On Wed, 29 Sep 2004 09:36:29 -0400, Bijoy Thomas <bijoyjth@xxxxxxx> wrote: > Once you call read() on a file descriptor, the VFS layer routes it to the read function of the actual filesystem (via the file_operations struct). The filesystem read then calls bread() to get the actual blocks from the disk into memory. > > I think the function you are looking for are bread() and block_read(). > > Regards, > Bijoy. > Now, I got it. The Block device read operation passes through the buffer cache. Thanks for that info. Now, If it is not in Buffer Cache. How does Buffer Cache gets data from the disk. Which function Does it call? thanks Manish -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
