 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -61,6 +61,7 @@ extern struct kmem_cache *filp_cachep;
extern void __fput(struct file *);
extern void fput(struct file *);
+extern void drop_file_write_access(struct file *file);
struct file_operations;
struct vfsmount;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 91e8dec9e42..0c609e71c37 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -776,6 +776,9 @@ static inline int ra_has_index(struct file_ra_state *ra, pgoff_t index)
index < ra->start + ra->size);
}
+#define FILE_MNT_WRITE_TAKEN 1
+#define FILE_MNT_WRITE_RELEASED 2
+
struct file {
/*
* fu_list becomes invalid after file_free is called and queued via
@@ -810,6 +813,9 @@ struct file {
spinlock_t f_ep_lock;
#endif /* #ifdef CONFIG_EPOLL */
struct address_space *f_mapping;
+#ifdef CONFIG_DEBUG_WRITECOUNT
+ unsigned long f_mnt_write_state;
+#endif
};
extern spinlock_t files_lock;
#define file_list_lock() spin_lock(&files_lock);
@@ -818,6 +824,49 @@ extern spinlock_t files_lock;
#define get_file(x) atomic_inc(&(x)->f_count)
#define file_count(x) atomic_read(&(x)->f_count)
+#ifdef CONFIG_DEBUG_WRITECOUNT
+static inline void file_take_write(struct file *f)
+{
+ WARN_ON(f->f_mnt_write_state != 0);
+ f->f_mnt_write_state = FILE_MNT_WRITE_TAKEN;
+}
+static inline void file_release_write(struct file *f)
+{
+ f->f_mnt_write_state |= FILE_MNT_WRITE_RELEASED;
+}
+static inline void file_reset_write(struct file *f)
+{
+ f->f_mnt_write_state = 0;
+}
+static inline void file_check_state(struct file *f)
+{
+ /*
+ * At this point, either both or neither of these bits
+ * should be set.
+ */
+ WARN_ON(f->f_mnt_write_state == FILE_MNT_WRITE_TAKEN);
+ WARN_ON(f->f_mnt_write_state == FILE_MNT_WRITE_RELEASED);
+}
+static inline int file_check_writeable(struct file *f)
+{
+ if (f->f_mnt_write_state == FILE_MNT_WRITE_TAKEN)
+ return 0;
+ printk(KERN_WARNING "writeable file with no "
+ "mnt_want_write()\n");
+ WARN_ON(1);
+ return -EINVAL;
+}
+#else /* !CONFIG_DEBUG_WRITECOUNT */
+static inline void file_take_write(struct file *filp) {}
+static inline void file_release_write(struct file *filp) {}
+static inline void file_reset_write(struct file *filp) {}
+static inline void file_check_state(struct file *filp) {}
+static inline int file_check_writeable(struct file *filp)
+{
+ return 0;
+}
+#endif /* CONFIG_DEBUG_WRITECOUNT */
+
#define MAX_NON_LFS ((1UL<<31) - 1)
/* Page cache limit. The filesystems should put that into their s_maxbytes
@@ -1735,7 +1784,8 @@ extern struct file *create_read_pipe(struct file *f);
extern struct file *create_write_pipe(void);
extern void free_write_pipe(struct file *);
-extern int open_namei(int dfd, const char *, int, int, struct nameidata *);
+extern struct file *do_filp_open(int dfd, const char *pathname,
+ int open_flag, int mode);
extern int may_open(struct nameidata *, int, int);
extern int kernel_read(struct file *, unsigned long, char *, unsigned long);
diff --git a/include/linux/i2c/tps65010.h b/include/linux/i2c/tps65010.h
index 7021635ed6a..918c5354d9b 100644
--- a/include/linux/i2c/tps65010.h
+++ b/include/linux/i2c/tps65010.h
@@ -152,5 +152,35 @@ extern int tps65010_config_vregs1(unsigned value);
*/
extern int tps65013_set_low_pwr(unsigned mode);
+
+struct i2c_client;
+
+/**
+ * struct tps65010_board - packages GPIO and LED lines
+ * @base: the GPIO number to assign to GPIO-1
+ * @outmask: bit (N-1) is set to allow GPIO-N to be used as an
+ * (open drain) output
+ * @setup: optional callback issued once the GPIOs are valid
+ * @teardown: optional callback issued before the GPIOs are invalidated
+ * @context: optional parameter passed to setup() and teardown()
+ *
+ * Board data may be used to package the GPIO (and LED) lines for use
+ * in by the generic GPIO and LED frameworks. The first four GPIOs
+ * starting at gpio_base are GPIO1..GPIO4. The next two are LED1/nPG
+ * and LED2 (with hardware blinking capability, not currently exposed).
