lkml.org 
[lkml]   [2007]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway
From
Date
> > So to summarize, the plan that makes things work with fuse is:
> >
> >  - For STR, don't do the freezer thing.
> >
> >  - For STD, don't sys_sync() after you froze
> >
> > There might be -other- issues, but that should get you through some of
>
> At the risk of repeating myself. Character device drivers are written
> with the assumption that normal io and suspend/resume do not race
> with each other due to the freezer.
> What do you intend to do about that?

Oliver, can you please explain your worries in a bit more detail?

I don't claim to know anything about how STR or hibernate works, but
neither seem to have any problem with I/O on the fuse device "racing"
with them.

And conceptually I can't see anything that would cause trouble either.
The fuse kernel module just provides a specialized IPC mechanism,
where one userspace process communicates with another using file
operations and a char dev.

Miklos
-
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: 2007-07-03 12:51    [W:0.247 / U:31.664 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site