[lkml]   [2006]   [Nov]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2.6.19 5/5] fs: freeze_bdev with semaphore not mutex

> > > Well, it looks like the interactions with dm add quite a bit of
> > > complexity here.
> >
> > What about just fixing xfs (thou shall not write to disk when kernel
> > threads are frozen), and getting rid of blockdev freezing?
> Well, first I must admit you were absolutely right being suspicious with
> respect to this stuff.

(OTOH your patch found real bugs in suspend.c, so...)

> OTOH I have no idea _how_ we can tell xfs that the processes have been
> frozen. Should we introduce a global flag for that or something?

I guess XFS should just do all the writes from process context, and
refuse any writing when its threads are frozen... I actually still
believe it is doing the right thing, because you can't really write to
disk from timer.
(cesky, pictures)
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-11-09 17:03    [W:0.125 / U:6.960 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site