+ *
+ * The @setup callback may be used with the kind of board-specific glue
+ * which hands the (now-valid) GPIOs to other drivers, or which puts
+ * devices in their initial states using these GPIOs.
+ */
+struct tps65010_board {
+ int base;
+ unsigned outmask;
+
+ int (*setup)(struct i2c_client *client, void *context);
+ int (*teardown)(struct i2c_client *client, void *context);
+ void *context;
+};
+
#endif /* __LINUX_I2C_TPS65010_H */
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 1f74e1d7415..37a6f5bc4a9 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -151,6 +151,9 @@ extern struct group_info init_groups;
.cpus_allowed = CPU_MASK_ALL, \
.mm = NULL, \
.active_mm = &init_mm, \
+ .se = { \
+ .group_node = LIST_HEAD_INIT(tsk.se.group_node), \
+ }, \
.rt = { \
.run_list = LIST_HEAD_INIT(tsk.rt.run_list), \
.time_slice = HZ, \
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index 412e025bc5c..e600c4e9b8c 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -84,10 +84,10 @@
#define irqs_disabled() \
({ \
- unsigned long flags; \
+ unsigned long _flags; \
\
- raw_local_save_flags(flags); \
- raw_irqs_disabled_flags(flags); \
+ raw_local_save_flags(_flags); \
+ raw_irqs_disabled_flags(_flags); \
})
#define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags)
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index 2cd7fa73d1a..ce5983225be 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -327,4 +327,10 @@ extern void ktime_get_ts(struct timespec *ts);
/* Get the real (wall-) time in timespec format: */
#define ktime_get_real_ts(ts) getnstimeofday(ts)
+static inline ktime_t ns_to_ktime(u64 ns)
+{
+ static const ktime_t ktime_zero = { .tv64 = 0 };
+ return ktime_add_ns(ktime_zero, ns);
+}
+
#endif
diff --git a/include/linux/list.h b/include/linux/list.h
index 75ce2cb4ff6..dac16f99c70 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -631,31 +631,14 @@ static inline void list_splice_init_rcu(struct list_head *list,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_rcu(pos, head) \
- for (pos = (head)->next; \
- prefetch(rcu_dereference(pos)->next), pos != (head); \
- pos = pos->next)
+ for (pos = rcu_dereference((head)->next); \
+ prefetch(pos->next), pos != (head); \
+ pos = rcu_dereference(pos->next))
#define __list_for_each_rcu(pos, head) \
- for (pos = (head)->next; \
- rcu_dereference(pos) != (head); \
- pos = pos->next)
-
-/**
- * list_for_each_safe_rcu
- * @pos: the &struct list_head to use as a loop cursor.
- * @n: another &struct list_head to use as temporary storage
- * @head: the head for your list.
- *
- * Iterate over an rcu-protected list, safe against removal of list entry.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_safe_rcu(pos, n, head) \
- for (pos = (head)->next; \
- n = rcu_dereference(pos)->next, pos != (head); \
- pos = n)
+ for (pos = rcu_dereference((head)->next); \
+ pos != (head); \
+ pos = rcu_dereference(pos->next))
/**
* list_for_each_entry_rcu - iterate over rcu list of given type
@@ -668,10 +651,9 @@ static inline void list_splice_init_rcu(struct list_head *list,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_entry_rcu(pos, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member); \
- prefetch(rcu_dereference(pos)->member.next), \
- &pos->member != (head); \
- pos = list_entry(pos->member.next, typeof(*pos), member))
+ for (pos = list_entry(rcu_dereference((head)->next), typeof(*pos), member); \
+ prefetch(pos->member.next), &pos->member != (head); \
+ pos = list_entry(rcu_dereference(pos->member.next), typeof(*pos), member))
/**
@@ -686,9 +668,9 @@ static inline void list_splice_init_rcu(struct list_head *list,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_continue_rcu(pos, head) \
- for ((pos) = (pos)->next; \
- prefetch(rcu_dereference((pos))->next), (pos) != (head); \
- (pos) = (pos)->next)
+ for ((pos) = rcu_dereference((pos)->next); \
+ prefetch((pos)->next), (pos) != (head); \
+ (pos) = rcu_dereference((pos)->next))
/*
* Double linked lists with a single pointer list head.
