free_percpu_irq – free an interrupt allocated with request_percpu_irq Synopsis void free_percpu_irq(unsigned int irq, void __percpu *dev_id); Arguments irq Interrupt line to free dev_id Device identity to free Description Remove a percpu interrupt handler. The handler is removed, but the interrupt line is not disabled. This must be done on each CPU before calling this function….
free_netdev – free network device Synopsis void free_netdev(struct net_device *dev); Arguments dev device Description This function does the last stage of destroying an allocated device interface. The reference to the device object is released. If this is the last reference then it will be freed. Must be called in process context. Copyright
free_irq – free an interrupt allocated with request_irq Synopsis void free_irq(unsigned int irq, void *dev_id); Arguments irq Interrupt line to free dev_id Device identity to free Description Remove an interrupt handler. The handler is removed and if the interrupt line is no longer in use by any driver it is disabled. On a shared IRQ…
free_dma – free a reserved system DMA channel Synopsis void free_dma(unsigned int dmanr); Arguments dmanr DMA channel number Copyright
free_bootmem_with_active_regions – Call memblock_free_early_nid for each active range Synopsis void free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn); Arguments nid The node to free memory on. If MAX_NUMNODES, all nodes are freed. max_low_pfn The highest PFN that will be passed to memblock_free_early_nid Description If an architecture guarantees that all ranges registered contain no holes and may be freed,…
free_area_init_nodes – Initialise all pg_data_t and zone data Synopsis void free_area_init_nodes(unsigned long *max_zone_pfn); Arguments max_zone_pfn an array of max PFNs for each zone Description This will call free_area_init_node for each active node in the system. Using the page ranges provided by memblock_set_node, the size of each zone in each node and their holes is calculated….
frames_to_bytes – Unit conversion of the size from frames to bytes Synopsis ssize_t frames_to_bytes(struct snd_pcm_runtime * runtime, snd_pcm_sframes_t size); Arguments runtime PCM runtime instance size size in frames Copyright
frame_aligned – Check whether the byte size is aligned to frames Synopsis int frame_aligned(struct snd_pcm_runtime *runtime, ssize_t bytes); Arguments runtime PCM runtime instance bytes size in bytes Copyright
for_each_itlb_entry – Iterate over free (non-wired) ITLB entries Synopsis for_each_itlb_entry(tlb); Arguments tlb TLB entry Author Paul Mundt <lethal [at] linux-sh.org> Author. Copyright
for_each_dtlb_entry – Iterate over free (non-wired) DTLB entries Synopsis for_each_dtlb_entry(tlb); Arguments tlb TLB entry Author Paul Mundt <lethal [at] linux-sh.org> Author. Copyright
follow_pfn – look up PFN at a user virtual address Synopsis int follow_pfn(struct vm_area_struct *vma, unsigned long address, unsigned long *pfn); Arguments vma memory mapping address user virtual address pfn location to store found PFN Description Only IO mappings and raw PFN mappings are allowed. Returns zero and the pfn at pfn on success, -ve…
fls64 – find last set bit in a 64-bit word Synopsis int fls64(__u64 x); Arguments x the word to search Description This is defined in a similar way as the libc and compiler builtin ffsll, but returns the position of the most significant set bit. fls64(value) returns 0 if value is 0 or the position…
fls – find last set bit in word Synopsis int fls(int x); Arguments x the word to search Description This is defined in a similar way as the libc and compiler builtin ffs, but returns the position of the most significant set bit. fls(value) returns 0 if value is 0 or the position of the…
flock_lock_inode_wait – Apply a FLOCK-style lock to a file Synopsis int flock_lock_inode_wait(struct inode *inode, struct file_lock *fl); Arguments inode inode of the file to apply to fl The lock to be applied Description Apply a FLOCK style lock request to an inode. Copyright
fixup_owner – Post lock pi_state and corner case management Synopsis int fixup_owner(u32 __user *uaddr, struct futex_q *q, int locked); Arguments uaddr user address of the futex q futex_q (contains pi_state and access to the rt_mutex) locked if the attempt to take the rt_mutex succeeded (1) or not (0) Description After attempting to lock an rt_mutex,…
find_next_best_node – find the next node that should appear in a given node’s fallback list Synopsis int find_next_best_node(int node, nodemask_t *used_node_mask); Arguments node node whose fallback list we’re appending used_node_mask nodemask_t of already used nodes Description We use a number of factors to determine which is the next node that should appear on a given…
find_min_pfn_with_active_regions – Find the minimum PFN registered Synopsis unsigned long find_min_pfn_with_active_regions(void); Arguments void no arguments Description It returns the minimum PFN based on information provided via memblock_set_node. Copyright
find_lock_entry – locate, pin and lock a page cache entry Synopsis struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset); Arguments mapping the address_space to search offset the page cache index Description Looks up the page cache slot at mapping & offset. If there is a page cache page, it is returned locked and with an increased…
find_inode_nowait – find an inode in the inode cache Synopsis struct inode *find_inode_nowait(struct super_block *sb, unsigned long hashval, int (*match)(struct inode *, unsigned long, void *), void *data); Arguments sb super block of file system to search hashval hash value (usually inode number) to search for match callback used for comparisons between inodes data opaque…
find_get_pages_tag – find and return pages that match tag Synopsis unsigned find_get_pages_tag(struct address_space *mapping, pgoff_t *index, int tag, unsigned int nr_pages, struct page **pages); Arguments mapping the address_space to search index the starting page index tag the tag index nr_pages the maximum number of pages pages where the resulting pages are placed Description Like find_get_pages,…