generic_pipe_buf_map(9)

NAME

generic_pipe_buf_map - virtually map a pipe buffer

SYNOPSIS

void * generic_pipe_buf_map(struct pipe_inode_info * pipe,
                            struct  pipe_buffer * buf, int
atomic);

ARGUMENTS

pipe

the pipe that the buffer belongs to

buf

the buffer that should be mapped

atomic

whether to use an atomic map

DESCRIPTION

This function returns a kernel virtual address mapping for

the
pipe_buffer passed in buf. If atomic is set, an atomic map

is provided
and the caller has to be careful not to fault before call

ing the unmap
function.

Note that this function occupies KM_USER0 if atomic != 0.

COPYRIGHT

GENERIC_PIPE_BUF_MAP(9)