@@ -986,10 +968,10 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define hlist_for_each_entry_rcu(tpos, pos, head, member) \
- for (pos = (head)->first; \
- rcu_dereference(pos) && ({ prefetch(pos->next); 1;}) && \
+ for (pos = rcu_dereference((head)->first); \
+ pos && ({ prefetch(pos->next); 1;}) && \
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
+ pos = rcu_dereference(pos->next))
#else
#warning "don't include kernel headers in userspace"
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
new file mode 100644
index 00000000000..c11ff293254
--- /dev/null
+++ b/include/linux/mbus.h
@@ -0,0 +1,36 @@
+/*
+ * Marvell MBUS common definitions.
+ *
+ * Copyright (C) 2008 Marvell Semiconductor
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __LINUX_MBUS_H
+#define __LINUX_MBUS_H
+
+struct mbus_dram_target_info
+{
+ /*
+ * The 4-bit MBUS target ID of the DRAM controller.
+ */
+ u8 mbus_dram_target_id;
+
+ /*
+ * The base address, size, and MBUS attribute ID for each
+ * of the possible DRAM chip selects. Peripherals are
+ * required to support at least 4 decode windows.
+ */
+ int num_cs;
+ struct mbus_dram_window {
+ u8 cs_index;
+ u8 mbus_attr;
+ u32 base;
+ u32 size;
+ } cs[4];
+};
+
+
+#endif
diff --git a/include/linux/mfd/htc-egpio.h b/include/linux/mfd/htc-egpio.h
new file mode 100644
index 00000000000..b4201c97136
--- /dev/null
+++ b/include/linux/mfd/htc-egpio.h
@@ -0,0 +1,57 @@
+/*
+ * HTC simple EGPIO irq and gpio extender
+ */
+
+#ifndef __HTC_EGPIO_H__
+#define __HTC_EGPIO_H__
+
+#include <linux/gpio.h>
+
+/* Descriptive values for all-in or all-out htc_egpio_chip descriptors. */
+#define HTC_EGPIO_OUTPUT (~0)
+#define HTC_EGPIO_INPUT 0
+
+/**
+ * struct htc_egpio_chip - descriptor to create gpio_chip for register range
+ * @reg_start: index of first register
+ * @gpio_base: gpio number of first pin in this register range
+ * @num_gpios: number of gpios in this register range, max BITS_PER_LONG
+ * (number of registers = DIV_ROUND_UP(num_gpios, reg_width))
+ * @direction: bitfield, '0' = input, '1' = output,
+ */
+struct htc_egpio_chip {
+ int reg_start;
+ int gpio_base;
+ int num_gpios;
+ unsigned long direction;
+ unsigned long initial_values;
+};
+
+/**
+ * struct htc_egpio_platform_data - description provided by the arch
+ * @irq_base: beginning of available IRQs (eg, IRQ_BOARD_START)
+ * @num_irqs: number of irqs
+ * @reg_width: number of bits per register, either 8 or 16 bit
+ * @bus_width: alignment of the registers, either 16 or 32 bit
+ * @invert_acks: set if chip requires writing '0' to ack an irq, instead of '1'
+ * @ack_register: location of the irq/ack register
+ * @chip: pointer to array of htc_egpio_chip descriptors
+ * @num_chips: number of egpio chip descriptors
+ */
+struct htc_egpio_platform_data {
+ int bus_width;
+ int reg_width;
+
+ int irq_base;
+ int num_irqs;
+ int invert_acks;
+ int ack_register;
+
+ struct htc_egpio_chip *chip;
+ int num_chips;
+};
+
+/* Determine the wakeup irq, to be called during early resume */
+extern int htc_egpio_get_wakeup_irq(struct device *dev);
+
+#endif
diff --git a/include/linux/mfd/htc-pasic3.h b/include/linux/mfd/htc-pasic3.h
new file mode 100644
index 00000000000..b4294f12c4f
--- /dev/null
+++ b/include/linux/mfd/htc-pasic3.h
@@ -0,0 +1,55 @@
+/*
+ * HTC PASIC3 driver - LEDs and DS1WM
+ *
+ * Copyright (c) 2007 Philipp Zabel <philipp.zabel@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ */
+
+#ifndef __PASIC3_H
