Go to the source code of this file.
|
| void | pipe_lock (struct pipe_inode_info *) |
| |
| void | pipe_unlock (struct pipe_inode_info *) |
| |
| void | pipe_double_lock (struct pipe_inode_info *, struct pipe_inode_info *) |
| |
| int | pipe_proc_fn (struct ctl_table *, int, void __user *, size_t *, loff_t *) |
| |
| void | pipe_wait (struct pipe_inode_info *pipe) |
| |
| struct pipe_inode_info * | alloc_pipe_info (struct inode *inode) |
| |
| void | free_pipe_info (struct inode *inode) |
| |
| void | __free_pipe_info (struct pipe_inode_info *) |
| |
| void * | generic_pipe_buf_map (struct pipe_inode_info *, struct pipe_buffer *, int) |
| |
| void | generic_pipe_buf_unmap (struct pipe_inode_info *, struct pipe_buffer *, void *) |
| |
| void | generic_pipe_buf_get (struct pipe_inode_info *, struct pipe_buffer *) |
| |
| int | generic_pipe_buf_confirm (struct pipe_inode_info *, struct pipe_buffer *) |
| |
| int | generic_pipe_buf_steal (struct pipe_inode_info *, struct pipe_buffer *) |
| |
| void | generic_pipe_buf_release (struct pipe_inode_info *, struct pipe_buffer *) |
| |
| long | pipe_fcntl (struct file *, unsigned int, unsigned long arg) |
| |
| struct pipe_inode_info * | get_pipe_info (struct file *file) |
| |
| int | create_pipe_files (struct file **, int) |
| |
| #define PIPE_BUF_FLAG_ATOMIC 0x02 /* was atomically mapped */ |
| #define PIPE_BUF_FLAG_GIFT 0x04 /* page is a gift */ |
| #define PIPE_BUF_FLAG_LRU 0x01 /* page is on the LRU */ |
| #define PIPE_BUF_FLAG_PACKET 0x08 /* read() as a packet */ |
| #define PIPE_DEF_BUFFERS 16 |
generic_pipe_buf_confirm - verify contents of the pipe buffer : the pipe that the buffer belongs to : the buffer to confirm
Description: This function does nothing, because the generic pipe code uses pages that are always good when inserted into the pipe.
Definition at line 317 of file pipe.c.
generic_pipe_buf_get - get a reference to a &struct pipe_buffer : the pipe that the buffer belongs to : the buffer to get a reference to
Description: This function grabs an extra reference to . It's used in in the tee() system call, when we duplicate the buffers in one pipe into another.
Definition at line 302 of file pipe.c.
generic_pipe_buf_map - virtually map a pipe buffer : the pipe that the buffer belongs to : the buffer that should be mapped : whether to use an atomic map
Description: This function returns a kernel virtual address mapping for the pipe_buffer passed in . If is set, an atomic map is provided and the caller has to be careful not to fault before calling the unmap function.
Note that this function calls kmap_atomic() if != 0.
Definition at line 229 of file pipe.c.
generic_pipe_buf_release - put a reference to a &struct pipe_buffer : the pipe that the buffer belongs to : the buffer to put a reference to
Description: This function releases a reference to .
Definition at line 332 of file pipe.c.
generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer : the pipe that the buffer belongs to : the buffer to attempt to steal
Description: This function attempts to steal the &struct page attached to . If successful, this function returns 0 and returns with the page locked. The caller may then reuse the page for whatever he wishes; the typical use is insertion into a different file page cache.
Definition at line 273 of file pipe.c.
generic_pipe_buf_unmap - unmap a previously mapped pipe buffer : the pipe that the buffer belongs to : the buffer that should be unmapped : the data that the mapping function returned
Description: This function undoes the mapping that ->map() provided.
Definition at line 250 of file pipe.c.
| unsigned int pipe_max_size |
| unsigned int pipe_min_size |
1.8.2