hash_futex – Return the hash bucket in the global hash Synopsis struct futex_hash_bucket *hash_futex(union futex_key *key); Arguments key Pointer to the futex key for which the hash is calculated Description We hash on the keys returned from get_futex_key (see below) and return the corresponding hash bucket in the global hash. Author Rusty Russell <rusty [at]…
handle_untracked_irq – Simple and software-decoded IRQs. Synopsis void handle_untracked_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Untracked interrupts are sent from a demultiplexing interrupt handler when the demultiplexer does not know which device it its multiplexed irq domain generated the interrupt. IRQ’s handled through here are not subjected to stats…
handle_simple_irq – Simple and software-decoded IRQs. Synopsis void handle_simple_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Simple interrupts are either sent from a demultiplexing interrupt handler or come from hardware, where no interrupt hardware control is necessary. Note The caller is expected to handle the ack, clear, mask and unmask…
handle_percpu_irq – Per CPU local irq handler Synopsis void handle_percpu_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Per CPU interrupts on SMP machines without locking requirements Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
handle_percpu_devid_irq – Per CPU local irq handler with per cpu dev ids Synopsis void handle_percpu_devid_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Per CPU interrupts on SMP machines without locking requirements. Same as handle_percpu_irq above but with the following extras: action->percpu_dev_id is a pointer to percpu variables which contain the…
handle_level_irq – Level type irq handler Synopsis void handle_level_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Level type interrupts are active as long as the hardware line has the active level. This may require to mask the interrupt and unmask it after the associated handler has acknowledged the device, so…
handle_fasteoi_irq – irq handler for transparent controllers Synopsis void handle_fasteoi_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Only a single callback will be issued to the chip: an ->eoi call when the interrupt has been serviced. This enables support for modern forms of interrupt handlers, which handle the flow details…
handle_edge_irq – edge type IRQ handler Synopsis void handle_edge_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Interrupt occures on the falling and/or rising edge of a hardware signal. The occurrence is latched into the irq controller hardware and must be acked in order to be reenabled. After the ack another…
handle_edge_eoi_irq – edge eoi type IRQ handler Synopsis void handle_edge_eoi_irq(struct irq_desc *desc); Arguments desc the interrupt description structure for this irq Description Similar as the above handle_edge_irq, but using eoi and w/o the mask/unmask logic. Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
handle_early_requeue_pi_wakeup – Detect early wakeup on the initial futex Synopsis int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb, struct futex_q *q, union futex_key *key2, struct hrtimer_sleeper *timeout); Arguments hb the hash_bucket futex_q was original enqueued on q the futex_q woken while waiting to be requeued key2 the futex_key of the requeue target futex timeout the timeout associated with the…
gnet_stats_start_copy_compat – start dumping procedure in compatibility mode Synopsis int gnet_stats_start_copy_compat(struct sk_buff *skb, int type, int tc_stats_type, int xstats_type, spinlock_t *lock, struct gnet_dump *d, int padattr); Arguments skb socket buffer to put statistics TLVs into type TLV type for top level statistic TLV tc_stats_type TLV type for backward compatibility struct tc_stats TLV xstats_type TLV type…
gnet_stats_start_copy – start dumping procedure in compatibility mode Synopsis int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock, struct gnet_dump *d, int padattr); Arguments skb socket buffer to put statistics TLVs into type TLV type for top level statistic TLV lock statistics lock d dumping handle padattr padding attribute Description Initializes the dumping handle, grabs the…
gnet_stats_finish_copy – finish dumping procedure Synopsis int gnet_stats_finish_copy(struct gnet_dump *d); Arguments d dumping handle Description Corrects the length of the top level TLV to include all TLVs added by gnet_stats_copy_XXX calls. Adds the backward compatibility TLVs if gnet_stats_start_copy_compat was used and releases the statistics lock. Returns 0 on success or -1 with the statistic lock…
gnet_stats_copy_rate_est – copy rate estimator statistics into statistics TLV Synopsis int gnet_stats_copy_rate_est(struct gnet_dump *d, const struct gnet_stats_basic_packed *b, struct gnet_stats_rate_est64 *r); Arguments d dumping handle b basic statistics r rate estimator statistics Description Appends the rate estimator statistics to the top level TLV created by gnet_stats_start_copy. Returns 0 on success or -1 with the statistic…
gnet_stats_copy_queue – copy queue statistics into statistics TLV Synopsis int gnet_stats_copy_queue(struct gnet_dump *d, struct gnet_stats_queue __percpu *cpu_q, struct gnet_stats_queue *q, __u32 qlen); Arguments d dumping handle cpu_q per cpu queue statistics q queue statistics qlen queue length statistics Description Appends the queue statistics to the top level TLV created by gnet_stats_start_copy. Using per cpu queue…
gnet_stats_copy_basic – copy basic statistics into statistic TLV Synopsis int gnet_stats_copy_basic(const seqcount_t *running, struct gnet_dump *d, struct gnet_stats_basic_cpu __percpu *cpu, struct gnet_stats_basic_packed *b); Arguments running seqcount_t pointer d dumping handle cpu copy statistic per cpu b basic statistics Description Appends the basic statistics to the top level TLV created by gnet_stats_start_copy. Returns 0 on success…
gnet_stats_copy_app – copy application specific statistics into statistics TLV Synopsis int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len); Arguments d dumping handle st application specific statistics data len length of data Description Appends the application specific statistics to the top level TLV created by gnet_stats_start_copy and remembers the data for XSTATS if the dumping handle…
get_user_pages_fast – pin user pages in memory Synopsis int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); Arguments start starting user address nr_pages number of pages from start to pin write whether pages will be written to pages array that receives pointers to the pages pinned. Should be at least nr_pages long. Description…
get_super_thawed – get thawed superblock of a device Synopsis struct super_block *get_super_thawed(struct block_device *bdev); Arguments bdev device to get the superblock for Description Scans the superblock list and finds the superblock of the file system mounted on the device. The superblock is returned once it is thawed (or immediately if it was not frozen). NULL…
get_super – get the superblock of a device Synopsis struct super_block *get_super(struct block_device *bdev); Arguments bdev device to get the superblock for Scans the superblock list and finds the superblock of the file system mounted on the device given. NULL is returned if no match is found. Copyright