+#define __PASIC3_H
+
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+extern void pasic3_write_register(struct device *dev, u32 reg, u8 val);
+extern u8 pasic3_read_register(struct device *dev, u32 reg);
+
+/*
+ * mask for registers 0x20,0x21,0x22
+ */
+#define PASIC3_MASK_LED0 0x04
+#define PASIC3_MASK_LED1 0x08
+#define PASIC3_MASK_LED2 0x40
+
+/*
+ * bits in register 0x06
+ */
+#define PASIC3_BIT2_LED0 0x08
+#define PASIC3_BIT2_LED1 0x10
+#define PASIC3_BIT2_LED2 0x20
+
+struct pasic3_led {
+ struct led_classdev led;
+ unsigned int hw_num;
+ unsigned int bit2;
+ unsigned int mask;
+ struct pasic3_leds_machinfo *pdata;
+};
+
+struct pasic3_leds_machinfo {
+ unsigned int num_leds;
+ unsigned int power_gpio;
+ struct pasic3_led *leds;
+};
+
+struct pasic3_platform_data {
+ struct pasic3_leds_machinfo *led_pdata;
+ unsigned int bus_shift;
+ unsigned int clock_rate;
+};
+
+#endif
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 5ee2df217cd..d6600e3f7e4 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/list.h>
+#include <linux/nodemask.h>
#include <linux/spinlock.h>
#include <asm/atomic.h>
@@ -28,8 +29,10 @@ struct mnt_namespace;
#define MNT_NOATIME 0x08
#define MNT_NODIRATIME 0x10
#define MNT_RELATIME 0x20
+#define MNT_READONLY 0x40 /* does the user want this to be r/o? */
#define MNT_SHRINKABLE 0x100
+#define MNT_IMBALANCED_WRITE_COUNT 0x200 /* just for debugging */
#define MNT_SHARED 0x1000 /* if the vfsmount is a shared mount */
#define MNT_UNBINDABLE 0x2000 /* if the vfsmount is a unbindable mount */
@@ -62,6 +65,11 @@ struct vfsmount {
int mnt_expiry_mark; /* true if marked for expiry */
int mnt_pinned;
int mnt_ghosts;
+ /*
+ * This value is not stable unless all of the mnt_writers[] spinlocks
+ * are held, and all mnt_writer[]s on this mount have 0 as their ->count
+ */
+ atomic_t __mnt_writers;
};
static inline struct vfsmount *mntget(struct vfsmount *mnt)
@@ -71,9 +79,12 @@ static inline struct vfsmount *mntget(struct vfsmount *mnt)
return mnt;
}
+extern int mnt_want_write(struct vfsmount *mnt);
+extern void mnt_drop_write(struct vfsmount *mnt);
extern void mntput_no_expire(struct vfsmount *mnt);
extern void mnt_pin(struct vfsmount *mnt);
extern void mnt_unpin(struct vfsmount *mnt);
+extern int __mnt_is_readonly(struct vfsmount *mnt);
static inline void mntput(struct vfsmount *mnt)
{
diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index 3800639775a..5c80b193963 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -67,4 +67,10 @@
#define PR_CAPBSET_READ 23
#define PR_CAPBSET_DROP 24
+/* Get/set the process' ability to use the timestamp counter instruction */
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
+
#endif /* _LINUX_PRCTL_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a37b5964828..311380e5fe8 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -703,6 +703,7 @@ enum cpu_idle_type {
#define SD_POWERSAVINGS_BALANCE 256 /* Balance for power savings */
#define SD_SHARE_PKG_RESOURCES 512 /* Domain members share cpu pkg resources */
#define SD_SERIALIZE 1024 /* Only a single load balancing instance */
+#define SD_WAKE_IDLE_FAR 2048 /* Gain latency sacrificing cache hit */
#define BALANCE_FOR_MC_POWER \
(sched_smt_power_savings ? SD_POWERSAVINGS_BALANCE : 0)
@@ -732,12 +733,31 @@ struct sched_group {
u32 reciprocal_cpu_power;
};
+enum sched_domain_level {
+ SD_LV_NONE = 0,
+ SD_LV_SIBLING,
+ SD_LV_MC,
+ SD_LV_CPU,
+ SD_LV_NODE,
+ SD_LV_ALLNODES,
+ SD_LV_MAX
