diff options
Diffstat (limited to 'include')
31 files changed, 369 insertions, 55 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 5afa5b52063e..beafc156a535 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -432,6 +432,10 @@ extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo); * together with the @destroy function, * enables driver-specific objects derived from a ttm_buffer_object. * On successful return, the object kref and list_kref are set to 1. + * If a failure occurs, the function will call the @destroy function, or + * kfree() if @destroy is NULL. Thus, after a failure, dereferencing @bo is + * illegal and will likely cause memory corruption. + * * Returns * -ENOMEM: Out of memory. * -EINVAL: Invalid placement flags. diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index d01b4ddbdc56..8e0c848326b6 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -206,14 +206,84 @@ struct ttm_tt { struct ttm_mem_type_manager; struct ttm_mem_type_manager_func { + /** + * struct ttm_mem_type_manager member init + * + * @man: Pointer to a memory type manager. + * @p_size: Implementation dependent, but typically the size of the + * range to be managed in pages. + * + * Called to initialize a private range manager. The function is + * expected to initialize the man::priv member. + * Returns 0 on success, negative error code on failure. + */ int (*init)(struct ttm_mem_type_manager *man, unsigned long p_size); + + /** + * struct ttm_mem_type_manager member takedown + * + * @man: Pointer to a memory type manager. + * + * Called to undo the setup done in init. All allocated resources + * should be freed. + */ int (*takedown)(struct ttm_mem_type_manager *man); + + /** + * struct ttm_mem_type_manager member get_node + * + * @man: Pointer to a memory type manager. + * @bo: Pointer to the buffer object we're allocating space for. + * @placement: Placement details. + * @mem: Pointer to a struct ttm_mem_reg to be filled in. + * + * This function should allocate space in the memory type managed + * by @man. Placement details if + * applicable are given by @placement. If successful, + * @mem::mm_node should be set to a non-null value, and + * @mem::start should be set to a value identifying the beginning + * of the range allocated, and the function should return zero. + * If the memory region accomodate the buffer object, @mem::mm_node + * should be set to NULL, and the function should return 0. + * If a system error occured, preventing the request to be fulfilled, + * the function should return a negative error code. + * + * Note that @mem::mm_node will only be dereferenced by + * struct ttm_mem_type_manager functions and optionally by the driver, + * which has knowledge of the underlying type. + * + * This function may not be called from within atomic context, so + * an implementation can and must use either a mutex or a spinlock to + * protect any data structures managing the space. + */ int (*get_node)(struct ttm_mem_type_manager *man, struct ttm_buffer_object *bo, struct ttm_placement *placement, struct ttm_mem_reg *mem); + + /** + * struct ttm_mem_type_manager member put_node + * + * @man: Pointer to a memory type manager. + * @mem: Pointer to a struct ttm_mem_reg to be filled in. + * + * This function frees memory type resources previously allocated + * and that are identified by @mem::mm_node and @mem::start. May not + * be called from within atomic context. + */ void (*put_node)(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem); + + /** + * struct ttm_mem_type_manager member debug + * + * @man: Pointer to a memory type manager. + * @prefix: Prefix to be used in printout to identify the caller. + * + * This function is called to print out the state of the memory + * type manager to aid debugging of out-of-memory conditions. + * It may not be called from within atomic context. + */ void (*debug)(struct ttm_mem_type_manager *man, const