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

> > swsusp-freeze-filesystems-during-suspend-rev-2.patch
> >
> > I think you need to give more thought to device-mapper
> > interactions here. If an underlying device is suspended
> > by device-mapper without freezing the filesystem (the
> > normal state) and you issue a freeze_bdev on a device
> > above it, the freeze_bdev may never return if it attempts
> > any synchronous I/O (as it should).
>
> 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?

Pavel
--
Thanks for all the (sleeping) penguins.
-
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: 2006-11-09 10:15    [W:0.106 / U:0.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site