+};
+
+struct sched_domain_attr {
+ int relax_domain_level;
+};
+
+#define SD_ATTR_INIT (struct sched_domain_attr) { \
+ .relax_domain_level = -1, \
+}
+
struct sched_domain {
/* These fields must be setup */
struct sched_domain *parent; /* top domain must be null terminated */
struct sched_domain *child; /* bottom domain must be null terminated */
struct sched_group *groups; /* the balancing groups of the domain */
cpumask_t span; /* span of all CPUs in this domain */
+ int first_cpu; /* cache of the first cpu in this domain */
unsigned long min_interval; /* Minimum balance interval ms */
unsigned long max_interval; /* Maximum balance interval ms */
unsigned int busy_factor; /* less balancing by factor if busy */
@@ -749,6 +769,7 @@ struct sched_domain {
unsigned int wake_idx;
unsigned int forkexec_idx;
int flags; /* See SD_* */
+ enum sched_domain_level level;
/* Runtime fields. */
unsigned long last_balance; /* init to jiffies. units in jiffies */
@@ -788,7 +809,8 @@ struct sched_domain {
#endif
};
-extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new);
+extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
+ struct sched_domain_attr *dattr_new);
extern int arch_reinit_sched_domains(void);
#endif /* CONFIG_SMP */
@@ -888,7 +910,8 @@ struct sched_class {
void (*set_curr_task) (struct rq *rq);
void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
void (*task_new) (struct rq *rq, struct task_struct *p);
- void (*set_cpus_allowed)(struct task_struct *p, cpumask_t *newmask);
+ void (*set_cpus_allowed)(struct task_struct *p,
+ const cpumask_t *newmask);
void (*join_domain)(struct rq *rq);
void (*leave_domain)(struct rq *rq);
@@ -922,6 +945,7 @@ struct load_weight {
struct sched_entity {
struct load_weight load; /* for load-balancing */
struct rb_node run_node;
+ struct list_head group_node;
unsigned int on_rq;
u64 exec_start;
@@ -981,6 +1005,7 @@ struct sched_rt_entity {
unsigned long timeout;
int nr_cpus_allowed;
+ struct sched_rt_entity *back;
#ifdef CONFIG_RT_GROUP_SCHED
struct sched_rt_entity *parent;
/* rq on which this entity is (to be) queued: */
@@ -1501,15 +1526,21 @@ static inline void put_task_struct(struct task_struct *t)
#define used_math() tsk_used_math(current)
#ifdef CONFIG_SMP
-extern int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask);
+extern int set_cpus_allowed_ptr(struct task_struct *p,
+ const cpumask_t *new_mask);
#else
-static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
+static inline int set_cpus_allowed_ptr(struct task_struct *p,
+ const cpumask_t *new_mask)
{
- if (!cpu_isset(0, new_mask))
+ if (!cpu_isset(0, *new_mask))
return -EINVAL;
return 0;
}
#endif
+static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
+{
+ return set_cpus_allowed_ptr(p, &new_mask);
+}
extern unsigned long long sched_clock(void);
@@ -1550,7 +1581,6 @@ static inline void wake_up_idle_cpu(int cpu) { }
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
extern unsigned int sysctl_sched_wakeup_granularity;
-extern unsigned int sysctl_sched_batch_wakeup_granularity;
extern unsigned int sysctl_sched_child_runs_first;
extern unsigned int sysctl_sched_features;
extern unsigned int sysctl_sched_migration_cost;
@@ -1563,6 +1593,10 @@ int sched_nr_latency_handler(struct ctl_table *table, int write,
extern unsigned int sysctl_sched_rt_period;
extern int sysctl_sched_rt_runtime;
+int sched_rt_handler(struct ctl_table *table, int write,
+ struct file *filp, void __user *buffer, size_t *lenp,