char *prefix); }; @@ -231,14 +301,13 @@ struct ttm_mem_type_manager { uint64_t size; uint32_t available_caching; uint32_t default_caching; + const struct ttm_mem_type_manager_func *func; + void *priv; /* - * Protected by the bdev->lru_lock. - * TODO: Consider one lru_lock per ttm_mem_type_manager. - * Plays ill with list removal, though. + * Protected by the global->lru_lock. */ - const struct ttm_mem_type_manager_func *func; - void *priv; + struct list_head lru; }; diff --git a/include/linux/atomic.h b/include/linux/atomic.h new file mode 100644 index 000000000000..96c038e43d66 --- /dev/null +++ b/include/linux/atomic.h @@ -0,0 +1,37 @@ +#ifndef _LINUX_ATOMIC_H +#define _LINUX_ATOMIC_H +#include <asm/atomic.h> + +/** + * atomic_inc_not_zero_hint - increment if not null + * @v: pointer of type atomic_t + * @hint: probable value of the atomic before the increment + * + * This version of atomic_inc_not_zero() gives a hint of probable + * value of the atomic. This helps processor to not read the memory + * before doing the atomic read/modify/write cycle, lowering + * number of bus transactions on some arches. + * + * Returns: 0 if increment was not done, 1 otherwise. + */ +#ifndef atomic_inc_not_zero_hint +static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint) +{ + int val, c = hint; + + /* sanity test, should be removed by compiler if hint is a constant */ + if (!hint) + return atomic_inc_not_zero(v); + + do { + val = atomic_cmpxchg(v, c, c + 1); + if (val == c) + return 1; + c = val; + } while (c); + + return 0; +} +#endif + +#endif /* _LINUX_ATOMIC_H */ diff --git a/include/linux/bio.h b/include/linux/bio.h index ba679992d39b..35dcdb3589bc 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -66,10 +66,6 @@ #define bio_offset(bio) bio_iovec((bio))->bv_offset #define bio_segments(bio) ((bio)->bi_vcnt - (bio)->bi_idx) #define bio_sectors(bio) ((bio)->bi_size >> 9) -#define bio_empty_barrier(bio) \ - ((bio->bi_rw & REQ_HARDBARRIER) && \ - !bio_has_data(bio) && \ - !(bio->bi_rw & REQ_DISCARD)) static inline unsigned int bio_cur_bytes(struct bio *bio) { diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 0437ab6bb54c..46ad5197537a 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -122,7 +122,6 @@ enum rq_flag_bits { __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */ __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */ - __REQ_HARDBARRIER, /* may not be passed by drive either */ __REQ_SYNC, /* request is sync (sync write or read) */ __REQ_META, /* metadata io request */ __REQ_DISCARD, /* request to discard sectors */ @@ -159,7 +158,6 @@ enum rq_flag_bits { #define REQ_FAILFAST_DEV (1 << __REQ_FAILFAST_DEV) #define REQ_FAILFAST_TRANSPORT (1 << __REQ_FAILFAST_TRANSPORT) #define REQ_FAILFAST_DRIVER (1 << __REQ_FAILFAST_DRIVER) -#define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER) #define REQ_SYNC (1 << __REQ_SYNC) #define REQ_META (1 << __REQ_META) #define REQ_DISCARD (1 << __REQ_DISCARD) @@ -168,8 +166,8 @@ enum rq_flag_bits { #define REQ_FAILFAST_MASK \ (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER) #define REQ_COMMON_MASK \ - (REQ_WRITE | REQ_FAILFAST_MASK | REQ_HARDBARRIER | REQ_SYNC | \ - REQ_META | REQ_DISCARD | REQ_NOIDLE | REQ_FLUSH | REQ_FUA) + (REQ_WRITE | REQ_FAILFAST_MASK | REQ_SYNC | REQ_META | REQ_DISCARD | \ + REQ_NOIDLE | REQ_FLUSH | REQ_FUA) #define REQ_CLONE_MASK REQ_COMMON_MASK #define REQ_UNPLUG (1 << __REQ_UNPLUG) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 5027a599077d..aae86fd10c4f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -552,8 +552,7 @@ static inline void blk_clear_queue_full(struct request_queue *q, int sync) * it already be started by driver. */ #define RQ_NOMERGE_FLAGS \ - (REQ_NOMERGE | REQ_STARTED | REQ_HARDBARRIER | REQ_SOFTBARRIER | \ - REQ_FLUSH | REQ_FUA) + (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA) #define rq_mergeable(rq) \ (!