Re: GSoC-2016

[christos%zoulas.com@localhost (Christos Zoulas)]

On Jun 2, 11:48am, hrishi.goyal%gmail.com@localhost (HRISHIKESH GOYAL) wrote:
-- Subject: Re: GSoC-2016

| Alright sir. I will send you queries on Email. :)
| At present I am able to read  files having extents based files.
| But I need to call bmap routine for extents based files explicitly. I want
| to invoke it automatically according the value of field  i_flags in inode.
| I see i_flag value should be different for files supporting extents from
| the files which dont support. but It is same in my case.
| 
| another generic problem that will help me considerably is I want to
| disable/clear cache memory. I want corresponding to each command in
| userland, there is  lower level disk read. Which will help me in tracing fs
| routines.

What do you mean by "cache memory"? The disk buffer cache? If you want
this kind of control I suggest that you switch developing using rump...
Then you can use a debugger and treat the whole kernel and filesystem
as a userland program.

christos