+ loff_t *ppos);
+
extern unsigned int sysctl_sched_compat_yield;
#ifdef CONFIG_RT_MUTEXES
@@ -2030,7 +2064,7 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm)
}
#endif
-extern long sched_setaffinity(pid_t pid, cpumask_t new_mask);
+extern long sched_setaffinity(pid_t pid, const cpumask_t *new_mask);
extern long sched_getaffinity(pid_t pid, cpumask_t *mask);
extern int sched_mc_power_savings, sched_smt_power_savings;
@@ -2040,8 +2074,11 @@ extern void normalize_rt_tasks(void);
#ifdef CONFIG_GROUP_SCHED
extern struct task_group init_task_group;
+#ifdef CONFIG_USER_SCHED
+extern struct task_group root_task_group;
+#endif
-extern struct task_group *sched_create_group(void);
+extern struct task_group *sched_create_group(struct task_group *parent);
extern void sched_destroy_group(struct task_group *tg);
extern void sched_move_task(struct task_struct *tsk);
#ifdef CONFIG_FAIR_GROUP_SCHED
@@ -2052,6 +2089,9 @@ extern unsigned long sched_group_shares(struct task_group *tg);
extern int sched_group_set_rt_runtime(struct task_group *tg,
long rt_runtime_us);
extern long sched_group_rt_runtime(struct task_group *tg);
+extern int sched_group_set_rt_period(struct task_group *tg,
+ long rt_period_us);
+extern long sched_group_rt_period(struct task_group *tg);
#endif
#endif
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index f752e73bf97..f2767bc6b73 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -45,12 +45,16 @@ struct sysdev_class_attribute {
ssize_t (*store)(struct sysdev_class *, const char *, size_t);
};
-#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \
-struct sysdev_class_attribute attr_##_name = { \
+#define _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \
+{ \
.attr = {.name = __stringify(_name), .mode = _mode }, \
.show = _show, \
.store = _store, \
-};
+}
+
+#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \
+ struct sysdev_class_attribute attr_##_name = \
+ _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)
extern int sysdev_class_register(struct sysdev_class *);
@@ -100,15 +104,16 @@ struct sysdev_attribute {
};
-#define _SYSDEV_ATTR(_name,_mode,_show,_store) \
+#define _SYSDEV_ATTR(_name, _mode, _show, _store) \
{ \
.attr = { .name = __stringify(_name), .mode = _mode }, \
.show = _show, \
.store = _store, \
}
-#define SYSDEV_ATTR(_name,_mode,_show,_store) \
-struct sysdev_attribute attr_##_name = _SYSDEV_ATTR(_name,_mode,_show,_store);
+#define SYSDEV_ATTR(_name, _mode, _show, _store) \
+ struct sysdev_attribute attr_##_name = \
+ _SYSDEV_ATTR(_name, _mode, _show, _store);
extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *);
extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *);
diff --git a/include/linux/topology.h b/include/linux/topology.h
index bd14f8b30f0..4bb7074a2c3 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -38,16 +38,15 @@
#endif
#ifndef nr_cpus_node
-#define nr_cpus_node(node) \
- ({ \
- cpumask_t __tmp__; \
- __tmp__ = node_to_cpumask(node); \
- cpus_weight(__tmp__); \
+#define nr_cpus_node(node) \
+ ({ \
+ node_to_cpumask_ptr(__tmp__, node); \
+ cpus_weight(*__tmp__); \
})
#endif
-#define for_each_node_with_cpus(node) \
- for_each_online_node(node) \
+#define for_each_node_with_cpus(node) \
+ for_each_online_node(node) \
if (nr_cpus_node(node))
void arch_update_cpu_topology(void);
@@ -80,7 +79,9 @@ void arch_update_cpu_topology(void);
* by defining their own arch-specific initializer in include/asm/topology.h.