((rq)->cmd_flags & RQ_NOMERGE_FLAGS) && \ (((rq)->cmd_flags & REQ_DISCARD) || \ diff --git a/include/linux/drbd.h b/include/linux/drbd.h index 9b2a0158f399..ef44c7a0638c 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -53,7 +53,7 @@ extern const char *drbd_buildtag(void); -#define REL_VERSION "8.3.9rc2" +#define REL_VERSION "8.3.9" #define API_VERSION 88 #define PRO_VERSION_MIN 86 #define PRO_VERSION_MAX 95 diff --git a/include/linux/highmem.h b/include/linux/highmem.h index e9138198e823..b676c585574e 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h @@ -5,6 +5,7 @@ #include <linux/kernel.h> #include <linux/mm.h> #include <linux/uaccess.h> +#include <linux/hardirq.h> #include <asm/cacheflush.h> diff --git a/include/linux/i2c/adp5588.h b/include/linux/i2c/adp5588.h index 3c5d6b6e765c..cec17cf6cac2 100644 --- a/include/linux/i2c/adp5588.h +++ b/include/linux/i2c/adp5588.h @@ -1,7 +1,7 @@ /* * Analog Devices ADP5588 I/O Expander and QWERTY Keypad Controller * - * Copyright 2009 Analog Devices Inc. + * Copyright 2009-2010 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ @@ -77,13 +77,26 @@ /* Configuration Register1 */ #define ADP5588_AUTO_INC (1 << 7) #define ADP5588_GPIEM_CFG (1 << 6) +#define ADP5588_OVR_FLOW_M (1 << 5) #define ADP5588_INT_CFG (1 << 4) +#define ADP5588_OVR_FLOW_IEN (1 << 3) +#define ADP5588_K_LCK_IM (1 << 2) #define ADP5588_GPI_IEN (1 << 1) +#define ADP5588_KE_IEN (1 << 0) /* Interrupt Status Register */ +#define ADP5588_CMP2_INT (1 << 5) +#define ADP5588_CMP1_INT (1 << 4) +#define ADP5588_OVR_FLOW_INT (1 << 3) +#define ADP5588_K_LCK_INT (1 << 2) #define ADP5588_GPI_INT (1 << 1) #define ADP5588_KE_INT (1 << 0) +/* Key Lock and Event Counter Register */ +#define ADP5588_K_LCK_EN (1 << 6) +#define ADP5588_LCK21 0x30 +#define ADP5588_KEC 0xF + #define ADP5588_MAXGPIO 18 #define ADP5588_BANK(offs) ((offs) >> 3) #define ADP5588_BIT(offs) (1u << ((offs) & 0x7)) diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index c2f3a72712ce..635e1faec412 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -339,6 +339,31 @@ static inline int vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci) } } +/** + * vlan_get_protocol - get protocol EtherType. + * @skb: skbuff to query + * + * Returns the EtherType of the packet, regardless of whether it is + * vlan encapsulated (normal or hardware accelerated) or not. + */ +static inline __be16 vlan_get_protocol(const struct sk_buff *skb) +{ + __be16 protocol = 0; + + if (vlan_tx_tag_present(skb) || + skb->protocol != cpu_to_be16(ETH_P_8021Q)) + protocol = skb->protocol; + else { + __be16 proto, *protop; + protop = skb_header_pointer(skb, offsetof(struct vlan_ethhdr, + h_vlan_encapsulated_proto), + sizeof(proto), &proto); + if (likely(protop)) + protocol = *protop; + } + + return protocol; +} #endif /* __KERNEL__ */ /* VLAN IOCTLs are found in sockios.h */ diff --git a/include/linux/input.h b/include/linux/input.h index 51af441f3a21..6ef44465db8d 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -1406,6 +1406,8 @@ static inline void input_set_drvdata(struct input_dev *dev, void *data) int __must_check input_register_device(struct input_dev *); void input_unregister_device(struct input_dev *); +void input_reset_device(struct input_dev *); + int __must_check input_register_handler(struct input_handler *); void input_unregister_handler(struct input_handler *); @@ -1421,7 +1423,7 @@ void input_release_device(struct input_handle *); int input_open_device(struct input_handle *); void input_close_device(struct input_handle *); -int input_flush_device(struct input_handle* handle, struct file* file); +int input_flush_device(struct input_handle *handle, struct file *file); void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value); void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value); diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h index 3e70b21884a9..b2eee896dcbc 100644 --- a/include/linux/iocontext.h +++ b/include/linux/iocontext.h @@ -76,7 +76,6 @@ int put_io_context(struct io_context *ioc); void exit_io_context(struct task_struct *task); struct io_context *get_io_context(gfp_t gfp_flags, int node); struct io_context *alloc_io_context(gfp_t gfp_flags, int node); -void copy_io_context(struct io_context **pdst, struct io_context **psrc); #else static inline void exit_io_context(struct task_struct *task) { diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 450092c1e35f..fc3da9e4da19 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -60,7 +60,7 @@ extern const char linux_proc_banner[]; #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define roundup(x, y) ( \ { \ - typeof(y) __y = y; \ + const typeof(y) __y = y; \ (((x) + (__y - 1)) / __y) * __y; \ } \ ) @@ -293,6 +293,7 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, unsigned int interval_msec); extern int printk_delay_msec; +extern int dmesg_restrict; /* * Print a one-time message (analogous to WARN_ONCE() et al): diff --git a/include/linux/leds-lp5521.h b/include/linux/leds-lp5521.h new file mode 100644 index 000000000000..38368d785f08 --- /dev/null +++ b/include/linux/leds-lp5521.h @@ -0,0 +1,47 @@ +/* + * LP5521 LED chip driver. + * + * Copyright (C) 2010 Nokia Corporation + * + * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> + * + * 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. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_LP5521_H +#define __LINUX_LP5521_H + +/* See Documentation/leds/leds-lp5521.txt */ + +struct lp5521_led_config { + u8 chan_nr; + u8 led_current; /* mA x10, 0 if led is not connected */ + u8 max_current; +}; + +#define LP5521_CLOCK_AUTO 0 +#define LP5521_CLOCK_INT 1 +#define LP5521_CLOCK_EXT 2 + +struct lp5521_platform_data { + struct lp5521_led_config *led_config; + u8 num_channels; + u8 clock_mode; + int (*setup_resources)(void); + void (*release_resources)(void); + void (*enable)(bool state); +}; + +#endif /* __LINUX_LP5521_H */ diff --git a/include/linux/leds-lp5523.h b/include/linux/leds-lp5523.h new file mode 100644 index 000000000000..796747637b80 --- /dev/null +++ b/include/linux/leds-lp5523.h @@ -0,0 +1,47 @@ +/* + * LP5523 LED Driver + * + * Copyright (C) 2010 Nokia Corporation + * + * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> + * + * 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. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_LP5523_H +#define __LINUX_LP5523_H + +/* See Documentation/leds/leds-lp5523.txt */ + +struct lp5523_led_config { + u8 chan_nr; + u8 led_current; /* mA x10, 0 if led is not connected */ + u8 max_current; +}; + +#define LP5523_CLOCK_AUTO 0 +#define LP5523_CLOCK_INT 1 +#define LP5523_CLOCK_EXT 2 + +struct lp5523_platform_data { + struct lp5523_led_config *led_config; + u8 num_channels; + u8 clock_mode; + int (*setup_resources)(void); + void (*release_resources)(void); + void (*enable)(bool state); +}; + +#endif /* __LINUX_LP5523_H */ diff --git a/include/linux/leds.h b/include/linux/leds.h index ba6986a11663..0f19df9e37b0 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -15,6 +15,7 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/rwsem.h> +#include <linux/timer.h> struct device; /* @@ -45,10 +46,14 @@ struct led_classdev { /* Get LED brightness level */ enum led_brightness (*brightness_get)(struct led_classdev *led_cdev); - /* Activate hardware accelerated blink, delays are in - * miliseconds and if none is provided then a sensible default - * should be chosen. The call can adjust the timings if it can't - * match the values specified exactly. */ + /* + * Activate hardware accelerated blink, delays are in milliseconds + * and if both are zero then a sensible default should be chosen. + * The call should adjust the timings in that case and if it can't + * match the values specified exactly. + * Deactivate blinking again when the brightness