Re: Pipefs : doubts

["Randy.Dunlap" <rddunlap@osdl.org>]

selvakumar nagendran wrote:
> Hello linux-experts,
>     I went through the kernel source code file
> /fs/pipe.c and I found that the pipe file system
> configured as a module. But in lsmod I am unable to
> see it. This is my first doubt.

Where do you see that?
fs/pipe.o is always built into the kernel image.

>     My second doubt is, in pipe.c we have lot of
> symbols like 
> 
>   PIPE_WAITING_READERS(*inode)
>   PIPE_WAIT(*inode)
>   PIPE_MAX_RCHUNK(*inode)
>    What are they? funtions or macros? What they do or
> where are their implementation in the kernel source
> tree?

Macros.
See include/linux/pipe_fs_i.h

-- 
~Randy