* A definition there will automagically override these default initializers
* and allow arch-specific performance tuning of sched_domains.
+ * (Only non-zero and non-null fields need be specified.)
*/
+
#ifdef CONFIG_SCHED_SMT
/* MCD - Do we really need this? It is always on if CONFIG_SCHED_SMT is,
* so can't we drop this in favor of CONFIG_SCHED_SMT?
@@ -89,20 +90,10 @@ void arch_update_cpu_topology(void);
/* Common values for SMT siblings */
#ifndef SD_SIBLING_INIT
#define SD_SIBLING_INIT (struct sched_domain) { \
- .span = CPU_MASK_NONE, \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
.min_interval = 1, \
.max_interval = 2, \
.busy_factor = 64, \
.imbalance_pct = 110, \
- .cache_nice_tries = 0, \
- .busy_idx = 0, \
- .idle_idx = 0, \
- .newidle_idx = 0, \
- .wake_idx = 0, \
- .forkexec_idx = 0, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_FORK \
@@ -112,7 +103,6 @@ void arch_update_cpu_topology(void);
| SD_SHARE_CPUPOWER, \
.last_balance = jiffies, \
.balance_interval = 1, \
- .nr_balance_failed = 0, \
}
#endif
#endif /* CONFIG_SCHED_SMT */
@@ -121,18 +111,12 @@ void arch_update_cpu_topology(void);
/* Common values for MC siblings. for now mostly derived from SD_CPU_INIT */
#ifndef SD_MC_INIT
#define SD_MC_INIT (struct sched_domain) { \
- .span = CPU_MASK_NONE, \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
.min_interval = 1, \
.max_interval = 4, \
.busy_factor = 64, \
.imbalance_pct = 125, \
.cache_nice_tries = 1, \
.busy_idx = 2, \
- .idle_idx = 0, \
- .newidle_idx = 0, \
.wake_idx = 1, \
.forkexec_idx = 1, \
.flags = SD_LOAD_BALANCE \
@@ -144,7 +128,6 @@ void arch_update_cpu_topology(void);
| BALANCE_FOR_MC_POWER, \
.last_balance = jiffies, \
.balance_interval = 1, \
- .nr_balance_failed = 0, \
}
#endif
#endif /* CONFIG_SCHED_MC */
@@ -152,10 +135,6 @@ void arch_update_cpu_topology(void);
/* Common values for CPUs */
#ifndef SD_CPU_INIT
#define SD_CPU_INIT (struct sched_domain) { \
- .span = CPU_MASK_NONE, \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
.min_interval = 1, \
.max_interval = 4, \
.busy_factor = 64, \
@@ -174,16 +153,11 @@ void arch_update_cpu_topology(void);
| BALANCE_FOR_PKG_POWER,\
.last_balance = jiffies, \
.balance_interval = 1, \
- .nr_balance_failed = 0, \
}
#endif
/* sched_domains SD_ALLNODES_INIT for NUMA machines */
#define SD_ALLNODES_INIT (struct sched_domain) { \
- .span = CPU_MASK_NONE, \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
.min_interval = 64, \
.max_interval = 64*num_online_cpus(), \
.busy_factor = 128, \
@@ -191,14 +165,10 @@ void arch_update_cpu_topology(void);
.cache_nice_tries = 1, \
.busy_idx = 3, \
.idle_idx = 3, \
- .newidle_idx = 0, /* unused */ \
- .wake_idx = 0, /* unused */ \
- .forkexec_idx = 0, /* unused */ \
.flags = SD_LOAD_BALANCE \
| SD_SERIALIZE, \
.last_balance = jiffies, \
.balance_interval = 64, \
- .nr_balance_failed = 0, \
}
#ifdef CONFIG_NUMA
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-16 08:53:33 +0000