is set to a fixed + * value via the brightness_set() callback. + */ int (*blink_set)(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off); @@ -57,6 +62,10 @@ struct led_classdev { struct list_head node; /* LED Device list */ const char *default_trigger; /* Trigger to use */ + unsigned long blink_delay_on, blink_delay_off; + struct timer_list blink_timer; + int blink_brightness; + #ifdef CONFIG_LEDS_TRIGGERS /* Protects the trigger data below */ struct rw_semaphore trigger_lock; @@ -73,6 +82,36 @@ extern void led_classdev_unregister(struct led_classdev *led_cdev); extern void led_classdev_suspend(struct led_classdev *led_cdev); extern void led_classdev_resume(struct led_classdev *led_cdev); +/** + * led_blink_set - set blinking with software fallback + * @led_cdev: the LED to start blinking + * @delay_on: the time it should be on (in ms) + * @delay_off: the time it should ble off (in ms) + * + * This function makes the LED blink, attempting to use the + * hardware acceleration if possible, but falling back to + * software blinking if there is no hardware blinking or if + * the LED refuses the passed values. + * + * Note that if software blinking is active, simply calling + * led_cdev->brightness_set() will not stop the blinking, + * use led_classdev_brightness_set() instead. + */ +extern void led_blink_set(struct led_classdev *led_cdev, + unsigned long *delay_on, + unsigned long *delay_off); +/** + * led_brightness_set - set LED brightness + * @led_cdev: the LED to set + * @brightness: the brightness to set it to + * + * Set an LED's brightness, and, if necessary, cancel the + * software blink timer that implements blinking when the + * hardware doesn't. + */ +extern void led_brightness_set(struct led_classdev *led_cdev, + enum led_brightness brightness); + /* * LED Triggers */ diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 072652d94d9f..d8fd2c23a1b9 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1554,6 +1554,11 @@ static inline void netif_tx_wake_all_queues(struct net_device *dev) static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) { + if (WARN_ON(!dev_queue)) { + printk(KERN_INFO "netif_stop_queue() cannot be called before " + "register_netdev()"); + return; + } set_bit(__QUEUE_STATE_XOFF, &dev_queue->state); } diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index 89341c32631a..03317c8d4077 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -215,7 +215,7 @@ NF_HOOK_COND(uint8_t pf, unsigned int hook, struct sk_buff *skb, int ret; if (!cond || - (ret = nf_hook_thresh(pf, hook, skb, in, out, okfn, INT_MIN) == 1)) + ((ret = nf_hook_thresh(pf, hook, skb, in, out, okfn, INT_MIN)) == 1)) ret = okfn(skb); return ret; } diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 057bf22a8323..40150f345982 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -747,6 +747,16 @@ struct perf_event { u64 tstamp_running; u64 tstamp_stopped; + /* + * timestamp shadows the actual context timing but it can + * be safely used in NMI interrupt context. It reflects the + * context time as it was when the event was last scheduled in. + * + * ctx_time already accounts for ctx->timestamp. Therefore to + * compute ctx_time for a sample, simply add perf_clock(). + */ + u64 shadow_ctx_time; + struct perf_event_attr attr; struct hw_perf_event hw; diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h index 01b3d759f1fc..e031e1a486d9 100644 --- a/include/linux/pwm_backlight.h +++ b/include/linux/pwm_backlight.h @@ -8,6 +8,7 @@ struct platform_pwm_backlight_data { int pwm_id; unsigned int max_brightness; unsigned int dft_brightness; + unsigned int lth_brightness; unsigned int pwm_period_ns; int (*init)(struct device *dev); int (*notify)(struct device *dev, int brightness); diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index a39cbed9ee17..ab2baa5c4884 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -34,19 +34,13 @@ * needed