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[PATCH] kernel-doc for relay interface
Add relay interface support to DocBook/kernel-api.tmpl. Fix typos etc. in relay.c and relayfs.txt. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Randy Dunlap
Linus Torvalds
parent
c0d92cbc58
commit
4c78a66393
2 changed files with 38 additions and 14 deletions
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@ -202,6 +202,22 @@ X!Ilib/string.c
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</sect1>
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</chapter>
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<chapter id="relayfs">
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<title>relay interface support</title>
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<para>
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Relay interface support
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is designed to provide an efficient mechanism for tools and
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facilities to relay large amounts of data from kernel space to
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user space.
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</para>
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<sect1><title>relay interface</title>
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!Ekernel/relay.c
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!Ikernel/relay.c
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</sect1>
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</chapter>
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<chapter id="vfs">
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<title>The Linux VFS</title>
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<sect1><title>The Filesystem types</title>
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@ -95,7 +95,7 @@ int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma)
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* @buf: the buffer struct
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* @size: total size of the buffer
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*
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* Returns a pointer to the resulting buffer, NULL if unsuccessful. The
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* Returns a pointer to the resulting buffer, %NULL if unsuccessful. The
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* passed in size will get page aligned, if it isn't already.
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*/
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static void *relay_alloc_buf(struct rchan_buf *buf, size_t *size)
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@ -132,10 +132,9 @@ depopulate:
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/**
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* relay_create_buf - allocate and initialize a channel buffer
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* @alloc_size: size of the buffer to allocate
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* @n_subbufs: number of sub-buffers in the channel
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* @chan: the relay channel
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*
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* Returns channel buffer if successful, NULL otherwise
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* Returns channel buffer if successful, %NULL otherwise.
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*/
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struct rchan_buf *relay_create_buf(struct rchan *chan)
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{
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@ -163,6 +162,7 @@ free_buf:
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/**
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* relay_destroy_channel - free the channel struct
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* @kref: target kernel reference that contains the relay channel
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*
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* Should only be called from kref_put().
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*/
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@ -194,6 +194,7 @@ void relay_destroy_buf(struct rchan_buf *buf)
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/**
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* relay_remove_buf - remove a channel buffer
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* @kref: target kernel reference that contains the relay buffer
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*
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* Removes the file from the fileystem, which also frees the
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* rchan_buf_struct and the channel buffer. Should only be called from
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@ -374,7 +375,7 @@ void relay_reset(struct rchan *chan)
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}
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EXPORT_SYMBOL_GPL(relay_reset);
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/**
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/*
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* relay_open_buf - create a new relay channel buffer
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*
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* Internal - used by relay_open().
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@ -448,12 +449,12 @@ static inline void setup_callbacks(struct rchan *chan,
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/**
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* relay_open - create a new relay channel
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* @base_filename: base name of files to create
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* @parent: dentry of parent directory, NULL for root directory
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* @parent: dentry of parent directory, %NULL for root directory
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* @subbuf_size: size of sub-buffers
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* @n_subbufs: number of sub-buffers
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* @cb: client callback functions
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*
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* Returns channel pointer if successful, NULL otherwise.
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* Returns channel pointer if successful, %NULL otherwise.
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*
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* Creates a channel buffer for each cpu using the sizes and
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* attributes specified. The created channel buffer files
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@ -585,7 +586,7 @@ EXPORT_SYMBOL_GPL(relay_switch_subbuf);
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* subbufs_consumed should be the number of sub-buffers newly consumed,
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* not the total consumed.
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*
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* NOTE: kernel clients don't need to call this function if the channel
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* NOTE: Kernel clients don't need to call this function if the channel
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* mode is 'overwrite'.
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*/
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void relay_subbufs_consumed(struct rchan *chan,
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@ -641,7 +642,7 @@ EXPORT_SYMBOL_GPL(relay_close);
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* relay_flush - close the channel
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* @chan: the channel
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*
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* Flushes all channel buffers i.e. forces buffer switch.
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* Flushes all channel buffers, i.e. forces buffer switch.
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*/
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void relay_flush(struct rchan *chan)
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{
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@ -729,7 +730,7 @@ static int relay_file_release(struct inode *inode, struct file *filp)
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return 0;
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}
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/**
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/*
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* relay_file_read_consume - update the consumed count for the buffer
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*/
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static void relay_file_read_consume(struct rchan_buf *buf,
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@ -756,7 +757,7 @@ static void relay_file_read_consume(struct rchan_buf *buf,
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}
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}
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/**
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/*
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* relay_file_read_avail - boolean, are there unconsumed bytes available?
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*/
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static int relay_file_read_avail(struct rchan_buf *buf, size_t read_pos)
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@ -793,6 +794,8 @@ static int relay_file_read_avail(struct rchan_buf *buf, size_t read_pos)
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/**
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* relay_file_read_subbuf_avail - return bytes available in sub-buffer
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* @read_pos: file read position
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* @buf: relay channel buffer
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*/
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static size_t relay_file_read_subbuf_avail(size_t read_pos,
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struct rchan_buf *buf)
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@ -818,6 +821,8 @@ static size_t relay_file_read_subbuf_avail(size_t read_pos,
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/**
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* relay_file_read_start_pos - find the first available byte to read
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* @read_pos: file read position
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* @buf: relay channel buffer
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*
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* If the read_pos is in the middle of padding, return the
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* position of the first actually available byte, otherwise
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@ -844,6 +849,9 @@ static size_t relay_file_read_start_pos(size_t read_pos,
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/**
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* relay_file_read_end_pos - return the new read position
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* @read_pos: file read position
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* @buf: relay channel buffer
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* @count: number of bytes to be read
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*/
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static size_t relay_file_read_end_pos(struct rchan_buf *buf,
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size_t read_pos,
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@ -865,7 +873,7 @@ static size_t relay_file_read_end_pos(struct rchan_buf *buf,
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return end_pos;
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}
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/**
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/*
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* subbuf_read_actor - read up to one subbuf's worth of data
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*/
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static int subbuf_read_actor(size_t read_start,
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@ -890,7 +898,7 @@ static int subbuf_read_actor(size_t read_start,
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return ret;
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}
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/**
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/*
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* subbuf_send_actor - send up to one subbuf's worth of data
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*/
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static int subbuf_send_actor(size_t read_start,
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@ -933,7 +941,7 @@ typedef int (*subbuf_actor_t) (size_t read_start,
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read_descriptor_t *desc,
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read_actor_t actor);
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/**
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/*
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* relay_file_read_subbufs - read count bytes, bridging subbuf boundaries
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*/
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static inline ssize_t relay_file_read_subbufs(struct file *filp,
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