lkml.org 
[lkml]   [2005]   [Oct]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [swsusp] separate snapshot functionality to separate file
Hi!

> > Split swsusp.c into swsusp.c and snapshot.c. Snapshot only cares
> > provides system snapshot/restore functionality, while swsusp.c will
> > provide disk i/o. It should enable untangling of the code in future;
> > swsusp.c parts can mostly be done in userspace.
> >
> > No code changes.
>
> I think that the functions:
>
> read_suspend_image()
> read_pagedir()
> swsusp_pagedir_relocate() (BTW, why there's "swsusp_"?)
> check_pagedir() (BTW, misleading name)
> data_read()
> eat_page()
> get_usable_page()
> free_eaten_memory()
>
> should be moved to snapshot.c as well, because they are in fact
> symmetrical to what's there (they perform the reverse of creating
> the snapshot and use analogous data structures). IMO the code
> change required would not be so drammatic and all of the functions
> that _operate_ on the snapshot would be in the same file.

No. read_suspend_image/read_pagedir/data_read is image reading. That
does not belong to snaphost. The rest is notthat clear, but I have it
working in userspace.

Image creation is still done in kernel space, but I think that kernel
<-> user interface is going to be cleaner that way, and I do not think
pushing it to user is so huge win.

Yes, names are not ideal, but that will be followup patch.
Pavel
--
if you have sharp zaurus hardware you don't need... you know my address
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-10-04 01:20    [W:0.082 / U:0.576 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site