for RCU lookups (because root->height is unreliable). The only * time callers need worry about this is when doing a lookup_slot under * RCU. + * + * Indirect pointer in fact is also used to tag the last pointer of a node + * when it is shrunk, before we rcu free the node. See shrink code for + * details. */ #define RADIX_TREE_INDIRECT_PTR 1 -#define RADIX_TREE_RETRY ((void *)-1UL) - -static inline void *radix_tree_ptr_to_indirect(void *ptr) -{ - return (void *)((unsigned long)ptr | RADIX_TREE_INDIRECT_PTR); -} -static inline void *radix_tree_indirect_to_ptr(void *ptr) -{ - return (void *)((unsigned long)ptr & ~RADIX_TREE_INDIRECT_PTR); -} #define radix_tree_indirect_to_ptr(ptr) \ radix_tree_indirect_to_ptr((void __force *)(ptr)) @@ -140,16 +134,29 @@ do { \ * removed. * * For use with radix_tree_lookup_slot(). Caller must hold tree at least read - * locked across slot lookup and dereference. More likely, will be used with - * radix_tree_replace_slot(), as well, so caller will hold tree write locked. + * locked across slot lookup and dereference. Not required if write lock is + * held (ie. items cannot be concurrently inserted). + * + * radix_tree_deref_retry must be used to confirm validity of the pointer if + * only the read lock is held. */ static inline void *radix_tree_deref_slot(void **pslot) { - void *ret = rcu_dereference(*pslot); - if (unlikely(radix_tree_is_indirect_ptr(ret))) - ret = RADIX_TREE_RETRY; - return ret; + return rcu_dereference(*pslot); } + +/** + * radix_tree_deref_retry - check radix_tree_deref_slot + * @arg: pointer returned by radix_tree_deref_slot + * Returns: 0 if retry is not required, otherwise retry is required + * + * radix_tree_deref_retry must be used with radix_tree_deref_slot. + */ +static inline int radix_tree_deref_retry(void *arg) +{ + return unlikely((unsigned long)arg & RADIX_TREE_INDIRECT_PTR); +} + /** * radix_tree_replace_slot - replace item in a slot * @pslot: pointer to slot, returned by radix_tree_lookup_slot diff --git a/include/linux/resource.h b/include/linux/resource.h index 88d36f9145ba..d01c96c1966e 100644 --- a/include/linux/resource.h +++ b/include/linux/resource.h @@ -2,6 +2,7 @@ #define _LINUX_RESOURCE_H #include <linux/time.h> +#include <linux/types.h> /* * Resource control/accounting header file for linux diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index bbdb680ffbe9..aea0d438e3c7 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -82,18 +82,28 @@ struct svc_xprt { struct net *xpt_net; }; -static inline void register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) +static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) { spin_lock(&xpt->xpt_lock); - list_add(&u->list, &xpt->xpt_users); + list_del_init(&u->list); spin_unlock(&xpt->xpt_lock); } -static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) +static inline int register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) { spin_lock(&xpt->xpt_lock); - list_del_init(&u->list); + if (test_bit(XPT_CLOSE, &xpt->xpt_flags)) { + /* + * The connection is about to be deleted soon (or, + * worse, may already be deleted--in which case we've + * already notified the xpt_users). + */ + spin_unlock(&xpt->xpt_lock); + return -ENOTCONN; + } + list_add(&u->list, &xpt->xpt_users); spin_unlock(&xpt->xpt_lock); + return 0; } int svc_reg_xprt_class(struct svc_xprt_class *); diff --git a/include/linux/tty.h b/include/linux/tty.h index 2a754748dd5f..c7ea9bc8897c 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -50,7 +50,7 @@ #define N_V253 19 /* Codec control over voice modem */ #define N_CAIF 20 /* CAIF protocol for talking to modems */ #define N_GSM0710 21 /* GSM 0710 Mux */ -#define N_TI_WL 22 /* for TI's WL BT, FM, GPS combo chips */ +#define N_TI_WL 22 /* for TI's WL BT, FM, GPS combo chips */ /* * This character is the same as _POSIX_VDISABLE: it cannot be used as diff --git a/include/linux/usb.h b/include/linux/usb.h index 35fe6ab222bb..24300d8a1bc1 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -797,7 +797,7 @@ struct usbdrv_wrap { * @disconnect: Called when the interface is no longer accessible, usually * because its device has been (or is being) disconnected or the * driver module is being unloaded. - * @ioctl: Used for drivers that want to talk to userspace through + * @unlocked_ioctl: Used for drivers that want to talk to userspace through * the "usbfs" filesystem. This lets devices provide ways to * expose information to user space regardless of where they * do (or don't) show up otherwise in the filesystem. diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h index ee2dd1d506ed..2387f9fc8138 100644 --- a/include/linux/usb/musb.h +++ b/include/linux/usb/musb.h @@ -89,6 +89,8 @@ struct musb_hdrc_config { /* A GPIO controlling VRSEL in Blackfin */ unsigned int gpio_vrsel; unsigned int gpio_vrsel_active; + /* musb CLKIN in Blackfin in MHZ */ + unsigned char clkin; #endif }; diff --git a/include/net/dn.h b/include/net/dn.h index e5469f7b67a3..a514a3cf4573 100644 --- a/include/net/dn.h +++ b/include/net/dn.h @@ -225,7 +225,7 @@ extern int decnet_di_count; extern int decnet_dr_count; extern int decnet_no_fc_max_cwnd; -extern int sysctl_decnet_mem[3]; +extern long sysctl_decnet_mem[3]; extern int sysctl_decnet_wmem[3]; extern int sysctl_decnet_rmem[3]; diff --git a/include/net/dst_ops.h b/include/net/dst_ops.h index 1fa5306e3e23..51665b3461b8 100644 --- a/include/net/dst_ops.h +++ b/include/net/dst_ops.h @@ -2,6 +2,7 @@ #define _NET_DST_OPS_H #include <linux/types.h> #include <linux/percpu_counter.h> +#include <linux/cache.h> struct dst_entry; struct kmem_cachep; diff --git a/include/net/sock.h b/include/net/sock.h index c7a736228ca2..a6338d039857 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -762,7 +762,7 @@ struct proto { /* Memory pressure */ void (*enter_memory_pressure)(struct sock *sk); - atomic_t *memory_allocated; /* Current allocated memory. */ + atomic_long_t *memory_allocated; /* Current allocated memory. */ struct percpu_counter *sockets_allocated; /* Current number of sockets. */ /* * Pressure flag: try to collapse. @@ -771,7 +771,7 @@ struct proto { * is strict, actions are advisory and have some latency. */ int *memory_pressure; - int *sysctl_mem; + long *sysctl_mem; int *sysctl_wmem; int *sysctl_rmem; int max_header; diff --git a/include/net/tcp.h b/include/net/tcp.h index 4fee0424af7e..e36c874c7fb1 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -224,7 +224,7 @@ extern int sysctl_tcp_fack; extern int sysctl_tcp_reordering; extern int sysctl_tcp_ecn; extern int sysctl_tcp_dsack; -extern int sysctl_tcp_mem[3]; +extern long sysctl_tcp_mem[3]; extern int sysctl_tcp_wmem[3]; extern int sysctl_tcp_rmem[3]; extern int sysctl_tcp_app_win; @@ -247,7 +247,7 @@ extern int sysctl_tcp_cookie_size; extern int sysctl_tcp_thin_linear_timeouts; extern int sysctl_tcp_thin_dupack; -extern atomic_t tcp_memory_allocated; +extern atomic_long_t tcp_memory_allocated; extern struct percpu_counter tcp_sockets_allocated; extern int tcp_memory_pressure; @@ -280,7 +280,7 @@ static inline bool tcp_too_many_orphans(struct sock *sk, int shift) } if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && - atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]) + atomic_long_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]) return true; return false; } diff --git a/include/net/udp.h b/include/net/udp.h index 200b82848c9a..bb967dd59bf7 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -105,10 +105,10 @@ static inline struct udp_hslot *udp_hashslot2(struct udp_table *table, extern struct proto udp_prot; -extern atomic_t udp_memory_allocated; +extern atomic_long_t udp_memory_allocated; /* sysctl variables for udp */ -extern int sysctl_udp_mem[3]; +extern long sysctl_udp_mem[3]; extern int sysctl_udp_rmem_min; extern int sysctl_udp_wmem_min; |